/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec0_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 09:30:55,320 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 09:30:55,395 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 09:30:55,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 09:30:55,399 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 09:30:55,420 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 09:30:55,421 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 09:30:55,422 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 09:30:55,422 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 09:30:55,425 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 09:30:55,425 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 09:30:55,426 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 09:30:55,426 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 09:30:55,427 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 09:30:55,427 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 09:30:55,427 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 09:30:55,428 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 09:30:55,428 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 09:30:55,428 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 09:30:55,428 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 09:30:55,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 09:30:55,429 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 09:30:55,429 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 09:30:55,429 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 09:30:55,429 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 09:30:55,429 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 09:30:55,429 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 09:30:55,430 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 09:30:55,430 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 09:30:55,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 09:30:55,431 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 09:30:55,431 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 09:30:55,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 09:30:55,431 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 09:30:55,431 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 09:30:55,431 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 09:30:55,432 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 09:30:55,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 09:30:55,432 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 09:30:55,432 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 09:30:55,432 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 09:30:55,432 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 09:30:55,432 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 09:30:55,433 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 09:30:55,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 09:30:55,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 09:30:55,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 09:30:55,656 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 09:30:55,657 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 09:30:55,657 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product27.cil.c [2023-12-21 09:30:56,670 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 09:30:56,937 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 09:30:56,952 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product27.cil.c [2023-12-21 09:30:56,967 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/024647ff6/e18466fc669c4c0cbe79cef16c8c7ec3/FLAG8705fac56 [2023-12-21 09:30:56,980 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/024647ff6/e18466fc669c4c0cbe79cef16c8c7ec3 [2023-12-21 09:30:56,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 09:30:56,982 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 09:30:56,983 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 09:30:56,983 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 09:30:56,989 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 09:30:56,989 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:30:56" (1/1) ... [2023-12-21 09:30:56,990 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45653f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:30:56, skipping insertion in model container [2023-12-21 09:30:56,990 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:30:56" (1/1) ... [2023-12-21 09:30:57,043 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 09:30:57,318 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product27.cil.c[28349,28362] [2023-12-21 09:30:57,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 09:30:57,429 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 09:30:57,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2023-12-21 09:30:57,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [281] [2023-12-21 09:30:57,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [314] [2023-12-21 09:30:57,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [332] [2023-12-21 09:30:57,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [370] [2023-12-21 09:30:57,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [736] [2023-12-21 09:30:57,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1148] [2023-12-21 09:30:57,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1246] [2023-12-21 09:30:57,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1255] [2023-12-21 09:30:57,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1571] [2023-12-21 09:30:57,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1941] [2023-12-21 09:30:57,495 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product27.cil.c[28349,28362] [2023-12-21 09:30:57,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 09:30:57,546 INFO L206 MainTranslator]: Completed translation [2023-12-21 09:30:57,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:30:57 WrapperNode [2023-12-21 09:30:57,547 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 09:30:57,548 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 09:30:57,548 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 09:30:57,548 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 09:30:57,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:30:57" (1/1) ... [2023-12-21 09:30:57,571 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:30:57" (1/1) ... [2023-12-21 09:30:57,623 INFO L138 Inliner]: procedures = 133, calls = 207, calls flagged for inlining = 65, calls inlined = 62, statements flattened = 1107 [2023-12-21 09:30:57,624 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 09:30:57,625 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 09:30:57,625 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 09:30:57,625 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 09:30:57,637 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:30:57" (1/1) ... [2023-12-21 09:30:57,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:30:57" (1/1) ... [2023-12-21 09:30:57,642 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:30:57" (1/1) ... [2023-12-21 09:30:57,661 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-12-21 09:30:57,661 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:30:57" (1/1) ... [2023-12-21 09:30:57,661 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:30:57" (1/1) ... [2023-12-21 09:30:57,674 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:30:57" (1/1) ... [2023-12-21 09:30:57,704 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:30:57" (1/1) ... [2023-12-21 09:30:57,707 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:30:57" (1/1) ... [2023-12-21 09:30:57,710 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:30:57" (1/1) ... [2023-12-21 09:30:57,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 09:30:57,716 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 09:30:57,716 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 09:30:57,716 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 09:30:57,717 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:30:57" (1/1) ... [2023-12-21 09:30:57,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 09:30:57,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:30:57,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-21 09:30:57,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-21 09:30:57,778 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-21 09:30:57,778 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-21 09:30:57,778 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-21 09:30:57,778 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-21 09:30:57,778 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-21 09:30:57,778 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-21 09:30:57,778 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-21 09:30:57,779 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-21 09:30:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-21 09:30:57,779 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-21 09:30:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-21 09:30:57,779 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-21 09:30:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-21 09:30:57,779 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-21 09:30:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-21 09:30:57,779 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-21 09:30:57,779 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-21 09:30:57,780 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-21 09:30:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-21 09:30:57,780 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-21 09:30:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-21 09:30:57,780 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-21 09:30:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-21 09:30:57,780 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-21 09:30:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 09:30:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-21 09:30:57,780 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-21 09:30:57,780 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-21 09:30:57,781 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-21 09:30:57,781 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-21 09:30:57,781 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-21 09:30:57,781 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-21 09:30:57,781 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-21 09:30:57,781 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-21 09:30:57,781 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-21 09:30:57,781 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-21 09:30:57,781 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-21 09:30:57,781 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-21 09:30:57,781 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-21 09:30:57,781 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-21 09:30:57,781 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-21 09:30:57,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 09:30:57,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 09:30:57,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 09:30:57,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 09:30:57,782 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-21 09:30:57,782 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-21 09:30:57,782 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-21 09:30:57,782 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-21 09:30:57,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 09:30:57,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 09:30:57,938 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 09:30:57,939 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 09:30:58,514 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 09:30:58,572 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 09:30:58,573 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 09:30:58,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:30:58 BoogieIcfgContainer [2023-12-21 09:30:58,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 09:30:58,575 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 09:30:58,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 09:30:58,578 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 09:30:58,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 09:30:56" (1/3) ... [2023-12-21 09:30:58,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496e8c47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:30:58, skipping insertion in model container [2023-12-21 09:30:58,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:30:57" (2/3) ... [2023-12-21 09:30:58,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496e8c47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:30:58, skipping insertion in model container [2023-12-21 09:30:58,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:30:58" (3/3) ... [2023-12-21 09:30:58,580 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product27.cil.c [2023-12-21 09:30:58,591 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 09:30:58,591 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 09:30:58,639 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 09:30:58,643 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;@72bcf012, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 09:30:58,643 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 09:30:58,647 INFO L276 IsEmpty]: Start isEmpty. Operand has 369 states, 287 states have (on average 1.6236933797909407) internal successors, (466), 290 states have internal predecessors, (466), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-21 09:30:58,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 09:30:58,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:30:58,663 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:30:58,663 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:30:58,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:30:58,699 INFO L85 PathProgramCache]: Analyzing trace with hash 989101264, now seen corresponding path program 1 times [2023-12-21 09:30:58,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:30:58,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421232596] [2023-12-21 09:30:58,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:30:58,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:30:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:30:59,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:30:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:30:59,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:30:59,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:30:59,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:30:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:30:59,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 09:30:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:30:59,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:30:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:30:59,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 09:30:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:30:59,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 09:30:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:30:59,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 09:30:59,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:30:59,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 09:30:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:30:59,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 09:30:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:30:59,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:30:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:30:59,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 09:30:59,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:30:59,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 09:30:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:30:59,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 09:30:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:30:59,326 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 09:30:59,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:30:59,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421232596] [2023-12-21 09:30:59,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421232596] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:30:59,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254601133] [2023-12-21 09:30:59,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:30:59,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:30:59,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:30:59,330 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 09:30:59,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 09:30:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:30:59,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 1085 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 09:30:59,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:30:59,633 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 09:30:59,633 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:30:59,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254601133] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:30:59,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:30:59,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-12-21 09:30:59,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659318345] [2023-12-21 09:30:59,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:30:59,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 09:30:59,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:30:59,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 09:30:59,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 09:30:59,670 INFO L87 Difference]: Start difference. First operand has 369 states, 287 states have (on average 1.6236933797909407) internal successors, (466), 290 states have internal predecessors, (466), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:30:59,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:30:59,746 INFO L93 Difference]: Finished difference Result 550 states and 856 transitions. [2023-12-21 09:30:59,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 09:30:59,752 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 107 [2023-12-21 09:30:59,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:30:59,766 INFO L225 Difference]: With dead ends: 550 [2023-12-21 09:30:59,766 INFO L226 Difference]: Without dead ends: 366 [2023-12-21 09:30:59,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 09:30:59,772 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:30:59,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 559 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 09:30:59,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-12-21 09:30:59,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2023-12-21 09:30:59,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 285 states have (on average 1.6105263157894736) internal successors, (459), 287 states have internal predecessors, (459), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2023-12-21 09:30:59,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 574 transitions. [2023-12-21 09:30:59,856 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 574 transitions. Word has length 107 [2023-12-21 09:30:59,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:30:59,857 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 574 transitions. [2023-12-21 09:30:59,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:30:59,858 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 574 transitions. [2023-12-21 09:30:59,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 09:30:59,863 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:30:59,863 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:30:59,874 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-21 09:31:00,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-21 09:31:00,065 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:31:00,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:31:00,065 INFO L85 PathProgramCache]: Analyzing trace with hash -480706340, now seen corresponding path program 1 times [2023-12-21 09:31:00,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:31:00,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678949528] [2023-12-21 09:31:00,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:00,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:31:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:00,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:31:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:00,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:31:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:00,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:31:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:00,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 09:31:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:00,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:31:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:00,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 09:31:00,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:00,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 09:31:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:00,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 09:31:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:00,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-21 09:31:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:00,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:31:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:00,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 09:31:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:00,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 09:31:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:00,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 09:31:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:00,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 09:31:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:00,342 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 09:31:00,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:31:00,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678949528] [2023-12-21 09:31:00,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678949528] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:31:00,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955643193] [2023-12-21 09:31:00,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:00,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:31:00,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:31:00,344 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 09:31:00,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 09:31:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:00,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 1086 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 09:31:00,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:31:00,613 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 09:31:00,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:31:00,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955643193] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:31:00,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:31:00,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-21 09:31:00,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267828273] [2023-12-21 09:31:00,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:31:00,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 09:31:00,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:31:00,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 09:31:00,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:31:00,616 INFO L87 Difference]: Start difference. First operand 366 states and 574 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:00,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:31:00,691 INFO L93 Difference]: Finished difference Result 546 states and 840 transitions. [2023-12-21 09:31:00,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 09:31:00,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 108 [2023-12-21 09:31:00,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:31:00,696 INFO L225 Difference]: With dead ends: 546 [2023-12-21 09:31:00,697 INFO L226 Difference]: Without dead ends: 368 [2023-12-21 09:31:00,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:31:00,702 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 0 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1111 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 [2023-12-21 09:31:00,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1111 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 09:31:00,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-12-21 09:31:00,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2023-12-21 09:31:00,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 287 states have (on average 1.6062717770034842) internal successors, (461), 289 states have internal predecessors, (461), 58 states have call successors, (58), 22 states have call predecessors, (58), 22 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2023-12-21 09:31:00,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 576 transitions. [2023-12-21 09:31:00,733 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 576 transitions. Word has length 108 [2023-12-21 09:31:00,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:31:00,735 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 576 transitions. [2023-12-21 09:31:00,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:00,737 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 576 transitions. [2023-12-21 09:31:00,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 09:31:00,746 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:31:00,746 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:31:00,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 09:31:00,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-21 09:31:00,954 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:31:00,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:31:00,955 INFO L85 PathProgramCache]: Analyzing trace with hash -227313656, now seen corresponding path program 1 times [2023-12-21 09:31:00,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:31:00,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505710362] [2023-12-21 09:31:00,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:00,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:31:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:31:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:31:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:31:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 09:31:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:31:01,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 09:31:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 09:31:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:31:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 09:31:01,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 09:31:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:31:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 09:31:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 09:31:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 09:31:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,164 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:31:01,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:31:01,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505710362] [2023-12-21 09:31:01,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505710362] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:31:01,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549588726] [2023-12-21 09:31:01,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:01,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:31:01,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:31:01,166 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 09:31:01,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 09:31:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 09:31:01,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:31:01,483 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-21 09:31:01,483 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:31:01,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549588726] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:31:01,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:31:01,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-21 09:31:01,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33079325] [2023-12-21 09:31:01,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:31:01,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 09:31:01,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:31:01,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 09:31:01,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:31:01,485 INFO L87 Difference]: Start difference. First operand 368 states and 576 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:01,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:31:01,579 INFO L93 Difference]: Finished difference Result 788 states and 1251 transitions. [2023-12-21 09:31:01,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 09:31:01,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2023-12-21 09:31:01,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:31:01,582 INFO L225 Difference]: With dead ends: 788 [2023-12-21 09:31:01,582 INFO L226 Difference]: Without dead ends: 442 [2023-12-21 09:31:01,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:31:01,585 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 136 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 09:31:01,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1079 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 09:31:01,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-12-21 09:31:01,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 437. [2023-12-21 09:31:01,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 342 states have (on average 1.6228070175438596) internal successors, (555), 344 states have internal predecessors, (555), 72 states have call successors, (72), 22 states have call predecessors, (72), 22 states have return successors, (71), 70 states have call predecessors, (71), 71 states have call successors, (71) [2023-12-21 09:31:01,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 698 transitions. [2023-12-21 09:31:01,636 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 698 transitions. Word has length 115 [2023-12-21 09:31:01,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:31:01,636 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 698 transitions. [2023-12-21 09:31:01,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:01,637 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 698 transitions. [2023-12-21 09:31:01,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 09:31:01,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:31:01,639 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:31:01,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 09:31:01,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:31:01,851 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:31:01,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:31:01,852 INFO L85 PathProgramCache]: Analyzing trace with hash -286695024, now seen corresponding path program 1 times [2023-12-21 09:31:01,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:31:01,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583402562] [2023-12-21 09:31:01,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:01,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:31:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:31:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:31:01,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:31:01,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 09:31:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:31:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 09:31:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 09:31:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:31:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 09:31:01,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 09:31:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 09:31:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 09:31:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 09:31:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 09:31:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:01,995 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:31:01,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:31:01,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583402562] [2023-12-21 09:31:01,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583402562] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:31:01,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015377889] [2023-12-21 09:31:01,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:01,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:31:01,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:31:02,014 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 09:31:02,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 09:31:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:02,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 1115 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 09:31:02,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:31:02,341 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-21 09:31:02,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:31:02,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015377889] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:31:02,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:31:02,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-21 09:31:02,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462343910] [2023-12-21 09:31:02,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:31:02,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 09:31:02,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:31:02,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 09:31:02,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 09:31:02,343 INFO L87 Difference]: Start difference. First operand 437 states and 698 transitions. Second operand has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 09:31:02,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:31:02,443 INFO L93 Difference]: Finished difference Result 869 states and 1390 transitions. [2023-12-21 09:31:02,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 09:31:02,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 116 [2023-12-21 09:31:02,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:31:02,446 INFO L225 Difference]: With dead ends: 869 [2023-12-21 09:31:02,446 INFO L226 Difference]: Without dead ends: 439 [2023-12-21 09:31:02,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:31:02,447 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 8 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2177 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 09:31:02,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2177 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 09:31:02,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2023-12-21 09:31:02,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2023-12-21 09:31:02,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 343 states have (on average 1.620991253644315) internal successors, (556), 346 states have internal predecessors, (556), 72 states have call successors, (72), 22 states have call predecessors, (72), 23 states have return successors, (73), 70 states have call predecessors, (73), 71 states have call successors, (73) [2023-12-21 09:31:02,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 701 transitions. [2023-12-21 09:31:02,496 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 701 transitions. Word has length 116 [2023-12-21 09:31:02,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:31:02,497 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 701 transitions. [2023-12-21 09:31:02,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 09:31:02,497 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 701 transitions. [2023-12-21 09:31:02,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 09:31:02,500 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:31:02,500 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:31:02,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 09:31:02,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:31:02,707 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:31:02,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:31:02,708 INFO L85 PathProgramCache]: Analyzing trace with hash 372826914, now seen corresponding path program 1 times [2023-12-21 09:31:02,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:31:02,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345976156] [2023-12-21 09:31:02,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:02,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:31:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:02,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:31:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:02,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:31:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:02,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:31:02,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:02,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:31:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:02,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-21 09:31:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:02,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 09:31:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:02,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 09:31:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:02,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 09:31:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:02,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 09:31:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:02,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 09:31:02,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:02,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 09:31:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:02,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 09:31:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:02,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 09:31:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:02,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 09:31:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:02,906 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 09:31:02,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:31:02,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345976156] [2023-12-21 09:31:02,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345976156] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:31:02,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713421627] [2023-12-21 09:31:02,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:02,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:31:02,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:31:02,908 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 09:31:02,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 09:31:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:03,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 1116 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 09:31:03,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:31:03,178 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-21 09:31:03,178 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:31:03,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713421627] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:31:03,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:31:03,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-21 09:31:03,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520245832] [2023-12-21 09:31:03,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:31:03,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 09:31:03,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:31:03,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 09:31:03,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-21 09:31:03,180 INFO L87 Difference]: Start difference. First operand 439 states and 701 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 09:31:03,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:31:03,263 INFO L93 Difference]: Finished difference Result 871 states and 1395 transitions. [2023-12-21 09:31:03,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 09:31:03,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 117 [2023-12-21 09:31:03,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:31:03,265 INFO L225 Difference]: With dead ends: 871 [2023-12-21 09:31:03,265 INFO L226 Difference]: Without dead ends: 441 [2023-12-21 09:31:03,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-21 09:31:03,267 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 8 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2163 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 09:31:03,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2163 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 09:31:03,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2023-12-21 09:31:03,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2023-12-21 09:31:03,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 344 states have (on average 1.619186046511628) internal successors, (557), 348 states have internal predecessors, (557), 72 states have call successors, (72), 22 states have call predecessors, (72), 24 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2023-12-21 09:31:03,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 707 transitions. [2023-12-21 09:31:03,280 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 707 transitions. Word has length 117 [2023-12-21 09:31:03,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:31:03,280 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 707 transitions. [2023-12-21 09:31:03,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 09:31:03,280 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 707 transitions. [2023-12-21 09:31:03,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 09:31:03,282 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:31:03,282 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:31:03,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-21 09:31:03,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:31:03,493 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:31:03,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:31:03,494 INFO L85 PathProgramCache]: Analyzing trace with hash 255168330, now seen corresponding path program 1 times [2023-12-21 09:31:03,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:31:03,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082347] [2023-12-21 09:31:03,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:03,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:31:03,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:03,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:31:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:03,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:31:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:03,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:31:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:03,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:31:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:03,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:31:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:03,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 09:31:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:03,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 09:31:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:03,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 09:31:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:03,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 09:31:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:03,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 09:31:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:03,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 09:31:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:03,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 09:31:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:03,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 09:31:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:03,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 09:31:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:03,628 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:31:03,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:31:03,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082347] [2023-12-21 09:31:03,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082347] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:31:03,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:31:03,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 09:31:03,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301415553] [2023-12-21 09:31:03,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:31:03,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 09:31:03,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:31:03,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 09:31:03,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 09:31:03,630 INFO L87 Difference]: Start difference. First operand 441 states and 707 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 09:31:05,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:31:05,726 INFO L93 Difference]: Finished difference Result 1053 states and 1719 transitions. [2023-12-21 09:31:05,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 09:31:05,726 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 118 [2023-12-21 09:31:05,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:31:05,729 INFO L225 Difference]: With dead ends: 1053 [2023-12-21 09:31:05,729 INFO L226 Difference]: Without dead ends: 631 [2023-12-21 09:31:05,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-21 09:31:05,731 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 1283 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 3146 mSolverCounterSat, 406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 3552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 406 IncrementalHoareTripleChecker+Valid, 3146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-21 09:31:05,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 1242 Invalid, 3552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [406 Valid, 3146 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-21 09:31:05,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2023-12-21 09:31:05,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 441. [2023-12-21 09:31:05,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 344 states have (on average 1.619186046511628) internal successors, (557), 348 states have internal predecessors, (557), 72 states have call successors, (72), 22 states have call predecessors, (72), 24 states have return successors, (77), 70 states have call predecessors, (77), 71 states have call successors, (77) [2023-12-21 09:31:05,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 706 transitions. [2023-12-21 09:31:05,756 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 706 transitions. Word has length 118 [2023-12-21 09:31:05,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:31:05,756 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 706 transitions. [2023-12-21 09:31:05,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 09:31:05,756 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 706 transitions. [2023-12-21 09:31:05,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-21 09:31:05,758 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:31:05,758 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:31:05,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 09:31:05,758 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:31:05,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:31:05,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1397617410, now seen corresponding path program 2 times [2023-12-21 09:31:05,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:31:05,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936629416] [2023-12-21 09:31:05,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:05,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:31:05,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:05,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:31:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:05,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:31:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:05,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:31:05,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:05,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:31:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:05,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:31:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:05,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 09:31:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:05,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 09:31:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:05,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 09:31:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:05,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:31:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:05,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 09:31:05,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:05,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 09:31:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:05,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 09:31:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:05,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 09:31:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:05,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-21 09:31:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:05,887 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:31:05,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:31:05,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936629416] [2023-12-21 09:31:05,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936629416] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:31:05,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:31:05,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 09:31:05,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857972476] [2023-12-21 09:31:05,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:31:05,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 09:31:05,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:31:05,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 09:31:05,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 09:31:05,889 INFO L87 Difference]: Start difference. First operand 441 states and 706 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, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 09:31:07,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:31:07,907 INFO L93 Difference]: Finished difference Result 1055 states and 1722 transitions. [2023-12-21 09:31:07,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 09:31:07,908 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, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 119 [2023-12-21 09:31:07,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:31:07,911 INFO L225 Difference]: With dead ends: 1055 [2023-12-21 09:31:07,911 INFO L226 Difference]: Without dead ends: 633 [2023-12-21 09:31:07,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-21 09:31:07,913 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 1278 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 3153 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 1242 SdHoareTripleChecker+Invalid, 3562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 3153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-21 09:31:07,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 1242 Invalid, 3562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 3153 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-21 09:31:07,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2023-12-21 09:31:07,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 443. [2023-12-21 09:31:07,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 345 states have (on average 1.617391304347826) internal successors, (558), 350 states have internal predecessors, (558), 72 states have call successors, (72), 22 states have call predecessors, (72), 25 states have return successors, (79), 70 states have call predecessors, (79), 71 states have call successors, (79) [2023-12-21 09:31:07,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 709 transitions. [2023-12-21 09:31:07,932 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 709 transitions. Word has length 119 [2023-12-21 09:31:07,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:31:07,932 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 709 transitions. [2023-12-21 09:31:07,932 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, (17), 6 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-21 09:31:07,932 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 709 transitions. [2023-12-21 09:31:07,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-21 09:31:07,933 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:31:07,933 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:31:07,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 09:31:07,934 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:31:07,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:31:07,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1433618395, now seen corresponding path program 1 times [2023-12-21 09:31:07,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:31:07,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977971557] [2023-12-21 09:31:07,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:07,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:31:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:08,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:31:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:08,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:31:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:08,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:31:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:08,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:31:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:08,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:31:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:08,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:31:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:08,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:31:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:08,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-21 09:31:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:08,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 09:31:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:08,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 09:31:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:08,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 09:31:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:08,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 09:31:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:08,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 09:31:08,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:08,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 09:31:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:08,152 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 09:31:08,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:31:08,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977971557] [2023-12-21 09:31:08,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977971557] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:31:08,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:31:08,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 09:31:08,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633897060] [2023-12-21 09:31:08,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:31:08,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 09:31:08,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:31:08,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 09:31:08,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-21 09:31:08,154 INFO L87 Difference]: Start difference. First operand 443 states and 709 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 09:31:10,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:31:10,583 INFO L93 Difference]: Finished difference Result 1053 states and 1717 transitions. [2023-12-21 09:31:10,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 09:31:10,584 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 120 [2023-12-21 09:31:10,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:31:10,588 INFO L225 Difference]: With dead ends: 1053 [2023-12-21 09:31:10,588 INFO L226 Difference]: Without dead ends: 633 [2023-12-21 09:31:10,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-21 09:31:10,591 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 1291 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 5158 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 5579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 5158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-21 09:31:10,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1292 Valid, 1718 Invalid, 5579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 5158 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-21 09:31:10,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2023-12-21 09:31:10,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 443. [2023-12-21 09:31:10,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 345 states have (on average 1.617391304347826) internal successors, (558), 350 states have internal predecessors, (558), 72 states have call successors, (72), 22 states have call predecessors, (72), 25 states have return successors, (78), 70 states have call predecessors, (78), 71 states have call successors, (78) [2023-12-21 09:31:10,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 708 transitions. [2023-12-21 09:31:10,617 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 708 transitions. Word has length 120 [2023-12-21 09:31:10,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:31:10,618 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 708 transitions. [2023-12-21 09:31:10,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 09:31:10,618 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 708 transitions. [2023-12-21 09:31:10,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 09:31:10,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:31:10,621 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:31:10,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 09:31:10,621 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:31:10,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:31:10,621 INFO L85 PathProgramCache]: Analyzing trace with hash 762730433, now seen corresponding path program 2 times [2023-12-21 09:31:10,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:31:10,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468595129] [2023-12-21 09:31:10,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:10,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:31:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:10,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:31:10,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:10,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:31:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:10,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:31:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:10,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:31:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:10,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:31:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:10,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:31:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:10,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:31:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:10,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 09:31:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:10,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 09:31:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:10,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:31:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:10,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 09:31:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:10,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 09:31:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:10,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 09:31:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:10,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 09:31:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:10,792 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 09:31:10,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:31:10,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468595129] [2023-12-21 09:31:10,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468595129] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:31:10,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:31:10,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 09:31:10,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172640230] [2023-12-21 09:31:10,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:31:10,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 09:31:10,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:31:10,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 09:31:10,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-21 09:31:10,794 INFO L87 Difference]: Start difference. First operand 443 states and 708 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, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 09:31:13,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:31:13,098 INFO L93 Difference]: Finished difference Result 1055 states and 1723 transitions. [2023-12-21 09:31:13,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 09:31:13,098 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, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 121 [2023-12-21 09:31:13,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:31:13,101 INFO L225 Difference]: With dead ends: 1055 [2023-12-21 09:31:13,101 INFO L226 Difference]: Without dead ends: 635 [2023-12-21 09:31:13,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-21 09:31:13,104 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 1286 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 5178 mSolverCounterSat, 417 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 5595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 5178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:31:13,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 1718 Invalid, 5595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 5178 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-21 09:31:13,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2023-12-21 09:31:13,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 445. [2023-12-21 09:31:13,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 346 states have (on average 1.615606936416185) internal successors, (559), 352 states have internal predecessors, (559), 72 states have call successors, (72), 22 states have call predecessors, (72), 26 states have return successors, (83), 70 states have call predecessors, (83), 71 states have call successors, (83) [2023-12-21 09:31:13,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 714 transitions. [2023-12-21 09:31:13,126 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 714 transitions. Word has length 121 [2023-12-21 09:31:13,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:31:13,127 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 714 transitions. [2023-12-21 09:31:13,127 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, (17), 6 states have call predecessors, (17), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-12-21 09:31:13,127 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 714 transitions. [2023-12-21 09:31:13,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 09:31:13,129 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:31:13,129 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:31:13,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 09:31:13,129 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:31:13,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:31:13,129 INFO L85 PathProgramCache]: Analyzing trace with hash -248005056, now seen corresponding path program 1 times [2023-12-21 09:31:13,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:31:13,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667866251] [2023-12-21 09:31:13,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:13,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:31:13,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:13,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:31:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:13,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:31:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:13,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:31:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:13,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:31:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:13,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:31:13,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:13,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:31:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:13,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 09:31:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:13,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 09:31:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:13,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 09:31:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:13,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 09:31:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:13,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 09:31:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:13,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 09:31:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:13,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 09:31:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:13,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 09:31:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:13,289 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-21 09:31:13,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:31:13,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667866251] [2023-12-21 09:31:13,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667866251] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:31:13,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438764339] [2023-12-21 09:31:13,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:13,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:31:13,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:31:13,290 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 09:31:13,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 09:31:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:13,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 1121 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 09:31:13,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:31:13,563 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 09:31:13,563 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 09:31:13,630 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 09:31:13,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438764339] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 09:31:13,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 09:31:13,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-12-21 09:31:13,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621890107] [2023-12-21 09:31:13,632 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 09:31:13,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 09:31:13,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:31:13,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 09:31:13,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-21 09:31:13,633 INFO L87 Difference]: Start difference. First operand 445 states and 714 transitions. Second operand has 15 states, 14 states have (on average 8.642857142857142) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (35), 6 states have call predecessors, (35), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2023-12-21 09:31:15,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:31:15,895 INFO L93 Difference]: Finished difference Result 1494 states and 2534 transitions. [2023-12-21 09:31:15,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 09:31:15,917 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.642857142857142) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (35), 6 states have call predecessors, (35), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 122 [2023-12-21 09:31:15,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:31:15,922 INFO L225 Difference]: With dead ends: 1494 [2023-12-21 09:31:15,923 INFO L226 Difference]: Without dead ends: 1075 [2023-12-21 09:31:15,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-12-21 09:31:15,925 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 2585 mSDsluCounter, 1768 mSDsCounter, 0 mSdLazyCounter, 5579 mSolverCounterSat, 800 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2605 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 6379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 800 IncrementalHoareTripleChecker+Valid, 5579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-21 09:31:15,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2605 Valid, 1945 Invalid, 6379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [800 Valid, 5579 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-21 09:31:15,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2023-12-21 09:31:16,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 870. [2023-12-21 09:31:16,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 692 states have (on average 1.657514450867052) internal successors, (1147), 698 states have internal predecessors, (1147), 151 states have call successors, (151), 22 states have call predecessors, (151), 26 states have return successors, (172), 149 states have call predecessors, (172), 150 states have call successors, (172) [2023-12-21 09:31:16,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1470 transitions. [2023-12-21 09:31:16,007 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1470 transitions. Word has length 122 [2023-12-21 09:31:16,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:31:16,007 INFO L495 AbstractCegarLoop]: Abstraction has 870 states and 1470 transitions. [2023-12-21 09:31:16,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.642857142857142) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (35), 6 states have call predecessors, (35), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2023-12-21 09:31:16,008 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1470 transitions. [2023-12-21 09:31:16,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-21 09:31:16,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:31:16,011 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:31:16,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-21 09:31:16,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:31:16,219 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:31:16,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:31:16,220 INFO L85 PathProgramCache]: Analyzing trace with hash 541204278, now seen corresponding path program 1 times [2023-12-21 09:31:16,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:31:16,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207936035] [2023-12-21 09:31:16,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:16,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:31:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:16,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:31:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:16,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:31:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:16,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:31:16,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:16,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:31:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:16,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:31:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:16,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:31:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:16,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 09:31:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:16,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 09:31:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:16,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 09:31:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:16,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 09:31:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:16,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 09:31:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:16,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 09:31:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:16,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 09:31:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:16,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 09:31:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:16,310 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 09:31:16,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:31:16,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207936035] [2023-12-21 09:31:16,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207936035] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:31:16,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:31:16,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:31:16,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442556473] [2023-12-21 09:31:16,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:31:16,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:31:16,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:31:16,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:31:16,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:31:16,312 INFO L87 Difference]: Start difference. First operand 870 states and 1470 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:17,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:31:17,448 INFO L93 Difference]: Finished difference Result 2269 states and 3923 transitions. [2023-12-21 09:31:17,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:31:17,448 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 126 [2023-12-21 09:31:17,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:31:17,455 INFO L225 Difference]: With dead ends: 2269 [2023-12-21 09:31:17,455 INFO L226 Difference]: Without dead ends: 1467 [2023-12-21 09:31:17,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:31:17,458 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 1405 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 480 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 2299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 480 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:31:17,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1423 Valid, 941 Invalid, 2299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [480 Valid, 1819 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 09:31:17,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2023-12-21 09:31:17,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1272. [2023-12-21 09:31:17,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1015 states have (on average 1.6689655172413793) internal successors, (1694), 1021 states have internal predecessors, (1694), 230 states have call successors, (230), 22 states have call predecessors, (230), 26 states have return successors, (261), 228 states have call predecessors, (261), 229 states have call successors, (261) [2023-12-21 09:31:17,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 2185 transitions. [2023-12-21 09:31:17,498 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 2185 transitions. Word has length 126 [2023-12-21 09:31:17,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:31:17,498 INFO L495 AbstractCegarLoop]: Abstraction has 1272 states and 2185 transitions. [2023-12-21 09:31:17,499 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:17,499 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 2185 transitions. [2023-12-21 09:31:17,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-21 09:31:17,503 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:31:17,503 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:31:17,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 09:31:17,504 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:31:17,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:31:17,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1324019157, now seen corresponding path program 1 times [2023-12-21 09:31:17,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:31:17,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121448590] [2023-12-21 09:31:17,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:17,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:31:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:17,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:31:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:17,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:31:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:17,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:31:17,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:17,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:31:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:17,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:31:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:17,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:31:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:17,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 09:31:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:17,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 09:31:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:17,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 09:31:17,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:17,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 09:31:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:17,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 09:31:17,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:17,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 09:31:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:17,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 09:31:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:17,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 09:31:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:17,604 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 09:31:17,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:31:17,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121448590] [2023-12-21 09:31:17,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121448590] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:31:17,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:31:17,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:31:17,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083956820] [2023-12-21 09:31:17,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:31:17,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:31:17,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:31:17,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:31:17,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:31:17,605 INFO L87 Difference]: Start difference. First operand 1272 states and 2185 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:19,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:31:19,125 INFO L93 Difference]: Finished difference Result 3272 states and 5700 transitions. [2023-12-21 09:31:19,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:31:19,126 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 127 [2023-12-21 09:31:19,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:31:19,135 INFO L225 Difference]: With dead ends: 3272 [2023-12-21 09:31:19,136 INFO L226 Difference]: Without dead ends: 2118 [2023-12-21 09:31:19,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:31:19,140 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 1403 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 1823 mSolverCounterSat, 479 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1421 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 2302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 479 IncrementalHoareTripleChecker+Valid, 1823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:31:19,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1421 Valid, 917 Invalid, 2302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [479 Valid, 1823 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 09:31:19,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2023-12-21 09:31:19,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1923. [2023-12-21 09:31:19,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1923 states, 1547 states have (on average 1.6742081447963801) internal successors, (2590), 1553 states have internal predecessors, (2590), 349 states have call successors, (349), 22 states have call predecessors, (349), 26 states have return successors, (380), 347 states have call predecessors, (380), 348 states have call successors, (380) [2023-12-21 09:31:19,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 3319 transitions. [2023-12-21 09:31:19,214 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 3319 transitions. Word has length 127 [2023-12-21 09:31:19,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:31:19,214 INFO L495 AbstractCegarLoop]: Abstraction has 1923 states and 3319 transitions. [2023-12-21 09:31:19,215 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:19,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 3319 transitions. [2023-12-21 09:31:19,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-21 09:31:19,223 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:31:19,223 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:31:19,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 09:31:19,223 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:31:19,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:31:19,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1346962232, now seen corresponding path program 1 times [2023-12-21 09:31:19,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:31:19,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262444470] [2023-12-21 09:31:19,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:19,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:31:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:19,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:31:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:19,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:31:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:19,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:31:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:19,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:31:19,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:19,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:31:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:19,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:31:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:19,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 09:31:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:19,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 09:31:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:19,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 09:31:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:19,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 09:31:19,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:19,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 09:31:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:19,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 09:31:19,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:19,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 09:31:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:19,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 09:31:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:19,315 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 09:31:19,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:31:19,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262444470] [2023-12-21 09:31:19,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262444470] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:31:19,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:31:19,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:31:19,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448071785] [2023-12-21 09:31:19,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:31:19,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:31:19,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:31:19,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:31:19,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:31:19,316 INFO L87 Difference]: Start difference. First operand 1923 states and 3319 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:20,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:31:20,471 INFO L93 Difference]: Finished difference Result 4796 states and 8418 transitions. [2023-12-21 09:31:20,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:31:20,477 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2023-12-21 09:31:20,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:31:20,496 INFO L225 Difference]: With dead ends: 4796 [2023-12-21 09:31:20,496 INFO L226 Difference]: Without dead ends: 3119 [2023-12-21 09:31:20,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:31:20,504 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1404 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 1779 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 2255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 1779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:31:20,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1423 Valid, 908 Invalid, 2255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 1779 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-21 09:31:20,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3119 states. [2023-12-21 09:31:20,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3119 to 2924. [2023-12-21 09:31:20,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2924 states, 2386 states have (on average 1.6789606035205364) internal successors, (4006), 2392 states have internal predecessors, (4006), 511 states have call successors, (511), 22 states have call predecessors, (511), 26 states have return successors, (558), 509 states have call predecessors, (558), 510 states have call successors, (558) [2023-12-21 09:31:20,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2924 states to 2924 states and 5075 transitions. [2023-12-21 09:31:20,613 INFO L78 Accepts]: Start accepts. Automaton has 2924 states and 5075 transitions. Word has length 128 [2023-12-21 09:31:20,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:31:20,613 INFO L495 AbstractCegarLoop]: Abstraction has 2924 states and 5075 transitions. [2023-12-21 09:31:20,613 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:20,613 INFO L276 IsEmpty]: Start isEmpty. Operand 2924 states and 5075 transitions. [2023-12-21 09:31:20,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-21 09:31:20,624 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:31:20,624 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:31:20,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 09:31:20,625 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:31:20,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:31:20,625 INFO L85 PathProgramCache]: Analyzing trace with hash -675228406, now seen corresponding path program 1 times [2023-12-21 09:31:20,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:31:20,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22006135] [2023-12-21 09:31:20,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:20,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:31:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:20,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:31:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:20,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:31:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:20,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:31:20,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:20,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:31:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:20,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:31:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:20,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:31:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:20,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 09:31:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:20,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 09:31:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:20,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 09:31:20,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:20,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 09:31:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:20,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 09:31:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:20,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 09:31:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:20,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-21 09:31:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:20,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-21 09:31:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:20,712 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 09:31:20,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:31:20,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22006135] [2023-12-21 09:31:20,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22006135] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:31:20,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:31:20,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:31:20,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333838800] [2023-12-21 09:31:20,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:31:20,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:31:20,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:31:20,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:31:20,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:31:20,713 INFO L87 Difference]: Start difference. First operand 2924 states and 5075 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:22,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:31:22,173 INFO L93 Difference]: Finished difference Result 7208 states and 12731 transitions. [2023-12-21 09:31:22,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:31:22,173 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 129 [2023-12-21 09:31:22,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:31:22,219 INFO L225 Difference]: With dead ends: 7208 [2023-12-21 09:31:22,219 INFO L226 Difference]: Without dead ends: 4739 [2023-12-21 09:31:22,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:31:22,230 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1399 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 470 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 2264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 470 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 09:31:22,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 909 Invalid, 2264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [470 Valid, 1794 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 09:31:22,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4739 states. [2023-12-21 09:31:22,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4739 to 4544. [2023-12-21 09:31:22,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4544 states, 3761 states have (on average 1.6825312416910396) internal successors, (6328), 3767 states have internal predecessors, (6328), 756 states have call successors, (756), 22 states have call predecessors, (756), 26 states have return successors, (829), 754 states have call predecessors, (829), 755 states have call successors, (829) [2023-12-21 09:31:22,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4544 states to 4544 states and 7913 transitions. [2023-12-21 09:31:22,433 INFO L78 Accepts]: Start accepts. Automaton has 4544 states and 7913 transitions. Word has length 129 [2023-12-21 09:31:22,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:31:22,433 INFO L495 AbstractCegarLoop]: Abstraction has 4544 states and 7913 transitions. [2023-12-21 09:31:22,434 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:22,434 INFO L276 IsEmpty]: Start isEmpty. Operand 4544 states and 7913 transitions. [2023-12-21 09:31:22,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-21 09:31:22,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:31:22,448 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:31:22,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 09:31:22,448 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:31:22,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:31:22,448 INFO L85 PathProgramCache]: Analyzing trace with hash -271274644, now seen corresponding path program 1 times [2023-12-21 09:31:22,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:31:22,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031346439] [2023-12-21 09:31:22,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:22,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:31:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:22,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:31:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:22,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:31:22,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:22,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:31:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:22,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:31:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:22,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:31:22,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:22,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:31:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:22,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 09:31:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:22,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 09:31:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:22,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 09:31:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:22,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 09:31:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:22,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 09:31:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:22,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 09:31:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:22,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 09:31:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:22,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 09:31:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:22,521 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 09:31:22,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:31:22,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031346439] [2023-12-21 09:31:22,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031346439] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:31:22,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:31:22,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:31:22,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233137842] [2023-12-21 09:31:22,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:31:22,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:31:22,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:31:22,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:31:22,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:31:22,523 INFO L87 Difference]: Start difference. First operand 4544 states and 7913 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, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:23,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:31:23,785 INFO L93 Difference]: Finished difference Result 11285 states and 19984 transitions. [2023-12-21 09:31:23,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:31:23,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2023-12-21 09:31:23,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:31:23,826 INFO L225 Difference]: With dead ends: 11285 [2023-12-21 09:31:23,826 INFO L226 Difference]: Without dead ends: 7499 [2023-12-21 09:31:23,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:31:23,838 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 1398 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 1831 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 2316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 1831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-21 09:31:23,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1416 Valid, 947 Invalid, 2316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 1831 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-21 09:31:23,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7499 states. [2023-12-21 09:31:24,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7499 to 7304. [2023-12-21 09:31:24,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7304 states, 6028 states have (on average 1.6761778367617783) internal successors, (10104), 6034 states have internal predecessors, (10104), 1249 states have call successors, (1249), 22 states have call predecessors, (1249), 26 states have return successors, (1366), 1247 states have call predecessors, (1366), 1248 states have call successors, (1366) [2023-12-21 09:31:24,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7304 states to 7304 states and 12719 transitions. [2023-12-21 09:31:24,100 INFO L78 Accepts]: Start accepts. Automaton has 7304 states and 12719 transitions. Word has length 130 [2023-12-21 09:31:24,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:31:24,100 INFO L495 AbstractCegarLoop]: Abstraction has 7304 states and 12719 transitions. [2023-12-21 09:31:24,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:24,101 INFO L276 IsEmpty]: Start isEmpty. Operand 7304 states and 12719 transitions. [2023-12-21 09:31:24,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 09:31:24,120 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:31:24,120 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:31:24,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 09:31:24,120 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:31:24,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:31:24,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1846502298, now seen corresponding path program 1 times [2023-12-21 09:31:24,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:31:24,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010413090] [2023-12-21 09:31:24,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:24,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:31:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:24,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:31:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:24,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:31:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:24,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:31:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:24,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:31:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:24,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:31:24,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:24,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:31:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:24,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 09:31:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:24,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:31:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:24,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 09:31:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:24,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 09:31:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:24,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 09:31:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:24,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 09:31:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:24,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-21 09:31:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:24,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-21 09:31:24,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:24,193 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 09:31:24,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:31:24,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010413090] [2023-12-21 09:31:24,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010413090] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:31:24,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:31:24,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:31:24,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046931561] [2023-12-21 09:31:24,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:31:24,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:31:24,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:31:24,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:31:24,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:31:24,195 INFO L87 Difference]: Start difference. First operand 7304 states and 12719 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:25,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:31:25,710 INFO L93 Difference]: Finished difference Result 18644 states and 33004 transitions. [2023-12-21 09:31:25,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:31:25,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2023-12-21 09:31:25,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:31:25,803 INFO L225 Difference]: With dead ends: 18644 [2023-12-21 09:31:25,803 INFO L226 Difference]: Without dead ends: 12484 [2023-12-21 09:31:25,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:31:25,845 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 1396 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 2267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 09:31:25,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 911 Invalid, 2267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 09:31:25,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12484 states. [2023-12-21 09:31:26,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12484 to 12289. [2023-12-21 09:31:26,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12289 states, 10191 states have (on average 1.6757923658129723) internal successors, (17078), 10197 states have internal predecessors, (17078), 2071 states have call successors, (2071), 22 states have call predecessors, (2071), 26 states have return successors, (2266), 2069 states have call predecessors, (2266), 2070 states have call successors, (2266) [2023-12-21 09:31:26,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12289 states to 12289 states and 21415 transitions. [2023-12-21 09:31:26,311 INFO L78 Accepts]: Start accepts. Automaton has 12289 states and 21415 transitions. Word has length 131 [2023-12-21 09:31:26,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:31:26,311 INFO L495 AbstractCegarLoop]: Abstraction has 12289 states and 21415 transitions. [2023-12-21 09:31:26,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:26,312 INFO L276 IsEmpty]: Start isEmpty. Operand 12289 states and 21415 transitions. [2023-12-21 09:31:26,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-21 09:31:26,342 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:31:26,342 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:31:26,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 09:31:26,342 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:31:26,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:31:26,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1045583006, now seen corresponding path program 1 times [2023-12-21 09:31:26,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:31:26,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969626286] [2023-12-21 09:31:26,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:26,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:31:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:26,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:31:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:26,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:31:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:26,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:31:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:26,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:31:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:26,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:31:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:26,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:31:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:26,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 09:31:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:26,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 09:31:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:26,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:31:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:26,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 09:31:26,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:26,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 09:31:26,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:26,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 09:31:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:26,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 09:31:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:26,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-21 09:31:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:26,423 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 09:31:26,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:31:26,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969626286] [2023-12-21 09:31:26,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969626286] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:31:26,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:31:26,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:31:26,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648724855] [2023-12-21 09:31:26,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:31:26,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:31:26,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:31:26,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:31:26,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:31:26,425 INFO L87 Difference]: Start difference. First operand 12289 states and 21415 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:28,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:31:28,165 INFO L93 Difference]: Finished difference Result 29610 states and 52187 transitions. [2023-12-21 09:31:28,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:31:28,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2023-12-21 09:31:28,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:31:28,287 INFO L225 Difference]: With dead ends: 29610 [2023-12-21 09:31:28,287 INFO L226 Difference]: Without dead ends: 19444 [2023-12-21 09:31:28,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:31:28,306 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 1393 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 480 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 2284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 480 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:31:28,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 892 Invalid, 2284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [480 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 09:31:28,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19444 states. [2023-12-21 09:31:28,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19444 to 19249. [2023-12-21 09:31:28,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19249 states, 15948 states have (on average 1.6535615751191373) internal successors, (26371), 15954 states have internal predecessors, (26371), 3274 states have call successors, (3274), 22 states have call predecessors, (3274), 26 states have return successors, (3613), 3272 states have call predecessors, (3613), 3273 states have call successors, (3613) [2023-12-21 09:31:28,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19249 states to 19249 states and 33258 transitions. [2023-12-21 09:31:28,933 INFO L78 Accepts]: Start accepts. Automaton has 19249 states and 33258 transitions. Word has length 132 [2023-12-21 09:31:28,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:31:28,934 INFO L495 AbstractCegarLoop]: Abstraction has 19249 states and 33258 transitions. [2023-12-21 09:31:28,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:28,934 INFO L276 IsEmpty]: Start isEmpty. Operand 19249 states and 33258 transitions. [2023-12-21 09:31:28,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-21 09:31:28,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:31:28,959 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:31:28,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 09:31:28,959 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:31:28,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:31:28,960 INFO L85 PathProgramCache]: Analyzing trace with hash 729123365, now seen corresponding path program 1 times [2023-12-21 09:31:28,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:31:28,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519406979] [2023-12-21 09:31:28,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:28,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:31:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:29,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:31:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:29,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:31:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:29,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:31:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:29,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:31:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:29,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:31:29,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:29,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:31:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:29,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 09:31:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:29,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 09:31:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:29,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 09:31:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:29,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 09:31:29,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:29,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 09:31:29,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:29,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 09:31:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:29,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 09:31:29,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:29,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-21 09:31:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:29,044 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 09:31:29,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:31:29,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519406979] [2023-12-21 09:31:29,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519406979] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:31:29,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:31:29,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:31:29,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433448320] [2023-12-21 09:31:29,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:31:29,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:31:29,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:31:29,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:31:29,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:31:29,047 INFO L87 Difference]: Start difference. First operand 19249 states and 33258 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:31,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:31:31,011 INFO L93 Difference]: Finished difference Result 51051 states and 89720 transitions. [2023-12-21 09:31:31,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:31:31,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2023-12-21 09:31:31,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:31:31,313 INFO L225 Difference]: With dead ends: 51051 [2023-12-21 09:31:31,313 INFO L226 Difference]: Without dead ends: 34573 [2023-12-21 09:31:31,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:31:31,342 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1391 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1409 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 2272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 09:31:31,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1409 Valid, 910 Invalid, 2272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 09:31:31,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34573 states. [2023-12-21 09:31:32,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34573 to 34378. [2023-12-21 09:31:32,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34378 states, 28627 states have (on average 1.6507492926258427) internal successors, (47256), 28633 states have internal predecessors, (47256), 5724 states have call successors, (5724), 22 states have call predecessors, (5724), 26 states have return successors, (6337), 5722 states have call predecessors, (6337), 5723 states have call successors, (6337) [2023-12-21 09:31:32,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34378 states to 34378 states and 59317 transitions. [2023-12-21 09:31:32,590 INFO L78 Accepts]: Start accepts. Automaton has 34378 states and 59317 transitions. Word has length 133 [2023-12-21 09:31:32,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:31:32,590 INFO L495 AbstractCegarLoop]: Abstraction has 34378 states and 59317 transitions. [2023-12-21 09:31:32,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:32,591 INFO L276 IsEmpty]: Start isEmpty. Operand 34378 states and 59317 transitions. [2023-12-21 09:31:32,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-21 09:31:32,624 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:31:32,624 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:31:32,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 09:31:32,625 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:31:32,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:31:32,625 INFO L85 PathProgramCache]: Analyzing trace with hash -50786780, now seen corresponding path program 1 times [2023-12-21 09:31:32,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:31:32,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470728547] [2023-12-21 09:31:32,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:32,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:31:32,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:32,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:31:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:32,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:31:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:32,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:31:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:32,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:31:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:32,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:31:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:32,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:31:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:32,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 09:31:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:32,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 09:31:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:32,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 09:31:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:32,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 09:31:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:32,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 09:31:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:32,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 09:31:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:32,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 09:31:32,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:32,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 09:31:32,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:32,697 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 09:31:32,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:31:32,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470728547] [2023-12-21 09:31:32,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470728547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:31:32,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:31:32,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:31:32,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532613546] [2023-12-21 09:31:32,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:31:32,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:31:32,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:31:32,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:31:32,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:31:32,698 INFO L87 Difference]: Start difference. First operand 34378 states and 59317 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:35,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:31:35,623 INFO L93 Difference]: Finished difference Result 93933 states and 164314 transitions. [2023-12-21 09:31:35,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:31:35,624 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2023-12-21 09:31:35,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:31:35,843 INFO L225 Difference]: With dead ends: 93933 [2023-12-21 09:31:35,843 INFO L226 Difference]: Without dead ends: 63249 [2023-12-21 09:31:36,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:31:36,006 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 1392 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 1786 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 2271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 1786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-21 09:31:36,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 920 Invalid, 2271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 1786 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-21 09:31:36,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63249 states. [2023-12-21 09:31:37,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63249 to 63054. [2023-12-21 09:31:37,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63054 states, 52790 states have (on average 1.6470543663572645) internal successors, (86948), 52796 states have internal predecessors, (86948), 10237 states have call successors, (10237), 22 states have call predecessors, (10237), 26 states have return successors, (11382), 10235 states have call predecessors, (11382), 10236 states have call successors, (11382) [2023-12-21 09:31:38,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63054 states to 63054 states and 108567 transitions. [2023-12-21 09:31:38,312 INFO L78 Accepts]: Start accepts. Automaton has 63054 states and 108567 transitions. Word has length 134 [2023-12-21 09:31:38,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:31:38,313 INFO L495 AbstractCegarLoop]: Abstraction has 63054 states and 108567 transitions. [2023-12-21 09:31:38,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:38,313 INFO L276 IsEmpty]: Start isEmpty. Operand 63054 states and 108567 transitions. [2023-12-21 09:31:38,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-21 09:31:38,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:31:38,352 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:31:38,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 09:31:38,352 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:31:38,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:31:38,353 INFO L85 PathProgramCache]: Analyzing trace with hash -27140187, now seen corresponding path program 1 times [2023-12-21 09:31:38,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:31:38,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218459709] [2023-12-21 09:31:38,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:38,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:31:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:38,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:31:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:38,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:31:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:38,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:31:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:38,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:31:38,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:38,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:31:38,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:38,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:31:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:38,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 09:31:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:38,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 09:31:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:38,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 09:31:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:38,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 09:31:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:38,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 09:31:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:38,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 09:31:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:38,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-21 09:31:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:38,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-21 09:31:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:38,676 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 09:31:38,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:31:38,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218459709] [2023-12-21 09:31:38,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218459709] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:31:38,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:31:38,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:31:38,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494914643] [2023-12-21 09:31:38,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:31:38,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:31:38,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:31:38,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:31:38,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:31:38,678 INFO L87 Difference]: Start difference. First operand 63054 states and 108567 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:42,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:31:42,284 INFO L93 Difference]: Finished difference Result 118313 states and 207466 transitions. [2023-12-21 09:31:42,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:31:42,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2023-12-21 09:31:42,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:31:42,874 INFO L225 Difference]: With dead ends: 118313 [2023-12-21 09:31:42,874 INFO L226 Difference]: Without dead ends: 118135 [2023-12-21 09:31:42,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:31:42,908 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1388 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1781 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 2264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 1781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:31:42,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 910 Invalid, 2264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 1781 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 09:31:42,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118135 states. [2023-12-21 09:31:46,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118135 to 117940. [2023-12-21 09:31:46,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117940 states, 99308 states have (on average 1.6423450275909293) internal successors, (163098), 99314 states have internal predecessors, (163098), 18605 states have call successors, (18605), 22 states have call predecessors, (18605), 26 states have return successors, (20796), 18603 states have call predecessors, (20796), 18604 states have call successors, (20796) [2023-12-21 09:31:47,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117940 states to 117940 states and 202499 transitions. [2023-12-21 09:31:47,443 INFO L78 Accepts]: Start accepts. Automaton has 117940 states and 202499 transitions. Word has length 135 [2023-12-21 09:31:47,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:31:47,443 INFO L495 AbstractCegarLoop]: Abstraction has 117940 states and 202499 transitions. [2023-12-21 09:31:47,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-21 09:31:47,443 INFO L276 IsEmpty]: Start isEmpty. Operand 117940 states and 202499 transitions. [2023-12-21 09:31:47,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-21 09:31:47,497 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:31:47,497 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:31:47,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 09:31:47,497 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:31:47,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:31:47,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1490950171, now seen corresponding path program 1 times [2023-12-21 09:31:47,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:31:47,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325629956] [2023-12-21 09:31:47,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:47,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:31:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:47,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:31:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:47,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:31:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:47,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:31:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:47,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:31:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:47,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:31:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:47,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:31:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:47,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:31:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:47,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:31:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:47,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 09:31:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:47,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 09:31:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:47,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 09:31:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:47,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 09:31:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:47,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 09:31:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:47,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 09:31:47,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:47,683 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-21 09:31:47,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:31:47,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325629956] [2023-12-21 09:31:47,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325629956] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:31:47,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102696785] [2023-12-21 09:31:47,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:31:47,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:31:47,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:31:47,697 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 09:31:47,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 09:31:47,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:31:47,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 1160 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-21 09:31:47,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:31:48,088 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-21 09:31:48,088 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 09:31:48,304 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 09:31:48,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102696785] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 09:31:48,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 09:31:48,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 22 [2023-12-21 09:31:48,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828529982] [2023-12-21 09:31:48,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 09:31:48,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-21 09:31:48,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:31:48,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-21 09:31:48,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2023-12-21 09:31:48,306 INFO L87 Difference]: Start difference. First operand 117940 states and 202499 transitions. Second operand has 22 states, 21 states have (on average 10.428571428571429) internal successors, (219), 17 states have internal predecessors, (219), 4 states have call successors, (47), 10 states have call predecessors, (47), 8 states have return successors, (38), 5 states have call predecessors, (38), 4 states have call successors, (38) [2023-12-21 09:31:58,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:31:58,373 INFO L93 Difference]: Finished difference Result 236490 states and 416969 transitions. [2023-12-21 09:31:58,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-12-21 09:31:58,373 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.428571428571429) internal successors, (219), 17 states have internal predecessors, (219), 4 states have call successors, (47), 10 states have call predecessors, (47), 8 states have return successors, (38), 5 states have call predecessors, (38), 4 states have call successors, (38) Word has length 136 [2023-12-21 09:31:58,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:31:59,523 INFO L225 Difference]: With dead ends: 236490 [2023-12-21 09:31:59,524 INFO L226 Difference]: Without dead ends: 236317 [2023-12-21 09:31:59,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 823 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=714, Invalid=3068, Unknown=0, NotChecked=0, Total=3782 [2023-12-21 09:31:59,606 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 4787 mSDsluCounter, 2237 mSDsCounter, 0 mSdLazyCounter, 9766 mSolverCounterSat, 1464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4816 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 11230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1464 IncrementalHoareTripleChecker+Valid, 9766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-21 09:31:59,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4816 Valid, 2409 Invalid, 11230 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1464 Valid, 9766 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-21 09:31:59,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236317 states. [2023-12-21 09:32:06,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236317 to 235885. [2023-12-21 09:32:07,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235885 states, 198623 states have (on average 1.6423374936437372) internal successors, (326206), 198632 states have internal predecessors, (326206), 37208 states have call successors, (37208), 46 states have call predecessors, (37208), 53 states have return successors, (43770), 37206 states have call predecessors, (43770), 37206 states have call successors, (43770) [2023-12-21 09:32:07,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235885 states to 235885 states and 407184 transitions. [2023-12-21 09:32:07,780 INFO L78 Accepts]: Start accepts. Automaton has 235885 states and 407184 transitions. Word has length 136 [2023-12-21 09:32:07,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:32:07,781 INFO L495 AbstractCegarLoop]: Abstraction has 235885 states and 407184 transitions. [2023-12-21 09:32:07,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.428571428571429) internal successors, (219), 17 states have internal predecessors, (219), 4 states have call successors, (47), 10 states have call predecessors, (47), 8 states have return successors, (38), 5 states have call predecessors, (38), 4 states have call successors, (38) [2023-12-21 09:32:07,781 INFO L276 IsEmpty]: Start isEmpty. Operand 235885 states and 407184 transitions. [2023-12-21 09:32:07,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-21 09:32:07,927 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:32:07,927 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:32:07,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-21 09:32:08,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:32:08,134 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:32:08,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:32:08,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1842109738, now seen corresponding path program 1 times [2023-12-21 09:32:08,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:32:08,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276614242] [2023-12-21 09:32:08,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:32:08,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:32:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:32:08,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:32:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:32:08,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:32:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:32:08,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:32:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:32:08,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:32:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:32:08,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:32:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:32:08,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:32:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:32:08,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:32:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:32:08,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:32:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:32:08,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 09:32:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:32:08,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 09:32:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:32:08,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 09:32:08,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:32:08,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 09:32:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:32:08,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-21 09:32:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:32:08,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-21 09:32:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:32:08,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-21 09:32:08,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:32:08,309 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 09:32:08,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:32:08,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276614242] [2023-12-21 09:32:08,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276614242] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:32:08,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:32:08,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-21 09:32:08,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327507806] [2023-12-21 09:32:08,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:32:08,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 09:32:08,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:32:08,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 09:32:08,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-21 09:32:08,310 INFO L87 Difference]: Start difference. First operand 235885 states and 407184 transitions. Second operand has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (18), 8 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-12-21 09:32:16,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:32:16,977 INFO L93 Difference]: Finished difference Result 236698 states and 415086 transitions. [2023-12-21 09:32:16,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 09:32:16,978 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (18), 8 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 144 [2023-12-21 09:32:16,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:32:18,059 INFO L225 Difference]: With dead ends: 236698 [2023-12-21 09:32:18,059 INFO L226 Difference]: Without dead ends: 236340 [2023-12-21 09:32:18,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2023-12-21 09:32:18,131 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 1894 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 3759 mSolverCounterSat, 680 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1912 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 4439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 680 IncrementalHoareTripleChecker+Valid, 3759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-21 09:32:18,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1912 Valid, 1340 Invalid, 4439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [680 Valid, 3759 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-21 09:32:18,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236340 states. [2023-12-21 09:32:26,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236340 to 235935. [2023-12-21 09:32:26,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235935 states, 198655 states have (on average 1.6422893961893736) internal successors, (326249), 198666 states have internal predecessors, (326249), 37226 states have call successors, (37226), 48 states have call predecessors, (37226), 53 states have return successors, (43784), 37220 states have call predecessors, (43784), 37220 states have call successors, (43784)