./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu --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 5be9e48e11f5f92f9ccb04262780ea6fa0bae40b757b81b8e52fca7547f54831 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:50:01,406 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:50:01,519 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:50:01,523 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:50:01,530 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:50:01,567 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:50:01,571 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:50:01,572 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:50:01,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:50:01,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:50:01,583 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:50:01,584 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:50:01,584 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:50:01,585 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:50:01,585 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:50:01,585 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:50:01,586 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:50:01,586 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:50:01,587 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:50:01,587 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:50:01,589 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:50:01,592 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:50:01,593 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:50:01,593 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:50:01,594 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:50:01,595 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:50:01,595 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:50:01,596 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:50:01,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:50:01,597 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:50:01,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:50:01,599 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:50:01,600 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:50:01,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:50:01,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:50:01,600 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:50:01,601 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:50:01,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:50:01,601 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:50:01,601 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_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5be9e48e11f5f92f9ccb04262780ea6fa0bae40b757b81b8e52fca7547f54831 [2023-11-19 07:50:01,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:50:01,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:50:01,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:50:01,921 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:50:01,922 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:50:01,923 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/email_spec8_product26.cil.c [2023-11-19 07:50:05,149 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:50:05,479 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:50:05,482 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/sv-benchmarks/c/product-lines/email_spec8_product26.cil.c [2023-11-19 07:50:05,512 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/data/d2b7534d8/75b6d721a0c241cfae116ef469d43e5e/FLAGa89cd62b0 [2023-11-19 07:50:05,528 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/data/d2b7534d8/75b6d721a0c241cfae116ef469d43e5e [2023-11-19 07:50:05,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:50:05,532 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:50:05,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:50:05,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:50:05,539 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:50:05,540 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:05" (1/1) ... [2023-11-19 07:50:05,541 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71bedcaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:05, skipping insertion in model container [2023-11-19 07:50:05,541 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:05" (1/1) ... [2023-11-19 07:50:05,628 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:50:06,055 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_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/sv-benchmarks/c/product-lines/email_spec8_product26.cil.c[14808,14821] [2023-11-19 07:50:06,250 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:50:06,268 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:50:06,280 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-11-19 07:50:06,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [392] [2023-11-19 07:50:06,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [436] [2023-11-19 07:50:06,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [794] [2023-11-19 07:50:06,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [803] [2023-11-19 07:50:06,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1169] [2023-11-19 07:50:06,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1391] [2023-11-19 07:50:06,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1426] [2023-11-19 07:50:06,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1443] [2023-11-19 07:50:06,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1847] [2023-11-19 07:50:06,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1950] [2023-11-19 07:50:06,376 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_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/sv-benchmarks/c/product-lines/email_spec8_product26.cil.c[14808,14821] [2023-11-19 07:50:06,449 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:50:06,482 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:50:06,490 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:50:06,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:06 WrapperNode [2023-11-19 07:50:06,490 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:50:06,492 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:50:06,492 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:50:06,492 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:50:06,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:06" (1/1) ... [2023-11-19 07:50:06,533 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:06" (1/1) ... [2023-11-19 07:50:06,611 INFO L138 Inliner]: procedures = 132, calls = 230, calls flagged for inlining = 61, calls inlined = 58, statements flattened = 1119 [2023-11-19 07:50:06,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:50:06,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:50:06,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:50:06,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:50:06,624 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:06" (1/1) ... [2023-11-19 07:50:06,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:06" (1/1) ... [2023-11-19 07:50:06,634 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:06" (1/1) ... [2023-11-19 07:50:06,634 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:06" (1/1) ... [2023-11-19 07:50:06,659 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:06" (1/1) ... [2023-11-19 07:50:06,671 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:06" (1/1) ... [2023-11-19 07:50:06,677 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:06" (1/1) ... [2023-11-19 07:50:06,683 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:06" (1/1) ... [2023-11-19 07:50:06,693 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:50:06,695 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:50:06,695 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:50:06,695 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:50:06,696 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:06" (1/1) ... [2023-11-19 07:50:06,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:50:06,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:06,770 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:50:06,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:50:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-11-19 07:50:06,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-11-19 07:50:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-19 07:50:06,831 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-19 07:50:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-11-19 07:50:06,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-11-19 07:50:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-19 07:50:06,832 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-19 07:50:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-19 07:50:06,832 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-19 07:50:06,832 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-11-19 07:50:06,833 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-11-19 07:50:06,833 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-19 07:50:06,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-19 07:50:06,834 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-19 07:50:06,834 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-19 07:50:06,835 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-19 07:50:06,836 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-19 07:50:06,837 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-19 07:50:06,837 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-19 07:50:06,838 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-19 07:50:06,838 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-19 07:50:06,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-19 07:50:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-11-19 07:50:06,841 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-11-19 07:50:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-19 07:50:06,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-19 07:50:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:50:06,841 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-11-19 07:50:06,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-11-19 07:50:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-19 07:50:06,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-19 07:50:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-19 07:50:06,842 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-19 07:50:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-19 07:50:06,842 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-19 07:50:06,842 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-19 07:50:06,842 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-19 07:50:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-19 07:50:06,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-19 07:50:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-19 07:50:06,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-19 07:50:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-19 07:50:06,843 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-19 07:50:06,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:50:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-19 07:50:06,844 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-19 07:50:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-11-19 07:50:06,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-11-19 07:50:06,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:50:06,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:50:07,075 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:50:07,078 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:50:08,184 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:50:08,209 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:50:08,209 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:50:08,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:08 BoogieIcfgContainer [2023-11-19 07:50:08,225 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:50:08,230 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:50:08,231 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:50:08,234 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:50:08,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:50:05" (1/3) ... [2023-11-19 07:50:08,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35368e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:08, skipping insertion in model container [2023-11-19 07:50:08,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:06" (2/3) ... [2023-11-19 07:50:08,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35368e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:08, skipping insertion in model container [2023-11-19 07:50:08,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:08" (3/3) ... [2023-11-19 07:50:08,238 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product26.cil.c [2023-11-19 07:50:08,259 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:50:08,259 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:50:08,324 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:50:08,331 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;@72a7b641, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:50:08,332 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:50:08,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 400 states, 313 states have (on average 1.5623003194888179) internal successors, (489), 318 states have internal predecessors, (489), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2023-11-19 07:50:08,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-19 07:50:08,372 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:08,376 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:08,377 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:08,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:08,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1772077766, now seen corresponding path program 1 times [2023-11-19 07:50:08,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:08,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239524981] [2023-11-19 07:50:08,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:08,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:09,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:50:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:09,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:50:09,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:09,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:50:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:09,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:50:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:09,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 07:50:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:09,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:50:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:09,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:50:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:09,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-19 07:50:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:09,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 07:50:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:09,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-19 07:50:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:09,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-19 07:50:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:09,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-19 07:50:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:09,351 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:50:09,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:09,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239524981] [2023-11-19 07:50:09,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239524981] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:09,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11310508] [2023-11-19 07:50:09,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:09,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:09,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:09,360 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:09,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:50:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:09,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:50:09,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:09,828 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-19 07:50:09,829 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:50:09,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11310508] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:09,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:50:09,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-11-19 07:50:09,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479242507] [2023-11-19 07:50:09,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:09,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:50:09,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:09,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:50:09,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:50:09,875 INFO L87 Difference]: Start difference. First operand has 400 states, 313 states have (on average 1.5623003194888179) internal successors, (489), 318 states have internal predecessors, (489), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:50:09,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:09,947 INFO L93 Difference]: Finished difference Result 602 states and 908 transitions. [2023-11-19 07:50:09,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:50:09,950 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2023-11-19 07:50:09,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:09,968 INFO L225 Difference]: With dead ends: 602 [2023-11-19 07:50:09,969 INFO L226 Difference]: Without dead ends: 393 [2023-11-19 07:50:09,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:50:09,980 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:09,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:10,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2023-11-19 07:50:10,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2023-11-19 07:50:10,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 307 states have (on average 1.5570032573289903) internal successors, (478), 311 states have internal predecessors, (478), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-19 07:50:10,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 601 transitions. [2023-11-19 07:50:10,073 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 601 transitions. Word has length 98 [2023-11-19 07:50:10,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:10,076 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 601 transitions. [2023-11-19 07:50:10,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:50:10,083 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 601 transitions. [2023-11-19 07:50:10,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-19 07:50:10,093 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:10,094 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:10,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:10,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:50:10,308 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:10,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:10,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1213717743, now seen corresponding path program 1 times [2023-11-19 07:50:10,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:10,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799560306] [2023-11-19 07:50:10,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:10,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:50:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:50:10,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:50:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:50:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 07:50:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:50:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-19 07:50:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-19 07:50:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-19 07:50:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:50:10,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-19 07:50:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-19 07:50:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:10,747 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:50:10,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:10,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799560306] [2023-11-19 07:50:10,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799560306] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:10,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231405906] [2023-11-19 07:50:10,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:10,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:10,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:10,750 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:10,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:50:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:11,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:50:11,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:11,162 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-19 07:50:11,162 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:50:11,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231405906] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:11,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:50:11,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-19 07:50:11,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437574369] [2023-11-19 07:50:11,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:11,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:11,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:11,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:11,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:50:11,166 INFO L87 Difference]: Start difference. First operand 393 states and 601 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:50:11,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:11,233 INFO L93 Difference]: Finished difference Result 592 states and 886 transitions. [2023-11-19 07:50:11,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:11,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 99 [2023-11-19 07:50:11,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:11,242 INFO L225 Difference]: With dead ends: 592 [2023-11-19 07:50:11,242 INFO L226 Difference]: Without dead ends: 396 [2023-11-19 07:50:11,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:50:11,249 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 1 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:11,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1196 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:11,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2023-11-19 07:50:11,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 395. [2023-11-19 07:50:11,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 309 states have (on average 1.5533980582524272) internal successors, (480), 313 states have internal predecessors, (480), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-19 07:50:11,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 603 transitions. [2023-11-19 07:50:11,315 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 603 transitions. Word has length 99 [2023-11-19 07:50:11,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:11,318 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 603 transitions. [2023-11-19 07:50:11,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:50:11,318 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 603 transitions. [2023-11-19 07:50:11,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-19 07:50:11,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:11,322 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:11,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:11,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:11,542 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:11,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:11,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1440636413, now seen corresponding path program 1 times [2023-11-19 07:50:11,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:11,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550934585] [2023-11-19 07:50:11,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:11,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:11,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:50:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:11,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:50:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:11,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:50:11,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:11,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:50:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:11,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 07:50:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:11,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:50:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:11,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-19 07:50:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:11,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-19 07:50:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:11,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:50:11,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:11,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-19 07:50:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:11,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-19 07:50:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:11,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-19 07:50:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:11,874 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:50:11,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:11,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550934585] [2023-11-19 07:50:11,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550934585] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:11,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641796989] [2023-11-19 07:50:11,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:11,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:11,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:11,882 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:11,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:50:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:12,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 1071 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:50:12,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:12,217 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-19 07:50:12,218 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:50:12,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641796989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:12,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:50:12,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-19 07:50:12,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402144210] [2023-11-19 07:50:12,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:12,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:12,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:12,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:12,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:50:12,221 INFO L87 Difference]: Start difference. First operand 395 states and 603 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:50:12,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:12,260 INFO L93 Difference]: Finished difference Result 843 states and 1306 transitions. [2023-11-19 07:50:12,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:12,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2023-11-19 07:50:12,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:12,266 INFO L225 Difference]: With dead ends: 843 [2023-11-19 07:50:12,266 INFO L226 Difference]: Without dead ends: 475 [2023-11-19 07:50:12,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:50:12,269 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 142 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1180 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 [2023-11-19 07:50:12,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1180 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:12,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2023-11-19 07:50:12,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 467. [2023-11-19 07:50:12,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 367 states have (on average 1.5722070844686649) internal successors, (577), 371 states have internal predecessors, (577), 76 states have call successors, (76), 23 states have call predecessors, (76), 23 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-19 07:50:12,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 728 transitions. [2023-11-19 07:50:12,297 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 728 transitions. Word has length 108 [2023-11-19 07:50:12,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:12,298 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 728 transitions. [2023-11-19 07:50:12,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:50:12,298 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 728 transitions. [2023-11-19 07:50:12,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-19 07:50:12,302 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:12,302 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:12,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:12,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:12,520 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:12,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:12,521 INFO L85 PathProgramCache]: Analyzing trace with hash 630003650, now seen corresponding path program 1 times [2023-11-19 07:50:12,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:12,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034416648] [2023-11-19 07:50:12,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:12,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:12,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:50:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:12,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:50:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:12,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:50:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:12,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:50:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:12,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 07:50:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:12,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:50:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:12,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-19 07:50:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:12,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-19 07:50:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:12,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-19 07:50:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:12,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-19 07:50:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:12,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-19 07:50:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:12,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-19 07:50:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:12,829 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:50:12,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:12,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034416648] [2023-11-19 07:50:12,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034416648] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:12,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595484511] [2023-11-19 07:50:12,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:12,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:12,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:12,832 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:12,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:50:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:13,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:50:13,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:13,229 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-19 07:50:13,229 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:50:13,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595484511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:13,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:50:13,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-19 07:50:13,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829719901] [2023-11-19 07:50:13,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:13,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:50:13,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:13,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:50:13,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:50:13,232 INFO L87 Difference]: Start difference. First operand 467 states and 728 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 07:50:13,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:13,323 INFO L93 Difference]: Finished difference Result 925 states and 1446 transitions. [2023-11-19 07:50:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:50:13,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 109 [2023-11-19 07:50:13,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:13,328 INFO L225 Difference]: With dead ends: 925 [2023-11-19 07:50:13,328 INFO L226 Difference]: Without dead ends: 469 [2023-11-19 07:50:13,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:50:13,332 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 8 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2357 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 [2023-11-19 07:50:13,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2357 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:13,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-11-19 07:50:13,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2023-11-19 07:50:13,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 368 states have (on average 1.5706521739130435) internal successors, (578), 373 states have internal predecessors, (578), 76 states have call successors, (76), 23 states have call predecessors, (76), 24 states have return successors, (77), 74 states have call predecessors, (77), 75 states have call successors, (77) [2023-11-19 07:50:13,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 731 transitions. [2023-11-19 07:50:13,357 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 731 transitions. Word has length 109 [2023-11-19 07:50:13,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:13,357 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 731 transitions. [2023-11-19 07:50:13,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 07:50:13,358 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 731 transitions. [2023-11-19 07:50:13,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-19 07:50:13,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:13,361 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:13,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:13,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:13,576 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:13,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:13,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1737380185, now seen corresponding path program 1 times [2023-11-19 07:50:13,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:13,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170770643] [2023-11-19 07:50:13,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:13,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:13,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:50:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:13,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:50:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:13,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:50:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:13,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:50:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:13,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-19 07:50:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:13,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-19 07:50:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:13,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-19 07:50:13,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:13,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-19 07:50:13,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:13,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-19 07:50:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:13,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 07:50:13,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:13,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-19 07:50:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:13,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-19 07:50:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:13,922 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 07:50:13,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:13,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170770643] [2023-11-19 07:50:13,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170770643] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:13,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467990225] [2023-11-19 07:50:13,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:13,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:13,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:13,928 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:13,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:50:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:14,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:50:14,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:14,326 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-19 07:50:14,326 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:50:14,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467990225] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:14,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:50:14,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-11-19 07:50:14,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619075051] [2023-11-19 07:50:14,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:14,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:50:14,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:14,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:50:14,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:50:14,329 INFO L87 Difference]: Start difference. First operand 469 states and 731 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 07:50:14,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:14,418 INFO L93 Difference]: Finished difference Result 927 states and 1451 transitions. [2023-11-19 07:50:14,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:50:14,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 110 [2023-11-19 07:50:14,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:14,426 INFO L225 Difference]: With dead ends: 927 [2023-11-19 07:50:14,426 INFO L226 Difference]: Without dead ends: 471 [2023-11-19 07:50:14,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-19 07:50:14,429 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 8 mSDsluCounter, 1753 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2343 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 [2023-11-19 07:50:14,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2343 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:14,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-11-19 07:50:14,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2023-11-19 07:50:14,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 369 states have (on average 1.5691056910569106) internal successors, (579), 375 states have internal predecessors, (579), 76 states have call successors, (76), 23 states have call predecessors, (76), 25 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2023-11-19 07:50:14,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 737 transitions. [2023-11-19 07:50:14,462 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 737 transitions. Word has length 110 [2023-11-19 07:50:14,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:14,462 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 737 transitions. [2023-11-19 07:50:14,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 07:50:14,463 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 737 transitions. [2023-11-19 07:50:14,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-19 07:50:14,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:14,466 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:14,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:14,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:14,689 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:14,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:14,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1454142977, now seen corresponding path program 1 times [2023-11-19 07:50:14,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:14,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782492911] [2023-11-19 07:50:14,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:14,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:14,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:50:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:14,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:50:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:14,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:50:14,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:14,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:50:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:14,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:50:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:14,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:50:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:14,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:50:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:14,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-19 07:50:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:14,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-19 07:50:14,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:14,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-19 07:50:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:14,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-19 07:50:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:14,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-19 07:50:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:14,967 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:50:14,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:14,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782492911] [2023-11-19 07:50:14,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782492911] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:14,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:14,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:50:14,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081043299] [2023-11-19 07:50:14,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:14,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:50:14,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:14,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:50:14,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:50:14,970 INFO L87 Difference]: Start difference. First operand 471 states and 737 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 07:50:18,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:18,123 INFO L93 Difference]: Finished difference Result 1112 states and 1766 transitions. [2023-11-19 07:50:18,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:50:18,123 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2023-11-19 07:50:18,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:18,144 INFO L225 Difference]: With dead ends: 1112 [2023-11-19 07:50:18,144 INFO L226 Difference]: Without dead ends: 664 [2023-11-19 07:50:18,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:50:18,147 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 1325 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 3017 mSolverCounterSat, 449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 3466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 449 IncrementalHoareTripleChecker+Valid, 3017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:18,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 1397 Invalid, 3466 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [449 Valid, 3017 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-19 07:50:18,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2023-11-19 07:50:18,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 471. [2023-11-19 07:50:18,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 369 states have (on average 1.5691056910569106) internal successors, (579), 375 states have internal predecessors, (579), 76 states have call successors, (76), 23 states have call predecessors, (76), 25 states have return successors, (81), 74 states have call predecessors, (81), 75 states have call successors, (81) [2023-11-19 07:50:18,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 736 transitions. [2023-11-19 07:50:18,204 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 736 transitions. Word has length 111 [2023-11-19 07:50:18,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:18,205 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 736 transitions. [2023-11-19 07:50:18,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 07:50:18,206 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 736 transitions. [2023-11-19 07:50:18,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-19 07:50:18,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:18,209 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:18,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:50:18,210 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:18,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:18,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1166401654, now seen corresponding path program 2 times [2023-11-19 07:50:18,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:18,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236334913] [2023-11-19 07:50:18,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:18,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:18,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:50:18,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:18,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:50:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:18,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:50:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:18,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:50:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:18,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:50:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:18,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-19 07:50:18,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:18,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 07:50:18,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:18,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-19 07:50:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:18,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-19 07:50:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:18,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-19 07:50:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:18,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-19 07:50:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:18,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-19 07:50:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:18,455 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-19 07:50:18,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:18,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236334913] [2023-11-19 07:50:18,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236334913] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:18,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:18,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:50:18,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665638728] [2023-11-19 07:50:18,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:18,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:50:18,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:18,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:50:18,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:50:18,458 INFO L87 Difference]: Start difference. First operand 471 states and 736 transitions. Second operand has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 07:50:21,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:21,667 INFO L93 Difference]: Finished difference Result 1114 states and 1769 transitions. [2023-11-19 07:50:21,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:50:21,668 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 112 [2023-11-19 07:50:21,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:21,676 INFO L225 Difference]: With dead ends: 1114 [2023-11-19 07:50:21,676 INFO L226 Difference]: Without dead ends: 666 [2023-11-19 07:50:21,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-19 07:50:21,683 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 1319 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 3066 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 3505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 3066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:21,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1320 Valid, 1397 Invalid, 3505 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [439 Valid, 3066 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-19 07:50:21,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2023-11-19 07:50:21,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 473. [2023-11-19 07:50:21,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 370 states have (on average 1.5675675675675675) internal successors, (580), 377 states have internal predecessors, (580), 76 states have call successors, (76), 23 states have call predecessors, (76), 26 states have return successors, (83), 74 states have call predecessors, (83), 75 states have call successors, (83) [2023-11-19 07:50:21,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 739 transitions. [2023-11-19 07:50:21,734 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 739 transitions. Word has length 112 [2023-11-19 07:50:21,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:21,734 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 739 transitions. [2023-11-19 07:50:21,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 07:50:21,735 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 739 transitions. [2023-11-19 07:50:21,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 07:50:21,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:21,738 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:21,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:50:21,739 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:21,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:21,739 INFO L85 PathProgramCache]: Analyzing trace with hash 904019238, now seen corresponding path program 1 times [2023-11-19 07:50:21,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:21,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675133116] [2023-11-19 07:50:21,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:21,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:21,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:50:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:21,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:50:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:21,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:50:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:21,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:50:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:21,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:50:21,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:21,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:50:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:22,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-19 07:50:22,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:22,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-19 07:50:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:22,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:50:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:22,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-19 07:50:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:22,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-19 07:50:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:22,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-19 07:50:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:22,046 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 07:50:22,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:22,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675133116] [2023-11-19 07:50:22,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675133116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:22,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:22,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-19 07:50:22,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561028962] [2023-11-19 07:50:22,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:22,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:50:22,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:22,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:50:22,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:50:22,049 INFO L87 Difference]: Start difference. First operand 473 states and 739 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-19 07:50:26,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:26,117 INFO L93 Difference]: Finished difference Result 1112 states and 1764 transitions. [2023-11-19 07:50:26,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:50:26,118 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 113 [2023-11-19 07:50:26,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:26,125 INFO L225 Difference]: With dead ends: 1112 [2023-11-19 07:50:26,125 INFO L226 Difference]: Without dead ends: 666 [2023-11-19 07:50:26,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-19 07:50:26,129 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1327 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 5022 mSolverCounterSat, 449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 1933 SdHoareTripleChecker+Invalid, 5471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 449 IncrementalHoareTripleChecker+Valid, 5022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:26,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1328 Valid, 1933 Invalid, 5471 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [449 Valid, 5022 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-19 07:50:26,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2023-11-19 07:50:26,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 473. [2023-11-19 07:50:26,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 370 states have (on average 1.5675675675675675) internal successors, (580), 377 states have internal predecessors, (580), 76 states have call successors, (76), 23 states have call predecessors, (76), 26 states have return successors, (82), 74 states have call predecessors, (82), 75 states have call successors, (82) [2023-11-19 07:50:26,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 738 transitions. [2023-11-19 07:50:26,177 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 738 transitions. Word has length 113 [2023-11-19 07:50:26,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:26,177 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 738 transitions. [2023-11-19 07:50:26,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-19 07:50:26,178 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 738 transitions. [2023-11-19 07:50:26,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-19 07:50:26,181 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:26,182 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:26,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:50:26,182 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:26,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:26,183 INFO L85 PathProgramCache]: Analyzing trace with hash 335510668, now seen corresponding path program 2 times [2023-11-19 07:50:26,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:26,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111967078] [2023-11-19 07:50:26,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:26,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:26,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:50:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:26,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:50:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:26,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:50:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:26,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:50:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:26,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:50:26,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:26,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:50:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:26,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-19 07:50:26,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:26,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 07:50:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:26,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-19 07:50:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:26,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-19 07:50:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:26,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-19 07:50:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:26,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-19 07:50:26,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:26,508 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 07:50:26,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:26,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111967078] [2023-11-19 07:50:26,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111967078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:26,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:26,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-19 07:50:26,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199967866] [2023-11-19 07:50:26,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:26,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:50:26,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:26,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:50:26,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:50:26,513 INFO L87 Difference]: Start difference. First operand 473 states and 738 transitions. Second operand has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-19 07:50:30,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:30,492 INFO L93 Difference]: Finished difference Result 1114 states and 1770 transitions. [2023-11-19 07:50:30,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:50:30,493 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 114 [2023-11-19 07:50:30,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:30,506 INFO L225 Difference]: With dead ends: 1114 [2023-11-19 07:50:30,506 INFO L226 Difference]: Without dead ends: 668 [2023-11-19 07:50:30,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-19 07:50:30,511 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1324 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 5126 mSolverCounterSat, 426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 1933 SdHoareTripleChecker+Invalid, 5552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 426 IncrementalHoareTripleChecker+Valid, 5126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:30,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 1933 Invalid, 5552 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [426 Valid, 5126 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-19 07:50:30,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2023-11-19 07:50:30,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 475. [2023-11-19 07:50:30,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 371 states have (on average 1.5660377358490567) internal successors, (581), 379 states have internal predecessors, (581), 76 states have call successors, (76), 23 states have call predecessors, (76), 27 states have return successors, (87), 74 states have call predecessors, (87), 75 states have call successors, (87) [2023-11-19 07:50:30,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 744 transitions. [2023-11-19 07:50:30,563 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 744 transitions. Word has length 114 [2023-11-19 07:50:30,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:30,564 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 744 transitions. [2023-11-19 07:50:30,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.181818181818182) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-19 07:50:30,565 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 744 transitions. [2023-11-19 07:50:30,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-19 07:50:30,569 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:30,569 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:30,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:50:30,570 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:30,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:30,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1768204843, now seen corresponding path program 1 times [2023-11-19 07:50:30,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:30,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666456874] [2023-11-19 07:50:30,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:30,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:30,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:50:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:30,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:50:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:30,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:50:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:30,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:50:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:30,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:50:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:30,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:50:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:30,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-19 07:50:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:30,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-19 07:50:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:30,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-19 07:50:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:30,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-19 07:50:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:30,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-19 07:50:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:30,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-19 07:50:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:30,861 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-19 07:50:30,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:30,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666456874] [2023-11-19 07:50:30,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666456874] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:30,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651514496] [2023-11-19 07:50:30,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:30,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:30,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:30,863 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:30,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:50:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:31,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 1082 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:50:31,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:31,205 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:50:31,205 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:50:31,320 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:50:31,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651514496] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:50:31,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:50:31,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-11-19 07:50:31,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21224518] [2023-11-19 07:50:31,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:50:31,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-19 07:50:31,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:31,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-19 07:50:31,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:50:31,324 INFO L87 Difference]: Start difference. First operand 475 states and 744 transitions. Second operand has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-19 07:50:35,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:35,315 INFO L93 Difference]: Finished difference Result 1579 states and 2607 transitions. [2023-11-19 07:50:35,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-19 07:50:35,319 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 115 [2023-11-19 07:50:35,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:35,329 INFO L225 Difference]: With dead ends: 1579 [2023-11-19 07:50:35,329 INFO L226 Difference]: Without dead ends: 1135 [2023-11-19 07:50:35,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-11-19 07:50:35,333 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 2860 mSDsluCounter, 1969 mSDsCounter, 0 mSdLazyCounter, 4907 mSolverCounterSat, 817 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2880 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 5724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 817 IncrementalHoareTripleChecker+Valid, 4907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:35,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2880 Valid, 2178 Invalid, 5724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [817 Valid, 4907 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-19 07:50:35,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2023-11-19 07:50:35,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 918. [2023-11-19 07:50:35,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 735 states have (on average 1.6149659863945578) internal successors, (1187), 743 states have internal predecessors, (1187), 155 states have call successors, (155), 23 states have call predecessors, (155), 27 states have return successors, (176), 153 states have call predecessors, (176), 154 states have call successors, (176) [2023-11-19 07:50:35,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1518 transitions. [2023-11-19 07:50:35,405 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1518 transitions. Word has length 115 [2023-11-19 07:50:35,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:35,406 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1518 transitions. [2023-11-19 07:50:35,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.214285714285714) internal successors, (129), 11 states have internal predecessors, (129), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-19 07:50:35,406 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1518 transitions. [2023-11-19 07:50:35,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-19 07:50:35,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:35,413 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:35,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:35,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6f6f76-b0eb-4e21-b9fd-2e47f15a2245/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 07:50:35,628 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:35,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:35,628 INFO L85 PathProgramCache]: Analyzing trace with hash -294936037, now seen corresponding path program 1 times [2023-11-19 07:50:35,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:35,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748079752] [2023-11-19 07:50:35,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:35,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:35,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:50:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:35,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:50:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:35,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:50:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:35,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:50:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:35,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:50:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:35,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:50:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:35,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-19 07:50:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:35,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-19 07:50:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:35,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-19 07:50:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:35,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-19 07:50:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:35,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-19 07:50:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:35,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-19 07:50:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:35,762 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:50:35,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:35,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748079752] [2023-11-19 07:50:35,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748079752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:35,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:35,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:50:35,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931170448] [2023-11-19 07:50:35,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:35,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:50:35,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:35,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:50:35,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:50:35,766 INFO L87 Difference]: Start difference. First operand 918 states and 1518 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:50:38,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:38,139 INFO L93 Difference]: Finished difference Result 2374 states and 4016 transitions. [2023-11-19 07:50:38,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:50:38,140 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2023-11-19 07:50:38,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:38,153 INFO L225 Difference]: With dead ends: 2374 [2023-11-19 07:50:38,153 INFO L226 Difference]: Without dead ends: 1534 [2023-11-19 07:50:38,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:50:38,159 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 1449 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 1773 mSolverCounterSat, 489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 2262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 489 IncrementalHoareTripleChecker+Valid, 1773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:38,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 1055 Invalid, 2262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [489 Valid, 1773 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-19 07:50:38,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2023-11-19 07:50:38,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1333. [2023-11-19 07:50:38,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 1071 states have (on average 1.6311858076563959) internal successors, (1747), 1079 states have internal predecessors, (1747), 234 states have call successors, (234), 23 states have call predecessors, (234), 27 states have return successors, (265), 232 states have call predecessors, (265), 233 states have call successors, (265) [2023-11-19 07:50:38,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 2246 transitions. [2023-11-19 07:50:38,293 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 2246 transitions. Word has length 118 [2023-11-19 07:50:38,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:38,293 INFO L495 AbstractCegarLoop]: Abstraction has 1333 states and 2246 transitions. [2023-11-19 07:50:38,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:50:38,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 2246 transitions. [2023-11-19 07:50:38,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-19 07:50:38,303 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:38,304 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:38,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:50:38,304 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:38,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:38,305 INFO L85 PathProgramCache]: Analyzing trace with hash 7565295, now seen corresponding path program 1 times [2023-11-19 07:50:38,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:38,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436111811] [2023-11-19 07:50:38,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:38,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:38,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:50:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:38,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:50:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:38,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:50:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:38,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:50:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:38,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:50:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:38,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:50:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:38,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 07:50:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:38,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-19 07:50:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:38,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 07:50:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:38,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-19 07:50:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:38,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-19 07:50:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:38,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-19 07:50:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:38,437 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:50:38,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:38,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436111811] [2023-11-19 07:50:38,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436111811] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:38,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:38,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:50:38,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621123455] [2023-11-19 07:50:38,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:38,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:50:38,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:38,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:50:38,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:50:38,440 INFO L87 Difference]: Start difference. First operand 1333 states and 2246 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:50:40,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:40,697 INFO L93 Difference]: Finished difference Result 3413 states and 5829 transitions. [2023-11-19 07:50:40,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:50:40,698 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2023-11-19 07:50:40,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:40,718 INFO L225 Difference]: With dead ends: 3413 [2023-11-19 07:50:40,718 INFO L226 Difference]: Without dead ends: 2211 [2023-11-19 07:50:40,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:50:40,724 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 1451 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 2224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:40,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 1030 Invalid, 2224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-19 07:50:40,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2211 states. [2023-11-19 07:50:40,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2211 to 2010. [2023-11-19 07:50:40,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2010 states, 1629 states have (on average 1.638428483732351) internal successors, (2669), 1637 states have internal predecessors, (2669), 353 states have call successors, (353), 23 states have call predecessors, (353), 27 states have return successors, (384), 351 states have call predecessors, (384), 352 states have call successors, (384) [2023-11-19 07:50:40,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 3406 transitions. [2023-11-19 07:50:40,884 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 3406 transitions. Word has length 119 [2023-11-19 07:50:40,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:40,885 INFO L495 AbstractCegarLoop]: Abstraction has 2010 states and 3406 transitions. [2023-11-19 07:50:40,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:50:40,885 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 3406 transitions. [2023-11-19 07:50:40,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-19 07:50:40,898 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:40,898 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:40,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:50:40,899 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:40,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:40,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1246694157, now seen corresponding path program 1 times [2023-11-19 07:50:40,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:40,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009592432] [2023-11-19 07:50:40,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:40,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:40,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:50:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:40,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:50:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:40,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:50:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:40,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:50:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:40,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:50:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:40,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:50:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:41,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-19 07:50:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:41,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-19 07:50:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:41,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-19 07:50:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:41,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-19 07:50:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:41,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-19 07:50:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:41,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-19 07:50:41,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:41,023 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:50:41,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:41,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009592432] [2023-11-19 07:50:41,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009592432] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:41,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:41,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:50:41,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601630291] [2023-11-19 07:50:41,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:41,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:50:41,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:41,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:50:41,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:50:41,027 INFO L87 Difference]: Start difference. First operand 2010 states and 3406 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:50:43,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:43,400 INFO L93 Difference]: Finished difference Result 4998 states and 8608 transitions. [2023-11-19 07:50:43,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:50:43,401 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2023-11-19 07:50:43,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:43,429 INFO L225 Difference]: With dead ends: 4998 [2023-11-19 07:50:43,430 INFO L226 Difference]: Without dead ends: 3254 [2023-11-19 07:50:43,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:50:43,438 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 1450 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1692 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 2204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 1692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:43,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1469 Valid, 1022 Invalid, 2204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 1692 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-19 07:50:43,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2023-11-19 07:50:43,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 3053. [2023-11-19 07:50:43,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3053 states, 2510 states have (on average 1.6442231075697211) internal successors, (4127), 2518 states have internal predecessors, (4127), 515 states have call successors, (515), 23 states have call predecessors, (515), 27 states have return successors, (562), 513 states have call predecessors, (562), 514 states have call successors, (562) [2023-11-19 07:50:43,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 5204 transitions. [2023-11-19 07:50:43,687 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 5204 transitions. Word has length 120 [2023-11-19 07:50:43,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:43,688 INFO L495 AbstractCegarLoop]: Abstraction has 3053 states and 5204 transitions. [2023-11-19 07:50:43,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:50:43,688 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 5204 transitions. [2023-11-19 07:50:43,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-19 07:50:43,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:43,704 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:43,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:50:43,704 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:43,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:43,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1773974226, now seen corresponding path program 1 times [2023-11-19 07:50:43,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:43,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001520755] [2023-11-19 07:50:43,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:43,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:43,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:50:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:43,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:50:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:43,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:50:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:43,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:50:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:43,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:50:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:43,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:50:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:43,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-19 07:50:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:43,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-19 07:50:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:43,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-19 07:50:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:43,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-19 07:50:43,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:43,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-19 07:50:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:43,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-19 07:50:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:43,827 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:50:43,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:43,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001520755] [2023-11-19 07:50:43,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001520755] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:43,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:43,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:50:43,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977824937] [2023-11-19 07:50:43,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:43,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:50:43,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:43,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:50:43,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:50:43,830 INFO L87 Difference]: Start difference. First operand 3053 states and 5204 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:50:46,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:46,330 INFO L93 Difference]: Finished difference Result 7512 states and 13023 transitions. [2023-11-19 07:50:46,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:50:46,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 121 [2023-11-19 07:50:46,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:46,376 INFO L225 Difference]: With dead ends: 7512 [2023-11-19 07:50:46,376 INFO L226 Difference]: Without dead ends: 4944 [2023-11-19 07:50:46,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:50:46,390 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 1444 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 1730 mSolverCounterSat, 501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 2231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 1730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:46,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1462 Valid, 1024 Invalid, 2231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [501 Valid, 1730 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-19 07:50:46,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4944 states. [2023-11-19 07:50:46,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4944 to 4743. [2023-11-19 07:50:46,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4743 states, 3955 states have (on average 1.6482932996207333) internal successors, (6519), 3963 states have internal predecessors, (6519), 760 states have call successors, (760), 23 states have call predecessors, (760), 27 states have return successors, (833), 758 states have call predecessors, (833), 759 states have call successors, (833) [2023-11-19 07:50:46,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4743 states to 4743 states and 8112 transitions. [2023-11-19 07:50:46,753 INFO L78 Accepts]: Start accepts. Automaton has 4743 states and 8112 transitions. Word has length 121 [2023-11-19 07:50:46,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:46,753 INFO L495 AbstractCegarLoop]: Abstraction has 4743 states and 8112 transitions. [2023-11-19 07:50:46,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:50:46,754 INFO L276 IsEmpty]: Start isEmpty. Operand 4743 states and 8112 transitions. [2023-11-19 07:50:46,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-19 07:50:46,772 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:46,773 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:46,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 07:50:46,773 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:50:46,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:46,773 INFO L85 PathProgramCache]: Analyzing trace with hash -117131631, now seen corresponding path program 1 times [2023-11-19 07:50:46,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:46,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136720736] [2023-11-19 07:50:46,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:46,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:46,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-19 07:50:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:46,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-19 07:50:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:46,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-19 07:50:46,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:46,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:50:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:46,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:50:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:46,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:50:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:46,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-19 07:50:46,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:46,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-19 07:50:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:46,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-19 07:50:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:46,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-19 07:50:46,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:46,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-19 07:50:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:46,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-19 07:50:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:46,906 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:50:46,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:46,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136720736] [2023-11-19 07:50:46,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136720736] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:46,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:46,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:50:46,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802747506] [2023-11-19 07:50:46,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:46,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:50:46,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:46,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:50:46,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:50:46,919 INFO L87 Difference]: Start difference. First operand 4743 states and 8112 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12)