/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_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:50:19,566 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:50:19,637 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:50:19,642 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:50:19,642 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:50:19,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:50:19,664 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:50:19,665 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:50:19,665 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:50:19,668 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:50:19,668 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:50:19,669 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:50:19,669 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:50:19,670 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:50:19,670 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:50:19,670 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:50:19,670 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:50:19,670 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:50:19,671 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:50:19,671 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:50:19,672 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:50:19,672 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:50:19,672 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:50:19,672 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:50:19,672 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:50:19,672 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:50:19,673 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:50:19,673 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:50:19,673 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:50:19,673 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:50:19,674 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:50:19,674 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:50:19,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:50:19,674 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:50:19,674 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:50:19,675 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:50:19,675 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:50:19,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:50:19,675 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:50:19,675 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:50:19,675 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:50:19,675 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:50:19,675 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:50:19,675 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:50:19,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:50:19,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:50:19,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:50:19,884 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:50:19,884 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:50:19,885 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product17.cil.c [2023-12-15 22:50:20,839 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:50:21,092 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:50:21,093 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product17.cil.c [2023-12-15 22:50:21,116 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6682bbf5/8be856443d4246d19833ed739fa5fd1a/FLAGf9be18a75 [2023-12-15 22:50:21,125 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6682bbf5/8be856443d4246d19833ed739fa5fd1a [2023-12-15 22:50:21,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:50:21,128 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:50:21,128 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:50:21,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:50:21,132 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:50:21,133 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:50:21" (1/1) ... [2023-12-15 22:50:21,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20bde59d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:21, skipping insertion in model container [2023-12-15 22:50:21,133 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:50:21" (1/1) ... [2023-12-15 22:50:21,201 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:50:21,516 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_product17.cil.c[48205,48218] [2023-12-15 22:50:21,556 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:50:21,567 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:50:21,573 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [48] [2023-12-15 22:50:21,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [79] [2023-12-15 22:50:21,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [445] [2023-12-15 22:50:21,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [463] [2023-12-15 22:50:21,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1543] [2023-12-15 22:50:21,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1955] [2023-12-15 22:50:21,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2053] [2023-12-15 22:50:21,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2091] [2023-12-15 22:50:21,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2100] [2023-12-15 22:50:21,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2325] [2023-12-15 22:50:21,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2610] [2023-12-15 22:50:21,633 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_product17.cil.c[48205,48218] [2023-12-15 22:50:21,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:50:21,682 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:50:21,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:21 WrapperNode [2023-12-15 22:50:21,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:50:21,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:50:21,683 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:50:21,683 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:50:21,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:21" (1/1) ... [2023-12-15 22:50:21,723 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:21" (1/1) ... [2023-12-15 22:50:21,781 INFO L138 Inliner]: procedures = 127, calls = 191, calls flagged for inlining = 54, calls inlined = 47, statements flattened = 906 [2023-12-15 22:50:21,782 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:50:21,782 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:50:21,782 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:50:21,782 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:50:21,790 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:21" (1/1) ... [2023-12-15 22:50:21,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:21" (1/1) ... [2023-12-15 22:50:21,794 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:21" (1/1) ... [2023-12-15 22:50:21,814 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]. [2023-12-15 22:50:21,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:21" (1/1) ... [2023-12-15 22:50:21,815 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:21" (1/1) ... [2023-12-15 22:50:21,841 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:21" (1/1) ... [2023-12-15 22:50:21,846 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:21" (1/1) ... [2023-12-15 22:50:21,854 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:21" (1/1) ... [2023-12-15 22:50:21,857 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:21" (1/1) ... [2023-12-15 22:50:21,862 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:50:21,863 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:50:21,863 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:50:21,863 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:50:21,864 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:21" (1/1) ... [2023-12-15 22:50:21,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:50:21,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:50:21,904 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) [2023-12-15 22:50:21,923 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 [2023-12-15 22:50:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-15 22:50:21,934 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-15 22:50:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-15 22:50:21,934 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-15 22:50:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2023-12-15 22:50:21,934 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2023-12-15 22:50:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-15 22:50:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-15 22:50:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-15 22:50:21,935 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-15 22:50:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-15 22:50:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-15 22:50:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-15 22:50:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-15 22:50:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-15 22:50:21,937 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-15 22:50:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-15 22:50:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-15 22:50:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-15 22:50:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-15 22:50:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-15 22:50:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-15 22:50:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:50:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-15 22:50:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-15 22:50:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-15 22:50:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-15 22:50:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-15 22:50:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-15 22:50:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-15 22:50:21,940 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-15 22:50:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-15 22:50:21,940 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-15 22:50:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-15 22:50:21,940 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-15 22:50:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-15 22:50:21,940 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-15 22:50:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-15 22:50:21,940 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-15 22:50:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:50:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 22:50:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 22:50:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-15 22:50:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-15 22:50:21,941 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-15 22:50:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-15 22:50:21,941 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-15 22:50:21,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:50:21,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:50:22,084 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:50:22,086 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:50:22,649 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:50:22,701 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:50:22,701 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 22:50:22,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:50:22 BoogieIcfgContainer [2023-12-15 22:50:22,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:50:22,703 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:50:22,703 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:50:22,706 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:50:22,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:50:21" (1/3) ... [2023-12-15 22:50:22,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a21ba39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:50:22, skipping insertion in model container [2023-12-15 22:50:22,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:50:21" (2/3) ... [2023-12-15 22:50:22,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a21ba39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:50:22, skipping insertion in model container [2023-12-15 22:50:22,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:50:22" (3/3) ... [2023-12-15 22:50:22,708 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product17.cil.c [2023-12-15 22:50:22,720 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:50:22,720 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:50:22,766 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:50:22,770 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;@878b055, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:50:22,770 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:50:22,775 INFO L276 IsEmpty]: Start isEmpty. Operand has 322 states, 251 states have (on average 1.6414342629482073) internal successors, (412), 254 states have internal predecessors, (412), 48 states have call successors, (48), 21 states have call predecessors, (48), 21 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-15 22:50:22,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-15 22:50:22,791 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:22,792 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] [2023-12-15 22:50:22,793 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:22,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:22,796 INFO L85 PathProgramCache]: Analyzing trace with hash 2129090083, now seen corresponding path program 1 times [2023-12-15 22:50:22,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:22,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793669925] [2023-12-15 22:50:22,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:22,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:22,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:23,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:23,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:23,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:23,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:50:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:23,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:50:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:23,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:50:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:23,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:50:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:23,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 22:50:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:23,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 22:50:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:23,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:50:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:23,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:50:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:23,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 22:50:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:23,300 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:50:23,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:23,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793669925] [2023-12-15 22:50:23,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793669925] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:50:23,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101494242] [2023-12-15 22:50:23,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:23,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:50:23,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:50:23,305 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) [2023-12-15 22:50:23,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 22:50:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:23,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 944 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 22:50:23,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:50:23,646 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-15 22:50:23,647 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:50:23,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101494242] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:23,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:50:23,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-12-15 22:50:23,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838558765] [2023-12-15 22:50:23,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:23,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 22:50:23,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:23,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 22:50:23,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:50:23,686 INFO L87 Difference]: Start difference. First operand has 322 states, 251 states have (on average 1.6414342629482073) internal successors, (412), 254 states have internal predecessors, (412), 48 states have call successors, (48), 21 states have call predecessors, (48), 21 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) 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) [2023-12-15 22:50:23,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:23,765 INFO L93 Difference]: Finished difference Result 464 states and 722 transitions. [2023-12-15 22:50:23,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 22:50:23,767 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 [2023-12-15 22:50:23,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:23,779 INFO L225 Difference]: With dead ends: 464 [2023-12-15 22:50:23,779 INFO L226 Difference]: Without dead ends: 319 [2023-12-15 22:50:23,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:50:23,791 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:23,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 492 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:50:23,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2023-12-15 22:50:23,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2023-12-15 22:50:23,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 249 states have (on average 1.6265060240963856) internal successors, (405), 251 states have internal predecessors, (405), 48 states have call successors, (48), 21 states have call predecessors, (48), 21 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-15 22:50:23,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 500 transitions. [2023-12-15 22:50:23,855 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 500 transitions. Word has length 88 [2023-12-15 22:50:23,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:23,856 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 500 transitions. [2023-12-15 22:50:23,856 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) [2023-12-15 22:50:23,856 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 500 transitions. [2023-12-15 22:50:23,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-15 22:50:23,860 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:23,860 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] [2023-12-15 22:50:23,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 22:50:24,071 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 [2023-12-15 22:50:24,072 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:24,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:24,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1223557416, now seen corresponding path program 1 times [2023-12-15 22:50:24,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:24,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778823292] [2023-12-15 22:50:24,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:24,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:24,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:24,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:24,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:24,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:50:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:24,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:50:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:24,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:50:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:24,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 22:50:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:24,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 22:50:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:24,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-15 22:50:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:24,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:50:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:24,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 22:50:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:24,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:50:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:24,334 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:50:24,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:24,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778823292] [2023-12-15 22:50:24,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778823292] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:50:24,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532355289] [2023-12-15 22:50:24,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:24,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:50:24,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:50:24,337 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) [2023-12-15 22:50:24,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 22:50:24,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:24,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 945 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 22:50:24,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:50:24,582 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-15 22:50:24,583 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:50:24,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532355289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:24,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:50:24,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-15 22:50:24,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671507171] [2023-12-15 22:50:24,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:24,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:50:24,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:24,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:50:24,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:50:24,586 INFO L87 Difference]: Start difference. First operand 319 states and 500 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) [2023-12-15 22:50:24,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:24,638 INFO L93 Difference]: Finished difference Result 460 states and 706 transitions. [2023-12-15 22:50:24,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:50:24,638 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 [2023-12-15 22:50:24,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:24,645 INFO L225 Difference]: With dead ends: 460 [2023-12-15 22:50:24,645 INFO L226 Difference]: Without dead ends: 321 [2023-12-15 22:50:24,647 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 [2023-12-15 22:50:24,649 INFO L413 NwaCegarLoop]: 489 mSDtfsCounter, 0 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:24,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 977 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:50:24,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2023-12-15 22:50:24,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2023-12-15 22:50:24,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 251 states have (on average 1.6215139442231075) internal successors, (407), 253 states have internal predecessors, (407), 48 states have call successors, (48), 21 states have call predecessors, (48), 21 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2023-12-15 22:50:24,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 502 transitions. [2023-12-15 22:50:24,681 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 502 transitions. Word has length 89 [2023-12-15 22:50:24,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:24,681 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 502 transitions. [2023-12-15 22:50:24,681 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) [2023-12-15 22:50:24,682 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 502 transitions. [2023-12-15 22:50:24,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-15 22:50:24,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:24,685 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] [2023-12-15 22:50:24,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-15 22:50:24,896 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 [2023-12-15 22:50:24,897 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:24,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:24,897 INFO L85 PathProgramCache]: Analyzing trace with hash 769217035, now seen corresponding path program 1 times [2023-12-15 22:50:24,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:24,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608659415] [2023-12-15 22:50:24,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:24,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:50:25,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:50:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:50:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 22:50:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:50:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 22:50:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:50:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 22:50:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:50:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,069 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:50:25,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:25,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608659415] [2023-12-15 22:50:25,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608659415] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:50:25,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528958311] [2023-12-15 22:50:25,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:25,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:50:25,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:50:25,077 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) [2023-12-15 22:50:25,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 22:50:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:50:25,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:50:25,307 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-15 22:50:25,307 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:50:25,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528958311] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:25,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:50:25,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-15 22:50:25,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520609919] [2023-12-15 22:50:25,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:25,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:50:25,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:25,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:50:25,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:50:25,310 INFO L87 Difference]: Start difference. First operand 321 states and 502 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2023-12-15 22:50:25,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:25,350 INFO L93 Difference]: Finished difference Result 686 states and 1089 transitions. [2023-12-15 22:50:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:50:25,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 94 [2023-12-15 22:50:25,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:25,354 INFO L225 Difference]: With dead ends: 686 [2023-12-15 22:50:25,354 INFO L226 Difference]: Without dead ends: 387 [2023-12-15 22:50:25,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:50:25,357 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 122 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:25,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 946 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:50:25,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2023-12-15 22:50:25,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 382. [2023-12-15 22:50:25,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 298 states have (on average 1.6342281879194631) internal successors, (487), 300 states have internal predecessors, (487), 62 states have call successors, (62), 21 states have call predecessors, (62), 21 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2023-12-15 22:50:25,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 610 transitions. [2023-12-15 22:50:25,375 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 610 transitions. Word has length 94 [2023-12-15 22:50:25,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:25,376 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 610 transitions. [2023-12-15 22:50:25,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2023-12-15 22:50:25,376 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 610 transitions. [2023-12-15 22:50:25,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-15 22:50:25,387 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:25,388 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] [2023-12-15 22:50:25,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 22:50:25,594 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 [2023-12-15 22:50:25,594 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:25,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:25,595 INFO L85 PathProgramCache]: Analyzing trace with hash 587092432, now seen corresponding path program 1 times [2023-12-15 22:50:25,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:25,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251041572] [2023-12-15 22:50:25,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:25,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:50:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:50:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:50:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:50:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-15 22:50:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:50:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 22:50:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:50:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 22:50:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,743 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:50:25,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:25,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251041572] [2023-12-15 22:50:25,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251041572] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:50:25,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739898498] [2023-12-15 22:50:25,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:25,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:50:25,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:50:25,745 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) [2023-12-15 22:50:25,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 22:50:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:25,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-15 22:50:25,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:50:26,007 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-15 22:50:26,008 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:50:26,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739898498] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:26,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:50:26,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-15 22:50:26,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085310404] [2023-12-15 22:50:26,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:26,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:50:26,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:26,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:50:26,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:50:26,009 INFO L87 Difference]: Start difference. First operand 382 states and 610 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 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) [2023-12-15 22:50:26,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:26,084 INFO L93 Difference]: Finished difference Result 759 states and 1214 transitions. [2023-12-15 22:50:26,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:50:26,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 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 95 [2023-12-15 22:50:26,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:26,087 INFO L225 Difference]: With dead ends: 759 [2023-12-15 22:50:26,087 INFO L226 Difference]: Without dead ends: 384 [2023-12-15 22:50:26,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:50:26,091 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 8 mSDsluCounter, 1429 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1909 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:26,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1909 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:50:26,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2023-12-15 22:50:26,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2023-12-15 22:50:26,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 299 states have (on average 1.6321070234113713) internal successors, (488), 302 states have internal predecessors, (488), 62 states have call successors, (62), 21 states have call predecessors, (62), 22 states have return successors, (63), 60 states have call predecessors, (63), 61 states have call successors, (63) [2023-12-15 22:50:26,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 613 transitions. [2023-12-15 22:50:26,123 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 613 transitions. Word has length 95 [2023-12-15 22:50:26,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:26,123 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 613 transitions. [2023-12-15 22:50:26,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 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) [2023-12-15 22:50:26,123 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 613 transitions. [2023-12-15 22:50:26,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-15 22:50:26,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:26,126 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] [2023-12-15 22:50:26,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 22:50:26,332 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 [2023-12-15 22:50:26,333 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:26,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:26,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1792769235, now seen corresponding path program 1 times [2023-12-15 22:50:26,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:26,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093124659] [2023-12-15 22:50:26,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:26,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:26,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:26,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:26,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:26,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:26,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-15 22:50:26,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:26,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:50:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:26,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 22:50:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:26,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:50:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:26,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:50:26,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:26,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 22:50:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:26,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:50:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:26,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:50:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:26,489 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-15 22:50:26,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:26,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093124659] [2023-12-15 22:50:26,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093124659] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:50:26,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802750652] [2023-12-15 22:50:26,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:26,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:50:26,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:50:26,490 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) [2023-12-15 22:50:26,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 22:50:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:26,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 22:50:26,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:50:26,734 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-15 22:50:26,734 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:50:26,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802750652] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:26,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:50:26,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-15 22:50:26,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812793274] [2023-12-15 22:50:26,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:26,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:50:26,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:26,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:50:26,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:50:26,736 INFO L87 Difference]: Start difference. First operand 384 states and 613 transitions. Second operand has 5 states, 5 states have (on average 12.6) 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), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-15 22:50:26,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:26,799 INFO L93 Difference]: Finished difference Result 761 states and 1219 transitions. [2023-12-15 22:50:26,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:50:26,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) 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), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 96 [2023-12-15 22:50:26,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:26,801 INFO L225 Difference]: With dead ends: 761 [2023-12-15 22:50:26,801 INFO L226 Difference]: Without dead ends: 386 [2023-12-15 22:50:26,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-15 22:50:26,802 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 8 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1895 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:26,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1895 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:50:26,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2023-12-15 22:50:26,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2023-12-15 22:50:26,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 300 states have (on average 1.63) internal successors, (489), 304 states have internal predecessors, (489), 62 states have call successors, (62), 21 states have call predecessors, (62), 23 states have return successors, (68), 60 states have call predecessors, (68), 61 states have call successors, (68) [2023-12-15 22:50:26,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 619 transitions. [2023-12-15 22:50:26,814 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 619 transitions. Word has length 96 [2023-12-15 22:50:26,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:26,814 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 619 transitions. [2023-12-15 22:50:26,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) 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), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-12-15 22:50:26,814 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 619 transitions. [2023-12-15 22:50:26,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-15 22:50:26,816 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:26,816 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] [2023-12-15 22:50:26,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 22:50:27,022 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 [2023-12-15 22:50:27,022 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:27,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:27,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1224875969, now seen corresponding path program 1 times [2023-12-15 22:50:27,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:27,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910279492] [2023-12-15 22:50:27,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:27,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 22:50:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-15 22:50:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 22:50:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:50:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 22:50:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-15 22:50:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 22:50:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:27,149 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:50:27,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:27,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910279492] [2023-12-15 22:50:27,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910279492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:27,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:27,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:50:27,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237648151] [2023-12-15 22:50:27,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:27,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:50:27,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:27,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:50:27,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:50:27,151 INFO L87 Difference]: Start difference. First operand 386 states and 619 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 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) [2023-12-15 22:50:28,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:28,522 INFO L93 Difference]: Finished difference Result 834 states and 1360 transitions. [2023-12-15 22:50:28,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 22:50:28,523 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 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 97 [2023-12-15 22:50:28,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:28,526 INFO L225 Difference]: With dead ends: 834 [2023-12-15 22:50:28,526 INFO L226 Difference]: Without dead ends: 467 [2023-12-15 22:50:28,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:50:28,528 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 1093 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 2099 mSolverCounterSat, 312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 2411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 2099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:28,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 1145 Invalid, 2411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [312 Valid, 2099 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:50:28,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-12-15 22:50:28,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 386. [2023-12-15 22:50:28,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 300 states have (on average 1.63) internal successors, (489), 304 states have internal predecessors, (489), 62 states have call successors, (62), 21 states have call predecessors, (62), 23 states have return successors, (67), 60 states have call predecessors, (67), 61 states have call successors, (67) [2023-12-15 22:50:28,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 618 transitions. [2023-12-15 22:50:28,548 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 618 transitions. Word has length 97 [2023-12-15 22:50:28,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:28,548 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 618 transitions. [2023-12-15 22:50:28,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 5 states have internal predecessors, (59), 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) [2023-12-15 22:50:28,549 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 618 transitions. [2023-12-15 22:50:28,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-15 22:50:28,550 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:28,550 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] [2023-12-15 22:50:28,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 22:50:28,550 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:28,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:28,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1738010846, now seen corresponding path program 2 times [2023-12-15 22:50:28,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:28,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336366995] [2023-12-15 22:50:28,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:28,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 22:50:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 22:50:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-15 22:50:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:50:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 22:50:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 22:50:28,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:50:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:28,664 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:50:28,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:28,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336366995] [2023-12-15 22:50:28,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336366995] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:28,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:28,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:50:28,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362718514] [2023-12-15 22:50:28,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:28,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:50:28,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:28,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:50:28,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:50:28,665 INFO L87 Difference]: Start difference. First operand 386 states and 618 transitions. Second operand has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 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) [2023-12-15 22:50:29,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:29,923 INFO L93 Difference]: Finished difference Result 836 states and 1363 transitions. [2023-12-15 22:50:29,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 22:50:29,924 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 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 98 [2023-12-15 22:50:29,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:29,927 INFO L225 Difference]: With dead ends: 836 [2023-12-15 22:50:29,928 INFO L226 Difference]: Without dead ends: 469 [2023-12-15 22:50:29,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:50:29,931 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 1089 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 2408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:29,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 1145 Invalid, 2408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 22:50:29,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-12-15 22:50:29,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 388. [2023-12-15 22:50:29,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 301 states have (on average 1.627906976744186) internal successors, (490), 306 states have internal predecessors, (490), 62 states have call successors, (62), 21 states have call predecessors, (62), 24 states have return successors, (69), 60 states have call predecessors, (69), 61 states have call successors, (69) [2023-12-15 22:50:29,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 621 transitions. [2023-12-15 22:50:29,954 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 621 transitions. Word has length 98 [2023-12-15 22:50:29,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:29,954 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 621 transitions. [2023-12-15 22:50:29,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.5) internal successors, (60), 5 states have internal predecessors, (60), 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) [2023-12-15 22:50:29,954 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 621 transitions. [2023-12-15 22:50:29,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-15 22:50:29,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:29,955 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] [2023-12-15 22:50:29,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 22:50:29,956 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:29,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:29,956 INFO L85 PathProgramCache]: Analyzing trace with hash -2138605914, now seen corresponding path program 1 times [2023-12-15 22:50:29,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:29,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178211359] [2023-12-15 22:50:29,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:29,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:30,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:30,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:50:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 22:50:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:50:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:50:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:50:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:50:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:30,124 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-15 22:50:30,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:30,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178211359] [2023-12-15 22:50:30,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178211359] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:30,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:30,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 22:50:30,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741348848] [2023-12-15 22:50:30,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:30,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 22:50:30,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:30,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 22:50:30,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:50:30,126 INFO L87 Difference]: Start difference. First operand 388 states and 621 transitions. Second operand has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 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) [2023-12-15 22:50:31,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:31,883 INFO L93 Difference]: Finished difference Result 834 states and 1358 transitions. [2023-12-15 22:50:31,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 22:50:31,884 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 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 99 [2023-12-15 22:50:31,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:31,886 INFO L225 Difference]: With dead ends: 834 [2023-12-15 22:50:31,886 INFO L226 Difference]: Without dead ends: 469 [2023-12-15 22:50:31,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-15 22:50:31,887 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 1097 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 3503 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 3822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 3503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:31,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1098 Valid, 1586 Invalid, 3822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 3503 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 22:50:31,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-12-15 22:50:31,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 388. [2023-12-15 22:50:31,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 301 states have (on average 1.627906976744186) internal successors, (490), 306 states have internal predecessors, (490), 62 states have call successors, (62), 21 states have call predecessors, (62), 24 states have return successors, (68), 60 states have call predecessors, (68), 61 states have call successors, (68) [2023-12-15 22:50:31,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 620 transitions. [2023-12-15 22:50:31,904 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 620 transitions. Word has length 99 [2023-12-15 22:50:31,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:31,904 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 620 transitions. [2023-12-15 22:50:31,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 8 states have internal predecessors, (64), 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) [2023-12-15 22:50:31,904 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 620 transitions. [2023-12-15 22:50:31,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-15 22:50:31,905 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:31,905 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] [2023-12-15 22:50:31,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 22:50:31,906 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:31,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:31,906 INFO L85 PathProgramCache]: Analyzing trace with hash -4453462, now seen corresponding path program 2 times [2023-12-15 22:50:31,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:31,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155932033] [2023-12-15 22:50:31,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:31,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:31,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:31,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-15 22:50:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 22:50:32,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:50:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 22:50:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:50:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-15 22:50:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:32,080 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-15 22:50:32,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:32,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155932033] [2023-12-15 22:50:32,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155932033] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:32,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:32,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 22:50:32,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024475082] [2023-12-15 22:50:32,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:32,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 22:50:32,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:32,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 22:50:32,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:50:32,082 INFO L87 Difference]: Start difference. First operand 388 states and 620 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 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) [2023-12-15 22:50:33,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:33,896 INFO L93 Difference]: Finished difference Result 836 states and 1364 transitions. [2023-12-15 22:50:33,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 22:50:33,897 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 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 100 [2023-12-15 22:50:33,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:33,899 INFO L225 Difference]: With dead ends: 836 [2023-12-15 22:50:33,899 INFO L226 Difference]: Without dead ends: 471 [2023-12-15 22:50:33,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-15 22:50:33,902 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 1091 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 3570 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 1586 SdHoareTripleChecker+Invalid, 3881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 3570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:33,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 1586 Invalid, 3881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 3570 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 22:50:33,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-12-15 22:50:33,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 390. [2023-12-15 22:50:33,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 302 states have (on average 1.6258278145695364) internal successors, (491), 308 states have internal predecessors, (491), 62 states have call successors, (62), 21 states have call predecessors, (62), 25 states have return successors, (73), 60 states have call predecessors, (73), 61 states have call successors, (73) [2023-12-15 22:50:33,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 626 transitions. [2023-12-15 22:50:33,919 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 626 transitions. Word has length 100 [2023-12-15 22:50:33,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:33,919 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 626 transitions. [2023-12-15 22:50:33,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 8 states have internal predecessors, (65), 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) [2023-12-15 22:50:33,920 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 626 transitions. [2023-12-15 22:50:33,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-15 22:50:33,921 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:33,921 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] [2023-12-15 22:50:33,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 22:50:33,922 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:33,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:33,922 INFO L85 PathProgramCache]: Analyzing trace with hash 191248811, now seen corresponding path program 1 times [2023-12-15 22:50:33,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:33,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335022442] [2023-12-15 22:50:33,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:33,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:33,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:34,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:34,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:50:34,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-15 22:50:34,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:50:34,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:50:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 22:50:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:50:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,035 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:34,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:34,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335022442] [2023-12-15 22:50:34,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335022442] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:50:34,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246251011] [2023-12-15 22:50:34,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:34,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:50:34,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:50:34,037 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) [2023-12-15 22:50:34,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 22:50:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:34,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:50:34,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:50:34,252 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:34,252 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:50:34,299 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:34,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246251011] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:50:34,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:50:34,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2023-12-15 22:50:34,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995010956] [2023-12-15 22:50:34,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:50:34,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 22:50:34,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:34,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 22:50:34,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-15 22:50:34,302 INFO L87 Difference]: Start difference. First operand 390 states and 626 transitions. Second operand has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 7 states have internal predecessors, (90), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-15 22:50:35,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:35,707 INFO L93 Difference]: Finished difference Result 1010 states and 1720 transitions. [2023-12-15 22:50:35,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 22:50:35,707 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 7 states have internal predecessors, (90), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 101 [2023-12-15 22:50:35,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:35,711 INFO L225 Difference]: With dead ends: 1010 [2023-12-15 22:50:35,712 INFO L226 Difference]: Without dead ends: 871 [2023-12-15 22:50:35,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:50:35,713 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 1553 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 2230 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1607 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 2725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 2230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:35,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1607 Valid, 1414 Invalid, 2725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 2230 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:50:35,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2023-12-15 22:50:35,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 775. [2023-12-15 22:50:35,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 608 states have (on average 1.6710526315789473) internal successors, (1016), 614 states have internal predecessors, (1016), 141 states have call successors, (141), 21 states have call predecessors, (141), 25 states have return successors, (162), 139 states have call predecessors, (162), 140 states have call successors, (162) [2023-12-15 22:50:35,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1319 transitions. [2023-12-15 22:50:35,739 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1319 transitions. Word has length 101 [2023-12-15 22:50:35,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:35,739 INFO L495 AbstractCegarLoop]: Abstraction has 775 states and 1319 transitions. [2023-12-15 22:50:35,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 7 states have internal predecessors, (90), 2 states have call successors, (30), 6 states have call predecessors, (30), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-15 22:50:35,740 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1319 transitions. [2023-12-15 22:50:35,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-15 22:50:35,742 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:35,742 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] [2023-12-15 22:50:35,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-15 22:50:35,950 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 [2023-12-15 22:50:35,951 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:35,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:35,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1434185208, now seen corresponding path program 1 times [2023-12-15 22:50:35,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:35,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842212736] [2023-12-15 22:50:35,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:35,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:35,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-15 22:50:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:50:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 22:50:36,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 22:50:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:50:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:50:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:36,031 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:36,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:36,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842212736] [2023-12-15 22:50:36,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842212736] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:36,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:36,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:36,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015813859] [2023-12-15 22:50:36,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:36,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:36,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:36,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:36,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:36,033 INFO L87 Difference]: Start difference. First operand 775 states and 1319 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) [2023-12-15 22:50:37,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:37,128 INFO L93 Difference]: Finished difference Result 1958 states and 3415 transitions. [2023-12-15 22:50:37,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:37,128 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 [2023-12-15 22:50:37,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:37,134 INFO L225 Difference]: With dead ends: 1958 [2023-12-15 22:50:37,134 INFO L226 Difference]: Without dead ends: 1243 [2023-12-15 22:50:37,137 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 [2023-12-15 22:50:37,137 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 1202 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 380 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 1583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 380 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:37,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 870 Invalid, 1583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [380 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 22:50:37,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2023-12-15 22:50:37,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1157. [2023-12-15 22:50:37,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 911 states have (on average 1.677277716794731) internal successors, (1528), 917 states have internal predecessors, (1528), 220 states have call successors, (220), 21 states have call predecessors, (220), 25 states have return successors, (251), 218 states have call predecessors, (251), 219 states have call successors, (251) [2023-12-15 22:50:37,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1999 transitions. [2023-12-15 22:50:37,172 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1999 transitions. Word has length 107 [2023-12-15 22:50:37,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:37,172 INFO L495 AbstractCegarLoop]: Abstraction has 1157 states and 1999 transitions. [2023-12-15 22:50:37,172 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) [2023-12-15 22:50:37,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1999 transitions. [2023-12-15 22:50:37,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-15 22:50:37,176 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:37,176 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] [2023-12-15 22:50:37,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 22:50:37,177 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:37,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:37,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1881964304, now seen corresponding path program 1 times [2023-12-15 22:50:37,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:37,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042308681] [2023-12-15 22:50:37,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:37,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:37,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:37,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:37,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:37,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:37,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:37,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:37,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:37,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:37,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:50:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:37,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:50:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:37,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 22:50:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:37,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:50:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:37,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:50:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:37,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 22:50:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:37,252 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:37,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:37,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042308681] [2023-12-15 22:50:37,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042308681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:37,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:37,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:37,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474120942] [2023-12-15 22:50:37,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:37,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:37,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:37,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:37,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:37,253 INFO L87 Difference]: Start difference. First operand 1157 states and 1999 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) [2023-12-15 22:50:38,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:38,339 INFO L93 Difference]: Finished difference Result 2889 states and 5071 transitions. [2023-12-15 22:50:38,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:38,339 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 [2023-12-15 22:50:38,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:38,347 INFO L225 Difference]: With dead ends: 2889 [2023-12-15 22:50:38,347 INFO L226 Difference]: Without dead ends: 1842 [2023-12-15 22:50:38,350 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 [2023-12-15 22:50:38,351 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 1201 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:38,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 850 Invalid, 1571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 22:50:38,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1842 states. [2023-12-15 22:50:38,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1842 to 1756. [2023-12-15 22:50:38,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1756 states, 1391 states have (on average 1.6808051761322789) internal successors, (2338), 1397 states have internal predecessors, (2338), 339 states have call successors, (339), 21 states have call predecessors, (339), 25 states have return successors, (370), 337 states have call predecessors, (370), 338 states have call successors, (370) [2023-12-15 22:50:38,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1756 states to 1756 states and 3047 transitions. [2023-12-15 22:50:38,404 INFO L78 Accepts]: Start accepts. Automaton has 1756 states and 3047 transitions. Word has length 108 [2023-12-15 22:50:38,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:38,405 INFO L495 AbstractCegarLoop]: Abstraction has 1756 states and 3047 transitions. [2023-12-15 22:50:38,405 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) [2023-12-15 22:50:38,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1756 states and 3047 transitions. [2023-12-15 22:50:38,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-15 22:50:38,411 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:38,411 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] [2023-12-15 22:50:38,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 22:50:38,411 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:38,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:38,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1575051754, now seen corresponding path program 1 times [2023-12-15 22:50:38,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:38,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860983764] [2023-12-15 22:50:38,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:38,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:38,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:38,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-15 22:50:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:50:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 22:50:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 22:50:38,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 22:50:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-15 22:50:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:38,480 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:38,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:38,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860983764] [2023-12-15 22:50:38,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860983764] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:38,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:38,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:38,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368451448] [2023-12-15 22:50:38,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:38,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:38,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:38,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:38,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:38,482 INFO L87 Difference]: Start difference. First operand 1756 states and 3047 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) [2023-12-15 22:50:39,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:39,556 INFO L93 Difference]: Finished difference Result 4285 states and 7576 transitions. [2023-12-15 22:50:39,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:39,557 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 [2023-12-15 22:50:39,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:39,576 INFO L225 Difference]: With dead ends: 4285 [2023-12-15 22:50:39,576 INFO L226 Difference]: Without dead ends: 2759 [2023-12-15 22:50:39,583 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 [2023-12-15 22:50:39,583 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 1198 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 1178 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 1559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 1178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:39,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 842 Invalid, 1559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 1178 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 22:50:39,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2023-12-15 22:50:39,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 2673. [2023-12-15 22:50:39,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2673 states, 2146 states have (on average 1.68452935694315) internal successors, (3615), 2152 states have internal predecessors, (3615), 501 states have call successors, (501), 21 states have call predecessors, (501), 25 states have return successors, (548), 499 states have call predecessors, (548), 500 states have call successors, (548) [2023-12-15 22:50:39,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2673 states to 2673 states and 4664 transitions. [2023-12-15 22:50:39,686 INFO L78 Accepts]: Start accepts. Automaton has 2673 states and 4664 transitions. Word has length 109 [2023-12-15 22:50:39,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:39,686 INFO L495 AbstractCegarLoop]: Abstraction has 2673 states and 4664 transitions. [2023-12-15 22:50:39,686 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) [2023-12-15 22:50:39,687 INFO L276 IsEmpty]: Start isEmpty. Operand 2673 states and 4664 transitions. [2023-12-15 22:50:39,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-15 22:50:39,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:39,695 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] [2023-12-15 22:50:39,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 22:50:39,695 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:39,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:39,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1213738353, now seen corresponding path program 1 times [2023-12-15 22:50:39,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:39,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107279203] [2023-12-15 22:50:39,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:39,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:39,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:39,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:39,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:39,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:39,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:39,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:39,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:39,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 22:50:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:39,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:50:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:39,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:50:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:39,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:50:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:39,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 22:50:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:39,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 22:50:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:39,764 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:39,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:39,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107279203] [2023-12-15 22:50:39,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107279203] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:39,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:39,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:39,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599951582] [2023-12-15 22:50:39,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:39,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:39,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:39,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:39,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:39,766 INFO L87 Difference]: Start difference. First operand 2673 states and 4664 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) [2023-12-15 22:50:40,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:40,784 INFO L93 Difference]: Finished difference Result 6485 states and 11536 transitions. [2023-12-15 22:50:40,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:40,785 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 [2023-12-15 22:50:40,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:40,802 INFO L225 Difference]: With dead ends: 6485 [2023-12-15 22:50:40,802 INFO L226 Difference]: Without dead ends: 4239 [2023-12-15 22:50:40,809 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 [2023-12-15 22:50:40,810 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 1199 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 1164 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 1164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:40,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 841 Invalid, 1542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 1164 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 22:50:40,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4239 states. [2023-12-15 22:50:40,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4239 to 4153. [2023-12-15 22:50:40,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4153 states, 3381 states have (on average 1.6873706004140787) internal successors, (5705), 3387 states have internal predecessors, (5705), 746 states have call successors, (746), 21 states have call predecessors, (746), 25 states have return successors, (819), 744 states have call predecessors, (819), 745 states have call successors, (819) [2023-12-15 22:50:40,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4153 states to 4153 states and 7270 transitions. [2023-12-15 22:50:40,946 INFO L78 Accepts]: Start accepts. Automaton has 4153 states and 7270 transitions. Word has length 110 [2023-12-15 22:50:40,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:40,946 INFO L495 AbstractCegarLoop]: Abstraction has 4153 states and 7270 transitions. [2023-12-15 22:50:40,946 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) [2023-12-15 22:50:40,947 INFO L276 IsEmpty]: Start isEmpty. Operand 4153 states and 7270 transitions. [2023-12-15 22:50:40,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-15 22:50:40,955 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:40,956 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] [2023-12-15 22:50:40,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 22:50:40,956 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:40,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:40,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1696292070, now seen corresponding path program 1 times [2023-12-15 22:50:40,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:40,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908316580] [2023-12-15 22:50:40,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:40,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:40,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:40,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:40,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:41,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 22:50:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:50:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 22:50:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:50:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-15 22:50:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 22:50:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:41,023 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:41,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:41,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908316580] [2023-12-15 22:50:41,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908316580] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:41,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:41,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:41,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628297765] [2023-12-15 22:50:41,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:41,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:41,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:41,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:41,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:41,025 INFO L87 Difference]: Start difference. First operand 4153 states and 7270 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) [2023-12-15 22:50:42,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:42,160 INFO L93 Difference]: Finished difference Result 10414 states and 18561 transitions. [2023-12-15 22:50:42,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:42,160 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 [2023-12-15 22:50:42,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:42,188 INFO L225 Difference]: With dead ends: 10414 [2023-12-15 22:50:42,188 INFO L226 Difference]: Without dead ends: 6911 [2023-12-15 22:50:42,197 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 [2023-12-15 22:50:42,198 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 1196 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 1611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:42,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1215 Valid, 891 Invalid, 1611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 22:50:42,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6911 states. [2023-12-15 22:50:42,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6911 to 6825. [2023-12-15 22:50:42,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6825 states, 5560 states have (on average 1.681474820143885) internal successors, (9349), 5566 states have internal predecessors, (9349), 1239 states have call successors, (1239), 21 states have call predecessors, (1239), 25 states have return successors, (1356), 1237 states have call predecessors, (1356), 1238 states have call successors, (1356) [2023-12-15 22:50:42,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6825 states to 6825 states and 11944 transitions. [2023-12-15 22:50:42,395 INFO L78 Accepts]: Start accepts. Automaton has 6825 states and 11944 transitions. Word has length 111 [2023-12-15 22:50:42,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:42,395 INFO L495 AbstractCegarLoop]: Abstraction has 6825 states and 11944 transitions. [2023-12-15 22:50:42,396 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) [2023-12-15 22:50:42,396 INFO L276 IsEmpty]: Start isEmpty. Operand 6825 states and 11944 transitions. [2023-12-15 22:50:42,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-15 22:50:42,409 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:42,409 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] [2023-12-15 22:50:42,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 22:50:42,409 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:42,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:42,409 INFO L85 PathProgramCache]: Analyzing trace with hash 2069225077, now seen corresponding path program 1 times [2023-12-15 22:50:42,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:42,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164852717] [2023-12-15 22:50:42,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:42,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:42,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:42,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:42,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:42,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:42,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:42,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:42,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:50:42,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:42,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:50:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:42,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:50:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:42,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-15 22:50:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:42,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-15 22:50:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:42,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-15 22:50:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:42,521 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:42,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:42,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164852717] [2023-12-15 22:50:42,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164852717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:42,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:42,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:42,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349472828] [2023-12-15 22:50:42,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:42,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:42,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:42,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:42,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:42,523 INFO L87 Difference]: Start difference. First operand 6825 states and 11944 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) [2023-12-15 22:50:43,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:43,640 INFO L93 Difference]: Finished difference Result 17393 states and 30972 transitions. [2023-12-15 22:50:43,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:43,641 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 [2023-12-15 22:50:43,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:43,697 INFO L225 Difference]: With dead ends: 17393 [2023-12-15 22:50:43,697 INFO L226 Difference]: Without dead ends: 11584 [2023-12-15 22:50:43,710 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 [2023-12-15 22:50:43,711 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 1192 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 1569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:43,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 849 Invalid, 1569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 22:50:43,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11584 states. [2023-12-15 22:50:43,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11584 to 11498. [2023-12-15 22:50:44,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11498 states, 9411 states have (on average 1.6805865476569972) internal successors, (15816), 9417 states have internal predecessors, (15816), 2061 states have call successors, (2061), 21 states have call predecessors, (2061), 25 states have return successors, (2256), 2059 states have call predecessors, (2256), 2060 states have call successors, (2256) [2023-12-15 22:50:44,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11498 states to 11498 states and 20133 transitions. [2023-12-15 22:50:44,034 INFO L78 Accepts]: Start accepts. Automaton has 11498 states and 20133 transitions. Word has length 112 [2023-12-15 22:50:44,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:44,034 INFO L495 AbstractCegarLoop]: Abstraction has 11498 states and 20133 transitions. [2023-12-15 22:50:44,034 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) [2023-12-15 22:50:44,034 INFO L276 IsEmpty]: Start isEmpty. Operand 11498 states and 20133 transitions. [2023-12-15 22:50:44,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-15 22:50:44,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:44,049 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] [2023-12-15 22:50:44,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 22:50:44,050 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:44,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:44,050 INFO L85 PathProgramCache]: Analyzing trace with hash 152698536, now seen corresponding path program 1 times [2023-12-15 22:50:44,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:44,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248024765] [2023-12-15 22:50:44,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:44,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:50:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:50:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:50:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:50:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:50:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 22:50:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:44,113 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:44,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:44,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248024765] [2023-12-15 22:50:44,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248024765] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:44,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:44,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:44,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71788075] [2023-12-15 22:50:44,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:44,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:44,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:44,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:44,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:44,115 INFO L87 Difference]: Start difference. First operand 11498 states and 20133 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) [2023-12-15 22:50:45,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:45,337 INFO L93 Difference]: Finished difference Result 27519 states and 48790 transitions. [2023-12-15 22:50:45,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:45,338 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 [2023-12-15 22:50:45,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:45,388 INFO L225 Difference]: With dead ends: 27519 [2023-12-15 22:50:45,388 INFO L226 Difference]: Without dead ends: 17968 [2023-12-15 22:50:45,412 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 [2023-12-15 22:50:45,412 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 1191 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:45,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1209 Valid, 828 Invalid, 1585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 22:50:45,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17968 states. [2023-12-15 22:50:45,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17968 to 17882. [2023-12-15 22:50:45,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17882 states, 14592 states have (on average 1.6565926535087718) internal successors, (24173), 14598 states have internal predecessors, (24173), 3264 states have call successors, (3264), 21 states have call predecessors, (3264), 25 states have return successors, (3603), 3262 states have call predecessors, (3603), 3263 states have call successors, (3603) [2023-12-15 22:50:45,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17882 states to 17882 states and 31040 transitions. [2023-12-15 22:50:45,935 INFO L78 Accepts]: Start accepts. Automaton has 17882 states and 31040 transitions. Word has length 113 [2023-12-15 22:50:45,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:45,935 INFO L495 AbstractCegarLoop]: Abstraction has 17882 states and 31040 transitions. [2023-12-15 22:50:45,935 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) [2023-12-15 22:50:45,935 INFO L276 IsEmpty]: Start isEmpty. Operand 17882 states and 31040 transitions. [2023-12-15 22:50:45,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-15 22:50:45,952 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:45,952 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] [2023-12-15 22:50:45,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 22:50:45,953 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:45,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:45,953 INFO L85 PathProgramCache]: Analyzing trace with hash 160034934, now seen corresponding path program 1 times [2023-12-15 22:50:45,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:45,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867852213] [2023-12-15 22:50:45,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:45,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:45,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:45,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:45,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:45,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:45,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:45,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:46,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:50:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:46,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 22:50:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:46,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-15 22:50:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:46,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:50:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:46,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 22:50:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:46,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 22:50:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:46,012 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:46,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:46,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867852213] [2023-12-15 22:50:46,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867852213] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:46,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:46,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:46,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944398420] [2023-12-15 22:50:46,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:46,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:46,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:46,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:46,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:46,014 INFO L87 Difference]: Start difference. First operand 17882 states and 31040 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) [2023-12-15 22:50:47,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:47,551 INFO L93 Difference]: Finished difference Result 47344 states and 83697 transitions. [2023-12-15 22:50:47,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:47,552 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 [2023-12-15 22:50:47,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:47,656 INFO L225 Difference]: With dead ends: 47344 [2023-12-15 22:50:47,656 INFO L226 Difference]: Without dead ends: 32001 [2023-12-15 22:50:47,692 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 [2023-12-15 22:50:47,693 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 1190 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 1555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:47,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1209 Valid, 842 Invalid, 1555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 22:50:47,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32001 states. [2023-12-15 22:50:48,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32001 to 31915. [2023-12-15 22:50:48,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31915 states, 26175 states have (on average 1.6533715377268385) internal successors, (43277), 26181 states have internal predecessors, (43277), 5714 states have call successors, (5714), 21 states have call predecessors, (5714), 25 states have return successors, (6327), 5712 states have call predecessors, (6327), 5713 states have call successors, (6327) [2023-12-15 22:50:48,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31915 states to 31915 states and 55318 transitions. [2023-12-15 22:50:48,662 INFO L78 Accepts]: Start accepts. Automaton has 31915 states and 55318 transitions. Word has length 114 [2023-12-15 22:50:48,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:48,663 INFO L495 AbstractCegarLoop]: Abstraction has 31915 states and 55318 transitions. [2023-12-15 22:50:48,663 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) [2023-12-15 22:50:48,663 INFO L276 IsEmpty]: Start isEmpty. Operand 31915 states and 55318 transitions. [2023-12-15 22:50:48,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 22:50:48,681 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:48,681 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] [2023-12-15 22:50:48,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 22:50:48,681 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:48,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:48,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1832856190, now seen corresponding path program 1 times [2023-12-15 22:50:48,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:48,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907642079] [2023-12-15 22:50:48,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:48,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:48,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:48,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:50:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 22:50:48,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 22:50:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 22:50:48,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-15 22:50:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-15 22:50:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:48,752 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:48,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:48,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907642079] [2023-12-15 22:50:48,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907642079] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:48,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:48,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:48,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996499329] [2023-12-15 22:50:48,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:48,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:48,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:48,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:48,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:48,754 INFO L87 Difference]: Start difference. First operand 31915 states and 55318 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) [2023-12-15 22:50:50,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:50,937 INFO L93 Difference]: Finished difference Result 87066 states and 153156 transitions. [2023-12-15 22:50:50,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:50,937 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 [2023-12-15 22:50:50,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:51,124 INFO L225 Difference]: With dead ends: 87066 [2023-12-15 22:50:51,125 INFO L226 Difference]: Without dead ends: 58549 [2023-12-15 22:50:51,187 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 [2023-12-15 22:50:51,187 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 1185 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 1589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:51,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1203 Valid, 851 Invalid, 1589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 22:50:51,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58549 states. [2023-12-15 22:50:52,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58549 to 58463. [2023-12-15 22:50:52,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58463 states, 48210 states have (on average 1.6492636382493258) internal successors, (79511), 48216 states have internal predecessors, (79511), 10227 states have call successors, (10227), 21 states have call predecessors, (10227), 25 states have return successors, (11372), 10225 states have call predecessors, (11372), 10226 states have call successors, (11372) [2023-12-15 22:50:53,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58463 states to 58463 states and 101110 transitions. [2023-12-15 22:50:53,062 INFO L78 Accepts]: Start accepts. Automaton has 58463 states and 101110 transitions. Word has length 115 [2023-12-15 22:50:53,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:53,062 INFO L495 AbstractCegarLoop]: Abstraction has 58463 states and 101110 transitions. [2023-12-15 22:50:53,063 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) [2023-12-15 22:50:53,063 INFO L276 IsEmpty]: Start isEmpty. Operand 58463 states and 101110 transitions. [2023-12-15 22:50:53,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-15 22:50:53,081 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:53,081 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] [2023-12-15 22:50:53,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 22:50:53,082 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:53,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:53,082 INFO L85 PathProgramCache]: Analyzing trace with hash 721182806, now seen corresponding path program 1 times [2023-12-15 22:50:53,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:53,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650941266] [2023-12-15 22:50:53,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:53,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:50:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 22:50:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:50:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 22:50:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 22:50:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-15 22:50:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:53,161 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:53,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:53,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650941266] [2023-12-15 22:50:53,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650941266] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:53,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:53,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:50:53,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870789548] [2023-12-15 22:50:53,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:53,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:50:53,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:53,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:50:53,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:50:53,163 INFO L87 Difference]: Start difference. First operand 58463 states and 101110 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) [2023-12-15 22:50:56,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:50:56,034 INFO L93 Difference]: Finished difference Result 109390 states and 192967 transitions. [2023-12-15 22:50:56,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:50:56,035 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 [2023-12-15 22:50:56,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:50:56,503 INFO L225 Difference]: With dead ends: 109390 [2023-12-15 22:50:56,504 INFO L226 Difference]: Without dead ends: 109251 [2023-12-15 22:50:56,534 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 [2023-12-15 22:50:56,535 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 1183 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 22:50:56,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 843 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 22:50:56,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109251 states. [2023-12-15 22:50:59,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109251 to 109165. [2023-12-15 22:50:59,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109165 states, 90544 states have (on average 1.644084643930023) internal successors, (148862), 90550 states have internal predecessors, (148862), 18595 states have call successors, (18595), 21 states have call predecessors, (18595), 25 states have return successors, (20786), 18593 states have call predecessors, (20786), 18594 states have call successors, (20786) [2023-12-15 22:50:59,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109165 states to 109165 states and 188243 transitions. [2023-12-15 22:50:59,816 INFO L78 Accepts]: Start accepts. Automaton has 109165 states and 188243 transitions. Word has length 116 [2023-12-15 22:50:59,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:50:59,816 INFO L495 AbstractCegarLoop]: Abstraction has 109165 states and 188243 transitions. [2023-12-15 22:50:59,816 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) [2023-12-15 22:50:59,816 INFO L276 IsEmpty]: Start isEmpty. Operand 109165 states and 188243 transitions. [2023-12-15 22:50:59,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-15 22:50:59,838 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:50:59,838 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] [2023-12-15 22:50:59,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-15 22:50:59,838 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:50:59,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:50:59,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1773031423, now seen corresponding path program 1 times [2023-12-15 22:50:59,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:50:59,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053890827] [2023-12-15 22:50:59,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:50:59,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:50:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:59,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:50:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:59,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:50:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:59,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:50:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:59,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:50:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:59,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:50:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:59,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:50:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:59,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:50:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:59,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:50:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:59,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:50:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:59,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-15 22:50:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:59,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 22:50:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:59,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-15 22:50:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:50:59,981 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-15 22:50:59,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:50:59,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053890827] [2023-12-15 22:50:59,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053890827] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:50:59,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:50:59,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 22:50:59,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050988730] [2023-12-15 22:50:59,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:50:59,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 22:50:59,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:50:59,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 22:50:59,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:50:59,982 INFO L87 Difference]: Start difference. First operand 109165 states and 188243 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) [2023-12-15 22:51:03,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:51:03,545 INFO L93 Difference]: Finished difference Result 109244 states and 191662 transitions. [2023-12-15 22:51:03,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 22:51:03,545 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 [2023-12-15 22:51:03,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:51:03,545 INFO L225 Difference]: With dead ends: 109244 [2023-12-15 22:51:03,545 INFO L226 Difference]: Without dead ends: 0 [2023-12-15 22:51:03,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2023-12-15 22:51:03,671 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 1209 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 2470 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 2781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 2470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 22:51:03,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 1175 Invalid, 2781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 2470 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 22:51:03,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-15 22:51:03,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-15 22:51:03,672 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) [2023-12-15 22:51:03,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-15 22:51:03,682 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 117 [2023-12-15 22:51:03,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:51:03,682 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-15 22:51:03,682 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) [2023-12-15 22:51:03,682 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-15 22:51:03,683 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-15 22:51:03,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:51:03,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-15 22:51:03,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. Received shutdown request... [2023-12-15 22:51:19,538 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 [2023-12-15 22:51:19,562 WARN L619 AbstractCegarLoop]: Verification canceled: while PolyPacSimplificationTermWalker was simplifying a ∨-1092-13-1 term,while PolyPacSimplificationTermWalker was simplifying 8 xjuncts wrt. a ∧-1091-13-1 context. [2023-12-15 22:51:19,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-15 22:51:19,605 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-12-15 22:51:19,606 INFO L158 Benchmark]: Toolchain (without parser) took 58478.63ms. Allocated memory was 235.9MB in the beginning and 5.5GB in the end (delta: 5.2GB). Free memory was 192.5MB in the beginning and 3.8GB in the end (delta: -3.6GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-15 22:51:19,607 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 196.1MB. Free memory is still 140.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:51:19,607 INFO L158 Benchmark]: CACSL2BoogieTranslator took 553.80ms. Allocated memory is still 235.9MB. Free memory was 192.5MB in the beginning and 151.6MB in the end (delta: 40.9MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. [2023-12-15 22:51:19,607 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.47ms. Allocated memory is still 235.9MB. Free memory was 151.1MB in the beginning and 145.9MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-15 22:51:19,607 INFO L158 Benchmark]: Boogie Preprocessor took 80.18ms. Allocated memory is still 235.9MB. Free memory was 145.9MB in the beginning and 139.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-15 22:51:19,607 INFO L158 Benchmark]: RCFGBuilder took 838.91ms. Allocated memory is still 235.9MB. Free memory was 139.6MB in the beginning and 154.2MB in the end (delta: -14.7MB). Peak memory consumption was 35.1MB. Max. memory is 8.0GB. [2023-12-15 22:51:19,608 INFO L158 Benchmark]: TraceAbstraction took 56902.68ms. Allocated memory was 235.9MB in the beginning and 5.5GB in the end (delta: 5.2GB). Free memory was 153.2MB in the beginning and 3.8GB in the end (delta: -3.7GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-15 22:51:19,609 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 196.1MB. Free memory is still 140.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 553.80ms. Allocated memory is still 235.9MB. Free memory was 192.5MB in the beginning and 151.6MB in the end (delta: 40.9MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 98.47ms. Allocated memory is still 235.9MB. Free memory was 151.1MB in the beginning and 145.9MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 80.18ms. Allocated memory is still 235.9MB. Free memory was 145.9MB in the beginning and 139.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 838.91ms. Allocated memory is still 235.9MB. Free memory was 139.6MB in the beginning and 154.2MB in the end (delta: -14.7MB). Peak memory consumption was 35.1MB. Max. memory is 8.0GB. * TraceAbstraction took 56902.68ms. Allocated memory was 235.9MB in the beginning and 5.5GB in the end (delta: 5.2GB). Free memory was 153.2MB in the beginning and 3.8GB in the end (delta: -3.7GB). Peak memory consumption was 1.6GB. 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,"EncryptVerify_spec.i","") [48] - GenericResultAtLocation [Line: 79]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [79] - GenericResultAtLocation [Line: 445]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [445] - GenericResultAtLocation [Line: 463]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [463] - GenericResultAtLocation [Line: 1543]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1543] - GenericResultAtLocation [Line: 1955]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1955] - GenericResultAtLocation [Line: 2053]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2053] - GenericResultAtLocation [Line: 2091]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2091] - GenericResultAtLocation [Line: 2100]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2100] - GenericResultAtLocation [Line: 2325]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2325] - GenericResultAtLocation [Line: 2610]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2610] * 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 ∧-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown