./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl --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 5711b4c0ea669ac051f0ad97dbc3a1a473a1622b7d95c937325001ba5ca1073b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:24:58,128 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:24:58,227 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:24:58,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:24:58,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:24:58,273 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:24:58,275 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:24:58,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:24:58,277 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:24:58,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:24:58,285 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:24:58,285 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:24:58,285 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:24:58,288 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:24:58,288 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:24:58,288 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:24:58,289 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:24:58,289 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:24:58,290 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:24:58,290 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:24:58,291 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:24:58,291 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:24:58,292 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:24:58,292 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:24:58,293 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:24:58,294 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:24:58,294 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:24:58,295 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:24:58,295 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:24:58,296 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:24:58,297 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:24:58,298 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:24:58,298 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:24:58,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:24:58,298 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:24:58,299 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:24:58,299 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:24:58,299 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:24:58,299 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:24:58,299 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_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5711b4c0ea669ac051f0ad97dbc3a1a473a1622b7d95c937325001ba5ca1073b [2023-11-12 02:24:58,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:24:58,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:24:58,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:24:58,620 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:24:58,620 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:24:58,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/product-lines/email_spec4_product32.cil.c [2023-11-12 02:25:02,169 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:25:02,513 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:25:02,514 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/sv-benchmarks/c/product-lines/email_spec4_product32.cil.c [2023-11-12 02:25:02,541 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/data/a88ee9ecb/5298b969a575468e9f898ead2c5a8c82/FLAG188d0448e [2023-11-12 02:25:02,555 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/data/a88ee9ecb/5298b969a575468e9f898ead2c5a8c82 [2023-11-12 02:25:02,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:25:02,560 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:25:02,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:25:02,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:25:02,570 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:25:02,571 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:25:02" (1/1) ... [2023-11-12 02:25:02,575 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cafc217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:02, skipping insertion in model container [2023-11-12 02:25:02,575 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:25:02" (1/1) ... [2023-11-12 02:25:02,683 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:25:03,099 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_9cf7f70b-4096-47e1-8efb-4a908be48c1c/sv-benchmarks/c/product-lines/email_spec4_product32.cil.c[32699,32712] [2023-11-12 02:25:03,315 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:25:03,333 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:25:03,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-11-12 02:25:03,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [97] [2023-11-12 02:25:03,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1177] [2023-11-12 02:25:03,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1484] [2023-11-12 02:25:03,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1493] [2023-11-12 02:25:03,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1641] [2023-11-12 02:25:03,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2046] [2023-11-12 02:25:03,350 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2073] [2023-11-12 02:25:03,350 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2090] [2023-11-12 02:25:03,350 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2456] [2023-11-12 02:25:03,350 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2675] [2023-11-12 02:25:03,437 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_9cf7f70b-4096-47e1-8efb-4a908be48c1c/sv-benchmarks/c/product-lines/email_spec4_product32.cil.c[32699,32712] [2023-11-12 02:25:03,546 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:25:03,580 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:25:03,589 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:25:03,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:03 WrapperNode [2023-11-12 02:25:03,590 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:25:03,591 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:25:03,593 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:25:03,594 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:25:03,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:03" (1/1) ... [2023-11-12 02:25:03,660 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:03" (1/1) ... [2023-11-12 02:25:03,772 INFO L138 Inliner]: procedures = 134, calls = 237, calls flagged for inlining = 61, calls inlined = 53, statements flattened = 997 [2023-11-12 02:25:03,772 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:25:03,773 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:25:03,773 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:25:03,774 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:25:03,785 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:03" (1/1) ... [2023-11-12 02:25:03,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:03" (1/1) ... [2023-11-12 02:25:03,792 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:03" (1/1) ... [2023-11-12 02:25:03,793 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:03" (1/1) ... [2023-11-12 02:25:03,829 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:03" (1/1) ... [2023-11-12 02:25:03,855 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:03" (1/1) ... [2023-11-12 02:25:03,879 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:03" (1/1) ... [2023-11-12 02:25:03,886 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:03" (1/1) ... [2023-11-12 02:25:03,911 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:25:03,925 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:25:03,926 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:25:03,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:25:03,927 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:03" (1/1) ... [2023-11-12 02:25:03,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:25:03,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:25:03,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:25:04,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:25:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-12 02:25:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-12 02:25:04,052 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-12 02:25:04,052 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-12 02:25:04,054 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-12 02:25:04,054 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-12 02:25:04,055 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-12 02:25:04,055 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-12 02:25:04,055 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-12 02:25:04,055 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-12 02:25:04,056 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-12 02:25:04,056 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-12 02:25:04,057 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-11-12 02:25:04,057 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-11-12 02:25:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-12 02:25:04,058 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-12 02:25:04,058 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-12 02:25:04,058 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-12 02:25:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-12 02:25:04,060 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-12 02:25:04,060 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-12 02:25:04,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-12 02:25:04,063 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-12 02:25:04,063 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-12 02:25:04,064 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-12 02:25:04,064 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-12 02:25:04,064 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-12 02:25:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-12 02:25:04,065 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-12 02:25:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-12 02:25:04,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-12 02:25:04,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:25:04,066 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-12 02:25:04,066 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-12 02:25:04,066 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-12 02:25:04,066 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-12 02:25:04,067 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-12 02:25:04,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-12 02:25:04,067 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-12 02:25:04,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-12 02:25:04,068 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-12 02:25:04,068 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-12 02:25:04,068 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-12 02:25:04,068 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-12 02:25:04,069 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-12 02:25:04,069 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-12 02:25:04,069 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-12 02:25:04,069 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-12 02:25:04,070 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-12 02:25:04,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-12 02:25:04,070 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-12 02:25:04,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-12 02:25:04,071 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-12 02:25:04,071 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-12 02:25:04,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:25:04,073 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-12 02:25:04,073 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-12 02:25:04,074 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-12 02:25:04,074 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-12 02:25:04,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:25:04,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:25:04,419 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:25:04,427 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:25:05,720 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:25:05,743 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:25:05,743 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:25:05,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:25:05 BoogieIcfgContainer [2023-11-12 02:25:05,748 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:25:05,752 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:25:05,752 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:25:05,756 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:25:05,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:25:02" (1/3) ... [2023-11-12 02:25:05,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24efff86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:25:05, skipping insertion in model container [2023-11-12 02:25:05,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:03" (2/3) ... [2023-11-12 02:25:05,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24efff86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:25:05, skipping insertion in model container [2023-11-12 02:25:05,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:25:05" (3/3) ... [2023-11-12 02:25:05,762 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product32.cil.c [2023-11-12 02:25:05,787 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:25:05,787 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:25:05,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:25:05,901 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;@6de0a6f1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:25:05,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:25:05,910 INFO L276 IsEmpty]: Start isEmpty. Operand has 425 states, 330 states have (on average 1.5515151515151515) internal successors, (512), 335 states have internal predecessors, (512), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2023-11-12 02:25:05,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-12 02:25:05,941 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:05,942 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:05,943 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:05,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:05,950 INFO L85 PathProgramCache]: Analyzing trace with hash -302497054, now seen corresponding path program 1 times [2023-11-12 02:25:05,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:05,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311838932] [2023-11-12 02:25:05,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:05,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:06,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:25:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:06,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:25:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:06,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:25:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:07,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:25:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:07,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-12 02:25:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:07,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-12 02:25:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:07,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:25:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:07,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-12 02:25:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:07,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-12 02:25:07,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:07,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-12 02:25:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:07,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-12 02:25:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:07,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-12 02:25:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:07,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-12 02:25:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:07,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-12 02:25:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:07,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-12 02:25:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:07,194 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-12 02:25:07,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:07,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311838932] [2023-11-12 02:25:07,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311838932] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:25:07,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453626597] [2023-11-12 02:25:07,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:07,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:25:07,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:25:07,203 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:25:07,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:25:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:07,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:25:07,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:25:07,795 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-12 02:25:07,804 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:25:07,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453626597] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:07,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:25:07,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-11-12 02:25:07,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181659072] [2023-11-12 02:25:07,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:07,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:25:07,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:07,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:25:07,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:25:07,876 INFO L87 Difference]: Start difference. First operand has 425 states, 330 states have (on average 1.5515151515151515) internal successors, (512), 335 states have internal predecessors, (512), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:25:08,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:08,017 INFO L93 Difference]: Finished difference Result 657 states and 974 transitions. [2023-11-12 02:25:08,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:25:08,020 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 116 [2023-11-12 02:25:08,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:08,042 INFO L225 Difference]: With dead ends: 657 [2023-11-12 02:25:08,042 INFO L226 Difference]: Without dead ends: 418 [2023-11-12 02:25:08,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:25:08,057 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:08,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:25:08,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2023-11-12 02:25:08,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2023-11-12 02:25:08,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 324 states have (on average 1.5462962962962963) internal successors, (501), 328 states have internal predecessors, (501), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-12 02:25:08,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 630 transitions. [2023-11-12 02:25:08,164 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 630 transitions. Word has length 116 [2023-11-12 02:25:08,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:08,166 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 630 transitions. [2023-11-12 02:25:08,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:25:08,167 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 630 transitions. [2023-11-12 02:25:08,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-12 02:25:08,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:08,177 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:08,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:25:08,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 02:25:08,386 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:08,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:08,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1597426393, now seen corresponding path program 1 times [2023-11-12 02:25:08,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:08,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519631608] [2023-11-12 02:25:08,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:08,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:08,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:25:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:08,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:25:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:08,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:25:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:08,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:25:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:08,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-12 02:25:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:08,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-12 02:25:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:08,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-12 02:25:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:08,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-12 02:25:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:08,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-12 02:25:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:08,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-12 02:25:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:08,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-12 02:25:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:08,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-12 02:25:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:08,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-12 02:25:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:08,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-12 02:25:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:08,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-12 02:25:08,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:08,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-12 02:25:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:08,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-12 02:25:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:08,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-12 02:25:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:08,910 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-12 02:25:08,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:08,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519631608] [2023-11-12 02:25:08,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519631608] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:25:08,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448418431] [2023-11-12 02:25:08,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:08,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:25:08,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:25:08,914 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:25:08,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:25:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:09,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 1230 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:25:09,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:25:09,419 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-12 02:25:09,421 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:25:09,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448418431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:09,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:25:09,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-12 02:25:09,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144420600] [2023-11-12 02:25:09,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:09,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:25:09,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:09,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:25:09,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:25:09,430 INFO L87 Difference]: Start difference. First operand 418 states and 630 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-12 02:25:09,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:09,506 INFO L93 Difference]: Finished difference Result 647 states and 952 transitions. [2023-11-12 02:25:09,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:25:09,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 136 [2023-11-12 02:25:09,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:09,515 INFO L225 Difference]: With dead ends: 647 [2023-11-12 02:25:09,515 INFO L226 Difference]: Without dead ends: 421 [2023-11-12 02:25:09,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:25:09,522 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 1 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:09,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1254 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:25:09,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2023-11-12 02:25:09,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 420. [2023-11-12 02:25:09,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 326 states have (on average 1.5429447852760736) internal successors, (503), 330 states have internal predecessors, (503), 65 states have call successors, (65), 28 states have call predecessors, (65), 28 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2023-11-12 02:25:09,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 632 transitions. [2023-11-12 02:25:09,570 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 632 transitions. Word has length 136 [2023-11-12 02:25:09,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:09,571 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 632 transitions. [2023-11-12 02:25:09,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-12 02:25:09,572 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 632 transitions. [2023-11-12 02:25:09,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-12 02:25:09,576 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:09,576 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:09,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:25:09,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-12 02:25:09,785 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:09,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:09,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1143586185, now seen corresponding path program 1 times [2023-11-12 02:25:09,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:09,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601498502] [2023-11-12 02:25:09,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:09,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:09,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:10,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:25:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:10,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:25:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:10,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:25:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:10,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:25:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:10,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-12 02:25:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:10,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-12 02:25:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:10,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-12 02:25:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:10,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-12 02:25:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:10,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-12 02:25:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:10,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-12 02:25:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:10,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-12 02:25:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:10,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-12 02:25:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:10,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-12 02:25:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:10,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-12 02:25:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:10,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-12 02:25:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:10,228 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-12 02:25:10,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:10,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601498502] [2023-11-12 02:25:10,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601498502] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:25:10,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91414244] [2023-11-12 02:25:10,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:10,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:25:10,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:25:10,234 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:25:10,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:25:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:10,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:25:10,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:25:10,717 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-12 02:25:10,717 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:25:10,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91414244] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:10,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:25:10,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-12 02:25:10,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059078963] [2023-11-12 02:25:10,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:10,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:25:10,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:10,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:25:10,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:25:10,724 INFO L87 Difference]: Start difference. First operand 420 states and 632 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:25:10,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:10,809 INFO L93 Difference]: Finished difference Result 888 states and 1356 transitions. [2023-11-12 02:25:10,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:25:10,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 126 [2023-11-12 02:25:10,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:10,820 INFO L225 Difference]: With dead ends: 888 [2023-11-12 02:25:10,820 INFO L226 Difference]: Without dead ends: 495 [2023-11-12 02:25:10,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:25:10,828 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 134 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:10,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1220 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:25:10,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2023-11-12 02:25:10,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 487. [2023-11-12 02:25:10,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 379 states have (on average 1.562005277044855) internal successors, (592), 383 states have internal predecessors, (592), 79 states have call successors, (79), 28 states have call predecessors, (79), 28 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-12 02:25:10,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 749 transitions. [2023-11-12 02:25:10,897 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 749 transitions. Word has length 126 [2023-11-12 02:25:10,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:10,898 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 749 transitions. [2023-11-12 02:25:10,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:25:10,899 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 749 transitions. [2023-11-12 02:25:10,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-12 02:25:10,906 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:10,906 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:10,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:25:11,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:25:11,116 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:11,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:11,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1449405, now seen corresponding path program 1 times [2023-11-12 02:25:11,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:11,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832746387] [2023-11-12 02:25:11,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:11,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:11,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:25:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:11,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:25:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:11,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:25:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:11,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:25:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:11,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-12 02:25:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:11,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-12 02:25:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:11,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-12 02:25:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:11,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-12 02:25:11,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:11,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-12 02:25:11,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:11,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-12 02:25:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:11,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-12 02:25:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:11,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-12 02:25:11,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:11,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-12 02:25:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:11,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-12 02:25:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:11,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-12 02:25:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:11,495 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-12 02:25:11,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:11,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832746387] [2023-11-12 02:25:11,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832746387] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:25:11,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10999309] [2023-11-12 02:25:11,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:11,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:25:11,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:25:11,498 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:25:11,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:25:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:11,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 1179 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:25:11,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:25:12,044 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-12 02:25:12,047 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:25:12,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10999309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:12,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:25:12,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-12 02:25:12,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477831105] [2023-11-12 02:25:12,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:12,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:25:12,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:12,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:25:12,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:25:12,051 INFO L87 Difference]: Start difference. First operand 487 states and 749 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-12 02:25:12,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:12,173 INFO L93 Difference]: Finished difference Result 965 states and 1488 transitions. [2023-11-12 02:25:12,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:25:12,174 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 127 [2023-11-12 02:25:12,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:12,181 INFO L225 Difference]: With dead ends: 965 [2023-11-12 02:25:12,181 INFO L226 Difference]: Without dead ends: 489 [2023-11-12 02:25:12,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:25:12,189 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 8 mSDsluCounter, 1852 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2473 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:12,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2473 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:25:12,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-11-12 02:25:12,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2023-11-12 02:25:12,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 380 states have (on average 1.5605263157894738) internal successors, (593), 385 states have internal predecessors, (593), 79 states have call successors, (79), 28 states have call predecessors, (79), 29 states have return successors, (80), 77 states have call predecessors, (80), 78 states have call successors, (80) [2023-11-12 02:25:12,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 752 transitions. [2023-11-12 02:25:12,251 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 752 transitions. Word has length 127 [2023-11-12 02:25:12,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:12,251 INFO L495 AbstractCegarLoop]: Abstraction has 489 states and 752 transitions. [2023-11-12 02:25:12,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-12 02:25:12,252 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 752 transitions. [2023-11-12 02:25:12,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-12 02:25:12,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:12,258 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:12,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:25:12,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:25:12,467 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:12,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:12,468 INFO L85 PathProgramCache]: Analyzing trace with hash -76625628, now seen corresponding path program 1 times [2023-11-12 02:25:12,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:12,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178969295] [2023-11-12 02:25:12,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:12,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:12,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:25:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:12,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:25:12,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:12,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:25:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:12,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:25:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:12,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-12 02:25:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:12,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-12 02:25:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:12,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-12 02:25:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:12,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-12 02:25:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:12,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-12 02:25:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:12,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-12 02:25:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:12,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-12 02:25:12,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:12,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-12 02:25:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:12,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-12 02:25:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:12,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-12 02:25:12,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:12,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-12 02:25:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:12,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-12 02:25:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:12,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-12 02:25:12,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:12,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-12 02:25:12,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:12,883 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-12 02:25:12,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:12,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178969295] [2023-11-12 02:25:12,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178969295] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:25:12,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005633418] [2023-11-12 02:25:12,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:12,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:25:12,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:25:12,886 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:25:12,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:25:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:13,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 1261 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:25:13,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:25:13,398 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-12 02:25:13,398 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:25:13,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005633418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:13,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:25:13,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-11-12 02:25:13,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111956186] [2023-11-12 02:25:13,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:13,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:25:13,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:13,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:25:13,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-11-12 02:25:13,402 INFO L87 Difference]: Start difference. First operand 489 states and 752 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-12 02:25:13,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:13,516 INFO L93 Difference]: Finished difference Result 967 states and 1493 transitions. [2023-11-12 02:25:13,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:25:13,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 147 [2023-11-12 02:25:13,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:13,522 INFO L225 Difference]: With dead ends: 967 [2023-11-12 02:25:13,523 INFO L226 Difference]: Without dead ends: 491 [2023-11-12 02:25:13,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:25:13,527 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 8 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2459 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:13,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2459 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:25:13,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2023-11-12 02:25:13,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2023-11-12 02:25:13,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 381 states have (on average 1.5590551181102361) internal successors, (594), 387 states have internal predecessors, (594), 79 states have call successors, (79), 28 states have call predecessors, (79), 30 states have return successors, (85), 77 states have call predecessors, (85), 78 states have call successors, (85) [2023-11-12 02:25:13,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 758 transitions. [2023-11-12 02:25:13,560 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 758 transitions. Word has length 147 [2023-11-12 02:25:13,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:13,561 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 758 transitions. [2023-11-12 02:25:13,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-12 02:25:13,562 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 758 transitions. [2023-11-12 02:25:13,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-12 02:25:13,566 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:13,567 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:13,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:25:13,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:25:13,776 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:13,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:13,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1787004895, now seen corresponding path program 1 times [2023-11-12 02:25:13,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:13,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733042973] [2023-11-12 02:25:13,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:13,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:14,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:25:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:14,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:25:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:14,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:25:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:14,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:25:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:14,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:25:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:14,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-12 02:25:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:14,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-12 02:25:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:14,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-12 02:25:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:14,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-12 02:25:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:14,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-12 02:25:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:14,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-12 02:25:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:14,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-12 02:25:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:14,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-12 02:25:14,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:14,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-12 02:25:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:14,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-12 02:25:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:14,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-12 02:25:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:14,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-12 02:25:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:14,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-12 02:25:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:14,169 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-12 02:25:14,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:14,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733042973] [2023-11-12 02:25:14,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733042973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:14,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:14,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:14,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246025639] [2023-11-12 02:25:14,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:14,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:25:14,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:14,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:25:14,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:25:14,173 INFO L87 Difference]: Start difference. First operand 491 states and 758 transitions. Second operand has 9 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-12 02:25:17,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:17,323 INFO L93 Difference]: Finished difference Result 1093 states and 1709 transitions. [2023-11-12 02:25:17,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:25:17,324 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2023-11-12 02:25:17,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:17,332 INFO L225 Difference]: With dead ends: 1093 [2023-11-12 02:25:17,332 INFO L226 Difference]: Without dead ends: 625 [2023-11-12 02:25:17,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-12 02:25:17,336 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1425 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 2754 mSolverCounterSat, 471 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 3225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 471 IncrementalHoareTripleChecker+Valid, 2754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:17,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1426 Valid, 1333 Invalid, 3225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [471 Valid, 2754 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-12 02:25:17,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2023-11-12 02:25:17,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 491. [2023-11-12 02:25:17,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 381 states have (on average 1.5590551181102361) internal successors, (594), 387 states have internal predecessors, (594), 79 states have call successors, (79), 28 states have call predecessors, (79), 30 states have return successors, (84), 77 states have call predecessors, (84), 78 states have call successors, (84) [2023-11-12 02:25:17,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 757 transitions. [2023-11-12 02:25:17,408 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 757 transitions. Word has length 148 [2023-11-12 02:25:17,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:17,409 INFO L495 AbstractCegarLoop]: Abstraction has 491 states and 757 transitions. [2023-11-12 02:25:17,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-12 02:25:17,410 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 757 transitions. [2023-11-12 02:25:17,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-12 02:25:17,414 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:17,414 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:17,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:25:17,414 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:17,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:17,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1199432545, now seen corresponding path program 2 times [2023-11-12 02:25:17,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:17,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855271073] [2023-11-12 02:25:17,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:17,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:17,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:17,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:25:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:17,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:25:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:17,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:25:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:17,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:25:17,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:17,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:25:17,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:17,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-12 02:25:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:17,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-12 02:25:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:17,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-12 02:25:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:17,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-12 02:25:17,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:17,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-12 02:25:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:17,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-12 02:25:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:17,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-12 02:25:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:17,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-12 02:25:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:17,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-12 02:25:17,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:17,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-12 02:25:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:17,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-12 02:25:17,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:17,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-12 02:25:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:17,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-12 02:25:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:17,777 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-12 02:25:17,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:17,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855271073] [2023-11-12 02:25:17,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855271073] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:17,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:17,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-12 02:25:17,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40192643] [2023-11-12 02:25:17,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:17,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:25:17,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:17,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:25:17,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:25:17,782 INFO L87 Difference]: Start difference. First operand 491 states and 757 transitions. Second operand has 9 states, 8 states have (on average 11.25) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-12 02:25:21,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:21,299 INFO L93 Difference]: Finished difference Result 1095 states and 1712 transitions. [2023-11-12 02:25:21,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:25:21,300 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 149 [2023-11-12 02:25:21,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:21,308 INFO L225 Difference]: With dead ends: 1095 [2023-11-12 02:25:21,308 INFO L226 Difference]: Without dead ends: 627 [2023-11-12 02:25:21,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-12 02:25:21,312 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1417 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 2803 mSolverCounterSat, 448 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 1334 SdHoareTripleChecker+Invalid, 3251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 448 IncrementalHoareTripleChecker+Valid, 2803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:21,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1418 Valid, 1334 Invalid, 3251 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [448 Valid, 2803 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-12 02:25:21,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2023-11-12 02:25:21,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 493. [2023-11-12 02:25:21,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 382 states have (on average 1.557591623036649) internal successors, (595), 389 states have internal predecessors, (595), 79 states have call successors, (79), 28 states have call predecessors, (79), 31 states have return successors, (86), 77 states have call predecessors, (86), 78 states have call successors, (86) [2023-11-12 02:25:21,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 760 transitions. [2023-11-12 02:25:21,374 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 760 transitions. Word has length 149 [2023-11-12 02:25:21,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:21,375 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 760 transitions. [2023-11-12 02:25:21,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-12 02:25:21,375 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 760 transitions. [2023-11-12 02:25:21,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-12 02:25:21,380 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:21,380 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:21,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:25:21,381 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:21,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:21,381 INFO L85 PathProgramCache]: Analyzing trace with hash 2146944700, now seen corresponding path program 1 times [2023-11-12 02:25:21,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:21,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161224148] [2023-11-12 02:25:21,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:21,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:21,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:25:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:21,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:25:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:21,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:25:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:21,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:25:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:21,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:25:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:21,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-12 02:25:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:21,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-12 02:25:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:21,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-12 02:25:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:21,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-12 02:25:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:21,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-12 02:25:21,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:21,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-12 02:25:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:21,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-12 02:25:21,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:21,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-12 02:25:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:21,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-12 02:25:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:21,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-12 02:25:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:21,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-12 02:25:21,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:21,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-12 02:25:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:21,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-12 02:25:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:21,783 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-12 02:25:21,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:21,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161224148] [2023-11-12 02:25:21,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161224148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:21,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:21,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-12 02:25:21,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541390030] [2023-11-12 02:25:21,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:21,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:25:21,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:21,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:25:21,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:25:21,787 INFO L87 Difference]: Start difference. First operand 493 states and 760 transitions. Second operand has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-12 02:25:26,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:26,031 INFO L93 Difference]: Finished difference Result 1093 states and 1707 transitions. [2023-11-12 02:25:26,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-12 02:25:26,032 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 150 [2023-11-12 02:25:26,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:26,038 INFO L225 Difference]: With dead ends: 1093 [2023-11-12 02:25:26,038 INFO L226 Difference]: Without dead ends: 627 [2023-11-12 02:25:26,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-12 02:25:26,041 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1428 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 4680 mSolverCounterSat, 461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 1845 SdHoareTripleChecker+Invalid, 5141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 4680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:26,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 1845 Invalid, 5141 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [461 Valid, 4680 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-12 02:25:26,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2023-11-12 02:25:26,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 493. [2023-11-12 02:25:26,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 382 states have (on average 1.557591623036649) internal successors, (595), 389 states have internal predecessors, (595), 79 states have call successors, (79), 28 states have call predecessors, (79), 31 states have return successors, (85), 77 states have call predecessors, (85), 78 states have call successors, (85) [2023-11-12 02:25:26,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 759 transitions. [2023-11-12 02:25:26,093 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 759 transitions. Word has length 150 [2023-11-12 02:25:26,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:26,093 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 759 transitions. [2023-11-12 02:25:26,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-12 02:25:26,094 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 759 transitions. [2023-11-12 02:25:26,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-12 02:25:26,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:26,098 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:26,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:25:26,098 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:26,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:26,099 INFO L85 PathProgramCache]: Analyzing trace with hash 581688158, now seen corresponding path program 1 times [2023-11-12 02:25:26,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:26,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603394056] [2023-11-12 02:25:26,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:26,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:26,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:25:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:26,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:25:26,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:26,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:25:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:26,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:25:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:26,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:25:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:26,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-12 02:25:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:26,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-12 02:25:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:26,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-12 02:25:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:26,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-12 02:25:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:26,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-12 02:25:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:26,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-12 02:25:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:26,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:25:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:26,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-12 02:25:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:26,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-12 02:25:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:26,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-12 02:25:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:26,438 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-12 02:25:26,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:26,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603394056] [2023-11-12 02:25:26,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603394056] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:26,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:26,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-12 02:25:26,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509373429] [2023-11-12 02:25:26,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:26,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:25:26,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:26,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:25:26,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:25:26,442 INFO L87 Difference]: Start difference. First operand 493 states and 759 transitions. Second operand has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-12 02:25:30,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:30,756 INFO L93 Difference]: Finished difference Result 1095 states and 1713 transitions. [2023-11-12 02:25:30,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-12 02:25:30,757 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 132 [2023-11-12 02:25:30,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:30,763 INFO L225 Difference]: With dead ends: 1095 [2023-11-12 02:25:30,763 INFO L226 Difference]: Without dead ends: 629 [2023-11-12 02:25:30,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-12 02:25:30,768 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1422 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 4733 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 5174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 4733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:30,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1423 Valid, 1844 Invalid, 5174 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [441 Valid, 4733 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-12 02:25:30,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2023-11-12 02:25:30,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 495. [2023-11-12 02:25:30,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 383 states have (on average 1.556135770234987) internal successors, (596), 391 states have internal predecessors, (596), 79 states have call successors, (79), 28 states have call predecessors, (79), 32 states have return successors, (90), 77 states have call predecessors, (90), 78 states have call successors, (90) [2023-11-12 02:25:30,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 765 transitions. [2023-11-12 02:25:30,814 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 765 transitions. Word has length 132 [2023-11-12 02:25:30,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:30,815 INFO L495 AbstractCegarLoop]: Abstraction has 495 states and 765 transitions. [2023-11-12 02:25:30,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-11-12 02:25:30,816 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 765 transitions. [2023-11-12 02:25:30,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-12 02:25:30,819 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:30,820 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:30,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:25:30,820 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:30,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:30,821 INFO L85 PathProgramCache]: Analyzing trace with hash 934636332, now seen corresponding path program 1 times [2023-11-12 02:25:30,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:30,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444046060] [2023-11-12 02:25:30,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:30,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:31,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:25:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:31,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:25:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:31,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:25:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:31,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:25:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:31,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:25:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:31,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-12 02:25:31,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:31,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-12 02:25:31,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:31,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-12 02:25:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:31,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-12 02:25:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:31,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-12 02:25:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:31,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-12 02:25:31,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:31,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-12 02:25:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:31,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-12 02:25:31,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:31,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-12 02:25:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:31,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-12 02:25:31,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:31,148 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-12 02:25:31,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:31,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444046060] [2023-11-12 02:25:31,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444046060] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:25:31,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376508664] [2023-11-12 02:25:31,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:31,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:25:31,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:25:31,150 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:25:31,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:25:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:31,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 1185 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:25:31,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:25:31,547 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-12 02:25:31,547 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:25:31,663 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-12 02:25:31,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376508664] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:25:31,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:25:31,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-11-12 02:25:31,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256533076] [2023-11-12 02:25:31,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:25:31,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-12 02:25:31,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:31,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-12 02:25:31,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-12 02:25:31,669 INFO L87 Difference]: Start difference. First operand 495 states and 765 transitions. Second operand has 15 states, 14 states have (on average 10.357142857142858) internal successors, (145), 11 states have internal predecessors, (145), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-12 02:25:36,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:36,281 INFO L93 Difference]: Finished difference Result 1535 states and 2510 transitions. [2023-11-12 02:25:36,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-12 02:25:36,282 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.357142857142858) internal successors, (145), 11 states have internal predecessors, (145), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 133 [2023-11-12 02:25:36,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:36,292 INFO L225 Difference]: With dead ends: 1535 [2023-11-12 02:25:36,292 INFO L226 Difference]: Without dead ends: 1071 [2023-11-12 02:25:36,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-11-12 02:25:36,296 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 2754 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 5114 mSolverCounterSat, 865 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2775 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 5979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 865 IncrementalHoareTripleChecker+Valid, 5114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:36,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2775 Valid, 2131 Invalid, 5979 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [865 Valid, 5114 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-12 02:25:36,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2023-11-12 02:25:36,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 913. [2023-11-12 02:25:36,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 722 states have (on average 1.6094182825484764) internal successors, (1162), 730 states have internal predecessors, (1162), 158 states have call successors, (158), 28 states have call predecessors, (158), 32 states have return successors, (179), 156 states have call predecessors, (179), 157 states have call successors, (179) [2023-11-12 02:25:36,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1499 transitions. [2023-11-12 02:25:36,370 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1499 transitions. Word has length 133 [2023-11-12 02:25:36,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:36,370 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1499 transitions. [2023-11-12 02:25:36,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.357142857142858) internal successors, (145), 11 states have internal predecessors, (145), 4 states have call successors, (36), 6 states have call predecessors, (36), 3 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-12 02:25:36,371 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1499 transitions. [2023-11-12 02:25:36,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-12 02:25:36,377 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:36,377 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:36,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:25:36,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cf7f70b-4096-47e1-8efb-4a908be48c1c/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:25:36,589 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:36,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:36,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1355936204, now seen corresponding path program 1 times [2023-11-12 02:25:36,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:36,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116855166] [2023-11-12 02:25:36,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:36,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:36,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:25:36,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:36,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:25:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:36,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:25:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:36,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:25:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:36,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:25:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:36,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-12 02:25:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:36,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-12 02:25:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:36,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-12 02:25:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:36,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-12 02:25:36,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:36,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-12 02:25:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:36,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-12 02:25:36,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:36,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-12 02:25:36,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:36,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-12 02:25:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:36,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-12 02:25:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:36,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-12 02:25:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:36,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-12 02:25:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:36,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-12 02:25:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:36,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-12 02:25:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:36,746 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-12 02:25:36,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:36,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116855166] [2023-11-12 02:25:36,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116855166] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:36,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:36,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:25:36,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037744698] [2023-11-12 02:25:36,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:36,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:25:36,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:36,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:25:36,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:25:36,748 INFO L87 Difference]: Start difference. First operand 913 states and 1499 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-12 02:25:38,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:38,859 INFO L93 Difference]: Finished difference Result 2280 states and 3839 transitions. [2023-11-12 02:25:38,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:25:38,864 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 155 [2023-11-12 02:25:38,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:38,878 INFO L225 Difference]: With dead ends: 2280 [2023-11-12 02:25:38,878 INFO L226 Difference]: Without dead ends: 1445 [2023-11-12 02:25:38,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:25:38,883 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 1547 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 1546 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 1546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:38,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1566 Valid, 1019 Invalid, 2068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-12 02:25:38,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2023-11-12 02:25:38,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1303. [2023-11-12 02:25:38,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 1033 states have (on average 1.628267182962246) internal successors, (1682), 1041 states have internal predecessors, (1682), 237 states have call successors, (237), 28 states have call predecessors, (237), 32 states have return successors, (268), 235 states have call predecessors, (268), 236 states have call successors, (268) [2023-11-12 02:25:38,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 2187 transitions. [2023-11-12 02:25:38,983 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 2187 transitions. Word has length 155 [2023-11-12 02:25:38,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:38,984 INFO L495 AbstractCegarLoop]: Abstraction has 1303 states and 2187 transitions. [2023-11-12 02:25:38,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-12 02:25:38,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 2187 transitions. [2023-11-12 02:25:38,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-12 02:25:38,995 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:38,995 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:38,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:25:38,995 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:38,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:38,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1729010125, now seen corresponding path program 1 times [2023-11-12 02:25:38,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:38,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492931957] [2023-11-12 02:25:38,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:38,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:25:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:25:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:25:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:25:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:25:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-12 02:25:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-12 02:25:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-12 02:25:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-12 02:25:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-12 02:25:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-12 02:25:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-12 02:25:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-12 02:25:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-12 02:25:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-12 02:25:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-12 02:25:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-12 02:25:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-12 02:25:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:39,189 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-12 02:25:39,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:39,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492931957] [2023-11-12 02:25:39,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492931957] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:39,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:39,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:25:39,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822271065] [2023-11-12 02:25:39,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:39,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:25:39,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:39,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:25:39,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:25:39,193 INFO L87 Difference]: Start difference. First operand 1303 states and 2187 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-12 02:25:41,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:41,432 INFO L93 Difference]: Finished difference Result 3254 states and 5548 transitions. [2023-11-12 02:25:41,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:25:41,432 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 156 [2023-11-12 02:25:41,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:41,450 INFO L225 Difference]: With dead ends: 3254 [2023-11-12 02:25:41,450 INFO L226 Difference]: Without dead ends: 2082 [2023-11-12 02:25:41,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:25:41,456 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 1544 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 2056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 531 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:41,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1563 Valid, 976 Invalid, 2056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [531 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-12 02:25:41,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2023-11-12 02:25:41,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 1940. [2023-11-12 02:25:41,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1940 states, 1551 states have (on average 1.6376531270148291) internal successors, (2540), 1559 states have internal predecessors, (2540), 356 states have call successors, (356), 28 states have call predecessors, (356), 32 states have return successors, (387), 354 states have call predecessors, (387), 355 states have call successors, (387) [2023-11-12 02:25:41,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1940 states to 1940 states and 3283 transitions. [2023-11-12 02:25:41,613 INFO L78 Accepts]: Start accepts. Automaton has 1940 states and 3283 transitions. Word has length 156 [2023-11-12 02:25:41,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:41,614 INFO L495 AbstractCegarLoop]: Abstraction has 1940 states and 3283 transitions. [2023-11-12 02:25:41,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-12 02:25:41,614 INFO L276 IsEmpty]: Start isEmpty. Operand 1940 states and 3283 transitions. [2023-11-12 02:25:41,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-12 02:25:41,631 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:41,632 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:41,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:25:41,632 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:41,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:41,633 INFO L85 PathProgramCache]: Analyzing trace with hash -199308063, now seen corresponding path program 1 times [2023-11-12 02:25:41,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:41,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857749550] [2023-11-12 02:25:41,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:41,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:41,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:25:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:25:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:25:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:25:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:25:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-12 02:25:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-12 02:25:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-12 02:25:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-12 02:25:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-12 02:25:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:25:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-12 02:25:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-12 02:25:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-12 02:25:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-12 02:25:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,783 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-12 02:25:41,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:41,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857749550] [2023-11-12 02:25:41,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857749550] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:41,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:41,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:25:41,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623342144] [2023-11-12 02:25:41,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:41,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:25:41,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:41,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:25:41,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:25:41,787 INFO L87 Difference]: Start difference. First operand 1940 states and 3283 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:25:44,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:25:44,126 INFO L93 Difference]: Finished difference Result 4734 states and 8159 transitions. [2023-11-12 02:25:44,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:25:44,127 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 138 [2023-11-12 02:25:44,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:25:44,153 INFO L225 Difference]: With dead ends: 4734 [2023-11-12 02:25:44,153 INFO L226 Difference]: Without dead ends: 3060 [2023-11-12 02:25:44,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:25:44,163 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 1542 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 521 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 2050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 521 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:25:44,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1561 Valid, 975 Invalid, 2050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [521 Valid, 1529 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-12 02:25:44,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3060 states. [2023-11-12 02:25:44,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3060 to 2918. [2023-11-12 02:25:44,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2918 states, 2367 states have (on average 1.6451204055766793) internal successors, (3894), 2375 states have internal predecessors, (3894), 518 states have call successors, (518), 28 states have call predecessors, (518), 32 states have return successors, (565), 516 states have call predecessors, (565), 517 states have call successors, (565) [2023-11-12 02:25:44,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 4977 transitions. [2023-11-12 02:25:44,410 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 4977 transitions. Word has length 138 [2023-11-12 02:25:44,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:25:44,411 INFO L495 AbstractCegarLoop]: Abstraction has 2918 states and 4977 transitions. [2023-11-12 02:25:44,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:25:44,411 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 4977 transitions. [2023-11-12 02:25:44,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-12 02:25:44,429 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:25:44,430 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:44,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-12 02:25:44,430 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:25:44,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:44,431 INFO L85 PathProgramCache]: Analyzing trace with hash -274246156, now seen corresponding path program 1 times [2023-11-12 02:25:44,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:44,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615971182] [2023-11-12 02:25:44,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:44,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-12 02:25:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-12 02:25:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-12 02:25:44,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-12 02:25:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:25:44,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-12 02:25:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-12 02:25:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-12 02:25:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-12 02:25:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-12 02:25:44,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-12 02:25:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-12 02:25:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-12 02:25:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-12 02:25:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-12 02:25:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-12 02:25:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-12 02:25:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-12 02:25:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:44,610 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-12 02:25:44,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:44,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615971182] [2023-11-12 02:25:44,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615971182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:44,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:44,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:25:44,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305871439] [2023-11-12 02:25:44,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:44,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:25:44,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:44,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:25:44,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:25:44,614 INFO L87 Difference]: Start difference. First operand 2918 states and 4977 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)