/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 true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec7_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 23:24:46,885 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 23:24:46,964 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 23:24:46,969 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 23:24:46,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 23:24:46,997 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 23:24:46,997 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 23:24:46,998 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 23:24:46,998 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 23:24:47,002 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 23:24:47,002 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 23:24:47,003 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 23:24:47,003 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 23:24:47,004 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 23:24:47,005 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 23:24:47,005 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 23:24:47,005 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 23:24:47,005 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 23:24:47,005 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 23:24:47,006 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 23:24:47,006 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 23:24:47,006 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 23:24:47,007 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 23:24:47,007 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 23:24:47,007 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 23:24:47,007 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 23:24:47,007 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 23:24:47,008 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 23:24:47,008 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 23:24:47,008 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 23:24:47,009 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 23:24:47,010 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 23:24:47,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:24:47,010 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 23:24:47,010 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 23:24:47,010 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 23:24:47,011 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 23:24:47,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 23:24:47,011 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 23:24:47,011 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 23:24:47,011 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 23:24:47,012 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 23:24:47,012 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 23:24:47,012 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 23:24:47,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 23:24:47,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 23:24:47,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 23:24:47,273 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 23:24:47,274 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 23:24:47,274 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product27.cil.c [2023-12-19 23:24:48,402 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 23:24:48,678 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 23:24:48,679 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product27.cil.c [2023-12-19 23:24:48,706 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e8cc21da/969d3b289c254b3f87472ddf87c254fd/FLAG82048ecdb [2023-12-19 23:24:48,717 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e8cc21da/969d3b289c254b3f87472ddf87c254fd [2023-12-19 23:24:48,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 23:24:48,719 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 23:24:48,720 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 23:24:48,721 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 23:24:48,725 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 23:24:48,725 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:24:48" (1/1) ... [2023-12-19 23:24:48,726 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f435a6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:24:48, skipping insertion in model container [2023-12-19 23:24:48,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:24:48" (1/1) ... [2023-12-19 23:24:48,810 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 23:24:49,090 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_spec7_product27.cil.c[14691,14704] [2023-12-19 23:24:49,288 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:24:49,307 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 23:24:49,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2023-12-19 23:24:49,319 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [281] [2023-12-19 23:24:49,319 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [685] [2023-12-19 23:24:49,319 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [702] [2023-12-19 23:24:49,320 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [711] [2023-12-19 23:24:49,320 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1114] [2023-12-19 23:24:49,320 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1426] [2023-12-19 23:24:49,321 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1461] [2023-12-19 23:24:49,321 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2521] [2023-12-19 23:24:49,321 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [2887] [2023-12-19 23:24:49,321 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2905] [2023-12-19 23:24:49,350 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_spec7_product27.cil.c[14691,14704] [2023-12-19 23:24:49,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:24:49,449 INFO L206 MainTranslator]: Completed translation [2023-12-19 23:24:49,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:24:49 WrapperNode [2023-12-19 23:24:49,450 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 23:24:49,451 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 23:24:49,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 23:24:49,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 23:24:49,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:24:49" (1/1) ... [2023-12-19 23:24:49,502 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:24:49" (1/1) ... [2023-12-19 23:24:49,553 INFO L138 Inliner]: procedures = 133, calls = 207, calls flagged for inlining = 65, calls inlined = 62, statements flattened = 1106 [2023-12-19 23:24:49,554 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 23:24:49,555 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 23:24:49,555 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 23:24:49,555 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 23:24:49,568 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:24:49" (1/1) ... [2023-12-19 23:24:49,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:24:49" (1/1) ... [2023-12-19 23:24:49,575 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:24:49" (1/1) ... [2023-12-19 23:24:49,595 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]. [2023-12-19 23:24:49,595 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:24:49" (1/1) ... [2023-12-19 23:24:49,596 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:24:49" (1/1) ... [2023-12-19 23:24:49,613 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:24:49" (1/1) ... [2023-12-19 23:24:49,621 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:24:49" (1/1) ... [2023-12-19 23:24:49,626 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:24:49" (1/1) ... [2023-12-19 23:24:49,630 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:24:49" (1/1) ... [2023-12-19 23:24:49,639 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 23:24:49,640 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 23:24:49,641 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 23:24:49,641 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 23:24:49,641 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:24:49" (1/1) ... [2023-12-19 23:24:49,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:24:49,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:24:49,691 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) [2023-12-19 23:24:49,700 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 [2023-12-19 23:24:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-19 23:24:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-19 23:24:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-19 23:24:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-19 23:24:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-19 23:24:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-19 23:24:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-19 23:24:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-19 23:24:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-19 23:24:49,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-19 23:24:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-19 23:24:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-19 23:24:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-19 23:24:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-19 23:24:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-19 23:24:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-19 23:24:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-19 23:24:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-19 23:24:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-19 23:24:49,720 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-19 23:24:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-19 23:24:49,721 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-19 23:24:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-19 23:24:49,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-19 23:24:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 23:24:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-19 23:24:49,721 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-19 23:24:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-19 23:24:49,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-19 23:24:49,721 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-19 23:24:49,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-19 23:24:49,722 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-19 23:24:49,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-19 23:24:49,722 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-19 23:24:49,722 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-19 23:24:49,722 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-19 23:24:49,722 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-19 23:24:49,722 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-19 23:24:49,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-19 23:24:49,722 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-19 23:24:49,722 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-19 23:24:49,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 23:24:49,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 23:24:49,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-19 23:24:49,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-19 23:24:49,723 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-19 23:24:49,723 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-19 23:24:49,723 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-19 23:24:49,723 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-19 23:24:49,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 23:24:49,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 23:24:49,905 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 23:24:49,907 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 23:24:50,630 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 23:24:50,722 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 23:24:50,723 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 23:24:50,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:24:50 BoogieIcfgContainer [2023-12-19 23:24:50,723 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 23:24:50,725 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 23:24:50,725 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 23:24:50,729 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 23:24:50,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:24:48" (1/3) ... [2023-12-19 23:24:50,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eddd851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:24:50, skipping insertion in model container [2023-12-19 23:24:50,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:24:49" (2/3) ... [2023-12-19 23:24:50,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eddd851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:24:50, skipping insertion in model container [2023-12-19 23:24:50,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:24:50" (3/3) ... [2023-12-19 23:24:50,731 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product27.cil.c [2023-12-19 23:24:50,746 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 23:24:50,746 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 23:24:50,800 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 23:24:50,805 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;@2ea518d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 23:24:50,805 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 23:24:50,811 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) [2023-12-19 23:24:50,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-19 23:24:50,833 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:24:50,834 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:24:50,836 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:24:50,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:24:50,840 INFO L85 PathProgramCache]: Analyzing trace with hash 608469615, now seen corresponding path program 1 times [2023-12-19 23:24:50,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:24:50,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643886990] [2023-12-19 23:24:50,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:24:50,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:24:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:51,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:24:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:51,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:24:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:51,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:24:51,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:51,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 23:24:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:51,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 23:24:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:51,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 23:24:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:51,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-19 23:24:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:51,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 23:24:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:51,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 23:24:51,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:51,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 23:24:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:51,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 23:24:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:51,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-19 23:24:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:51,494 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 23:24:51,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:24:51,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643886990] [2023-12-19 23:24:51,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643886990] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:24:51,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406437791] [2023-12-19 23:24:51,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:24:51,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:24:51,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:24:51,498 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) [2023-12-19 23:24:51,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 23:24:51,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:51,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 988 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 23:24:51,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:24:51,894 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-19 23:24:51,894 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:24:51,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406437791] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:24:51,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:24:51,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-12-19 23:24:51,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663281463] [2023-12-19 23:24:51,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:24:51,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 23:24:51,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:24:51,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 23:24:51,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:24:51,940 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 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:24:52,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:24:52,054 INFO L93 Difference]: Finished difference Result 550 states and 856 transitions. [2023-12-19 23:24:52,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 23:24:52,066 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 88 [2023-12-19 23:24:52,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:24:52,079 INFO L225 Difference]: With dead ends: 550 [2023-12-19 23:24:52,079 INFO L226 Difference]: Without dead ends: 366 [2023-12-19 23:24:52,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:24:52,087 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, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:24:52,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 559 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:24:52,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-12-19 23:24:52,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2023-12-19 23:24:52,143 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) [2023-12-19 23:24:52,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 574 transitions. [2023-12-19 23:24:52,151 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 574 transitions. Word has length 88 [2023-12-19 23:24:52,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:24:52,152 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 574 transitions. [2023-12-19 23:24:52,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:24:52,153 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 574 transitions. [2023-12-19 23:24:52,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-19 23:24:52,159 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:24:52,159 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:24:52,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 23:24:52,367 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 [2023-12-19 23:24:52,367 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:24:52,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:24:52,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1538703843, now seen corresponding path program 1 times [2023-12-19 23:24:52,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:24:52,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391220280] [2023-12-19 23:24:52,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:24:52,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:24:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:52,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:24:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:52,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:24:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:52,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:24:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:52,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 23:24:52,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:52,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 23:24:52,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:52,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 23:24:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:52,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-19 23:24:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:52,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-19 23:24:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:52,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-19 23:24:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:52,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:24:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:52,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 23:24:52,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:52,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 23:24:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:52,645 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-19 23:24:52,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:24:52,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391220280] [2023-12-19 23:24:52,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391220280] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:24:52,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154517768] [2023-12-19 23:24:52,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:24:52,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:24:52,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:24:52,647 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) [2023-12-19 23:24:52,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 23:24:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:52,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 989 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 23:24:52,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:24:52,976 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-19 23:24:52,977 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:24:52,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154517768] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:24:52,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:24:52,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-19 23:24:52,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171780213] [2023-12-19 23:24:52,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:24:52,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:24:52,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:24:52,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:24:52,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:24:52,981 INFO L87 Difference]: Start difference. First operand 366 states and 574 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:24:53,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:24:53,076 INFO L93 Difference]: Finished difference Result 546 states and 840 transitions. [2023-12-19 23:24:53,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:24:53,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 89 [2023-12-19 23:24:53,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:24:53,087 INFO L225 Difference]: With dead ends: 546 [2023-12-19 23:24:53,087 INFO L226 Difference]: Without dead ends: 368 [2023-12-19 23:24:53,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:24:53,092 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 [2023-12-19 23:24:53,092 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] [2023-12-19 23:24:53,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-12-19 23:24:53,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2023-12-19 23:24:53,131 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) [2023-12-19 23:24:53,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 576 transitions. [2023-12-19 23:24:53,137 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 576 transitions. Word has length 89 [2023-12-19 23:24:53,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:24:53,139 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 576 transitions. [2023-12-19 23:24:53,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:24:53,142 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 576 transitions. [2023-12-19 23:24:53,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-19 23:24:53,147 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:24:53,148 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:24:53,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 23:24:53,358 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 [2023-12-19 23:24:53,359 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:24:53,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:24:53,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1905614281, now seen corresponding path program 1 times [2023-12-19 23:24:53,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:24:53,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284285922] [2023-12-19 23:24:53,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:24:53,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:24:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:53,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:24:53,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:53,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:24:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:53,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:24:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:53,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 23:24:53,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:53,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 23:24:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:53,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 23:24:53,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:53,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 23:24:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:53,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 23:24:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:53,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 23:24:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:53,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 23:24:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:53,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 23:24:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:53,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 23:24:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:53,635 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-19 23:24:53,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:24:53,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284285922] [2023-12-19 23:24:53,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284285922] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:24:53,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077093119] [2023-12-19 23:24:53,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:24:53,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:24:53,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:24:53,639 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) [2023-12-19 23:24:53,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 23:24:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:53,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 23:24:53,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:24:53,928 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-19 23:24:53,928 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:24:53,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077093119] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:24:53,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:24:53,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-19 23:24:53,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180233439] [2023-12-19 23:24:53,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:24:53,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:24:53,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:24:53,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:24:53,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:24:53,933 INFO L87 Difference]: Start difference. First operand 368 states and 576 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:24:53,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:24:53,995 INFO L93 Difference]: Finished difference Result 788 states and 1251 transitions. [2023-12-19 23:24:53,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:24:53,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 96 [2023-12-19 23:24:53,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:24:53,999 INFO L225 Difference]: With dead ends: 788 [2023-12-19 23:24:53,999 INFO L226 Difference]: Without dead ends: 442 [2023-12-19 23:24:54,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:24:54,002 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 136 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:24:54,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1080 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:24:54,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-12-19 23:24:54,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 437. [2023-12-19 23:24:54,034 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) [2023-12-19 23:24:54,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 698 transitions. [2023-12-19 23:24:54,037 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 698 transitions. Word has length 96 [2023-12-19 23:24:54,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:24:54,037 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 698 transitions. [2023-12-19 23:24:54,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:24:54,038 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 698 transitions. [2023-12-19 23:24:54,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-19 23:24:54,043 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:24:54,043 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:24:54,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 23:24:54,251 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 [2023-12-19 23:24:54,252 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:24:54,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:24:54,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1462348369, now seen corresponding path program 1 times [2023-12-19 23:24:54,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:24:54,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717241212] [2023-12-19 23:24:54,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:24:54,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:24:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:54,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:24:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:54,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:24:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:54,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:24:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:54,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 23:24:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:54,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 23:24:54,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:54,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 23:24:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:54,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-19 23:24:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:54,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 23:24:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:54,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 23:24:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:54,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 23:24:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:54,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-19 23:24:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:54,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 23:24:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:54,471 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-19 23:24:54,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:24:54,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717241212] [2023-12-19 23:24:54,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717241212] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:24:54,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121970254] [2023-12-19 23:24:54,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:24:54,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:24:54,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:24:54,477 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) [2023-12-19 23:24:54,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 23:24:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:54,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-19 23:24:54,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:24:54,802 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-19 23:24:54,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:24:54,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121970254] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:24:54,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:24:54,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-19 23:24:54,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875918926] [2023-12-19 23:24:54,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:24:54,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:24:54,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:24:54,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:24:54,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-19 23:24:54,806 INFO L87 Difference]: Start difference. First operand 437 states and 698 transitions. Second operand has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-19 23:24:54,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:24:54,910 INFO L93 Difference]: Finished difference Result 869 states and 1390 transitions. [2023-12-19 23:24:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:24:54,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 97 [2023-12-19 23:24:54,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:24:54,914 INFO L225 Difference]: With dead ends: 869 [2023-12-19 23:24:54,914 INFO L226 Difference]: Without dead ends: 439 [2023-12-19 23:24:54,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:24:54,917 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 8 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-12-19 23:24:54,917 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] [2023-12-19 23:24:54,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2023-12-19 23:24:54,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2023-12-19 23:24:54,931 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) [2023-12-19 23:24:54,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 701 transitions. [2023-12-19 23:24:54,934 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 701 transitions. Word has length 97 [2023-12-19 23:24:54,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:24:54,935 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 701 transitions. [2023-12-19 23:24:54,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.75) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-19 23:24:54,935 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 701 transitions. [2023-12-19 23:24:54,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-19 23:24:54,937 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:24:54,937 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:24:54,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 23:24:55,145 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 [2023-12-19 23:24:55,146 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:24:55,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:24:55,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1234720419, now seen corresponding path program 1 times [2023-12-19 23:24:55,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:24:55,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694381120] [2023-12-19 23:24:55,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:24:55,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:24:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:55,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:24:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:55,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:24:55,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:55,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:24:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:55,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:24:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:55,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-19 23:24:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:55,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-19 23:24:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:55,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-19 23:24:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:55,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 23:24:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:55,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 23:24:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:55,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 23:24:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:55,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 23:24:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:55,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 23:24:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:55,384 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-19 23:24:55,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:24:55,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694381120] [2023-12-19 23:24:55,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694381120] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:24:55,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834697855] [2023-12-19 23:24:55,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:24:55,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:24:55,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:24:55,386 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) [2023-12-19 23:24:55,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 23:24:55,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:55,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 23:24:55,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:24:55,716 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-19 23:24:55,717 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:24:55,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834697855] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:24:55,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:24:55,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-19 23:24:55,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721722726] [2023-12-19 23:24:55,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:24:55,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:24:55,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:24:55,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:24:55,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-19 23:24:55,719 INFO L87 Difference]: Start difference. First operand 439 states and 701 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-19 23:24:55,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:24:55,835 INFO L93 Difference]: Finished difference Result 871 states and 1395 transitions. [2023-12-19 23:24:55,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:24:55,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 98 [2023-12-19 23:24:55,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:24:55,839 INFO L225 Difference]: With dead ends: 871 [2023-12-19 23:24:55,839 INFO L226 Difference]: Without dead ends: 441 [2023-12-19 23:24:55,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-19 23:24:55,842 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 8 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-12-19 23:24:55,842 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] [2023-12-19 23:24:55,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2023-12-19 23:24:55,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2023-12-19 23:24:55,862 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) [2023-12-19 23:24:55,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 707 transitions. [2023-12-19 23:24:55,865 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 707 transitions. Word has length 98 [2023-12-19 23:24:55,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:24:55,865 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 707 transitions. [2023-12-19 23:24:55,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-19 23:24:55,865 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 707 transitions. [2023-12-19 23:24:55,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-19 23:24:55,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:24:55,867 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:24:55,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 23:24:56,076 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 [2023-12-19 23:24:56,077 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:24:56,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:24:56,077 INFO L85 PathProgramCache]: Analyzing trace with hash 315842101, now seen corresponding path program 1 times [2023-12-19 23:24:56,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:24:56,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229457712] [2023-12-19 23:24:56,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:24:56,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:24:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:56,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:24:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:56,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:24:56,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:56,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:24:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:56,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:24:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:56,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:24:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:56,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 23:24:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:56,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-19 23:24:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:56,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 23:24:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:56,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 23:24:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:56,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 23:24:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:56,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 23:24:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:56,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-19 23:24:56,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:56,252 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-19 23:24:56,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:24:56,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229457712] [2023-12-19 23:24:56,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229457712] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:24:56,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:24:56,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 23:24:56,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912638833] [2023-12-19 23:24:56,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:24:56,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 23:24:56,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:24:56,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 23:24:56,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:24:56,254 INFO L87 Difference]: Start difference. First operand 441 states and 707 transitions. Second operand has 9 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-19 23:24:58,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:24:58,573 INFO L93 Difference]: Finished difference Result 1041 states and 1705 transitions. [2023-12-19 23:24:58,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 23:24:58,574 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 99 [2023-12-19 23:24:58,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:24:58,578 INFO L225 Difference]: With dead ends: 1041 [2023-12-19 23:24:58,578 INFO L226 Difference]: Without dead ends: 619 [2023-12-19 23:24:58,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-19 23:24:58,581 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 1286 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 3038 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 1240 SdHoareTripleChecker+Invalid, 3446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 3038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:24:58,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 1240 Invalid, 3446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 3038 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-19 23:24:58,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2023-12-19 23:24:58,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 441. [2023-12-19 23:24:58,621 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) [2023-12-19 23:24:58,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 706 transitions. [2023-12-19 23:24:58,624 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 706 transitions. Word has length 99 [2023-12-19 23:24:58,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:24:58,624 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 706 transitions. [2023-12-19 23:24:58,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-19 23:24:58,625 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 706 transitions. [2023-12-19 23:24:58,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-19 23:24:58,626 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:24:58,627 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:24:58,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 23:24:58,627 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:24:58,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:24:58,627 INFO L85 PathProgramCache]: Analyzing trace with hash -2111179519, now seen corresponding path program 2 times [2023-12-19 23:24:58,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:24:58,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832286783] [2023-12-19 23:24:58,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:24:58,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:24:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:58,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:24:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:58,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:24:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:58,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:24:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:58,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:24:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:58,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:24:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:58,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 23:24:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:58,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-19 23:24:58,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:58,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-19 23:24:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:58,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:24:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:58,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-19 23:24:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:58,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-19 23:24:58,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:58,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-19 23:24:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:24:58,804 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-19 23:24:58,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:24:58,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832286783] [2023-12-19 23:24:58,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832286783] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:24:58,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:24:58,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 23:24:58,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684510394] [2023-12-19 23:24:58,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:24:58,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 23:24:58,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:24:58,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 23:24:58,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:24:58,806 INFO L87 Difference]: Start difference. First operand 441 states and 706 transitions. Second operand has 9 states, 8 states have (on average 7.75) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-19 23:25:01,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:25:01,014 INFO L93 Difference]: Finished difference Result 1043 states and 1708 transitions. [2023-12-19 23:25:01,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 23:25:01,015 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.75) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 100 [2023-12-19 23:25:01,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:25:01,019 INFO L225 Difference]: With dead ends: 1043 [2023-12-19 23:25:01,020 INFO L226 Difference]: Without dead ends: 621 [2023-12-19 23:25:01,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-19 23:25:01,022 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 1279 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 3023 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 3438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 3023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-19 23:25:01,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 1241 Invalid, 3438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 3023 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-19 23:25:01,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2023-12-19 23:25:01,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 443. [2023-12-19 23:25:01,052 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) [2023-12-19 23:25:01,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 709 transitions. [2023-12-19 23:25:01,054 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 709 transitions. Word has length 100 [2023-12-19 23:25:01,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:25:01,055 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 709 transitions. [2023-12-19 23:25:01,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.75) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-19 23:25:01,055 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 709 transitions. [2023-12-19 23:25:01,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-19 23:25:01,058 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:25:01,058 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:25:01,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 23:25:01,058 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:25:01,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:25:01,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1271003846, now seen corresponding path program 1 times [2023-12-19 23:25:01,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:25:01,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907071160] [2023-12-19 23:25:01,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:25:01,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:25:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:01,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:25:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:01,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:25:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:01,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:25:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:01,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:25:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:01,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:25:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:01,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:25:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:01,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-19 23:25:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:01,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-19 23:25:01,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:01,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 23:25:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:01,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 23:25:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:01,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 23:25:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:01,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-19 23:25:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:01,275 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-19 23:25:01,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:25:01,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907071160] [2023-12-19 23:25:01,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907071160] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:25:01,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:25:01,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-19 23:25:01,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251657312] [2023-12-19 23:25:01,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:25:01,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 23:25:01,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:25:01,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 23:25:01,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-19 23:25:01,277 INFO L87 Difference]: Start difference. First operand 443 states and 709 transitions. Second operand has 12 states, 11 states have (on average 6.0) internal successors, (66), 8 states have internal predecessors, (66), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-19 23:25:04,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:25:04,216 INFO L93 Difference]: Finished difference Result 1041 states and 1703 transitions. [2023-12-19 23:25:04,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 23:25:04,217 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 8 states have internal predecessors, (66), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 101 [2023-12-19 23:25:04,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:25:04,221 INFO L225 Difference]: With dead ends: 1041 [2023-12-19 23:25:04,221 INFO L226 Difference]: Without dead ends: 621 [2023-12-19 23:25:04,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-19 23:25:04,224 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 1288 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 5034 mSolverCounterSat, 416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 5450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 5034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-19 23:25:04,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 1719 Invalid, 5450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [416 Valid, 5034 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-19 23:25:04,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2023-12-19 23:25:04,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 443. [2023-12-19 23:25:04,251 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) [2023-12-19 23:25:04,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 708 transitions. [2023-12-19 23:25:04,254 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 708 transitions. Word has length 101 [2023-12-19 23:25:04,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:25:04,254 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 708 transitions. [2023-12-19 23:25:04,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 8 states have internal predecessors, (66), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-19 23:25:04,254 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 708 transitions. [2023-12-19 23:25:04,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-19 23:25:04,256 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:25:04,256 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:25:04,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 23:25:04,256 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:25:04,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:25:04,269 INFO L85 PathProgramCache]: Analyzing trace with hash -148491490, now seen corresponding path program 2 times [2023-12-19 23:25:04,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:25:04,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287476120] [2023-12-19 23:25:04,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:25:04,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:25:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:04,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:25:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:04,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:25:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:04,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:25:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:04,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:25:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:04,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:25:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:04,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:25:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:04,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 23:25:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:04,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 23:25:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:04,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 23:25:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:04,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 23:25:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:04,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 23:25:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:04,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-19 23:25:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:04,473 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-19 23:25:04,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:25:04,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287476120] [2023-12-19 23:25:04,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287476120] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:25:04,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:25:04,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-19 23:25:04,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622353734] [2023-12-19 23:25:04,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:25:04,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 23:25:04,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:25:04,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 23:25:04,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-19 23:25:04,476 INFO L87 Difference]: Start difference. First operand 443 states and 708 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 8 states have internal predecessors, (67), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-19 23:25:07,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:25:07,170 INFO L93 Difference]: Finished difference Result 1043 states and 1709 transitions. [2023-12-19 23:25:07,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 23:25:07,171 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 8 states have internal predecessors, (67), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 102 [2023-12-19 23:25:07,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:25:07,175 INFO L225 Difference]: With dead ends: 1043 [2023-12-19 23:25:07,176 INFO L226 Difference]: Without dead ends: 623 [2023-12-19 23:25:07,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-19 23:25:07,178 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 1286 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 5026 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 5447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 5026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:25:07,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 1717 Invalid, 5447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 5026 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-19 23:25:07,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2023-12-19 23:25:07,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 445. [2023-12-19 23:25:07,204 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) [2023-12-19 23:25:07,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 714 transitions. [2023-12-19 23:25:07,207 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 714 transitions. Word has length 102 [2023-12-19 23:25:07,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:25:07,207 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 714 transitions. [2023-12-19 23:25:07,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 8 states have internal predecessors, (67), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2023-12-19 23:25:07,207 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 714 transitions. [2023-12-19 23:25:07,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-19 23:25:07,209 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:25:07,209 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:25:07,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 23:25:07,209 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:25:07,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:25:07,210 INFO L85 PathProgramCache]: Analyzing trace with hash -753838337, now seen corresponding path program 1 times [2023-12-19 23:25:07,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:25:07,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45882096] [2023-12-19 23:25:07,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:25:07,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:25:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:07,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:25:07,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:07,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:25:07,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:07,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:25:07,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:07,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:25:07,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:07,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:25:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:07,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:25:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:07,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-19 23:25:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:07,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 23:25:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:07,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 23:25:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:07,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-19 23:25:07,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:07,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 23:25:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:07,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-19 23:25:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:07,456 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-19 23:25:07,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:25:07,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45882096] [2023-12-19 23:25:07,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45882096] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:25:07,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298922230] [2023-12-19 23:25:07,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:25:07,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:25:07,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:25:07,461 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) [2023-12-19 23:25:07,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 23:25:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:07,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 23:25:07,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:25:07,774 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 23:25:07,774 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 23:25:07,847 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 23:25:07,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298922230] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 23:25:07,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 23:25:07,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-12-19 23:25:07,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770007521] [2023-12-19 23:25:07,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 23:25:07,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-19 23:25:07,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:25:07,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-19 23:25:07,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-19 23:25:07,852 INFO L87 Difference]: Start difference. First operand 445 states and 714 transitions. Second operand has 15 states, 14 states have (on average 7.857142857142857) internal successors, (110), 11 states have internal predecessors, (110), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-12-19 23:25:10,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:25:10,950 INFO L93 Difference]: Finished difference Result 1482 states and 2520 transitions. [2023-12-19 23:25:10,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-19 23:25:10,951 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.857142857142857) internal successors, (110), 11 states have internal predecessors, (110), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 103 [2023-12-19 23:25:10,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:25:10,958 INFO L225 Difference]: With dead ends: 1482 [2023-12-19 23:25:10,958 INFO L226 Difference]: Without dead ends: 1063 [2023-12-19 23:25:10,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-12-19 23:25:10,961 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 2700 mSDsluCounter, 1789 mSDsCounter, 0 mSdLazyCounter, 5478 mSolverCounterSat, 811 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2721 SdHoareTripleChecker+Valid, 1970 SdHoareTripleChecker+Invalid, 6289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 811 IncrementalHoareTripleChecker+Valid, 5478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-19 23:25:10,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2721 Valid, 1970 Invalid, 6289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [811 Valid, 5478 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-19 23:25:10,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2023-12-19 23:25:11,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 870. [2023-12-19 23:25:11,007 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) [2023-12-19 23:25:11,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1470 transitions. [2023-12-19 23:25:11,011 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1470 transitions. Word has length 103 [2023-12-19 23:25:11,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:25:11,013 INFO L495 AbstractCegarLoop]: Abstraction has 870 states and 1470 transitions. [2023-12-19 23:25:11,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.857142857142857) internal successors, (110), 11 states have internal predecessors, (110), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2023-12-19 23:25:11,013 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1470 transitions. [2023-12-19 23:25:11,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-19 23:25:11,017 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:25:11,017 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:25:11,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 23:25:11,226 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 [2023-12-19 23:25:11,226 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:25:11,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:25:11,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1134535223, now seen corresponding path program 1 times [2023-12-19 23:25:11,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:25:11,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706934215] [2023-12-19 23:25:11,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:25:11,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:25:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:11,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:25:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:11,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:25:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:11,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:25:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:11,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:25:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:11,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:25:11,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:11,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:25:11,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:11,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-19 23:25:11,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:11,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 23:25:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:11,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 23:25:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:11,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-19 23:25:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:11,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-19 23:25:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:11,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 23:25:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:11,365 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 23:25:11,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:25:11,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706934215] [2023-12-19 23:25:11,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706934215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:25:11,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:25:11,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:25:11,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009433921] [2023-12-19 23:25:11,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:25:11,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:25:11,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:25:11,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:25:11,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:25:11,367 INFO L87 Difference]: Start difference. First operand 870 states and 1470 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:25:13,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:25:13,198 INFO L93 Difference]: Finished difference Result 2257 states and 3909 transitions. [2023-12-19 23:25:13,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:25:13,199 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2023-12-19 23:25:13,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:25:13,207 INFO L225 Difference]: With dead ends: 2257 [2023-12-19 23:25:13,207 INFO L226 Difference]: Without dead ends: 1455 [2023-12-19 23:25:13,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:25:13,210 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 1406 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 2225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 491 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-19 23:25:13,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1424 Valid, 922 Invalid, 2225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [491 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-19 23:25:13,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2023-12-19 23:25:13,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1272. [2023-12-19 23:25:13,261 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) [2023-12-19 23:25:13,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 2185 transitions. [2023-12-19 23:25:13,266 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 2185 transitions. Word has length 107 [2023-12-19 23:25:13,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:25:13,267 INFO L495 AbstractCegarLoop]: Abstraction has 1272 states and 2185 transitions. [2023-12-19 23:25:13,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:25:13,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 2185 transitions. [2023-12-19 23:25:13,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-19 23:25:13,272 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:25:13,272 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:25:13,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 23:25:13,272 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:25:13,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:25:13,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1578627852, now seen corresponding path program 1 times [2023-12-19 23:25:13,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:25:13,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091782672] [2023-12-19 23:25:13,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:25:13,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:25:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:13,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:25:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:13,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:25:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:13,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:25:13,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:13,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:25:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:13,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:25:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:13,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:25:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:13,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 23:25:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:13,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 23:25:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:13,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-19 23:25:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:13,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-19 23:25:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:13,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-19 23:25:13,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:13,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-19 23:25:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:13,351 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 23:25:13,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:25:13,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091782672] [2023-12-19 23:25:13,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091782672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:25:13,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:25:13,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:25:13,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952908856] [2023-12-19 23:25:13,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:25:13,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:25:13,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:25:13,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:25:13,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:25:13,353 INFO L87 Difference]: Start difference. First operand 1272 states and 2185 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:25:15,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:25:15,096 INFO L93 Difference]: Finished difference Result 3260 states and 5686 transitions. [2023-12-19 23:25:15,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:25:15,097 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2023-12-19 23:25:15,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:25:15,107 INFO L225 Difference]: With dead ends: 3260 [2023-12-19 23:25:15,107 INFO L226 Difference]: Without dead ends: 2106 [2023-12-19 23:25:15,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:25:15,111 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 1405 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 1732 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 2217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 1732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-19 23:25:15,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1423 Valid, 922 Invalid, 2217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 1732 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-19 23:25:15,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2106 states. [2023-12-19 23:25:15,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2106 to 1923. [2023-12-19 23:25:15,191 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) [2023-12-19 23:25:15,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 3319 transitions. [2023-12-19 23:25:15,197 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 3319 transitions. Word has length 108 [2023-12-19 23:25:15,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:25:15,197 INFO L495 AbstractCegarLoop]: Abstraction has 1923 states and 3319 transitions. [2023-12-19 23:25:15,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:25:15,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 3319 transitions. [2023-12-19 23:25:15,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-19 23:25:15,206 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:25:15,206 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:25:15,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 23:25:15,206 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:25:15,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:25:15,206 INFO L85 PathProgramCache]: Analyzing trace with hash -470690441, now seen corresponding path program 1 times [2023-12-19 23:25:15,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:25:15,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224726559] [2023-12-19 23:25:15,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:25:15,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:25:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:15,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:25:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:15,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:25:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:15,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:25:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:15,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:25:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:15,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:25:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:15,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:25:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:15,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 23:25:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:15,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 23:25:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:15,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 23:25:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:15,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-19 23:25:15,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:15,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-19 23:25:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:15,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-19 23:25:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:15,295 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 23:25:15,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:25:15,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224726559] [2023-12-19 23:25:15,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224726559] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:25:15,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:25:15,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:25:15,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935480301] [2023-12-19 23:25:15,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:25:15,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:25:15,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:25:15,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:25:15,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:25:15,297 INFO L87 Difference]: Start difference. First operand 1923 states and 3319 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:25:16,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:25:16,906 INFO L93 Difference]: Finished difference Result 4784 states and 8404 transitions. [2023-12-19 23:25:16,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:25:16,906 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2023-12-19 23:25:16,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:25:16,921 INFO L225 Difference]: With dead ends: 4784 [2023-12-19 23:25:16,921 INFO L226 Difference]: Without dead ends: 3107 [2023-12-19 23:25:16,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:25:16,928 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1404 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 1716 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 2201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 1716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:25:16,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1423 Valid, 908 Invalid, 2201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 1716 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-19 23:25:16,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3107 states. [2023-12-19 23:25:17,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3107 to 2924. [2023-12-19 23:25:17,070 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) [2023-12-19 23:25:17,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2924 states to 2924 states and 5075 transitions. [2023-12-19 23:25:17,080 INFO L78 Accepts]: Start accepts. Automaton has 2924 states and 5075 transitions. Word has length 109 [2023-12-19 23:25:17,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:25:17,080 INFO L495 AbstractCegarLoop]: Abstraction has 2924 states and 5075 transitions. [2023-12-19 23:25:17,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:25:17,081 INFO L276 IsEmpty]: Start isEmpty. Operand 2924 states and 5075 transitions. [2023-12-19 23:25:17,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-19 23:25:17,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:25:17,091 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:25:17,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 23:25:17,091 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:25:17,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:25:17,092 INFO L85 PathProgramCache]: Analyzing trace with hash 78671989, now seen corresponding path program 1 times [2023-12-19 23:25:17,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:25:17,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259001893] [2023-12-19 23:25:17,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:25:17,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:25:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:17,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:25:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:17,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:25:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:17,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:25:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:17,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:25:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:17,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:25:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:17,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:25:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:17,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-19 23:25:17,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:17,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 23:25:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:17,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-19 23:25:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:17,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 23:25:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:17,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 23:25:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:17,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 23:25:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:17,180 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 23:25:17,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:25:17,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259001893] [2023-12-19 23:25:17,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259001893] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:25:17,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:25:17,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:25:17,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4138467] [2023-12-19 23:25:17,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:25:17,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:25:17,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:25:17,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:25:17,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:25:17,182 INFO L87 Difference]: Start difference. First operand 2924 states and 5075 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:25:18,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:25:18,909 INFO L93 Difference]: Finished difference Result 7196 states and 12717 transitions. [2023-12-19 23:25:18,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:25:18,909 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2023-12-19 23:25:18,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:25:18,931 INFO L225 Difference]: With dead ends: 7196 [2023-12-19 23:25:18,931 INFO L226 Difference]: Without dead ends: 4727 [2023-12-19 23:25:18,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:25:18,941 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1401 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 2199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-19 23:25:18,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1419 Valid, 908 Invalid, 2199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-19 23:25:18,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4727 states. [2023-12-19 23:25:19,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4727 to 4544. [2023-12-19 23:25:19,134 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) [2023-12-19 23:25:19,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4544 states to 4544 states and 7913 transitions. [2023-12-19 23:25:19,147 INFO L78 Accepts]: Start accepts. Automaton has 4544 states and 7913 transitions. Word has length 110 [2023-12-19 23:25:19,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:25:19,148 INFO L495 AbstractCegarLoop]: Abstraction has 4544 states and 7913 transitions. [2023-12-19 23:25:19,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:25:19,148 INFO L276 IsEmpty]: Start isEmpty. Operand 4544 states and 7913 transitions. [2023-12-19 23:25:19,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-19 23:25:19,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:25:19,160 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:25:19,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-19 23:25:19,160 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:25:19,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:25:19,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1272594605, now seen corresponding path program 1 times [2023-12-19 23:25:19,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:25:19,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862348370] [2023-12-19 23:25:19,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:25:19,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:25:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:19,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:25:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:19,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:25:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:19,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:25:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:19,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:25:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:19,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:25:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:19,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:25:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:19,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-19 23:25:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:19,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 23:25:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:19,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-19 23:25:19,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:19,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-19 23:25:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:19,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 23:25:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:19,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-19 23:25:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:19,251 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 23:25:19,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:25:19,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862348370] [2023-12-19 23:25:19,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862348370] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:25:19,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:25:19,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:25:19,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146491684] [2023-12-19 23:25:19,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:25:19,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:25:19,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:25:19,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:25:19,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:25:19,253 INFO L87 Difference]: Start difference. First operand 4544 states and 7913 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:25:20,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:25:20,981 INFO L93 Difference]: Finished difference Result 11273 states and 19970 transitions. [2023-12-19 23:25:20,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:25:20,982 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2023-12-19 23:25:20,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:25:21,013 INFO L225 Difference]: With dead ends: 11273 [2023-12-19 23:25:21,013 INFO L226 Difference]: Without dead ends: 7487 [2023-12-19 23:25:21,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:25:21,023 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1400 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 486 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 486 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:25:21,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1419 Valid, 925 Invalid, 2246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [486 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-19 23:25:21,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7487 states. [2023-12-19 23:25:21,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7487 to 7304. [2023-12-19 23:25:21,348 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) [2023-12-19 23:25:21,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7304 states to 7304 states and 12719 transitions. [2023-12-19 23:25:21,372 INFO L78 Accepts]: Start accepts. Automaton has 7304 states and 12719 transitions. Word has length 111 [2023-12-19 23:25:21,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:25:21,372 INFO L495 AbstractCegarLoop]: Abstraction has 7304 states and 12719 transitions. [2023-12-19 23:25:21,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:25:21,373 INFO L276 IsEmpty]: Start isEmpty. Operand 7304 states and 12719 transitions. [2023-12-19 23:25:21,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-19 23:25:21,389 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:25:21,389 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:25:21,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-19 23:25:21,390 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:25:21,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:25:21,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1913516391, now seen corresponding path program 1 times [2023-12-19 23:25:21,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:25:21,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128224456] [2023-12-19 23:25:21,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:25:21,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:25:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:21,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:25:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:21,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:25:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:21,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:25:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:21,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:25:21,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:21,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:25:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:21,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:25:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:21,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-19 23:25:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:21,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:25:21,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:21,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-19 23:25:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:21,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-19 23:25:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:21,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-19 23:25:21,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:21,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-19 23:25:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:21,499 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 23:25:21,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:25:21,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128224456] [2023-12-19 23:25:21,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128224456] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:25:21,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:25:21,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:25:21,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587048975] [2023-12-19 23:25:21,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:25:21,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:25:21,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:25:21,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:25:21,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:25:21,502 INFO L87 Difference]: Start difference. First operand 7304 states and 12719 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:25:23,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:25:23,204 INFO L93 Difference]: Finished difference Result 18632 states and 32990 transitions. [2023-12-19 23:25:23,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:25:23,205 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2023-12-19 23:25:23,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:25:23,254 INFO L225 Difference]: With dead ends: 18632 [2023-12-19 23:25:23,254 INFO L226 Difference]: Without dead ends: 12472 [2023-12-19 23:25:23,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:25:23,280 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 1396 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 2220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:25:23,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 921 Invalid, 2220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-19 23:25:23,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12472 states. [2023-12-19 23:25:23,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12472 to 12289. [2023-12-19 23:25:23,845 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) [2023-12-19 23:25:23,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12289 states to 12289 states and 21415 transitions. [2023-12-19 23:25:23,885 INFO L78 Accepts]: Start accepts. Automaton has 12289 states and 21415 transitions. Word has length 112 [2023-12-19 23:25:23,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:25:23,886 INFO L495 AbstractCegarLoop]: Abstraction has 12289 states and 21415 transitions. [2023-12-19 23:25:23,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:25:23,886 INFO L276 IsEmpty]: Start isEmpty. Operand 12289 states and 21415 transitions. [2023-12-19 23:25:23,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-19 23:25:23,905 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:25:23,906 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:25:23,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 23:25:23,906 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:25:23,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:25:23,906 INFO L85 PathProgramCache]: Analyzing trace with hash -493055647, now seen corresponding path program 1 times [2023-12-19 23:25:23,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:25:23,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354721011] [2023-12-19 23:25:23,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:25:23,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:25:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:23,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:25:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:23,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:25:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:23,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:25:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:23,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:25:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:23,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:25:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:23,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:25:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:23,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-19 23:25:23,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:23,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 23:25:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:23,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-19 23:25:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:23,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-19 23:25:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:23,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-19 23:25:23,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:23,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-19 23:25:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:23,988 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 23:25:23,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:25:23,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354721011] [2023-12-19 23:25:23,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354721011] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:25:23,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:25:23,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:25:23,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500169849] [2023-12-19 23:25:23,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:25:23,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:25:23,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:25:23,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:25:23,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:25:23,990 INFO L87 Difference]: Start difference. First operand 12289 states and 21415 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:25:25,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:25:25,956 INFO L93 Difference]: Finished difference Result 29598 states and 52173 transitions. [2023-12-19 23:25:25,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:25:25,956 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2023-12-19 23:25:25,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:25:26,021 INFO L225 Difference]: With dead ends: 29598 [2023-12-19 23:25:26,021 INFO L226 Difference]: Without dead ends: 19432 [2023-12-19 23:25:26,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:25:26,049 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1393 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 1759 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 2232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 1759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:25:26,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 896 Invalid, 2232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 1759 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-19 23:25:26,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19432 states. [2023-12-19 23:25:26,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19432 to 19249. [2023-12-19 23:25:26,739 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) [2023-12-19 23:25:26,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19249 states to 19249 states and 33258 transitions. [2023-12-19 23:25:26,802 INFO L78 Accepts]: Start accepts. Automaton has 19249 states and 33258 transitions. Word has length 113 [2023-12-19 23:25:26,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:25:26,802 INFO L495 AbstractCegarLoop]: Abstraction has 19249 states and 33258 transitions. [2023-12-19 23:25:26,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:25:26,802 INFO L276 IsEmpty]: Start isEmpty. Operand 19249 states and 33258 transitions. [2023-12-19 23:25:26,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-19 23:25:26,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:25:26,822 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:25:26,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 23:25:26,823 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:25:26,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:25:26,823 INFO L85 PathProgramCache]: Analyzing trace with hash -118328518, now seen corresponding path program 1 times [2023-12-19 23:25:26,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:25:26,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651222294] [2023-12-19 23:25:26,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:25:26,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:25:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:26,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:25:26,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:26,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:25:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:26,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:25:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:26,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:25:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:26,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:25:26,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:26,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:25:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:26,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 23:25:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:26,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-19 23:25:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:26,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-19 23:25:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:26,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-19 23:25:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:26,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-19 23:25:26,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:26,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-19 23:25:26,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:26,919 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 23:25:26,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:25:26,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651222294] [2023-12-19 23:25:26,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651222294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:25:26,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:25:26,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:25:26,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848441512] [2023-12-19 23:25:26,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:25:26,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:25:26,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:25:26,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:25:26,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:25:26,923 INFO L87 Difference]: Start difference. First operand 19249 states and 33258 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:25:29,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:25:29,173 INFO L93 Difference]: Finished difference Result 51039 states and 89706 transitions. [2023-12-19 23:25:29,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:25:29,174 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2023-12-19 23:25:29,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:25:29,308 INFO L225 Difference]: With dead ends: 51039 [2023-12-19 23:25:29,308 INFO L226 Difference]: Without dead ends: 34561 [2023-12-19 23:25:29,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:25:29,367 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1391 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1409 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 2218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:25:29,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1409 Valid, 910 Invalid, 2218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [482 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-19 23:25:29,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34561 states. [2023-12-19 23:25:30,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34561 to 34378. [2023-12-19 23:25:30,739 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) [2023-12-19 23:25:30,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34378 states to 34378 states and 59317 transitions. [2023-12-19 23:25:30,857 INFO L78 Accepts]: Start accepts. Automaton has 34378 states and 59317 transitions. Word has length 114 [2023-12-19 23:25:30,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:25:30,858 INFO L495 AbstractCegarLoop]: Abstraction has 34378 states and 59317 transitions. [2023-12-19 23:25:30,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:25:30,858 INFO L276 IsEmpty]: Start isEmpty. Operand 34378 states and 59317 transitions. [2023-12-19 23:25:30,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-19 23:25:30,881 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:25:30,881 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:25:30,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-19 23:25:30,883 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:25:30,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:25:30,883 INFO L85 PathProgramCache]: Analyzing trace with hash 687958427, now seen corresponding path program 1 times [2023-12-19 23:25:30,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:25:30,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382148053] [2023-12-19 23:25:30,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:25:30,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:25:30,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:30,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:25:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:30,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:25:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:30,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:25:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:30,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:25:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:30,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:25:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:30,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:25:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:30,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 23:25:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:30,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 23:25:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:30,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 23:25:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:30,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-19 23:25:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:30,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-19 23:25:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:30,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-19 23:25:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:30,972 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 23:25:30,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:25:30,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382148053] [2023-12-19 23:25:30,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382148053] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:25:30,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:25:30,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:25:30,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385864069] [2023-12-19 23:25:30,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:25:30,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:25:30,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:25:30,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:25:30,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:25:30,974 INFO L87 Difference]: Start difference. First operand 34378 states and 59317 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:25:33,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:25:33,906 INFO L93 Difference]: Finished difference Result 93921 states and 164300 transitions. [2023-12-19 23:25:33,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:25:33,907 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2023-12-19 23:25:33,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:25:34,113 INFO L225 Difference]: With dead ends: 93921 [2023-12-19 23:25:34,114 INFO L226 Difference]: Without dead ends: 63237 [2023-12-19 23:25:34,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:25:34,198 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1391 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1409 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 2206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-19 23:25:34,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1409 Valid, 910 Invalid, 2206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-19 23:25:34,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63237 states. [2023-12-19 23:25:36,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63237 to 63054. [2023-12-19 23:25:36,304 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) [2023-12-19 23:25:36,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63054 states to 63054 states and 108567 transitions. [2023-12-19 23:25:36,534 INFO L78 Accepts]: Start accepts. Automaton has 63054 states and 108567 transitions. Word has length 115 [2023-12-19 23:25:36,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:25:36,534 INFO L495 AbstractCegarLoop]: Abstraction has 63054 states and 108567 transitions. [2023-12-19 23:25:36,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:25:36,535 INFO L276 IsEmpty]: Start isEmpty. Operand 63054 states and 108567 transitions. [2023-12-19 23:25:36,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-19 23:25:36,556 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:25:36,556 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:25:36,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-19 23:25:36,556 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:25:36,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:25:36,557 INFO L85 PathProgramCache]: Analyzing trace with hash -177795654, now seen corresponding path program 1 times [2023-12-19 23:25:36,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:25:36,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984291900] [2023-12-19 23:25:36,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:25:36,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:25:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:36,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:25:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:36,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:25:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:36,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:25:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:36,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:25:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:36,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:25:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:36,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:25:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:36,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-19 23:25:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:36,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-19 23:25:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:36,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-19 23:25:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:36,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 23:25:36,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:36,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 23:25:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:36,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-19 23:25:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:36,663 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 23:25:36,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:25:36,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984291900] [2023-12-19 23:25:36,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984291900] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:25:36,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:25:36,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:25:36,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793325794] [2023-12-19 23:25:36,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:25:36,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:25:36,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:25:36,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:25:36,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:25:36,666 INFO L87 Difference]: Start difference. First operand 63054 states and 108567 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:25:40,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:25:40,404 INFO L93 Difference]: Finished difference Result 118301 states and 207452 transitions. [2023-12-19 23:25:40,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:25:40,405 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2023-12-19 23:25:40,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:25:40,835 INFO L225 Difference]: With dead ends: 118301 [2023-12-19 23:25:40,835 INFO L226 Difference]: Without dead ends: 118123 [2023-12-19 23:25:40,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:25:40,899 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 1388 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 1727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:25:40,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 909 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 1727 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-19 23:25:40,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118123 states. [2023-12-19 23:25:44,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118123 to 117940. [2023-12-19 23:25:44,626 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) [2023-12-19 23:25:45,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117940 states to 117940 states and 202499 transitions. [2023-12-19 23:25:45,235 INFO L78 Accepts]: Start accepts. Automaton has 117940 states and 202499 transitions. Word has length 116 [2023-12-19 23:25:45,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:25:45,235 INFO L495 AbstractCegarLoop]: Abstraction has 117940 states and 202499 transitions. [2023-12-19 23:25:45,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-19 23:25:45,236 INFO L276 IsEmpty]: Start isEmpty. Operand 117940 states and 202499 transitions. [2023-12-19 23:25:45,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-19 23:25:45,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:25:45,260 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:25:45,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-19 23:25:45,261 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:25:45,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:25:45,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1311412870, now seen corresponding path program 1 times [2023-12-19 23:25:45,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:25:45,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732546825] [2023-12-19 23:25:45,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:25:45,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:25:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:45,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:25:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:45,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:25:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:45,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 23:25:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:45,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:25:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:45,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:25:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:45,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-19 23:25:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:45,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-19 23:25:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:45,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-19 23:25:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:45,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-19 23:25:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:45,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-19 23:25:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:45,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-19 23:25:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:45,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-19 23:25:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:25:45,427 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 23:25:45,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:25:45,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732546825] [2023-12-19 23:25:45,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732546825] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:25:45,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:25:45,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-19 23:25:45,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206681209] [2023-12-19 23:25:45,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:25:45,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-19 23:25:45,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:25:45,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-19 23:25:45,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:25:45,429 INFO L87 Difference]: Start difference. First operand 117940 states and 202499 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 23:25:49,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:25:49,704 INFO L93 Difference]: Finished difference Result 118116 states and 206087 transitions. [2023-12-19 23:25:49,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 23:25:49,705 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 117 [2023-12-19 23:25:49,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:25:49,705 INFO L225 Difference]: With dead ends: 118116 [2023-12-19 23:25:49,705 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 23:25:49,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2023-12-19 23:25:49,955 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1412 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 3620 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 4031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 3620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-19 23:25:49,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1436 Valid, 1265 Invalid, 4031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 3620 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-19 23:25:49,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 23:25:49,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 23:25:49,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:25:49,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 23:25:49,969 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 117 [2023-12-19 23:25:49,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:25:49,970 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 23:25:49,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 5 states have internal predecessors, (77), 1 states have call successors, (15), 5 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-19 23:25:49,970 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 23:25:49,970 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 23:25:49,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 23:25:49,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-19 23:25:49,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 23:26:02,660 WARN L293 SmtUtils]: Spent 12.62s on a formula simplification that was a NOOP. DAG size: 1128 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-12-19 23:26:14,479 WARN L293 SmtUtils]: Spent 11.81s on a formula simplification that was a NOOP. DAG size: 1128 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) Received shutdown request... [2023-12-19 23:38:59,725 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ∨-4-11-4-11-4-11-4-11-4-11-4-11-4-11-4-11-4-11-4-11-4-11-4-12-4-11-4-11-4-11-4-10-1 term,while PolyPacSimplificationTermWalker was simplifying 8 xjuncts wrt. a ∧-31-11-4-11-4-12-4-12-4-12-4-12-4-12-4-12-4-12-4-12-4-12-4-12-4-11-4-11-4-11-4-10-1 context. [2023-12-19 23:38:59,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 23:38:59,738 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 23:38:59,797 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-12-19 23:38:59,798 INFO L158 Benchmark]: Toolchain (without parser) took 851078.49ms. Allocated memory was 215.0MB in the beginning and 6.5GB in the end (delta: 6.3GB). Free memory was 163.3MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 4.1GB. Max. memory is 8.0GB. [2023-12-19 23:38:59,798 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 173.0MB. Free memory was 126.4MB in the beginning and 126.3MB in the end (delta: 172.2kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 23:38:59,799 INFO L158 Benchmark]: CACSL2BoogieTranslator took 729.54ms. Allocated memory is still 215.0MB. Free memory was 163.3MB in the beginning and 121.0MB in the end (delta: 42.3MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2023-12-19 23:38:59,799 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.37ms. Allocated memory is still 215.0MB. Free memory was 121.0MB in the beginning and 179.5MB in the end (delta: -58.4MB). Peak memory consumption was 6.9MB. Max. memory is 8.0GB. [2023-12-19 23:38:59,799 INFO L158 Benchmark]: Boogie Preprocessor took 85.11ms. Allocated memory is still 215.0MB. Free memory was 179.5MB in the beginning and 172.1MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-19 23:38:59,799 INFO L158 Benchmark]: RCFGBuilder took 1082.87ms. Allocated memory is still 215.0MB. Free memory was 172.1MB in the beginning and 172.0MB in the end (delta: 145.0kB). Peak memory consumption was 78.2MB. Max. memory is 8.0GB. [2023-12-19 23:38:59,800 INFO L158 Benchmark]: TraceAbstraction took 849072.59ms. Allocated memory was 215.0MB in the beginning and 6.5GB in the end (delta: 6.3GB). Free memory was 171.0MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 4.2GB. Max. memory is 8.0GB. [2023-12-19 23:38:59,801 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 173.0MB. Free memory was 126.4MB in the beginning and 126.3MB in the end (delta: 172.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 729.54ms. Allocated memory is still 215.0MB. Free memory was 163.3MB in the beginning and 121.0MB in the end (delta: 42.3MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 103.37ms. Allocated memory is still 215.0MB. Free memory was 121.0MB in the beginning and 179.5MB in the end (delta: -58.4MB). Peak memory consumption was 6.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 85.11ms. Allocated memory is still 215.0MB. Free memory was 179.5MB in the beginning and 172.1MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1082.87ms. Allocated memory is still 215.0MB. Free memory was 172.1MB in the beginning and 172.0MB in the end (delta: 145.0kB). Peak memory consumption was 78.2MB. Max. memory is 8.0GB. * TraceAbstraction took 849072.59ms. Allocated memory was 215.0MB in the beginning and 6.5GB in the end (delta: 6.3GB). Free memory was 171.0MB in the beginning and 2.3GB in the end (delta: -2.2GB). Peak memory consumption was 4.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] - GenericResultAtLocation [Line: 281]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [281] - GenericResultAtLocation [Line: 685]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [685] - GenericResultAtLocation [Line: 702]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [702] - GenericResultAtLocation [Line: 711]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [711] - GenericResultAtLocation [Line: 1114]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1114] - GenericResultAtLocation [Line: 1426]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1426] - GenericResultAtLocation [Line: 1461]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1461] - GenericResultAtLocation [Line: 2521]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2521] - GenericResultAtLocation [Line: 2887]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [2887] - GenericResultAtLocation [Line: 2905]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2905] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while PolyPacSimplificationTermWalker was simplifying a ∨-1092-14-1 term,while PolyPacSimplificationTermWalker was simplifying 7 xjuncts wrt. a ∧-1091-14-1 context. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown