./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b2243f2ebf184fce0ef7b08cdc971efef96ae919ab8c33e807ab93ab6dbfb0b7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:39:19,355 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:39:19,423 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 06:39:19,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:39:19,429 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:39:19,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:39:19,463 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:39:19,464 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:39:19,464 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:39:19,465 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:39:19,465 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:39:19,466 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:39:19,466 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:39:19,467 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:39:19,467 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:39:19,468 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:39:19,469 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:39:19,477 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:39:19,478 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:39:19,478 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:39:19,479 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:39:19,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:39:19,480 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:39:19,480 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:39:19,481 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:39:19,481 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:39:19,481 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:39:19,482 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:39:19,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:39:19,483 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:39:19,483 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:39:19,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:39:19,484 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:39:19,484 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:39:19,485 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:39:19,485 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:39:19,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:39:19,486 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:39:19,486 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:39:19,487 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:39:19,487 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:39:19,488 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:39:19,488 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2243f2ebf184fce0ef7b08cdc971efef96ae919ab8c33e807ab93ab6dbfb0b7 [2023-11-29 06:39:19,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:39:19,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:39:19,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:39:19,747 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:39:19,747 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:39:19,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/email_spec0_product40.cil.c [2023-11-29 06:39:22,759 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:39:23,081 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:39:23,082 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/sv-benchmarks/c/product-lines/email_spec0_product40.cil.c [2023-11-29 06:39:23,103 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/data/e3478f86a/ce670a76f29247e9b4063addcbb3b228/FLAG351216ea7 [2023-11-29 06:39:23,118 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/data/e3478f86a/ce670a76f29247e9b4063addcbb3b228 [2023-11-29 06:39:23,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:39:23,122 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:39:23,124 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:39:23,124 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:39:23,129 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:39:23,130 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:39:23" (1/1) ... [2023-11-29 06:39:23,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@458c4b6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:23, skipping insertion in model container [2023-11-29 06:39:23,131 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:39:23" (1/1) ... [2023-11-29 06:39:23,215 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:39:23,541 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/sv-benchmarks/c/product-lines/email_spec0_product40.cil.c[7657,7670] [2023-11-29 06:39:23,872 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:39:23,890 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:39:23,903 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-11-29 06:39:23,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [392] [2023-11-29 06:39:23,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [401] [2023-11-29 06:39:23,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [683] [2023-11-29 06:39:23,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [718] [2023-11-29 06:39:23,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [1780] [2023-11-29 06:39:23,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1800] [2023-11-29 06:39:23,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2022] [2023-11-29 06:39:23,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2039] [2023-11-29 06:39:23,908 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2103] [2023-11-29 06:39:23,908 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2510] [2023-11-29 06:39:23,924 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/sv-benchmarks/c/product-lines/email_spec0_product40.cil.c[7657,7670] [2023-11-29 06:39:24,001 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:39:24,035 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:39:24,045 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:39:24,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:24 WrapperNode [2023-11-29 06:39:24,045 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:39:24,047 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:39:24,047 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:39:24,047 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:39:24,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:24" (1/1) ... [2023-11-29 06:39:24,089 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:24" (1/1) ... [2023-11-29 06:39:24,146 INFO L138 Inliner]: procedures = 127, calls = 205, calls flagged for inlining = 52, calls inlined = 49, statements flattened = 936 [2023-11-29 06:39:24,147 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:39:24,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:39:24,148 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:39:24,148 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:39:24,162 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:24" (1/1) ... [2023-11-29 06:39:24,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:24" (1/1) ... [2023-11-29 06:39:24,171 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:24" (1/1) ... [2023-11-29 06:39:24,201 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-11-29 06:39:24,201 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:24" (1/1) ... [2023-11-29 06:39:24,201 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:24" (1/1) ... [2023-11-29 06:39:24,222 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:24" (1/1) ... [2023-11-29 06:39:24,232 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:24" (1/1) ... [2023-11-29 06:39:24,237 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:24" (1/1) ... [2023-11-29 06:39:24,243 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:24" (1/1) ... [2023-11-29 06:39:24,252 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:39:24,253 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:39:24,253 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:39:24,253 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:39:24,254 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:24" (1/1) ... [2023-11-29 06:39:24,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:39:24,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:39:24,289 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:39:24,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:39:24,320 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-29 06:39:24,320 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-29 06:39:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-29 06:39:24,321 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-29 06:39:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-29 06:39:24,321 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-29 06:39:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-11-29 06:39:24,321 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-11-29 06:39:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-29 06:39:24,322 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-29 06:39:24,322 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-29 06:39:24,322 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-29 06:39:24,322 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-29 06:39:24,322 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-29 06:39:24,322 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-29 06:39:24,322 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-29 06:39:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-29 06:39:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-29 06:39:24,323 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-29 06:39:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-11-29 06:39:24,323 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-11-29 06:39:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-29 06:39:24,323 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-29 06:39:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:39:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-29 06:39:24,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-29 06:39:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-29 06:39:24,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-29 06:39:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-29 06:39:24,324 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-29 06:39:24,325 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-29 06:39:24,325 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-29 06:39:24,325 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-29 06:39:24,325 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-29 06:39:24,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-29 06:39:24,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-29 06:39:24,325 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-29 06:39:24,325 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-29 06:39:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:39:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 06:39:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 06:39:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 06:39:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-29 06:39:24,326 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-29 06:39:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-29 06:39:24,327 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-29 06:39:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:39:24,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:39:24,557 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:39:24,559 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:39:25,285 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:39:25,361 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:39:25,362 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 06:39:25,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:39:25 BoogieIcfgContainer [2023-11-29 06:39:25,363 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:39:25,366 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:39:25,366 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:39:25,369 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:39:25,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:39:23" (1/3) ... [2023-11-29 06:39:25,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a1b5f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:39:25, skipping insertion in model container [2023-11-29 06:39:25,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:39:24" (2/3) ... [2023-11-29 06:39:25,371 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a1b5f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:39:25, skipping insertion in model container [2023-11-29 06:39:25,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:39:25" (3/3) ... [2023-11-29 06:39:25,373 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product40.cil.c [2023-11-29 06:39:25,390 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:39:25,391 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 06:39:25,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:39:25,462 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7c63134e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:39:25,463 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 06:39:25,470 INFO L276 IsEmpty]: Start isEmpty. Operand has 311 states, 237 states have (on average 1.6244725738396624) internal successors, (385), 240 states have internal predecessors, (385), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-29 06:39:25,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 06:39:25,508 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:39:25,509 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:39:25,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:39:25,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:39:25,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1939816204, now seen corresponding path program 1 times [2023-11-29 06:39:25,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:39:25,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069253254] [2023-11-29 06:39:25,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:25,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:39:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:26,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:39:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:26,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:39:26,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:26,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:39:26,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:26,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 06:39:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:26,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 06:39:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:26,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-29 06:39:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:26,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 06:39:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:26,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-29 06:39:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:26,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 06:39:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:26,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 06:39:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:26,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-29 06:39:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:26,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 06:39:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:26,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-29 06:39:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:26,299 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-29 06:39:26,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:39:26,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069253254] [2023-11-29 06:39:26,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069253254] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:39:26,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345477424] [2023-11-29 06:39:26,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:26,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:39:26,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:39:26,304 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:39:26,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:39:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:26,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 06:39:26,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:39:26,799 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 06:39:26,799 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:39:26,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345477424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:39:26,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:39:26,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-11-29 06:39:26,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102404921] [2023-11-29 06:39:26,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:39:26,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:39:26,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:39:26,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:39:26,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:39:26,853 INFO L87 Difference]: Start difference. First operand has 311 states, 237 states have (on average 1.6244725738396624) internal successors, (385), 240 states have internal predecessors, (385), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:39:26,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:39:26,973 INFO L93 Difference]: Finished difference Result 434 states and 670 transitions. [2023-11-29 06:39:26,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:39:26,976 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 97 [2023-11-29 06:39:26,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:39:26,997 INFO L225 Difference]: With dead ends: 434 [2023-11-29 06:39:26,997 INFO L226 Difference]: Without dead ends: 308 [2023-11-29 06:39:27,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:39:27,009 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:39:27,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 469 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:39:27,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2023-11-29 06:39:27,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2023-11-29 06:39:27,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 235 states have (on average 1.6085106382978724) internal successors, (378), 237 states have internal predecessors, (378), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2023-11-29 06:39:27,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 481 transitions. [2023-11-29 06:39:27,087 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 481 transitions. Word has length 97 [2023-11-29 06:39:27,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:39:27,089 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 481 transitions. [2023-11-29 06:39:27,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:39:27,090 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 481 transitions. [2023-11-29 06:39:27,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 06:39:27,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:39:27,100 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:39:27,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:39:27,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 06:39:27,302 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:39:27,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:39:27,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1119673316, now seen corresponding path program 1 times [2023-11-29 06:39:27,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:39:27,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104341586] [2023-11-29 06:39:27,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:27,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:39:27,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:27,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:39:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:27,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:39:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:27,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:39:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:27,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 06:39:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:27,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 06:39:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:27,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-29 06:39:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:27,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 06:39:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:27,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 06:39:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:27,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 06:39:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:27,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-29 06:39:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:27,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 06:39:27,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:27,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 06:39:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:27,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 06:39:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:27,710 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-29 06:39:27,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:39:27,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104341586] [2023-11-29 06:39:27,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104341586] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:39:27,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502486536] [2023-11-29 06:39:27,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:27,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:39:27,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:39:27,714 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:39:27,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:39:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:28,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:39:28,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:39:28,118 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 06:39:28,118 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:39:28,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502486536] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:39:28,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:39:28,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-29 06:39:28,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898004175] [2023-11-29 06:39:28,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:39:28,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:39:28,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:39:28,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:39:28,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:39:28,123 INFO L87 Difference]: Start difference. First operand 308 states and 481 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:39:28,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:39:28,209 INFO L93 Difference]: Finished difference Result 430 states and 654 transitions. [2023-11-29 06:39:28,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:39:28,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 98 [2023-11-29 06:39:28,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:39:28,215 INFO L225 Difference]: With dead ends: 430 [2023-11-29 06:39:28,216 INFO L226 Difference]: Without dead ends: 310 [2023-11-29 06:39:28,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:39:28,220 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 0 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:39:28,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 931 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:39:28,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-29 06:39:28,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2023-11-29 06:39:28,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 237 states have (on average 1.6033755274261603) internal successors, (380), 239 states have internal predecessors, (380), 52 states have call successors, (52), 20 states have call predecessors, (52), 20 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2023-11-29 06:39:28,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 483 transitions. [2023-11-29 06:39:28,258 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 483 transitions. Word has length 98 [2023-11-29 06:39:28,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:39:28,259 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 483 transitions. [2023-11-29 06:39:28,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:39:28,259 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 483 transitions. [2023-11-29 06:39:28,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 06:39:28,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:39:28,263 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:39:28,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 06:39:28,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:39:28,464 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:39:28,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:39:28,465 INFO L85 PathProgramCache]: Analyzing trace with hash 647137385, now seen corresponding path program 1 times [2023-11-29 06:39:28,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:39:28,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862326586] [2023-11-29 06:39:28,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:28,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:39:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:28,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:39:28,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:28,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:39:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:28,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:39:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:28,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 06:39:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:28,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 06:39:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:28,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-29 06:39:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:28,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 06:39:28,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:28,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 06:39:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:28,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 06:39:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:28,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 06:39:28,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:28,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-29 06:39:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:28,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 06:39:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:28,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-29 06:39:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:28,851 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:39:28,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:39:28,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862326586] [2023-11-29 06:39:28,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862326586] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:39:28,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902874540] [2023-11-29 06:39:28,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:28,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:39:28,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:39:28,856 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:39:28,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:39:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:29,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:39:29,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:39:29,254 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 06:39:29,254 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:39:29,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902874540] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:39:29,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:39:29,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-29 06:39:29,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466956481] [2023-11-29 06:39:29,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:39:29,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:39:29,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:39:29,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:39:29,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:39:29,258 INFO L87 Difference]: Start difference. First operand 310 states and 483 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:39:29,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:39:29,344 INFO L93 Difference]: Finished difference Result 672 states and 1065 transitions. [2023-11-29 06:39:29,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:39:29,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 105 [2023-11-29 06:39:29,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:39:29,351 INFO L225 Difference]: With dead ends: 672 [2023-11-29 06:39:29,351 INFO L226 Difference]: Without dead ends: 384 [2023-11-29 06:39:29,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:39:29,355 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 136 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:39:29,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 903 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:39:29,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2023-11-29 06:39:29,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 379. [2023-11-29 06:39:29,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 292 states have (on average 1.6232876712328768) internal successors, (474), 294 states have internal predecessors, (474), 66 states have call successors, (66), 20 states have call predecessors, (66), 20 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2023-11-29 06:39:29,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 605 transitions. [2023-11-29 06:39:29,390 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 605 transitions. Word has length 105 [2023-11-29 06:39:29,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:39:29,390 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 605 transitions. [2023-11-29 06:39:29,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:39:29,391 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 605 transitions. [2023-11-29 06:39:29,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-29 06:39:29,395 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:39:29,396 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:39:29,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 06:39:29,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:39:29,597 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:39:29,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:39:29,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1893821545, now seen corresponding path program 1 times [2023-11-29 06:39:29,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:39:29,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486241031] [2023-11-29 06:39:29,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:29,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:39:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:29,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:39:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:29,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:39:29,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:29,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:39:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:29,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 06:39:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:29,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 06:39:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:29,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-29 06:39:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:29,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 06:39:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:29,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 06:39:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:29,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-29 06:39:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:29,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 06:39:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:29,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-29 06:39:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:29,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 06:39:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:29,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-29 06:39:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:29,894 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:39:29,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:39:29,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486241031] [2023-11-29 06:39:29,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486241031] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:39:29,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771128537] [2023-11-29 06:39:29,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:29,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:39:29,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:39:29,897 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:39:29,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 06:39:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:30,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:39:30,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:39:30,349 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 06:39:30,350 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:39:30,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771128537] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:39:30,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:39:30,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-29 06:39:30,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10415026] [2023-11-29 06:39:30,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:39:30,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:39:30,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:39:30,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:39:30,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:39:30,354 INFO L87 Difference]: Start difference. First operand 379 states and 605 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 06:39:30,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:39:30,526 INFO L93 Difference]: Finished difference Result 753 states and 1204 transitions. [2023-11-29 06:39:30,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:39:30,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 106 [2023-11-29 06:39:30,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:39:30,533 INFO L225 Difference]: With dead ends: 753 [2023-11-29 06:39:30,533 INFO L226 Difference]: Without dead ends: 381 [2023-11-29 06:39:30,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:39:30,536 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 8 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1817 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:39:30,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1817 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:39:30,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2023-11-29 06:39:30,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2023-11-29 06:39:30,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 293 states have (on average 1.621160409556314) internal successors, (475), 296 states have internal predecessors, (475), 66 states have call successors, (66), 20 states have call predecessors, (66), 21 states have return successors, (67), 64 states have call predecessors, (67), 65 states have call successors, (67) [2023-11-29 06:39:30,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 608 transitions. [2023-11-29 06:39:30,565 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 608 transitions. Word has length 106 [2023-11-29 06:39:30,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:39:30,565 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 608 transitions. [2023-11-29 06:39:30,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 06:39:30,566 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 608 transitions. [2023-11-29 06:39:30,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 06:39:30,570 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:39:30,570 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:39:30,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 06:39:30,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:39:30,777 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:39:30,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:39:30,777 INFO L85 PathProgramCache]: Analyzing trace with hash 460313661, now seen corresponding path program 1 times [2023-11-29 06:39:30,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:39:30,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466133721] [2023-11-29 06:39:30,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:30,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:39:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:30,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:39:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:30,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:39:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:30,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:39:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:31,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:39:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:31,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-29 06:39:31,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:31,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 06:39:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:31,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-29 06:39:31,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:31,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 06:39:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:31,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 06:39:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:31,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 06:39:31,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:31,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 06:39:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:31,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 06:39:31,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:31,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 06:39:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:31,131 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-29 06:39:31,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:39:31,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466133721] [2023-11-29 06:39:31,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466133721] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:39:31,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364648404] [2023-11-29 06:39:31,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:31,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:39:31,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:39:31,135 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:39:31,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 06:39:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:31,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:39:31,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:39:31,574 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 06:39:31,574 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:39:31,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364648404] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:39:31,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:39:31,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-11-29 06:39:31,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604501133] [2023-11-29 06:39:31,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:39:31,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:39:31,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:39:31,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:39:31,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:39:31,577 INFO L87 Difference]: Start difference. First operand 381 states and 608 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 06:39:31,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:39:31,744 INFO L93 Difference]: Finished difference Result 755 states and 1209 transitions. [2023-11-29 06:39:31,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:39:31,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 107 [2023-11-29 06:39:31,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:39:31,750 INFO L225 Difference]: With dead ends: 755 [2023-11-29 06:39:31,750 INFO L226 Difference]: Without dead ends: 383 [2023-11-29 06:39:31,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:39:31,753 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 8 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1803 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:39:31,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1803 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:39:31,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2023-11-29 06:39:31,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2023-11-29 06:39:31,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 294 states have (on average 1.619047619047619) internal successors, (476), 298 states have internal predecessors, (476), 66 states have call successors, (66), 20 states have call predecessors, (66), 22 states have return successors, (72), 64 states have call predecessors, (72), 65 states have call successors, (72) [2023-11-29 06:39:31,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 614 transitions. [2023-11-29 06:39:31,779 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 614 transitions. Word has length 107 [2023-11-29 06:39:31,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:39:31,780 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 614 transitions. [2023-11-29 06:39:31,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 06:39:31,780 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 614 transitions. [2023-11-29 06:39:31,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 06:39:31,783 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:39:31,784 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:39:31,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 06:39:31,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:39:31,985 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:39:31,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:39:31,985 INFO L85 PathProgramCache]: Analyzing trace with hash 540084531, now seen corresponding path program 1 times [2023-11-29 06:39:31,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:39:31,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715038527] [2023-11-29 06:39:31,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:31,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:39:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:32,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:39:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:32,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:39:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:32,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:39:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:32,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:39:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:32,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:39:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:32,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 06:39:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:32,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 06:39:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:32,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-29 06:39:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:32,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 06:39:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:32,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-29 06:39:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:32,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-29 06:39:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:32,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 06:39:32,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:32,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 06:39:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:32,319 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:39:32,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:39:32,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715038527] [2023-11-29 06:39:32,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715038527] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:39:32,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:39:32,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:39:32,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461640415] [2023-11-29 06:39:32,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:39:32,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:39:32,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:39:32,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:39:32,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:39:32,322 INFO L87 Difference]: Start difference. First operand 383 states and 614 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 06:39:35,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:39:35,214 INFO L93 Difference]: Finished difference Result 887 states and 1450 transitions. [2023-11-29 06:39:35,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:39:35,215 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 108 [2023-11-29 06:39:35,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:39:35,221 INFO L225 Difference]: With dead ends: 887 [2023-11-29 06:39:35,221 INFO L226 Difference]: Without dead ends: 523 [2023-11-29 06:39:35,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:39:35,225 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 959 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 2340 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 2710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 2340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:39:35,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [960 Valid, 1242 Invalid, 2710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 2340 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 06:39:35,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2023-11-29 06:39:35,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 383. [2023-11-29 06:39:35,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 294 states have (on average 1.619047619047619) internal successors, (476), 298 states have internal predecessors, (476), 66 states have call successors, (66), 20 states have call predecessors, (66), 22 states have return successors, (71), 64 states have call predecessors, (71), 65 states have call successors, (71) [2023-11-29 06:39:35,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 613 transitions. [2023-11-29 06:39:35,283 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 613 transitions. Word has length 108 [2023-11-29 06:39:35,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:39:35,284 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 613 transitions. [2023-11-29 06:39:35,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 06:39:35,285 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 613 transitions. [2023-11-29 06:39:35,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 06:39:35,288 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:39:35,289 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:39:35,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 06:39:35,289 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:39:35,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:39:35,290 INFO L85 PathProgramCache]: Analyzing trace with hash -791945943, now seen corresponding path program 2 times [2023-11-29 06:39:35,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:39:35,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138121983] [2023-11-29 06:39:35,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:35,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:39:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:35,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:39:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:35,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:39:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:35,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:39:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:35,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:39:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:35,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:39:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:35,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 06:39:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:35,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 06:39:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:35,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 06:39:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:35,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-29 06:39:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:35,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-29 06:39:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:35,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 06:39:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:35,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-29 06:39:35,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:35,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-29 06:39:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:35,580 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:39:35,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:39:35,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138121983] [2023-11-29 06:39:35,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138121983] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:39:35,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:39:35,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:39:35,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265498503] [2023-11-29 06:39:35,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:39:35,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:39:35,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:39:35,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:39:35,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:39:35,583 INFO L87 Difference]: Start difference. First operand 383 states and 613 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 06:39:38,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:39:38,305 INFO L93 Difference]: Finished difference Result 889 states and 1453 transitions. [2023-11-29 06:39:38,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:39:38,306 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 109 [2023-11-29 06:39:38,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:39:38,313 INFO L225 Difference]: With dead ends: 889 [2023-11-29 06:39:38,313 INFO L226 Difference]: Without dead ends: 525 [2023-11-29 06:39:38,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:39:38,316 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 956 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 2324 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 957 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 2690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 2324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:39:38,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [957 Valid, 1241 Invalid, 2690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 2324 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 06:39:38,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2023-11-29 06:39:38,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 385. [2023-11-29 06:39:38,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 295 states have (on average 1.616949152542373) internal successors, (477), 300 states have internal predecessors, (477), 66 states have call successors, (66), 20 states have call predecessors, (66), 23 states have return successors, (73), 64 states have call predecessors, (73), 65 states have call successors, (73) [2023-11-29 06:39:38,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 616 transitions. [2023-11-29 06:39:38,362 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 616 transitions. Word has length 109 [2023-11-29 06:39:38,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:39:38,362 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 616 transitions. [2023-11-29 06:39:38,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 06:39:38,363 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 616 transitions. [2023-11-29 06:39:38,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 06:39:38,366 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:39:38,366 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:39:38,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 06:39:38,367 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:39:38,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:39:38,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1332600818, now seen corresponding path program 1 times [2023-11-29 06:39:38,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:39:38,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722223423] [2023-11-29 06:39:38,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:38,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:39:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:38,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:39:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:38,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:39:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:38,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:39:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:38,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:39:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:38,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:39:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:38,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:39:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:38,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 06:39:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:38,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 06:39:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:38,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 06:39:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:38,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 06:39:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:38,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 06:39:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:38,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-29 06:39:38,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:38,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 06:39:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:38,643 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-29 06:39:38,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:39:38,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722223423] [2023-11-29 06:39:38,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722223423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:39:38,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:39:38,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 06:39:38,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150581940] [2023-11-29 06:39:38,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:39:38,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:39:38,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:39:38,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:39:38,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:39:38,646 INFO L87 Difference]: Start difference. First operand 385 states and 616 transitions. Second operand has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 06:39:42,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:39:42,201 INFO L93 Difference]: Finished difference Result 887 states and 1448 transitions. [2023-11-29 06:39:42,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:39:42,202 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 110 [2023-11-29 06:39:42,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:39:42,208 INFO L225 Difference]: With dead ends: 887 [2023-11-29 06:39:42,208 INFO L226 Difference]: Without dead ends: 525 [2023-11-29 06:39:42,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-29 06:39:42,211 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 967 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 3818 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 4188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 3818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:39:42,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 1718 Invalid, 4188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 3818 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 06:39:42,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2023-11-29 06:39:42,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 385. [2023-11-29 06:39:42,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 295 states have (on average 1.616949152542373) internal successors, (477), 300 states have internal predecessors, (477), 66 states have call successors, (66), 20 states have call predecessors, (66), 23 states have return successors, (72), 64 states have call predecessors, (72), 65 states have call successors, (72) [2023-11-29 06:39:42,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 615 transitions. [2023-11-29 06:39:42,261 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 615 transitions. Word has length 110 [2023-11-29 06:39:42,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:39:42,262 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 615 transitions. [2023-11-29 06:39:42,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 06:39:42,262 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 615 transitions. [2023-11-29 06:39:42,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-29 06:39:42,266 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:39:42,266 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:39:42,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 06:39:42,266 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:39:42,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:39:42,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1009648196, now seen corresponding path program 2 times [2023-11-29 06:39:42,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:39:42,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968356497] [2023-11-29 06:39:42,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:42,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:39:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:42,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:39:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:42,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:39:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:42,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:39:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:42,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:39:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:42,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:39:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:42,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:39:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:42,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 06:39:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:42,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 06:39:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:42,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 06:39:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:42,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-29 06:39:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:42,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 06:39:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:42,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-29 06:39:42,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:42,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-29 06:39:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:42,569 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-29 06:39:42,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:39:42,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968356497] [2023-11-29 06:39:42,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968356497] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:39:42,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:39:42,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 06:39:42,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373520188] [2023-11-29 06:39:42,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:39:42,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:39:42,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:39:42,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:39:42,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:39:42,572 INFO L87 Difference]: Start difference. First operand 385 states and 615 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 06:39:45,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:39:45,665 INFO L93 Difference]: Finished difference Result 889 states and 1454 transitions. [2023-11-29 06:39:45,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:39:45,666 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 111 [2023-11-29 06:39:45,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:39:45,671 INFO L225 Difference]: With dead ends: 889 [2023-11-29 06:39:45,671 INFO L226 Difference]: Without dead ends: 527 [2023-11-29 06:39:45,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-29 06:39:45,673 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 960 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 3864 mSolverCounterSat, 368 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 4232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 368 IncrementalHoareTripleChecker+Valid, 3864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:39:45,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 1718 Invalid, 4232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [368 Valid, 3864 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 06:39:45,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2023-11-29 06:39:45,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 387. [2023-11-29 06:39:45,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 296 states have (on average 1.614864864864865) internal successors, (478), 302 states have internal predecessors, (478), 66 states have call successors, (66), 20 states have call predecessors, (66), 24 states have return successors, (77), 64 states have call predecessors, (77), 65 states have call successors, (77) [2023-11-29 06:39:45,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 621 transitions. [2023-11-29 06:39:45,736 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 621 transitions. Word has length 111 [2023-11-29 06:39:45,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:39:45,736 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 621 transitions. [2023-11-29 06:39:45,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 06:39:45,737 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 621 transitions. [2023-11-29 06:39:45,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 06:39:45,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:39:45,741 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:39:45,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 06:39:45,741 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:39:45,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:39:45,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1543283159, now seen corresponding path program 1 times [2023-11-29 06:39:45,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:39:45,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771480321] [2023-11-29 06:39:45,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:45,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:39:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:45,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:39:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:45,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:39:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:45,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:39:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:45,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:39:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:45,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:39:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:45,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:39:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:46,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 06:39:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:46,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 06:39:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:46,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 06:39:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:46,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-29 06:39:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:46,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 06:39:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:46,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-29 06:39:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:46,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-29 06:39:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:46,047 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-29 06:39:46,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:39:46,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771480321] [2023-11-29 06:39:46,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771480321] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:39:46,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376383512] [2023-11-29 06:39:46,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:46,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:39:46,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:39:46,049 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:39:46,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 06:39:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:46,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:39:46,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:39:46,434 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 06:39:46,435 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:39:46,542 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 06:39:46,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376383512] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:39:46,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 06:39:46,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-11-29 06:39:46,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709313088] [2023-11-29 06:39:46,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 06:39:46,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 06:39:46,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:39:46,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 06:39:46,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:39:46,546 INFO L87 Difference]: Start difference. First operand 387 states and 621 transitions. Second operand has 15 states, 14 states have (on average 8.142857142857142) internal successors, (114), 11 states have internal predecessors, (114), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-29 06:39:50,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:39:50,169 INFO L93 Difference]: Finished difference Result 1328 states and 2265 transitions. [2023-11-29 06:39:50,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 06:39:50,170 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.142857142857142) internal successors, (114), 11 states have internal predecessors, (114), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 112 [2023-11-29 06:39:50,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:39:50,180 INFO L225 Difference]: With dead ends: 1328 [2023-11-29 06:39:50,181 INFO L226 Difference]: Without dead ends: 967 [2023-11-29 06:39:50,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-11-29 06:39:50,185 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 2179 mSDsluCounter, 1854 mSDsCounter, 0 mSdLazyCounter, 4379 mSolverCounterSat, 716 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2199 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 5095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 716 IncrementalHoareTripleChecker+Valid, 4379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:39:50,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2199 Valid, 2047 Invalid, 5095 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [716 Valid, 4379 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 06:39:50,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2023-11-29 06:39:50,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 812. [2023-11-29 06:39:50,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 642 states have (on average 1.6604361370716512) internal successors, (1066), 648 states have internal predecessors, (1066), 145 states have call successors, (145), 20 states have call predecessors, (145), 24 states have return successors, (166), 143 states have call predecessors, (166), 144 states have call successors, (166) [2023-11-29 06:39:50,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1377 transitions. [2023-11-29 06:39:50,266 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1377 transitions. Word has length 112 [2023-11-29 06:39:50,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:39:50,267 INFO L495 AbstractCegarLoop]: Abstraction has 812 states and 1377 transitions. [2023-11-29 06:39:50,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.142857142857142) internal successors, (114), 11 states have internal predecessors, (114), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-29 06:39:50,267 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1377 transitions. [2023-11-29 06:39:50,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-29 06:39:50,275 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:39:50,275 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:39:50,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-29 06:39:50,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 06:39:50,476 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:39:50,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:39:50,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1874019153, now seen corresponding path program 1 times [2023-11-29 06:39:50,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:39:50,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532389190] [2023-11-29 06:39:50,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:50,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:39:50,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:50,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:39:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:50,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:39:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:50,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:39:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:50,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:39:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:50,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:39:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:50,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:39:50,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:50,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 06:39:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:50,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 06:39:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:50,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 06:39:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:50,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 06:39:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:50,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-29 06:39:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:50,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 06:39:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:50,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-29 06:39:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:50,609 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 06:39:50,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:39:50,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532389190] [2023-11-29 06:39:50,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532389190] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:39:50,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:39:50,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:39:50,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13561159] [2023-11-29 06:39:50,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:39:50,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:39:50,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:39:50,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:39:50,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:39:50,612 INFO L87 Difference]: Start difference. First operand 812 states and 1377 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:39:52,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:39:52,426 INFO L93 Difference]: Finished difference Result 2103 states and 3654 transitions. [2023-11-29 06:39:52,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:39:52,427 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2023-11-29 06:39:52,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:39:52,441 INFO L225 Difference]: With dead ends: 2103 [2023-11-29 06:39:52,441 INFO L226 Difference]: Without dead ends: 1359 [2023-11-29 06:39:52,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:39:52,446 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 1082 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:39:52,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1100 Valid, 937 Invalid, 1805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 06:39:52,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2023-11-29 06:39:52,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1214. [2023-11-29 06:39:52,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1214 states, 965 states have (on average 1.6715025906735752) internal successors, (1613), 971 states have internal predecessors, (1613), 224 states have call successors, (224), 20 states have call predecessors, (224), 24 states have return successors, (255), 222 states have call predecessors, (255), 223 states have call successors, (255) [2023-11-29 06:39:52,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 2092 transitions. [2023-11-29 06:39:52,586 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 2092 transitions. Word has length 116 [2023-11-29 06:39:52,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:39:52,587 INFO L495 AbstractCegarLoop]: Abstraction has 1214 states and 2092 transitions. [2023-11-29 06:39:52,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:39:52,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 2092 transitions. [2023-11-29 06:39:52,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 06:39:52,597 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:39:52,598 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:39:52,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 06:39:52,598 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:39:52,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:39:52,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1427994548, now seen corresponding path program 1 times [2023-11-29 06:39:52,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:39:52,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716959155] [2023-11-29 06:39:52,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:52,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:39:52,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:52,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:39:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:52,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:39:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:52,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:39:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:52,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:39:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:52,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:39:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:52,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:39:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:52,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 06:39:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:52,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-29 06:39:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:52,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 06:39:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:52,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 06:39:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:52,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 06:39:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:52,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-29 06:39:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:52,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-29 06:39:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:52,743 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 06:39:52,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:39:52,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716959155] [2023-11-29 06:39:52,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716959155] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:39:52,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:39:52,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:39:52,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528741460] [2023-11-29 06:39:52,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:39:52,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:39:52,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:39:52,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:39:52,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:39:52,746 INFO L87 Difference]: Start difference. First operand 1214 states and 2092 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:39:54,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:39:54,653 INFO L93 Difference]: Finished difference Result 3106 states and 5431 transitions. [2023-11-29 06:39:54,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:39:54,654 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2023-11-29 06:39:54,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:39:54,671 INFO L225 Difference]: With dead ends: 3106 [2023-11-29 06:39:54,672 INFO L226 Difference]: Without dead ends: 2010 [2023-11-29 06:39:54,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:39:54,679 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 1079 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 431 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:39:54,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 916 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [431 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 06:39:54,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2010 states. [2023-11-29 06:39:54,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2010 to 1865. [2023-11-29 06:39:54,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1865 states, 1497 states have (on average 1.6760187040748162) internal successors, (2509), 1503 states have internal predecessors, (2509), 343 states have call successors, (343), 20 states have call predecessors, (343), 24 states have return successors, (374), 341 states have call predecessors, (374), 342 states have call successors, (374) [2023-11-29 06:39:54,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1865 states to 1865 states and 3226 transitions. [2023-11-29 06:39:54,852 INFO L78 Accepts]: Start accepts. Automaton has 1865 states and 3226 transitions. Word has length 117 [2023-11-29 06:39:54,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:39:54,853 INFO L495 AbstractCegarLoop]: Abstraction has 1865 states and 3226 transitions. [2023-11-29 06:39:54,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:39:54,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1865 states and 3226 transitions. [2023-11-29 06:39:54,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-29 06:39:54,869 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:39:54,869 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:39:54,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 06:39:54,869 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:39:54,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:39:54,870 INFO L85 PathProgramCache]: Analyzing trace with hash -72395327, now seen corresponding path program 1 times [2023-11-29 06:39:54,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:39:54,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979146167] [2023-11-29 06:39:54,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:54,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:39:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:54,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:39:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:54,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:39:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:54,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:39:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:54,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:39:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:54,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:39:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:54,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:39:54,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:54,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 06:39:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:55,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 06:39:55,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:55,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 06:39:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:55,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 06:39:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:55,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 06:39:55,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:55,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-29 06:39:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:55,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-29 06:39:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:55,020 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 06:39:55,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:39:55,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979146167] [2023-11-29 06:39:55,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979146167] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:39:55,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:39:55,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:39:55,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899453486] [2023-11-29 06:39:55,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:39:55,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:39:55,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:39:55,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:39:55,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:39:55,023 INFO L87 Difference]: Start difference. First operand 1865 states and 3226 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:39:56,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:39:56,996 INFO L93 Difference]: Finished difference Result 4630 states and 8149 transitions. [2023-11-29 06:39:56,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:39:56,996 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2023-11-29 06:39:56,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:39:57,017 INFO L225 Difference]: With dead ends: 4630 [2023-11-29 06:39:57,017 INFO L226 Difference]: Without dead ends: 3011 [2023-11-29 06:39:57,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:39:57,024 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1078 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 1781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:39:57,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 909 Invalid, 1781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 06:39:57,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3011 states. [2023-11-29 06:39:57,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3011 to 2866. [2023-11-29 06:39:57,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2866 states, 2336 states have (on average 1.680222602739726) internal successors, (3925), 2342 states have internal predecessors, (3925), 505 states have call successors, (505), 20 states have call predecessors, (505), 24 states have return successors, (552), 503 states have call predecessors, (552), 504 states have call successors, (552) [2023-11-29 06:39:57,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2866 states to 2866 states and 4982 transitions. [2023-11-29 06:39:57,255 INFO L78 Accepts]: Start accepts. Automaton has 2866 states and 4982 transitions. Word has length 118 [2023-11-29 06:39:57,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:39:57,255 INFO L495 AbstractCegarLoop]: Abstraction has 2866 states and 4982 transitions. [2023-11-29 06:39:57,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:39:57,256 INFO L276 IsEmpty]: Start isEmpty. Operand 2866 states and 4982 transitions. [2023-11-29 06:39:57,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 06:39:57,273 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:39:57,274 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:39:57,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 06:39:57,274 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:39:57,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:39:57,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1089591531, now seen corresponding path program 1 times [2023-11-29 06:39:57,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:39:57,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328117943] [2023-11-29 06:39:57,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:57,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:39:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:57,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:39:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:57,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:39:57,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:57,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:39:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:57,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:39:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:57,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:39:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:57,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:39:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:57,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-29 06:39:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:57,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 06:39:57,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:57,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-29 06:39:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:57,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-29 06:39:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:57,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 06:39:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:57,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 06:39:57,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:57,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 06:39:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:57,421 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 06:39:57,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:39:57,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328117943] [2023-11-29 06:39:57,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328117943] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:39:57,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:39:57,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:39:57,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903045979] [2023-11-29 06:39:57,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:39:57,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:39:57,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:39:57,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:39:57,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:39:57,424 INFO L87 Difference]: Start difference. First operand 2866 states and 4982 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:39:59,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:39:59,375 INFO L93 Difference]: Finished difference Result 7042 states and 12462 transitions. [2023-11-29 06:39:59,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:39:59,376 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2023-11-29 06:39:59,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:39:59,406 INFO L225 Difference]: With dead ends: 7042 [2023-11-29 06:39:59,406 INFO L226 Difference]: Without dead ends: 4631 [2023-11-29 06:39:59,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:39:59,415 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1076 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 1777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:39:59,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 908 Invalid, 1777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 06:39:59,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4631 states. [2023-11-29 06:39:59,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4631 to 4486. [2023-11-29 06:39:59,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4486 states, 3711 states have (on average 1.6833737537052007) internal successors, (6247), 3717 states have internal predecessors, (6247), 750 states have call successors, (750), 20 states have call predecessors, (750), 24 states have return successors, (823), 748 states have call predecessors, (823), 749 states have call successors, (823) [2023-11-29 06:39:59,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4486 states to 4486 states and 7820 transitions. [2023-11-29 06:39:59,711 INFO L78 Accepts]: Start accepts. Automaton has 4486 states and 7820 transitions. Word has length 119 [2023-11-29 06:39:59,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:39:59,711 INFO L495 AbstractCegarLoop]: Abstraction has 4486 states and 7820 transitions. [2023-11-29 06:39:59,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:39:59,712 INFO L276 IsEmpty]: Start isEmpty. Operand 4486 states and 7820 transitions. [2023-11-29 06:39:59,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 06:39:59,733 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:39:59,733 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:39:59,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 06:39:59,733 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:39:59,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:39:59,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1499279259, now seen corresponding path program 1 times [2023-11-29 06:39:59,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:39:59,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991726926] [2023-11-29 06:39:59,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:39:59,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:39:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:59,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:39:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:59,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:39:59,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:59,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:39:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:59,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:39:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:59,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:39:59,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:59,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:39:59,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:59,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 06:39:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:59,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 06:39:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:59,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-29 06:39:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:59,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-29 06:39:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:59,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 06:39:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:59,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 06:39:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:59,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-29 06:39:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:39:59,875 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 06:39:59,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:39:59,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991726926] [2023-11-29 06:39:59,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991726926] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:39:59,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:39:59,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:39:59,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521753196] [2023-11-29 06:39:59,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:39:59,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:39:59,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:39:59,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:39:59,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:39:59,878 INFO L87 Difference]: Start difference. First operand 4486 states and 7820 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:40:01,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:40:01,952 INFO L93 Difference]: Finished difference Result 11119 states and 19715 transitions. [2023-11-29 06:40:01,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:40:01,953 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2023-11-29 06:40:01,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:40:02,019 INFO L225 Difference]: With dead ends: 11119 [2023-11-29 06:40:02,019 INFO L226 Difference]: Without dead ends: 7391 [2023-11-29 06:40:02,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:40:02,037 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1076 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 1807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:40:02,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1095 Valid, 923 Invalid, 1807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 06:40:02,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7391 states. [2023-11-29 06:40:02,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7391 to 7246. [2023-11-29 06:40:02,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7246 states, 5978 states have (on average 1.6766477082636333) internal successors, (10023), 5984 states have internal predecessors, (10023), 1243 states have call successors, (1243), 20 states have call predecessors, (1243), 24 states have return successors, (1360), 1241 states have call predecessors, (1360), 1242 states have call successors, (1360) [2023-11-29 06:40:02,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7246 states to 7246 states and 12626 transitions. [2023-11-29 06:40:02,634 INFO L78 Accepts]: Start accepts. Automaton has 7246 states and 12626 transitions. Word has length 120 [2023-11-29 06:40:02,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:40:02,635 INFO L495 AbstractCegarLoop]: Abstraction has 7246 states and 12626 transitions. [2023-11-29 06:40:02,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:40:02,635 INFO L276 IsEmpty]: Start isEmpty. Operand 7246 states and 12626 transitions. [2023-11-29 06:40:02,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:40:02,664 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:40:02,665 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:40:02,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 06:40:02,665 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:40:02,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:02,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1791194695, now seen corresponding path program 1 times [2023-11-29 06:40:02,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:02,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463755342] [2023-11-29 06:40:02,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:02,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:02,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:40:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:02,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:40:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:02,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:40:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:02,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:40:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:02,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:40:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:02,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:40:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:02,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 06:40:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:02,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 06:40:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:02,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 06:40:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:02,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-29 06:40:02,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:02,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 06:40:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:02,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-29 06:40:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:02,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 06:40:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:02,809 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 06:40:02,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:40:02,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463755342] [2023-11-29 06:40:02,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463755342] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:40:02,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:40:02,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:40:02,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188175430] [2023-11-29 06:40:02,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:40:02,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:40:02,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:40:02,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:40:02,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:40:02,812 INFO L87 Difference]: Start difference. First operand 7246 states and 12626 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:40:04,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:40:04,932 INFO L93 Difference]: Finished difference Result 18478 states and 32735 transitions. [2023-11-29 06:40:04,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:40:04,932 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2023-11-29 06:40:04,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:40:04,994 INFO L225 Difference]: With dead ends: 18478 [2023-11-29 06:40:04,994 INFO L226 Difference]: Without dead ends: 12376 [2023-11-29 06:40:05,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:40:05,015 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 1073 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 1791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:40:05,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1091 Valid, 922 Invalid, 1791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 06:40:05,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12376 states. [2023-11-29 06:40:05,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12376 to 12231. [2023-11-29 06:40:05,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12231 states, 10141 states have (on average 1.6760674489695295) internal successors, (16997), 10147 states have internal predecessors, (16997), 2065 states have call successors, (2065), 20 states have call predecessors, (2065), 24 states have return successors, (2260), 2063 states have call predecessors, (2260), 2064 states have call successors, (2260) [2023-11-29 06:40:05,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12231 states to 12231 states and 21322 transitions. [2023-11-29 06:40:05,801 INFO L78 Accepts]: Start accepts. Automaton has 12231 states and 21322 transitions. Word has length 121 [2023-11-29 06:40:05,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:40:05,802 INFO L495 AbstractCegarLoop]: Abstraction has 12231 states and 21322 transitions. [2023-11-29 06:40:05,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:40:05,803 INFO L276 IsEmpty]: Start isEmpty. Operand 12231 states and 21322 transitions. [2023-11-29 06:40:05,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 06:40:05,838 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:40:05,839 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:40:05,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 06:40:05,839 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:40:05,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:05,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1168194327, now seen corresponding path program 1 times [2023-11-29 06:40:05,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:05,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447013055] [2023-11-29 06:40:05,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:05,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:05,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:40:05,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:05,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:40:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:05,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:40:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:05,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:40:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:05,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:40:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:05,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:40:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:05,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-29 06:40:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:05,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-29 06:40:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:05,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-29 06:40:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:05,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-29 06:40:05,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:05,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-29 06:40:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:05,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-29 06:40:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:05,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 06:40:05,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:05,990 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 06:40:05,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:40:05,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447013055] [2023-11-29 06:40:05,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447013055] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:40:05,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:40:05,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:40:05,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038894323] [2023-11-29 06:40:05,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:40:05,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:40:05,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:40:05,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:40:05,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:40:05,993 INFO L87 Difference]: Start difference. First operand 12231 states and 21322 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:40:08,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:40:08,498 INFO L93 Difference]: Finished difference Result 29444 states and 51918 transitions. [2023-11-29 06:40:08,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:40:08,499 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2023-11-29 06:40:08,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:40:08,597 INFO L225 Difference]: With dead ends: 29444 [2023-11-29 06:40:08,597 INFO L226 Difference]: Without dead ends: 19336 [2023-11-29 06:40:08,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:40:08,633 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 1069 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:40:08,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 890 Invalid, 1789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 06:40:08,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19336 states. [2023-11-29 06:40:09,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19336 to 19191. [2023-11-29 06:40:09,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19191 states, 15898 states have (on average 1.6536671279406214) internal successors, (26290), 15904 states have internal predecessors, (26290), 3268 states have call successors, (3268), 20 states have call predecessors, (3268), 24 states have return successors, (3607), 3266 states have call predecessors, (3607), 3267 states have call successors, (3607) [2023-11-29 06:40:09,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19191 states to 19191 states and 33165 transitions. [2023-11-29 06:40:09,912 INFO L78 Accepts]: Start accepts. Automaton has 19191 states and 33165 transitions. Word has length 122 [2023-11-29 06:40:09,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:40:09,912 INFO L495 AbstractCegarLoop]: Abstraction has 19191 states and 33165 transitions. [2023-11-29 06:40:09,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:40:09,913 INFO L276 IsEmpty]: Start isEmpty. Operand 19191 states and 33165 transitions. [2023-11-29 06:40:09,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 06:40:09,947 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:40:09,947 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:40:09,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 06:40:09,948 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:40:09,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:09,948 INFO L85 PathProgramCache]: Analyzing trace with hash 551061958, now seen corresponding path program 1 times [2023-11-29 06:40:09,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:09,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357978966] [2023-11-29 06:40:09,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:09,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:10,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:40:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:10,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:40:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:10,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:40:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:10,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:40:10,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:10,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:40:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:10,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:40:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:10,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 06:40:10,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:10,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 06:40:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:10,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-29 06:40:10,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:10,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 06:40:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:10,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-29 06:40:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:10,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-29 06:40:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:10,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-29 06:40:10,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:10,092 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 06:40:10,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:40:10,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357978966] [2023-11-29 06:40:10,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357978966] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:40:10,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:40:10,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:40:10,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712391751] [2023-11-29 06:40:10,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:40:10,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:40:10,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:40:10,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:40:10,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:40:10,095 INFO L87 Difference]: Start difference. First operand 19191 states and 33165 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:40:13,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:40:13,028 INFO L93 Difference]: Finished difference Result 50885 states and 89451 transitions. [2023-11-29 06:40:13,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:40:13,029 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2023-11-29 06:40:13,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:40:13,146 INFO L225 Difference]: With dead ends: 50885 [2023-11-29 06:40:13,146 INFO L226 Difference]: Without dead ends: 34465 [2023-11-29 06:40:13,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:40:13,178 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1067 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:40:13,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 910 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 06:40:13,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34465 states. [2023-11-29 06:40:15,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34465 to 34320. [2023-11-29 06:40:15,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34320 states, 28577 states have (on average 1.6508030933967877) internal successors, (47175), 28583 states have internal predecessors, (47175), 5718 states have call successors, (5718), 20 states have call predecessors, (5718), 24 states have return successors, (6331), 5716 states have call predecessors, (6331), 5717 states have call successors, (6331) [2023-11-29 06:40:15,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34320 states to 34320 states and 59224 transitions. [2023-11-29 06:40:15,165 INFO L78 Accepts]: Start accepts. Automaton has 34320 states and 59224 transitions. Word has length 123 [2023-11-29 06:40:15,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:40:15,165 INFO L495 AbstractCegarLoop]: Abstraction has 34320 states and 59224 transitions. [2023-11-29 06:40:15,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:40:15,165 INFO L276 IsEmpty]: Start isEmpty. Operand 34320 states and 59224 transitions. [2023-11-29 06:40:15,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 06:40:15,191 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:40:15,191 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:40:15,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 06:40:15,192 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:40:15,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:15,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1481076451, now seen corresponding path program 1 times [2023-11-29 06:40:15,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:15,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119923332] [2023-11-29 06:40:15,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:15,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:15,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:40:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:15,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:40:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:15,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:40:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:15,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:40:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:15,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:40:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:15,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:40:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:15,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 06:40:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:15,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 06:40:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:15,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 06:40:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:15,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 06:40:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:15,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-29 06:40:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:15,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-29 06:40:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:15,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-29 06:40:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:15,359 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 06:40:15,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:40:15,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119923332] [2023-11-29 06:40:15,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119923332] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:40:15,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:40:15,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:40:15,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796182917] [2023-11-29 06:40:15,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:40:15,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:40:15,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:40:15,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:40:15,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:40:15,362 INFO L87 Difference]: Start difference. First operand 34320 states and 59224 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:40:19,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:40:19,218 INFO L93 Difference]: Finished difference Result 93767 states and 164045 transitions. [2023-11-29 06:40:19,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:40:19,219 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2023-11-29 06:40:19,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:40:19,459 INFO L225 Difference]: With dead ends: 93767 [2023-11-29 06:40:19,459 INFO L226 Difference]: Without dead ends: 63141 [2023-11-29 06:40:19,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:40:19,535 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 1069 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 1782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:40:19,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 912 Invalid, 1782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 06:40:19,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63141 states. [2023-11-29 06:40:22,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63141 to 62996. [2023-11-29 06:40:22,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62996 states, 52740 states have (on average 1.6470800151687524) internal successors, (86867), 52746 states have internal predecessors, (86867), 10231 states have call successors, (10231), 20 states have call predecessors, (10231), 24 states have return successors, (11376), 10229 states have call predecessors, (11376), 10230 states have call successors, (11376) [2023-11-29 06:40:22,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62996 states to 62996 states and 108474 transitions. [2023-11-29 06:40:22,915 INFO L78 Accepts]: Start accepts. Automaton has 62996 states and 108474 transitions. Word has length 124 [2023-11-29 06:40:22,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:40:22,916 INFO L495 AbstractCegarLoop]: Abstraction has 62996 states and 108474 transitions. [2023-11-29 06:40:22,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:40:22,916 INFO L276 IsEmpty]: Start isEmpty. Operand 62996 states and 108474 transitions. [2023-11-29 06:40:22,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-29 06:40:22,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:40:22,952 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:40:22,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 06:40:22,952 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:40:22,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:22,952 INFO L85 PathProgramCache]: Analyzing trace with hash -831139258, now seen corresponding path program 1 times [2023-11-29 06:40:22,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:22,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370282725] [2023-11-29 06:40:22,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:22,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:23,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:40:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:23,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:40:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:23,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:40:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:23,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:40:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:23,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:40:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:23,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:40:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:23,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 06:40:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:23,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 06:40:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:23,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-29 06:40:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:23,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 06:40:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:23,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-29 06:40:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:23,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 06:40:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:23,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-29 06:40:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:23,095 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 06:40:23,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:40:23,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370282725] [2023-11-29 06:40:23,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370282725] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:40:23,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:40:23,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:40:23,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189567173] [2023-11-29 06:40:23,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:40:23,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:40:23,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:40:23,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:40:23,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:40:23,098 INFO L87 Difference]: Start difference. First operand 62996 states and 108474 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:40:28,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:40:28,789 INFO L93 Difference]: Finished difference Result 118147 states and 207197 transitions. [2023-11-29 06:40:28,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:40:28,790 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2023-11-29 06:40:28,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:40:29,240 INFO L225 Difference]: With dead ends: 118147 [2023-11-29 06:40:29,240 INFO L226 Difference]: Without dead ends: 118027 [2023-11-29 06:40:29,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:40:29,278 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 1066 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 445 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:40:29,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 908 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [445 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 06:40:29,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118027 states. [2023-11-29 06:40:34,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118027 to 117882. [2023-11-29 06:40:35,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117882 states, 99258 states have (on average 1.6423562836244938) internal successors, (163017), 99264 states have internal predecessors, (163017), 18599 states have call successors, (18599), 20 states have call predecessors, (18599), 24 states have return successors, (20790), 18597 states have call predecessors, (20790), 18598 states have call successors, (20790) [2023-11-29 06:40:35,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117882 states to 117882 states and 202406 transitions. [2023-11-29 06:40:35,694 INFO L78 Accepts]: Start accepts. Automaton has 117882 states and 202406 transitions. Word has length 125 [2023-11-29 06:40:35,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:40:35,694 INFO L495 AbstractCegarLoop]: Abstraction has 117882 states and 202406 transitions. [2023-11-29 06:40:35,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:40:35,694 INFO L276 IsEmpty]: Start isEmpty. Operand 117882 states and 202406 transitions. [2023-11-29 06:40:35,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-29 06:40:35,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:40:35,736 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:40:35,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 06:40:35,736 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:40:35,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:35,737 INFO L85 PathProgramCache]: Analyzing trace with hash 2053621022, now seen corresponding path program 1 times [2023-11-29 06:40:35,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:35,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127045654] [2023-11-29 06:40:35,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:35,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:36,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:40:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:36,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:40:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:36,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:40:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:36,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:40:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:36,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:40:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:36,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:40:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:36,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 06:40:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:36,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 06:40:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:36,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 06:40:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:36,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 06:40:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:36,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 06:40:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:36,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-29 06:40:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:36,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-29 06:40:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:36,583 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 06:40:36,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:40:36,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127045654] [2023-11-29 06:40:36,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127045654] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:40:36,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082952961] [2023-11-29 06:40:36,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:36,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:40:36,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:40:36,586 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:40:36,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 06:40:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:36,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 1071 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 06:40:36,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:40:37,349 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 06:40:37,349 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:40:37,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082952961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:40:37,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:40:37,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [18] total 27 [2023-11-29 06:40:37,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138069683] [2023-11-29 06:40:37,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:40:37,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:40:37,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:40:37,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:40:37,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=639, Unknown=0, NotChecked=0, Total=702 [2023-11-29 06:40:37,353 INFO L87 Difference]: Start difference. First operand 117882 states and 202406 transitions. Second operand has 11 states, 10 states have (on average 9.1) internal successors, (91), 9 states have internal predecessors, (91), 5 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:40:41,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:40:41,600 INFO L93 Difference]: Finished difference Result 118140 states and 202780 transitions. [2023-11-29 06:40:41,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:40:41,601 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.1) internal successors, (91), 9 states have internal predecessors, (91), 5 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 126 [2023-11-29 06:40:41,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:40:42,052 INFO L225 Difference]: With dead ends: 118140 [2023-11-29 06:40:42,052 INFO L226 Difference]: Without dead ends: 118025 [2023-11-29 06:40:42,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=169, Invalid=1313, Unknown=0, NotChecked=0, Total=1482 [2023-11-29 06:40:42,091 INFO L413 NwaCegarLoop]: 499 mSDtfsCounter, 636 mSDsluCounter, 3820 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 4319 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:40:42,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 4319 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:40:42,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118025 states. [2023-11-29 06:40:48,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118025 to 118011. [2023-11-29 06:40:48,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118011 states, 99351 states have (on average 1.6421877988143048) internal successors, (163153), 99358 states have internal predecessors, (163153), 18621 states have call successors, (18621), 32 states have call predecessors, (18621), 38 states have return successors, (20824), 18620 states have call predecessors, (20824), 18619 states have call successors, (20824) [2023-11-29 06:40:48,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118011 states to 118011 states and 202598 transitions. [2023-11-29 06:40:48,649 INFO L78 Accepts]: Start accepts. Automaton has 118011 states and 202598 transitions. Word has length 126 [2023-11-29 06:40:48,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:40:48,649 INFO L495 AbstractCegarLoop]: Abstraction has 118011 states and 202598 transitions. [2023-11-29 06:40:48,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.1) internal successors, (91), 9 states have internal predecessors, (91), 5 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:40:48,649 INFO L276 IsEmpty]: Start isEmpty. Operand 118011 states and 202598 transitions. [2023-11-29 06:40:48,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 06:40:48,693 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:40:48,694 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:40:48,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 06:40:48,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:40:48,895 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:40:48,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:40:48,895 INFO L85 PathProgramCache]: Analyzing trace with hash 2075746426, now seen corresponding path program 1 times [2023-11-29 06:40:48,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:40:48,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848455811] [2023-11-29 06:40:48,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:40:48,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:40:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:49,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:40:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:49,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:40:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:49,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:40:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:49,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:40:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:49,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:40:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:49,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:40:49,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:49,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 06:40:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:49,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 06:40:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:49,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 06:40:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:49,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 06:40:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:49,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 06:40:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:49,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 06:40:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:49,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 06:40:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:40:49,664 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 06:40:49,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:40:49,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848455811] [2023-11-29 06:40:49,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848455811] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:40:49,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:40:49,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-11-29 06:40:49,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230353252] [2023-11-29 06:40:49,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:40:49,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 06:40:49,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:40:49,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 06:40:49,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:40:49,668 INFO L87 Difference]: Start difference. First operand 118011 states and 202598 transitions. Second operand has 15 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 9 states have internal predecessors, (82), 7 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 06:40:58,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:40:58,233 INFO L93 Difference]: Finished difference Result 118860 states and 207373 transitions. [2023-11-29 06:40:58,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 06:40:58,234 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 9 states have internal predecessors, (82), 7 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 127 [2023-11-29 06:40:58,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:40:58,701 INFO L225 Difference]: With dead ends: 118860 [2023-11-29 06:40:58,701 INFO L226 Difference]: Without dead ends: 118614 [2023-11-29 06:40:58,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=346, Invalid=1634, Unknown=0, NotChecked=0, Total=1980 [2023-11-29 06:40:58,741 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 1561 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 4996 mSolverCounterSat, 673 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 2231 SdHoareTripleChecker+Invalid, 5669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 673 IncrementalHoareTripleChecker+Valid, 4996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:40:58,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1561 Valid, 2231 Invalid, 5669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [673 Valid, 4996 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-29 06:40:58,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118614 states. [2023-11-29 06:41:05,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118614 to 118194. [2023-11-29 06:41:05,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118194 states, 99469 states have (on average 1.6418582673998934) internal successors, (163314), 99480 states have internal predecessors, (163314), 18679 states have call successors, (18679), 36 states have call predecessors, (18679), 45 states have return successors, (20916), 18677 states have call predecessors, (20916), 18673 states have call successors, (20916) [2023-11-29 06:41:05,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118194 states to 118194 states and 202909 transitions. [2023-11-29 06:41:05,610 INFO L78 Accepts]: Start accepts. Automaton has 118194 states and 202909 transitions. Word has length 127 [2023-11-29 06:41:05,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:05,611 INFO L495 AbstractCegarLoop]: Abstraction has 118194 states and 202909 transitions. [2023-11-29 06:41:05,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 9 states have internal predecessors, (82), 7 states have call successors, (16), 7 states have call predecessors, (16), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 06:41:05,611 INFO L276 IsEmpty]: Start isEmpty. Operand 118194 states and 202909 transitions. [2023-11-29 06:41:05,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 06:41:05,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:05,657 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:41:05,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 06:41:05,658 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:05,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:05,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1788577985, now seen corresponding path program 1 times [2023-11-29 06:41:05,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:05,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192287964] [2023-11-29 06:41:05,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:05,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:06,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:41:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:06,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:41:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:06,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:41:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:06,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:41:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:06,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:41:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:06,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:41:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:06,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 06:41:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:06,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 06:41:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:06,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 06:41:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:06,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 06:41:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:06,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 06:41:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:06,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 06:41:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:06,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 06:41:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:06,575 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 06:41:06,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:06,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192287964] [2023-11-29 06:41:06,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192287964] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:41:06,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422828370] [2023-11-29 06:41:06,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:06,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:41:06,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:41:06,577 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:41:06,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 06:41:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:06,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 06:41:06,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:07,202 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 06:41:07,203 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:41:07,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422828370] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:07,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:41:07,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [19] total 29 [2023-11-29 06:41:07,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660507130] [2023-11-29 06:41:07,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:07,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:41:07,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:07,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:41:07,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=744, Unknown=0, NotChecked=0, Total=812 [2023-11-29 06:41:07,205 INFO L87 Difference]: Start difference. First operand 118194 states and 202909 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 10 states have internal predecessors, (92), 5 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:41:11,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:11,598 INFO L93 Difference]: Finished difference Result 118674 states and 203657 transitions. [2023-11-29 06:41:11,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 06:41:11,599 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 10 states have internal predecessors, (92), 5 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 127 [2023-11-29 06:41:11,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:12,067 INFO L225 Difference]: With dead ends: 118674 [2023-11-29 06:41:12,067 INFO L226 Difference]: Without dead ends: 118290 [2023-11-29 06:41:12,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=218, Invalid=1762, Unknown=0, NotChecked=0, Total=1980 [2023-11-29 06:41:12,112 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 719 mSDsluCounter, 3894 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 4378 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:12,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 4378 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:41:12,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118290 states. [2023-11-29 06:41:18,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118290 to 118213. [2023-11-29 06:41:18,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118213 states, 99483 states have (on average 1.6417880441884543) internal successors, (163330), 99492 states have internal predecessors, (163330), 18684 states have call successors, (18684), 36 states have call predecessors, (18684), 45 states have return successors, (20922), 18684 states have call predecessors, (20922), 18678 states have call successors, (20922) [2023-11-29 06:41:18,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118213 states to 118213 states and 202936 transitions. [2023-11-29 06:41:18,940 INFO L78 Accepts]: Start accepts. Automaton has 118213 states and 202936 transitions. Word has length 127 [2023-11-29 06:41:18,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:18,940 INFO L495 AbstractCegarLoop]: Abstraction has 118213 states and 202936 transitions. [2023-11-29 06:41:18,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 10 states have internal predecessors, (92), 5 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:41:18,941 INFO L276 IsEmpty]: Start isEmpty. Operand 118213 states and 202936 transitions. [2023-11-29 06:41:18,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-29 06:41:18,986 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:18,986 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:41:18,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 06:41:19,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 06:41:19,187 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:19,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:19,188 INFO L85 PathProgramCache]: Analyzing trace with hash 2046736001, now seen corresponding path program 1 times [2023-11-29 06:41:19,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:19,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877830923] [2023-11-29 06:41:19,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:19,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:19,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:41:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:19,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:41:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:19,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:41:19,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:19,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:41:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:19,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:41:19,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:19,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:41:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:19,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 06:41:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:19,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 06:41:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:19,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 06:41:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:19,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 06:41:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:19,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 06:41:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:19,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 06:41:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:19,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-29 06:41:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:19,384 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-29 06:41:19,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:19,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877830923] [2023-11-29 06:41:19,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877830923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:19,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:41:19,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 06:41:19,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474694388] [2023-11-29 06:41:19,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:19,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:41:19,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:19,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:41:19,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:41:19,386 INFO L87 Difference]: Start difference. First operand 118213 states and 202936 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:41:30,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:30,921 INFO L93 Difference]: Finished difference Result 231754 states and 404717 transitions. [2023-11-29 06:41:30,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-29 06:41:30,922 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2023-11-29 06:41:30,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:31,776 INFO L225 Difference]: With dead ends: 231754 [2023-11-29 06:41:31,776 INFO L226 Difference]: Without dead ends: 231345 [2023-11-29 06:41:31,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=468, Invalid=1424, Unknown=0, NotChecked=0, Total=1892 [2023-11-29 06:41:31,842 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 2386 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 2256 mSolverCounterSat, 813 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2404 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 3069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 813 IncrementalHoareTripleChecker+Valid, 2256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:31,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2404 Valid, 1251 Invalid, 3069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [813 Valid, 2256 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 06:41:31,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231345 states. [2023-11-29 06:41:40,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231345 to 230331. [2023-11-29 06:41:41,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230331 states, 193886 states have (on average 1.6434915362635776) internal successors, (318650), 193901 states have internal predecessors, (318650), 36360 states have call successors, (36360), 69 states have call predecessors, (36360), 84 states have return successors, (38648), 36360 states have call predecessors, (38648), 36348 states have call successors, (38648) [2023-11-29 06:41:42,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230331 states to 230331 states and 393658 transitions. [2023-11-29 06:41:42,218 INFO L78 Accepts]: Start accepts. Automaton has 230331 states and 393658 transitions. Word has length 128 [2023-11-29 06:41:42,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:41:42,218 INFO L495 AbstractCegarLoop]: Abstraction has 230331 states and 393658 transitions. [2023-11-29 06:41:42,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:41:42,219 INFO L276 IsEmpty]: Start isEmpty. Operand 230331 states and 393658 transitions. [2023-11-29 06:41:42,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-29 06:41:42,262 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:41:42,262 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:41:42,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 06:41:42,263 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:41:42,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:41:42,263 INFO L85 PathProgramCache]: Analyzing trace with hash 407524358, now seen corresponding path program 1 times [2023-11-29 06:41:42,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:41:42,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981123620] [2023-11-29 06:41:42,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:42,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:41:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:42,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:41:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:42,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:41:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:42,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:41:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:42,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:41:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:42,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:41:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:42,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:41:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:42,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 06:41:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:42,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 06:41:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:42,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 06:41:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:42,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 06:41:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:42,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 06:41:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:42,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-29 06:41:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:42,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-29 06:41:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:42,592 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-29 06:41:42,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:41:42,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981123620] [2023-11-29 06:41:42,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981123620] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:41:42,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997302224] [2023-11-29 06:41:42,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:41:42,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:41:42,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:41:42,594 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:41:42,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 06:41:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:41:42,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 06:41:42,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:41:43,603 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 06:41:43,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:41:43,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997302224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:41:43,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:41:43,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [16] total 26 [2023-11-29 06:41:43,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493630819] [2023-11-29 06:41:43,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:41:43,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:41:43,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:41:43,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:41:43,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2023-11-29 06:41:43,607 INFO L87 Difference]: Start difference. First operand 230331 states and 393658 transitions. Second operand has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 10 states have internal predecessors, (94), 5 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:41:52,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:41:52,088 INFO L93 Difference]: Finished difference Result 231902 states and 396131 transitions. [2023-11-29 06:41:52,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:41:52,089 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 10 states have internal predecessors, (94), 5 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 129 [2023-11-29 06:41:52,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:41:53,196 INFO L225 Difference]: With dead ends: 231902 [2023-11-29 06:41:53,196 INFO L226 Difference]: Without dead ends: 231062 [2023-11-29 06:41:53,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=153, Invalid=1487, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 06:41:53,287 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 915 mSDsluCounter, 3855 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 4353 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:41:53,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 4353 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:41:53,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231062 states. [2023-11-29 06:42:03,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231062 to 230688. [2023-11-29 06:42:03,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230688 states, 194151 states have (on average 1.6432209980891161) internal successors, (319033), 194164 states have internal predecessors, (319033), 36428 states have call successors, (36428), 91 states have call predecessors, (36428), 108 states have return successors, (38728), 36432 states have call predecessors, (38728), 36410 states have call successors, (38728) [2023-11-29 06:42:04,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230688 states to 230688 states and 394189 transitions. [2023-11-29 06:42:04,441 INFO L78 Accepts]: Start accepts. Automaton has 230688 states and 394189 transitions. Word has length 129 [2023-11-29 06:42:04,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:04,442 INFO L495 AbstractCegarLoop]: Abstraction has 230688 states and 394189 transitions. [2023-11-29 06:42:04,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 10 states have internal predecessors, (94), 5 states have call successors, (16), 5 states have call predecessors, (16), 6 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:42:04,442 INFO L276 IsEmpty]: Start isEmpty. Operand 230688 states and 394189 transitions. [2023-11-29 06:42:04,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 06:42:04,495 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:04,496 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:42:04,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 06:42:04,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:04,696 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:42:04,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:04,697 INFO L85 PathProgramCache]: Analyzing trace with hash -405108977, now seen corresponding path program 1 times [2023-11-29 06:42:04,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:04,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417329885] [2023-11-29 06:42:04,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:04,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:04,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:42:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:04,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:42:04,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:04,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:42:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:04,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:42:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:04,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:42:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:04,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:42:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:04,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 06:42:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:04,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 06:42:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:04,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 06:42:04,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:04,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 06:42:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:04,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 06:42:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:04,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 06:42:04,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:04,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 06:42:04,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:04,881 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-29 06:42:04,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:42:04,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417329885] [2023-11-29 06:42:04,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417329885] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:42:04,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234924285] [2023-11-29 06:42:04,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:04,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:04,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:42:04,883 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:42:04,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 06:42:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:05,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:42:05,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:42:05,276 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-29 06:42:05,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:42:05,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234924285] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:42:05,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:42:05,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-29 06:42:05,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456190132] [2023-11-29 06:42:05,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:42:05,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:42:05,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:42:05,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:42:05,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:42:05,278 INFO L87 Difference]: Start difference. First operand 230688 states and 394189 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 06:42:14,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:14,136 INFO L93 Difference]: Finished difference Result 231564 states and 395569 transitions. [2023-11-29 06:42:14,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:42:14,137 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 127 [2023-11-29 06:42:14,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:15,012 INFO L225 Difference]: With dead ends: 231564 [2023-11-29 06:42:15,012 INFO L226 Difference]: Without dead ends: 230696 [2023-11-29 06:42:15,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:42:15,069 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 4 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1811 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:15,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1811 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:42:15,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230696 states. [2023-11-29 06:42:26,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230696 to 230692. [2023-11-29 06:42:26,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230692 states, 194153 states have (on average 1.6432143721704018) internal successors, (319035), 194168 states have internal predecessors, (319035), 36428 states have call successors, (36428), 91 states have call predecessors, (36428), 110 states have return successors, (38746), 36432 states have call predecessors, (38746), 36410 states have call successors, (38746) [2023-11-29 06:42:28,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230692 states to 230692 states and 394209 transitions. [2023-11-29 06:42:28,308 INFO L78 Accepts]: Start accepts. Automaton has 230692 states and 394209 transitions. Word has length 127 [2023-11-29 06:42:28,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:28,308 INFO L495 AbstractCegarLoop]: Abstraction has 230692 states and 394209 transitions. [2023-11-29 06:42:28,308 INFO L496 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, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 06:42:28,309 INFO L276 IsEmpty]: Start isEmpty. Operand 230692 states and 394209 transitions. [2023-11-29 06:42:28,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 06:42:28,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:28,372 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:42:28,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 06:42:28,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:28,573 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:42:28,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:28,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1534053069, now seen corresponding path program 1 times [2023-11-29 06:42:28,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:28,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500760547] [2023-11-29 06:42:28,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:28,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:28,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:42:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:28,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:42:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:28,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:42:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:28,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:42:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:28,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:42:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:28,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:42:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:28,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 06:42:28,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:28,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 06:42:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:28,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 06:42:28,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:28,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 06:42:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:28,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 06:42:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:28,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 06:42:28,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:28,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 06:42:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:28,785 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-29 06:42:28,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:42:28,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500760547] [2023-11-29 06:42:28,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500760547] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:42:28,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264499970] [2023-11-29 06:42:28,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:28,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:28,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:42:28,789 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:42:28,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 06:42:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:29,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 06:42:29,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:42:29,395 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-29 06:42:29,395 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:42:29,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264499970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:42:29,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:42:29,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2023-11-29 06:42:29,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984809424] [2023-11-29 06:42:29,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:42:29,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:42:29,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:42:29,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:42:29,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:42:29,398 INFO L87 Difference]: Start difference. First operand 230692 states and 394209 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:42:39,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:42:39,335 INFO L93 Difference]: Finished difference Result 231666 states and 395742 transitions. [2023-11-29 06:42:39,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:42:39,335 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2023-11-29 06:42:39,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:42:40,178 INFO L225 Difference]: With dead ends: 231666 [2023-11-29 06:42:40,178 INFO L226 Difference]: Without dead ends: 230822 [2023-11-29 06:42:40,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:42:40,255 INFO L413 NwaCegarLoop]: 339 mSDtfsCounter, 570 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:42:40,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 1443 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:42:40,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230822 states. [2023-11-29 06:42:51,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230822 to 230688. [2023-11-29 06:42:52,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230688 states, 194151 states have (on average 1.643159190526961) internal successors, (319021), 194164 states have internal predecessors, (319021), 36428 states have call successors, (36428), 91 states have call predecessors, (36428), 108 states have return successors, (38728), 36432 states have call predecessors, (38728), 36410 states have call successors, (38728) [2023-11-29 06:42:53,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230688 states to 230688 states and 394177 transitions. [2023-11-29 06:42:53,621 INFO L78 Accepts]: Start accepts. Automaton has 230688 states and 394177 transitions. Word has length 127 [2023-11-29 06:42:53,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:42:53,622 INFO L495 AbstractCegarLoop]: Abstraction has 230688 states and 394177 transitions. [2023-11-29 06:42:53,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:42:53,622 INFO L276 IsEmpty]: Start isEmpty. Operand 230688 states and 394177 transitions. [2023-11-29 06:42:53,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-29 06:42:53,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:42:53,700 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:42:53,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 06:42:53,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:53,901 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 06:42:53,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:42:53,902 INFO L85 PathProgramCache]: Analyzing trace with hash -542753868, now seen corresponding path program 1 times [2023-11-29 06:42:53,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:42:53,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781514655] [2023-11-29 06:42:53,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:53,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:42:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:53,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 06:42:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:54,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 06:42:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:54,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 06:42:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:54,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 06:42:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:54,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 06:42:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:54,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 06:42:54,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:54,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 06:42:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:54,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 06:42:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:54,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 06:42:54,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:54,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 06:42:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:54,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 06:42:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:54,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-29 06:42:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:54,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-29 06:42:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:54,072 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-29 06:42:54,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:42:54,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781514655] [2023-11-29 06:42:54,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781514655] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:42:54,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128188166] [2023-11-29 06:42:54,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:42:54,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:42:54,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:42:54,075 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:42:54,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82321a42-5c09-4cf2-a34d-eaa38cd4a371/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 06:42:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:42:54,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:42:54,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:42:54,368 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-29 06:42:54,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:42:54,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128188166] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:42:54,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:42:54,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2023-11-29 06:42:54,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723717596] [2023-11-29 06:42:54,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:42:54,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:42:54,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:42:54,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:42:54,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:42:54,370 INFO L87 Difference]: Start difference. First operand 230688 states and 394177 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-29 06:43:03,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:43:03,595 INFO L93 Difference]: Finished difference Result 232370 states and 396798 transitions. [2023-11-29 06:43:03,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:43:03,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2023-11-29 06:43:03,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:43:04,417 INFO L225 Difference]: With dead ends: 232370 [2023-11-29 06:43:04,417 INFO L226 Difference]: Without dead ends: 231173 [2023-11-29 06:43:04,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:43:04,500 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 33 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:43:04,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 1486 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:43:04,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231173 states. [2023-11-29 06:43:17,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231173 to 230820. [2023-11-29 06:43:17,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230820 states, 194251 states have (on average 1.6429413490792841) internal successors, (319143), 194266 states have internal predecessors, (319143), 36458 states have call successors, (36458), 91 states have call predecessors, (36458), 110 states have return successors, (38779), 36462 states have call predecessors, (38779), 36440 states have call successors, (38779)