/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 05:36:12,535 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 05:36:12,604 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 05:36:12,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 05:36:12,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 05:36:12,626 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 05:36:12,627 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 05:36:12,627 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 05:36:12,627 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 05:36:12,627 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 05:36:12,628 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 05:36:12,628 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 05:36:12,628 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 05:36:12,628 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 05:36:12,629 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 05:36:12,629 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 05:36:12,629 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 05:36:12,629 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 05:36:12,629 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 05:36:12,630 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 05:36:12,630 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 05:36:12,630 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 05:36:12,630 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 05:36:12,631 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 05:36:12,631 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 05:36:12,631 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 05:36:12,631 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 05:36:12,631 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 05:36:12,632 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 05:36:12,632 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 05:36:12,632 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 05:36:12,632 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 05:36:12,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:36:12,633 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 05:36:12,633 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 05:36:12,633 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 05:36:12,633 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 05:36:12,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 05:36:12,633 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 05:36:12,634 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 05:36:12,634 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 05:36:12,634 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 05:36:12,634 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 05:36:12,634 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 05:36:12,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 05:36:12,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 05:36:12,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 05:36:12,836 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 05:36:12,836 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 05:36:12,837 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product32.cil.c [2023-12-16 05:36:14,201 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 05:36:14,452 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 05:36:14,452 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product32.cil.c [2023-12-16 05:36:14,470 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b258314a6/afcef5c48cc04d6191b5b30cab93ca6b/FLAGb7b195a86 [2023-12-16 05:36:14,506 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b258314a6/afcef5c48cc04d6191b5b30cab93ca6b [2023-12-16 05:36:14,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 05:36:14,515 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 05:36:14,516 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 05:36:14,516 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 05:36:14,520 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 05:36:14,520 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:36:14" (1/1) ... [2023-12-16 05:36:14,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2862608f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:14, skipping insertion in model container [2023-12-16 05:36:14,521 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:36:14" (1/1) ... [2023-12-16 05:36:14,635 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 05:36:14,776 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_spec3_product32.cil.c[1542,1555] [2023-12-16 05:36:15,092 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:36:15,104 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 05:36:15,110 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2023-12-16 05:36:15,112 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [57] [2023-12-16 05:36:15,112 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [106] [2023-12-16 05:36:15,112 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [541] [2023-12-16 05:36:15,112 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [558] [2023-12-16 05:36:15,113 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [787] [2023-12-16 05:36:15,113 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [845] [2023-12-16 05:36:15,113 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1917] [2023-12-16 05:36:15,114 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2205] [2023-12-16 05:36:15,114 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2343] [2023-12-16 05:36:15,114 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2740] [2023-12-16 05:36:15,118 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_spec3_product32.cil.c[1542,1555] [2023-12-16 05:36:15,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:36:15,229 INFO L206 MainTranslator]: Completed translation [2023-12-16 05:36:15,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:15 WrapperNode [2023-12-16 05:36:15,230 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 05:36:15,231 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 05:36:15,231 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 05:36:15,231 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 05:36:15,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:15" (1/1) ... [2023-12-16 05:36:15,253 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:15" (1/1) ... [2023-12-16 05:36:15,287 INFO L138 Inliner]: procedures = 135, calls = 226, calls flagged for inlining = 61, calls inlined = 53, statements flattened = 1001 [2023-12-16 05:36:15,287 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 05:36:15,288 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 05:36:15,288 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 05:36:15,288 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 05:36:15,295 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:15" (1/1) ... [2023-12-16 05:36:15,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:15" (1/1) ... [2023-12-16 05:36:15,300 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:15" (1/1) ... [2023-12-16 05:36:15,315 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]. [2023-12-16 05:36:15,315 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:15" (1/1) ... [2023-12-16 05:36:15,316 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:15" (1/1) ... [2023-12-16 05:36:15,330 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:15" (1/1) ... [2023-12-16 05:36:15,335 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:15" (1/1) ... [2023-12-16 05:36:15,351 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:15" (1/1) ... [2023-12-16 05:36:15,356 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:15" (1/1) ... [2023-12-16 05:36:15,360 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 05:36:15,362 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 05:36:15,362 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 05:36:15,362 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 05:36:15,362 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:15" (1/1) ... [2023-12-16 05:36:15,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:36:15,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:15,384 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) [2023-12-16 05:36:15,386 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 [2023-12-16 05:36:15,406 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-16 05:36:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-16 05:36:15,406 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-16 05:36:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-16 05:36:15,406 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-16 05:36:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-16 05:36:15,406 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-16 05:36:15,406 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-16 05:36:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-16 05:36:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-16 05:36:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-16 05:36:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-16 05:36:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-16 05:36:15,407 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-16 05:36:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-16 05:36:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-16 05:36:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-16 05:36:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-16 05:36:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-16 05:36:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-16 05:36:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-16 05:36:15,410 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-16 05:36:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-16 05:36:15,411 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-16 05:36:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-16 05:36:15,411 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-16 05:36:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-16 05:36:15,411 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-16 05:36:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-16 05:36:15,411 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-16 05:36:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 05:36:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-16 05:36:15,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-16 05:36:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-16 05:36:15,414 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-16 05:36:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-16 05:36:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-16 05:36:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-16 05:36:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-16 05:36:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-16 05:36:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-16 05:36:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-16 05:36:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-16 05:36:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-16 05:36:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-16 05:36:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-16 05:36:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-16 05:36:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-16 05:36:15,416 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-16 05:36:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-16 05:36:15,416 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-16 05:36:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-16 05:36:15,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-16 05:36:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-16 05:36:15,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-16 05:36:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 05:36:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 05:36:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-16 05:36:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-16 05:36:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-16 05:36:15,416 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-16 05:36:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-16 05:36:15,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-16 05:36:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 05:36:15,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 05:36:15,591 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 05:36:15,593 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 05:36:16,235 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 05:36:16,285 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 05:36:16,285 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 05:36:16,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:36:16 BoogieIcfgContainer [2023-12-16 05:36:16,286 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 05:36:16,288 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 05:36:16,288 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 05:36:16,290 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 05:36:16,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:36:14" (1/3) ... [2023-12-16 05:36:16,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52aaea6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:36:16, skipping insertion in model container [2023-12-16 05:36:16,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:15" (2/3) ... [2023-12-16 05:36:16,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52aaea6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:36:16, skipping insertion in model container [2023-12-16 05:36:16,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:36:16" (3/3) ... [2023-12-16 05:36:16,292 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product32.cil.c [2023-12-16 05:36:16,303 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 05:36:16,303 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 05:36:16,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 05:36:16,357 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;@68ceecae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 05:36:16,357 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 05:36:16,363 INFO L276 IsEmpty]: Start isEmpty. Operand has 407 states, 306 states have (on average 1.5980392156862746) internal successors, (489), 313 states have internal predecessors, (489), 70 states have call successors, (70), 29 states have call predecessors, (70), 29 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-16 05:36:16,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 05:36:16,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:16,380 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:16,380 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:16,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:16,383 INFO L85 PathProgramCache]: Analyzing trace with hash -977460046, now seen corresponding path program 1 times [2023-12-16 05:36:16,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:16,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517731961] [2023-12-16 05:36:16,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:16,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:16,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:17,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:36:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:36:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:36:17,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 05:36:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-16 05:36:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:36:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-16 05:36:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 05:36:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-16 05:36:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 05:36:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 05:36:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 05:36:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-16 05:36:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 05:36:17,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-16 05:36:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,176 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-16 05:36:17,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:17,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517731961] [2023-12-16 05:36:17,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517731961] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:36:17,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429727761] [2023-12-16 05:36:17,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:17,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:17,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:17,193 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) [2023-12-16 05:36:17,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 05:36:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 05:36:17,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:36:17,787 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-16 05:36:17,787 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:36:17,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429727761] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:17,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:36:17,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-12-16 05:36:17,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116587721] [2023-12-16 05:36:17,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:17,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 05:36:17,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:17,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 05:36:17,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:36:17,852 INFO L87 Difference]: Start difference. First operand has 407 states, 306 states have (on average 1.5980392156862746) internal successors, (489), 313 states have internal predecessors, (489), 70 states have call successors, (70), 29 states have call predecessors, (70), 29 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) Second operand has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 05:36:17,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:17,957 INFO L93 Difference]: Finished difference Result 629 states and 957 transitions. [2023-12-16 05:36:17,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 05:36:17,959 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 132 [2023-12-16 05:36:17,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:17,974 INFO L225 Difference]: With dead ends: 629 [2023-12-16 05:36:17,974 INFO L226 Difference]: Without dead ends: 403 [2023-12-16 05:36:17,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:36:17,985 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:17,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 607 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:36:18,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2023-12-16 05:36:18,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2023-12-16 05:36:18,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 304 states have (on average 1.5855263157894737) internal successors, (482), 309 states have internal predecessors, (482), 70 states have call successors, (70), 29 states have call predecessors, (70), 28 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2023-12-16 05:36:18,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 619 transitions. [2023-12-16 05:36:18,101 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 619 transitions. Word has length 132 [2023-12-16 05:36:18,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:18,102 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 619 transitions. [2023-12-16 05:36:18,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 05:36:18,102 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 619 transitions. [2023-12-16 05:36:18,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-16 05:36:18,108 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:18,108 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:18,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 05:36:18,324 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 [2023-12-16 05:36:18,325 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:18,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:18,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1586915702, now seen corresponding path program 1 times [2023-12-16 05:36:18,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:18,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4813221] [2023-12-16 05:36:18,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:18,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:36:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:36:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:36:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 05:36:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-16 05:36:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 05:36:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-16 05:36:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 05:36:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 05:36:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:36:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-16 05:36:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-16 05:36:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 05:36:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 05:36:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-16 05:36:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,566 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-16 05:36:18,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:18,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4813221] [2023-12-16 05:36:18,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4813221] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:36:18,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397735479] [2023-12-16 05:36:18,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:18,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:18,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:18,569 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) [2023-12-16 05:36:18,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 05:36:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,830 INFO L262 TraceCheckSpWp]: Trace formula consists of 1229 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 05:36:18,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:36:18,863 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-16 05:36:18,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:36:18,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397735479] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:18,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:36:18,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-16 05:36:18,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654907981] [2023-12-16 05:36:18,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:18,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 05:36:18,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:18,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 05:36:18,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:36:18,866 INFO L87 Difference]: Start difference. First operand 403 states and 619 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 05:36:18,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:18,909 INFO L93 Difference]: Finished difference Result 624 states and 937 transitions. [2023-12-16 05:36:18,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 05:36:18,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 133 [2023-12-16 05:36:18,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:18,912 INFO L225 Difference]: With dead ends: 624 [2023-12-16 05:36:18,912 INFO L226 Difference]: Without dead ends: 405 [2023-12-16 05:36:18,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:36:18,915 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 0 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:18,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1207 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:36:18,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2023-12-16 05:36:18,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2023-12-16 05:36:18,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 306 states have (on average 1.5816993464052287) internal successors, (484), 311 states have internal predecessors, (484), 70 states have call successors, (70), 29 states have call predecessors, (70), 28 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2023-12-16 05:36:18,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 621 transitions. [2023-12-16 05:36:18,937 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 621 transitions. Word has length 133 [2023-12-16 05:36:18,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:18,937 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 621 transitions. [2023-12-16 05:36:18,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 05:36:18,937 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 621 transitions. [2023-12-16 05:36:18,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-16 05:36:18,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:18,939 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:18,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 05:36:19,140 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 [2023-12-16 05:36:19,140 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:19,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:19,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1325133562, now seen corresponding path program 1 times [2023-12-16 05:36:19,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:19,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905470602] [2023-12-16 05:36:19,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:19,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:19,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:19,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:36:19,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:36:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:36:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 05:36:19,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:36:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-16 05:36:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:36:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-16 05:36:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 05:36:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 05:36:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 05:36:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 05:36:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-16 05:36:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-16 05:36:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-16 05:36:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-16 05:36:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-16 05:36:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-16 05:36:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,560 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-16 05:36:19,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:19,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905470602] [2023-12-16 05:36:19,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905470602] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:36:19,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592628363] [2023-12-16 05:36:19,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:19,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:19,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:19,561 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) [2023-12-16 05:36:19,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 05:36:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 1322 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:36:19,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:36:20,004 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-16 05:36:20,004 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:36:20,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592628363] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:20,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:36:20,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-16 05:36:20,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959309502] [2023-12-16 05:36:20,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:20,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 05:36:20,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:20,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 05:36:20,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:36:20,007 INFO L87 Difference]: Start difference. First operand 405 states and 621 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 05:36:20,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:20,117 INFO L93 Difference]: Finished difference Result 858 states and 1334 transitions. [2023-12-16 05:36:20,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 05:36:20,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 158 [2023-12-16 05:36:20,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:20,122 INFO L225 Difference]: With dead ends: 858 [2023-12-16 05:36:20,122 INFO L226 Difference]: Without dead ends: 475 [2023-12-16 05:36:20,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:36:20,125 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 129 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:20,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1171 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:36:20,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2023-12-16 05:36:20,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 470. [2023-12-16 05:36:20,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 357 states have (on average 1.5994397759103642) internal successors, (571), 362 states have internal predecessors, (571), 84 states have call successors, (84), 29 states have call predecessors, (84), 28 states have return successors, (81), 80 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-16 05:36:20,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 736 transitions. [2023-12-16 05:36:20,163 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 736 transitions. Word has length 158 [2023-12-16 05:36:20,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:20,163 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 736 transitions. [2023-12-16 05:36:20,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 05:36:20,164 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 736 transitions. [2023-12-16 05:36:20,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 05:36:20,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:20,166 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:20,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 05:36:20,373 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 [2023-12-16 05:36:20,373 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:20,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:20,373 INFO L85 PathProgramCache]: Analyzing trace with hash -61265818, now seen corresponding path program 1 times [2023-12-16 05:36:20,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:20,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654757820] [2023-12-16 05:36:20,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:20,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:36:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:36:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:36:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 05:36:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 05:36:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-16 05:36:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 05:36:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 05:36:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 05:36:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 05:36:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 05:36:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 05:36:20,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 05:36:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 05:36:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-16 05:36:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,712 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 05:36:20,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:20,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654757820] [2023-12-16 05:36:20,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654757820] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:36:20,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355573254] [2023-12-16 05:36:20,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:20,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:20,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:20,714 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) [2023-12-16 05:36:20,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 05:36:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 05:36:21,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:36:21,132 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-16 05:36:21,133 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:36:21,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355573254] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:21,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:36:21,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-16 05:36:21,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256309833] [2023-12-16 05:36:21,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:21,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:36:21,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:21,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:36:21,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:36:21,135 INFO L87 Difference]: Start difference. First operand 470 states and 736 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 05:36:21,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:21,243 INFO L93 Difference]: Finished difference Result 935 states and 1466 transitions. [2023-12-16 05:36:21,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:36:21,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2023-12-16 05:36:21,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:21,246 INFO L225 Difference]: With dead ends: 935 [2023-12-16 05:36:21,246 INFO L226 Difference]: Without dead ends: 472 [2023-12-16 05:36:21,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:36:21,251 INFO L413 NwaCegarLoop]: 595 mSDtfsCounter, 8 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2369 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:21,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2369 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:36:21,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2023-12-16 05:36:21,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2023-12-16 05:36:21,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 358 states have (on average 1.5977653631284916) internal successors, (572), 364 states have internal predecessors, (572), 84 states have call successors, (84), 29 states have call predecessors, (84), 29 states have return successors, (83), 80 states have call predecessors, (83), 81 states have call successors, (83) [2023-12-16 05:36:21,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 739 transitions. [2023-12-16 05:36:21,285 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 739 transitions. Word has length 141 [2023-12-16 05:36:21,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:21,285 INFO L495 AbstractCegarLoop]: Abstraction has 472 states and 739 transitions. [2023-12-16 05:36:21,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 05:36:21,285 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 739 transitions. [2023-12-16 05:36:21,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-16 05:36:21,288 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:21,288 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:21,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 05:36:21,494 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 [2023-12-16 05:36:21,494 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:21,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:21,495 INFO L85 PathProgramCache]: Analyzing trace with hash -742027425, now seen corresponding path program 1 times [2023-12-16 05:36:21,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:21,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366019973] [2023-12-16 05:36:21,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:21,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:21,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-16 05:36:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-16 05:36:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 05:36:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 05:36:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-16 05:36:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 05:36:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 05:36:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 05:36:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 05:36:21,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-16 05:36:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-16 05:36:21,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 05:36:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-16 05:36:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-16 05:36:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-16 05:36:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 05:36:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-16 05:36:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,683 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:21,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:21,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366019973] [2023-12-16 05:36:21,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366019973] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:36:21,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344359655] [2023-12-16 05:36:21,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:21,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:21,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:21,686 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) [2023-12-16 05:36:21,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 05:36:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:21,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 1328 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 05:36:21,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:36:22,026 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-16 05:36:22,026 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:36:22,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344359655] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:22,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:36:22,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-16 05:36:22,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481055006] [2023-12-16 05:36:22,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:22,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:36:22,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:22,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:36:22,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-16 05:36:22,028 INFO L87 Difference]: Start difference. First operand 472 states and 739 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-16 05:36:22,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:22,106 INFO L93 Difference]: Finished difference Result 937 states and 1471 transitions. [2023-12-16 05:36:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:36:22,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 160 [2023-12-16 05:36:22,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:22,109 INFO L225 Difference]: With dead ends: 937 [2023-12-16 05:36:22,109 INFO L226 Difference]: Without dead ends: 474 [2023-12-16 05:36:22,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-16 05:36:22,111 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 8 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2355 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:22,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2355 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:36:22,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2023-12-16 05:36:22,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2023-12-16 05:36:22,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 359 states have (on average 1.5961002785515321) internal successors, (573), 366 states have internal predecessors, (573), 84 states have call successors, (84), 29 states have call predecessors, (84), 30 states have return successors, (88), 80 states have call predecessors, (88), 81 states have call successors, (88) [2023-12-16 05:36:22,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 745 transitions. [2023-12-16 05:36:22,122 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 745 transitions. Word has length 160 [2023-12-16 05:36:22,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:22,123 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 745 transitions. [2023-12-16 05:36:22,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-16 05:36:22,123 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 745 transitions. [2023-12-16 05:36:22,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-16 05:36:22,125 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:22,125 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:22,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 05:36:22,330 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 [2023-12-16 05:36:22,330 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:22,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:22,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1735735278, now seen corresponding path program 1 times [2023-12-16 05:36:22,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:22,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014196705] [2023-12-16 05:36:22,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:22,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:22,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 05:36:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 05:36:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-16 05:36:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:36:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 05:36:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 05:36:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 05:36:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-16 05:36:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 05:36:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-16 05:36:22,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 05:36:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-16 05:36:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-16 05:36:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-16 05:36:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-16 05:36:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-16 05:36:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,495 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-16 05:36:22,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:22,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014196705] [2023-12-16 05:36:22,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014196705] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:22,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:22,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 05:36:22,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995191055] [2023-12-16 05:36:22,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:22,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 05:36:22,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:22,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 05:36:22,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:36:22,497 INFO L87 Difference]: Start difference. First operand 474 states and 745 transitions. Second operand has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-16 05:36:24,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:24,949 INFO L93 Difference]: Finished difference Result 1041 states and 1670 transitions. [2023-12-16 05:36:24,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 05:36:24,949 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 161 [2023-12-16 05:36:24,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:24,953 INFO L225 Difference]: With dead ends: 1041 [2023-12-16 05:36:24,953 INFO L226 Difference]: Without dead ends: 586 [2023-12-16 05:36:24,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 05:36:24,956 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 1377 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 2721 mSolverCounterSat, 507 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 3228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 507 IncrementalHoareTripleChecker+Valid, 2721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:24,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 1194 Invalid, 3228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [507 Valid, 2721 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 05:36:24,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2023-12-16 05:36:24,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 474. [2023-12-16 05:36:24,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 359 states have (on average 1.5961002785515321) internal successors, (573), 366 states have internal predecessors, (573), 84 states have call successors, (84), 29 states have call predecessors, (84), 30 states have return successors, (87), 80 states have call predecessors, (87), 81 states have call successors, (87) [2023-12-16 05:36:24,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 744 transitions. [2023-12-16 05:36:24,988 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 744 transitions. Word has length 161 [2023-12-16 05:36:24,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:24,989 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 744 transitions. [2023-12-16 05:36:24,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2023-12-16 05:36:24,989 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 744 transitions. [2023-12-16 05:36:24,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-16 05:36:24,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:24,991 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:24,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 05:36:24,992 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:24,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:24,992 INFO L85 PathProgramCache]: Analyzing trace with hash 713488713, now seen corresponding path program 1 times [2023-12-16 05:36:24,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:24,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367638882] [2023-12-16 05:36:24,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:24,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 05:36:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-16 05:36:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-16 05:36:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 05:36:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 05:36:25,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 05:36:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:36:25,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 05:36:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-16 05:36:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-16 05:36:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-16 05:36:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-16 05:36:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-16 05:36:25,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,179 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 05:36:25,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:25,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367638882] [2023-12-16 05:36:25,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367638882] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:25,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:25,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 05:36:25,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516405410] [2023-12-16 05:36:25,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:25,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 05:36:25,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:25,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 05:36:25,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:36:25,181 INFO L87 Difference]: Start difference. First operand 474 states and 744 transitions. Second operand has 9 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 05:36:26,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:26,901 INFO L93 Difference]: Finished difference Result 1043 states and 1673 transitions. [2023-12-16 05:36:26,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 05:36:26,906 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 144 [2023-12-16 05:36:26,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:26,909 INFO L225 Difference]: With dead ends: 1043 [2023-12-16 05:36:26,909 INFO L226 Difference]: Without dead ends: 588 [2023-12-16 05:36:26,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 05:36:26,913 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 1371 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 2753 mSolverCounterSat, 509 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 3262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 2753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:26,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1372 Valid, 1193 Invalid, 3262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 2753 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 05:36:26,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-12-16 05:36:26,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 476. [2023-12-16 05:36:26,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 360 states have (on average 1.5944444444444446) internal successors, (574), 368 states have internal predecessors, (574), 84 states have call successors, (84), 29 states have call predecessors, (84), 31 states have return successors, (89), 80 states have call predecessors, (89), 81 states have call successors, (89) [2023-12-16 05:36:26,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 747 transitions. [2023-12-16 05:36:26,931 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 747 transitions. Word has length 144 [2023-12-16 05:36:26,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:26,931 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 747 transitions. [2023-12-16 05:36:26,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-16 05:36:26,931 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 747 transitions. [2023-12-16 05:36:26,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 05:36:26,933 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:26,933 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:26,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 05:36:26,933 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:26,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:26,934 INFO L85 PathProgramCache]: Analyzing trace with hash -402189547, now seen corresponding path program 1 times [2023-12-16 05:36:26,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:26,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033930667] [2023-12-16 05:36:26,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:26,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:26,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:27,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:27,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:27,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:27,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:27,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:27,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:27,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:27,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:36:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:27,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-16 05:36:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:27,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 05:36:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:27,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 05:36:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:27,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 05:36:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:27,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 05:36:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:27,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-16 05:36:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:27,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 05:36:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:27,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-16 05:36:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:27,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-16 05:36:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:27,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-16 05:36:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:27,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-16 05:36:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:27,089 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 05:36:27,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:27,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033930667] [2023-12-16 05:36:27,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033930667] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:27,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:27,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 05:36:27,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313872260] [2023-12-16 05:36:27,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:27,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 05:36:27,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:27,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 05:36:27,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:36:27,091 INFO L87 Difference]: Start difference. First operand 476 states and 747 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-16 05:36:30,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:30,153 INFO L93 Difference]: Finished difference Result 1041 states and 1668 transitions. [2023-12-16 05:36:30,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 05:36:30,153 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 145 [2023-12-16 05:36:30,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:30,157 INFO L225 Difference]: With dead ends: 1041 [2023-12-16 05:36:30,157 INFO L226 Difference]: Without dead ends: 588 [2023-12-16 05:36:30,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-16 05:36:30,159 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 1385 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 4566 mSolverCounterSat, 510 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 5076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 4566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:30,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 1651 Invalid, 5076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [510 Valid, 4566 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 05:36:30,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-12-16 05:36:30,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 476. [2023-12-16 05:36:30,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 360 states have (on average 1.5944444444444446) internal successors, (574), 368 states have internal predecessors, (574), 84 states have call successors, (84), 29 states have call predecessors, (84), 31 states have return successors, (88), 80 states have call predecessors, (88), 81 states have call successors, (88) [2023-12-16 05:36:30,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 746 transitions. [2023-12-16 05:36:30,181 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 746 transitions. Word has length 145 [2023-12-16 05:36:30,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:30,182 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 746 transitions. [2023-12-16 05:36:30,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 8 states have internal predecessors, (87), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-16 05:36:30,182 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 746 transitions. [2023-12-16 05:36:30,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-16 05:36:30,183 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:30,183 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:30,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 05:36:30,184 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:30,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:30,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1063758678, now seen corresponding path program 2 times [2023-12-16 05:36:30,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:30,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73445559] [2023-12-16 05:36:30,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:30,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:30,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:30,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:30,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:30,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:30,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:30,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:30,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:30,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:30,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 05:36:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:30,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-16 05:36:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:30,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 05:36:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:30,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 05:36:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:30,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 05:36:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:30,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 05:36:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:30,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-16 05:36:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:30,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-16 05:36:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:30,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-16 05:36:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:30,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-16 05:36:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:30,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-16 05:36:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:30,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-16 05:36:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:30,503 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 05:36:30,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:30,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73445559] [2023-12-16 05:36:30,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73445559] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:30,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:30,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 05:36:30,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288366120] [2023-12-16 05:36:30,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:30,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 05:36:30,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:30,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 05:36:30,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:36:30,508 INFO L87 Difference]: Start difference. First operand 476 states and 746 transitions. Second operand has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-16 05:36:33,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:33,829 INFO L93 Difference]: Finished difference Result 1043 states and 1674 transitions. [2023-12-16 05:36:33,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 05:36:33,829 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 146 [2023-12-16 05:36:33,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:33,833 INFO L225 Difference]: With dead ends: 1043 [2023-12-16 05:36:33,833 INFO L226 Difference]: Without dead ends: 590 [2023-12-16 05:36:33,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-16 05:36:33,838 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 1378 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 4619 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 5124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 4619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:33,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1379 Valid, 1652 Invalid, 5124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [505 Valid, 4619 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-16 05:36:33,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2023-12-16 05:36:33,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 478. [2023-12-16 05:36:33,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 361 states have (on average 1.592797783933518) internal successors, (575), 370 states have internal predecessors, (575), 84 states have call successors, (84), 29 states have call predecessors, (84), 32 states have return successors, (93), 80 states have call predecessors, (93), 81 states have call successors, (93) [2023-12-16 05:36:33,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 752 transitions. [2023-12-16 05:36:33,862 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 752 transitions. Word has length 146 [2023-12-16 05:36:33,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:33,863 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 752 transitions. [2023-12-16 05:36:33,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 8 states have internal predecessors, (88), 4 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-16 05:36:33,863 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 752 transitions. [2023-12-16 05:36:33,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 05:36:33,864 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:33,865 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:33,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 05:36:33,865 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:33,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:33,865 INFO L85 PathProgramCache]: Analyzing trace with hash 990234490, now seen corresponding path program 1 times [2023-12-16 05:36:33,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:33,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56805108] [2023-12-16 05:36:33,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:33,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:33,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:33,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:34,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:34,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:34,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:34,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:34,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:34,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 05:36:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:34,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 05:36:34,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:34,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 05:36:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:34,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-16 05:36:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:34,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 05:36:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:34,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 05:36:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:34,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 05:36:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:34,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 05:36:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:34,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 05:36:34,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:34,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-16 05:36:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:34,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-16 05:36:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:34,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-16 05:36:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:34,058 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-16 05:36:34,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:34,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56805108] [2023-12-16 05:36:34,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56805108] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:36:34,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247128936] [2023-12-16 05:36:34,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:34,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:34,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:34,059 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) [2023-12-16 05:36:34,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 05:36:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:34,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 1264 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:36:34,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:36:34,343 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:34,343 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 05:36:34,414 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:34,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247128936] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 05:36:34,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 05:36:34,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-12-16 05:36:34,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312004817] [2023-12-16 05:36:34,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 05:36:34,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-16 05:36:34,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:34,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-16 05:36:34,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-16 05:36:34,418 INFO L87 Difference]: Start difference. First operand 478 states and 752 transitions. Second operand has 15 states, 14 states have (on average 10.214285714285714) internal successors, (143), 11 states have internal predecessors, (143), 4 states have call successors, (43), 6 states have call predecessors, (43), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2023-12-16 05:36:38,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:38,022 INFO L93 Difference]: Finished difference Result 1462 states and 2450 transitions. [2023-12-16 05:36:38,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 05:36:38,022 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.214285714285714) internal successors, (143), 11 states have internal predecessors, (143), 4 states have call successors, (43), 6 states have call predecessors, (43), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) Word has length 147 [2023-12-16 05:36:38,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:38,026 INFO L225 Difference]: With dead ends: 1462 [2023-12-16 05:36:38,026 INFO L226 Difference]: Without dead ends: 1010 [2023-12-16 05:36:38,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-12-16 05:36:38,028 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 2710 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 5582 mSolverCounterSat, 925 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2731 SdHoareTripleChecker+Valid, 1907 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 925 IncrementalHoareTripleChecker+Valid, 5582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:38,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2731 Valid, 1907 Invalid, 6507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [925 Valid, 5582 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-16 05:36:38,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2023-12-16 05:36:38,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 883. [2023-12-16 05:36:38,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 687 states have (on average 1.6419213973799127) internal successors, (1128), 696 states have internal predecessors, (1128), 163 states have call successors, (163), 29 states have call predecessors, (163), 32 states have return successors, (182), 159 states have call predecessors, (182), 160 states have call successors, (182) [2023-12-16 05:36:38,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1473 transitions. [2023-12-16 05:36:38,060 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1473 transitions. Word has length 147 [2023-12-16 05:36:38,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:38,061 INFO L495 AbstractCegarLoop]: Abstraction has 883 states and 1473 transitions. [2023-12-16 05:36:38,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.214285714285714) internal successors, (143), 11 states have internal predecessors, (143), 4 states have call successors, (43), 6 states have call predecessors, (43), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2023-12-16 05:36:38,061 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1473 transitions. [2023-12-16 05:36:38,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 05:36:38,064 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:38,065 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:38,074 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-16 05:36:38,271 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 [2023-12-16 05:36:38,272 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:38,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:38,272 INFO L85 PathProgramCache]: Analyzing trace with hash -11679049, now seen corresponding path program 1 times [2023-12-16 05:36:38,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:38,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453692697] [2023-12-16 05:36:38,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:38,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:38,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:38,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:38,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:38,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:38,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:38,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:38,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-16 05:36:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:38,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:36:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:38,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 05:36:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:38,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-16 05:36:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:38,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 05:36:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:38,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-16 05:36:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:38,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 05:36:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:38,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-16 05:36:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:38,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-16 05:36:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:38,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-16 05:36:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:38,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-16 05:36:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:38,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-16 05:36:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:38,385 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:38,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:38,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453692697] [2023-12-16 05:36:38,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453692697] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:38,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:38,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:36:38,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029509606] [2023-12-16 05:36:38,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:38,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:36:38,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:38,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:36:38,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:36:38,386 INFO L87 Difference]: Start difference. First operand 883 states and 1473 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 05:36:40,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:40,164 INFO L93 Difference]: Finished difference Result 2197 states and 3769 transitions. [2023-12-16 05:36:40,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:36:40,176 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 151 [2023-12-16 05:36:40,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:40,183 INFO L225 Difference]: With dead ends: 2197 [2023-12-16 05:36:40,183 INFO L226 Difference]: Without dead ends: 1382 [2023-12-16 05:36:40,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:36:40,186 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 1492 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 573 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 2101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 573 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:40,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 900 Invalid, 2101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [573 Valid, 1528 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 05:36:40,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2023-12-16 05:36:40,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1265. [2023-12-16 05:36:40,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 990 states have (on average 1.6565656565656566) internal successors, (1640), 999 states have internal predecessors, (1640), 242 states have call successors, (242), 29 states have call predecessors, (242), 32 states have return successors, (271), 238 states have call predecessors, (271), 239 states have call successors, (271) [2023-12-16 05:36:40,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2153 transitions. [2023-12-16 05:36:40,322 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2153 transitions. Word has length 151 [2023-12-16 05:36:40,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:40,322 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 2153 transitions. [2023-12-16 05:36:40,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 05:36:40,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2153 transitions. [2023-12-16 05:36:40,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-12-16 05:36:40,327 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:40,327 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:40,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 05:36:40,327 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:40,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:40,328 INFO L85 PathProgramCache]: Analyzing trace with hash -713289562, now seen corresponding path program 1 times [2023-12-16 05:36:40,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:40,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826879566] [2023-12-16 05:36:40,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:40,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 05:36:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 05:36:40,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 05:36:40,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 05:36:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:36:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-16 05:36:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-16 05:36:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 05:36:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 05:36:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-16 05:36:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-16 05:36:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-16 05:36:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-16 05:36:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-16 05:36:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-12-16 05:36:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:40,558 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-16 05:36:40,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:40,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826879566] [2023-12-16 05:36:40,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826879566] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:40,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:40,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:36:40,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402010741] [2023-12-16 05:36:40,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:40,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:36:40,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:40,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:36:40,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:36:40,573 INFO L87 Difference]: Start difference. First operand 1265 states and 2153 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 05:36:42,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:42,680 INFO L93 Difference]: Finished difference Result 3148 states and 5455 transitions. [2023-12-16 05:36:42,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:36:42,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 170 [2023-12-16 05:36:42,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:42,699 INFO L225 Difference]: With dead ends: 3148 [2023-12-16 05:36:42,699 INFO L226 Difference]: Without dead ends: 2001 [2023-12-16 05:36:42,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:36:42,716 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 1490 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 579 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 2083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 579 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:42,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 879 Invalid, 2083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [579 Valid, 1504 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-16 05:36:42,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2001 states. [2023-12-16 05:36:42,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2001 to 1884. [2023-12-16 05:36:42,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1884 states, 1490 states have (on average 1.6644295302013423) internal successors, (2480), 1499 states have internal predecessors, (2480), 361 states have call successors, (361), 29 states have call predecessors, (361), 32 states have return successors, (390), 357 states have call predecessors, (390), 358 states have call successors, (390) [2023-12-16 05:36:42,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 3231 transitions. [2023-12-16 05:36:42,839 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 3231 transitions. Word has length 170 [2023-12-16 05:36:42,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:42,839 INFO L495 AbstractCegarLoop]: Abstraction has 1884 states and 3231 transitions. [2023-12-16 05:36:42,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 05:36:42,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 3231 transitions. [2023-12-16 05:36:42,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 05:36:42,851 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:42,851 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:42,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 05:36:42,851 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:42,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:42,851 INFO L85 PathProgramCache]: Analyzing trace with hash -614146523, now seen corresponding path program 1 times [2023-12-16 05:36:42,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:42,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856409892] [2023-12-16 05:36:42,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:42,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:42,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:42,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:42,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:42,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:42,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:42,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:42,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:42,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-16 05:36:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:42,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 05:36:42,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:42,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 05:36:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:42,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 05:36:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:42,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 05:36:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:42,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-16 05:36:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:42,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 05:36:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:42,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 05:36:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:42,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-16 05:36:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:43,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-16 05:36:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:43,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-16 05:36:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:43,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-16 05:36:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:43,007 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:43,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:43,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856409892] [2023-12-16 05:36:43,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856409892] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:43,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:43,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:36:43,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854300664] [2023-12-16 05:36:43,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:43,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:36:43,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:43,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:36:43,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:36:43,009 INFO L87 Difference]: Start difference. First operand 1884 states and 3231 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 05:36:44,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:44,896 INFO L93 Difference]: Finished difference Result 4588 states and 8026 transitions. [2023-12-16 05:36:44,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:36:44,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 153 [2023-12-16 05:36:44,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:44,912 INFO L225 Difference]: With dead ends: 4588 [2023-12-16 05:36:44,912 INFO L226 Difference]: Without dead ends: 2950 [2023-12-16 05:36:44,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:36:44,919 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 1486 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 1516 mSolverCounterSat, 561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1504 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 2077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 561 IncrementalHoareTripleChecker+Valid, 1516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:44,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1504 Valid, 872 Invalid, 2077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [561 Valid, 1516 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 05:36:44,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2023-12-16 05:36:45,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 2833. [2023-12-16 05:36:45,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2833 states, 2277 states have (on average 1.671058410188845) internal successors, (3805), 2286 states have internal predecessors, (3805), 523 states have call successors, (523), 29 states have call predecessors, (523), 32 states have return successors, (568), 519 states have call predecessors, (568), 520 states have call successors, (568) [2023-12-16 05:36:45,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 4896 transitions. [2023-12-16 05:36:45,010 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 4896 transitions. Word has length 153 [2023-12-16 05:36:45,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:45,011 INFO L495 AbstractCegarLoop]: Abstraction has 2833 states and 4896 transitions. [2023-12-16 05:36:45,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 05:36:45,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 4896 transitions. [2023-12-16 05:36:45,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 05:36:45,022 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:45,022 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:45,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 05:36:45,022 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:45,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:45,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1918191705, now seen corresponding path program 1 times [2023-12-16 05:36:45,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:45,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877864811] [2023-12-16 05:36:45,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:45,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-16 05:36:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 05:36:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 05:36:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 05:36:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 05:36:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 05:36:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-16 05:36:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-16 05:36:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 05:36:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-16 05:36:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-16 05:36:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-16 05:36:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-16 05:36:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-16 05:36:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-12-16 05:36:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:45,114 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-16 05:36:45,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:45,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877864811] [2023-12-16 05:36:45,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877864811] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:45,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:45,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:36:45,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122424510] [2023-12-16 05:36:45,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:45,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:36:45,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:45,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:36:45,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:36:45,116 INFO L87 Difference]: Start difference. First operand 2833 states and 4896 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 05:36:46,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:46,758 INFO L93 Difference]: Finished difference Result 6860 states and 12094 transitions. [2023-12-16 05:36:46,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:36:46,758 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 172 [2023-12-16 05:36:46,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:46,810 INFO L225 Difference]: With dead ends: 6860 [2023-12-16 05:36:46,810 INFO L226 Difference]: Without dead ends: 4482 [2023-12-16 05:36:46,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:36:46,818 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 1486 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 575 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 2075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 575 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:46,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 871 Invalid, 2075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [575 Valid, 1500 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 05:36:46,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2023-12-16 05:36:47,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 4365. [2023-12-16 05:36:47,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4365 states, 3564 states have (on average 1.6759259259259258) internal successors, (5973), 3573 states have internal predecessors, (5973), 768 states have call successors, (768), 29 states have call predecessors, (768), 32 states have return successors, (839), 764 states have call predecessors, (839), 765 states have call successors, (839) [2023-12-16 05:36:47,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4365 states to 4365 states and 7580 transitions. [2023-12-16 05:36:47,134 INFO L78 Accepts]: Start accepts. Automaton has 4365 states and 7580 transitions. Word has length 172 [2023-12-16 05:36:47,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:47,134 INFO L495 AbstractCegarLoop]: Abstraction has 4365 states and 7580 transitions. [2023-12-16 05:36:47,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 05:36:47,135 INFO L276 IsEmpty]: Start isEmpty. Operand 4365 states and 7580 transitions. [2023-12-16 05:36:47,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 05:36:47,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:47,152 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:47,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 05:36:47,153 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:47,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:47,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1639504191, now seen corresponding path program 1 times [2023-12-16 05:36:47,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:47,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498271663] [2023-12-16 05:36:47,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:47,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:47,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:47,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:47,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:47,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:47,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:47,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:47,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:47,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:47,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:47,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:47,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-16 05:36:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:47,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 05:36:47,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:47,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-16 05:36:47,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:47,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 05:36:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:47,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 05:36:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:47,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 05:36:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:47,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-16 05:36:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:47,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 05:36:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:47,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-16 05:36:47,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:47,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-16 05:36:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:47,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-16 05:36:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:47,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-16 05:36:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:47,231 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:47,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:47,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498271663] [2023-12-16 05:36:47,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498271663] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:47,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:47,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:36:47,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086150721] [2023-12-16 05:36:47,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:47,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:36:47,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:47,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:36:47,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:36:47,232 INFO L87 Difference]: Start difference. First operand 4365 states and 7580 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 05:36:48,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:48,859 INFO L93 Difference]: Finished difference Result 10913 states and 19305 transitions. [2023-12-16 05:36:48,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:36:48,860 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 155 [2023-12-16 05:36:48,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:48,982 INFO L225 Difference]: With dead ends: 10913 [2023-12-16 05:36:48,982 INFO L226 Difference]: Without dead ends: 7242 [2023-12-16 05:36:48,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:36:48,991 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 1481 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 569 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 569 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:48,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 899 Invalid, 2108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [569 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 05:36:48,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7242 states. [2023-12-16 05:36:49,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7242 to 7125. [2023-12-16 05:36:49,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7125 states, 5831 states have (on average 1.6719259132224318) internal successors, (9749), 5840 states have internal predecessors, (9749), 1261 states have call successors, (1261), 29 states have call predecessors, (1261), 32 states have return successors, (1376), 1257 states have call predecessors, (1376), 1258 states have call successors, (1376) [2023-12-16 05:36:49,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7125 states to 7125 states and 12386 transitions. [2023-12-16 05:36:49,221 INFO L78 Accepts]: Start accepts. Automaton has 7125 states and 12386 transitions. Word has length 155 [2023-12-16 05:36:49,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:49,222 INFO L495 AbstractCegarLoop]: Abstraction has 7125 states and 12386 transitions. [2023-12-16 05:36:49,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 05:36:49,222 INFO L276 IsEmpty]: Start isEmpty. Operand 7125 states and 12386 transitions. [2023-12-16 05:36:49,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-16 05:36:49,247 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:49,247 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:49,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 05:36:49,247 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:49,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:49,247 INFO L85 PathProgramCache]: Analyzing trace with hash -769404595, now seen corresponding path program 1 times [2023-12-16 05:36:49,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:49,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562635110] [2023-12-16 05:36:49,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:49,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:49,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:49,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:49,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:49,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:49,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:36:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:36:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 05:36:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 05:36:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-16 05:36:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-16 05:36:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-16 05:36:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-16 05:36:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 05:36:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-16 05:36:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-16 05:36:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-16 05:36:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:49,336 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:49,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:49,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562635110] [2023-12-16 05:36:49,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562635110] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:49,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:49,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:36:49,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977966888] [2023-12-16 05:36:49,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:49,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:36:49,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:49,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:36:49,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:36:49,337 INFO L87 Difference]: Start difference. First operand 7125 states and 12386 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 05:36:51,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:51,171 INFO L93 Difference]: Finished difference Result 18116 states and 32052 transitions. [2023-12-16 05:36:51,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:36:51,172 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 156 [2023-12-16 05:36:51,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:51,254 INFO L225 Difference]: With dead ends: 18116 [2023-12-16 05:36:51,254 INFO L226 Difference]: Without dead ends: 12071 [2023-12-16 05:36:51,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:36:51,285 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 1479 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 1564 mSolverCounterSat, 564 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 2128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 1564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:51,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 886 Invalid, 2128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [564 Valid, 1564 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 05:36:51,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12071 states. [2023-12-16 05:36:51,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12071 to 11954. [2023-12-16 05:36:51,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11954 states, 9838 states have (on average 1.6720878227281968) internal successors, (16450), 9847 states have internal predecessors, (16450), 2083 states have call successors, (2083), 29 states have call predecessors, (2083), 32 states have return successors, (2276), 2079 states have call predecessors, (2276), 2080 states have call successors, (2276) [2023-12-16 05:36:51,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11954 states to 11954 states and 20809 transitions. [2023-12-16 05:36:51,957 INFO L78 Accepts]: Start accepts. Automaton has 11954 states and 20809 transitions. Word has length 156 [2023-12-16 05:36:51,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:51,958 INFO L495 AbstractCegarLoop]: Abstraction has 11954 states and 20809 transitions. [2023-12-16 05:36:51,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 05:36:51,958 INFO L276 IsEmpty]: Start isEmpty. Operand 11954 states and 20809 transitions. [2023-12-16 05:36:52,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-12-16 05:36:52,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:52,030 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:52,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 05:36:52,030 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:52,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:52,031 INFO L85 PathProgramCache]: Analyzing trace with hash 354992225, now seen corresponding path program 1 times [2023-12-16 05:36:52,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:52,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887500424] [2023-12-16 05:36:52,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:52,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:52,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 05:36:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 05:36:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 05:36:52,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 05:36:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 05:36:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 05:36:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 05:36:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-16 05:36:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-16 05:36:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-16 05:36:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-16 05:36:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 05:36:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-16 05:36:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-12-16 05:36:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-12-16 05:36:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:52,164 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-16 05:36:52,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:52,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887500424] [2023-12-16 05:36:52,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887500424] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:52,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:52,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:36:52,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180198577] [2023-12-16 05:36:52,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:52,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:36:52,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:52,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:36:52,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:36:52,166 INFO L87 Difference]: Start difference. First operand 11954 states and 20809 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 05:36:54,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:54,075 INFO L93 Difference]: Finished difference Result 28662 states and 50500 transitions. [2023-12-16 05:36:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:36:54,075 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 175 [2023-12-16 05:36:54,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:54,193 INFO L225 Difference]: With dead ends: 28662 [2023-12-16 05:36:54,193 INFO L226 Difference]: Without dead ends: 18743 [2023-12-16 05:36:54,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:36:54,246 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 1480 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 1522 mSolverCounterSat, 571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 2093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 571 IncrementalHoareTripleChecker+Valid, 1522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:54,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 856 Invalid, 2093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [571 Valid, 1522 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 05:36:54,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18743 states. [2023-12-16 05:36:55,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18743 to 18626. [2023-12-16 05:36:55,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18626 states, 15307 states have (on average 1.6488534657346312) internal successors, (25239), 15316 states have internal predecessors, (25239), 3286 states have call successors, (3286), 29 states have call predecessors, (3286), 32 states have return successors, (3623), 3282 states have call predecessors, (3623), 3283 states have call successors, (3623) [2023-12-16 05:36:55,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18626 states to 18626 states and 32148 transitions. [2023-12-16 05:36:55,285 INFO L78 Accepts]: Start accepts. Automaton has 18626 states and 32148 transitions. Word has length 175 [2023-12-16 05:36:55,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:55,285 INFO L495 AbstractCegarLoop]: Abstraction has 18626 states and 32148 transitions. [2023-12-16 05:36:55,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-16 05:36:55,286 INFO L276 IsEmpty]: Start isEmpty. Operand 18626 states and 32148 transitions. [2023-12-16 05:36:55,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-16 05:36:55,368 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:55,368 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:55,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 05:36:55,369 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:55,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:55,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1135400402, now seen corresponding path program 1 times [2023-12-16 05:36:55,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:55,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566857865] [2023-12-16 05:36:55,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:55,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:55,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:55,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:55,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:55,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:55,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:55,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:55,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 05:36:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:55,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 05:36:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:55,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 05:36:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:55,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 05:36:55,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:55,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 05:36:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:55,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 05:36:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:55,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-16 05:36:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:55,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-16 05:36:55,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:55,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-16 05:36:55,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:55,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-16 05:36:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:55,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-16 05:36:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:55,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-16 05:36:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:55,463 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:55,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:55,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566857865] [2023-12-16 05:36:55,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566857865] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:55,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:55,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:36:55,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123962506] [2023-12-16 05:36:55,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:55,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:36:55,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:55,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:36:55,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:36:55,477 INFO L87 Difference]: Start difference. First operand 18626 states and 32148 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 05:36:57,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:57,834 INFO L93 Difference]: Finished difference Result 49295 states and 86619 transitions. [2023-12-16 05:36:57,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:36:57,834 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 158 [2023-12-16 05:36:57,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:57,979 INFO L225 Difference]: With dead ends: 49295 [2023-12-16 05:36:57,979 INFO L226 Difference]: Without dead ends: 33324 [2023-12-16 05:36:58,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:36:58,013 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 1478 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 580 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 2087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 580 IncrementalHoareTripleChecker+Valid, 1507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:58,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 872 Invalid, 2087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [580 Valid, 1507 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 05:36:58,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33324 states. [2023-12-16 05:36:59,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33324 to 33207. [2023-12-16 05:36:59,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33207 states, 27438 states have (on average 1.6460747867920402) internal successors, (45165), 27447 states have internal predecessors, (45165), 5736 states have call successors, (5736), 29 states have call predecessors, (5736), 32 states have return successors, (6347), 5732 states have call predecessors, (6347), 5733 states have call successors, (6347) [2023-12-16 05:36:59,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33207 states to 33207 states and 57248 transitions. [2023-12-16 05:37:00,001 INFO L78 Accepts]: Start accepts. Automaton has 33207 states and 57248 transitions. Word has length 158 [2023-12-16 05:37:00,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:37:00,001 INFO L495 AbstractCegarLoop]: Abstraction has 33207 states and 57248 transitions. [2023-12-16 05:37:00,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 05:37:00,001 INFO L276 IsEmpty]: Start isEmpty. Operand 33207 states and 57248 transitions. [2023-12-16 05:37:00,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-16 05:37:00,063 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:37:00,063 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:37:00,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 05:37:00,064 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:37:00,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:37:00,064 INFO L85 PathProgramCache]: Analyzing trace with hash -604857187, now seen corresponding path program 1 times [2023-12-16 05:37:00,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:37:00,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575822426] [2023-12-16 05:37:00,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:37:00,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:37:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:37:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:37:00,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:37:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:37:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:37:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:37:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 05:37:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 05:37:00,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-16 05:37:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:37:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-16 05:37:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-16 05:37:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 05:37:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-16 05:37:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-16 05:37:00,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-16 05:37:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-16 05:37:00,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-16 05:37:00,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:00,157 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:37:00,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:37:00,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575822426] [2023-12-16 05:37:00,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575822426] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:37:00,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:37:00,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:37:00,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691271347] [2023-12-16 05:37:00,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:37:00,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:37:00,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:37:00,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:37:00,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:37:00,160 INFO L87 Difference]: Start difference. First operand 33207 states and 57248 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 05:37:02,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:37:02,943 INFO L93 Difference]: Finished difference Result 90597 states and 158448 transitions. [2023-12-16 05:37:02,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:37:02,943 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 159 [2023-12-16 05:37:02,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:37:03,516 INFO L225 Difference]: With dead ends: 90597 [2023-12-16 05:37:03,516 INFO L226 Difference]: Without dead ends: 60936 [2023-12-16 05:37:03,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:37:03,648 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 1475 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 1546 mSolverCounterSat, 571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 2117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 571 IncrementalHoareTripleChecker+Valid, 1546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 05:37:03,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 890 Invalid, 2117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [571 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 05:37:03,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60936 states. [2023-12-16 05:37:06,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60936 to 60819. [2023-12-16 05:37:06,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60819 states, 50537 states have (on average 1.6422621049923818) internal successors, (82995), 50546 states have internal predecessors, (82995), 10249 states have call successors, (10249), 29 states have call predecessors, (10249), 32 states have return successors, (11392), 10245 states have call predecessors, (11392), 10246 states have call successors, (11392) [2023-12-16 05:37:06,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60819 states to 60819 states and 104636 transitions. [2023-12-16 05:37:06,820 INFO L78 Accepts]: Start accepts. Automaton has 60819 states and 104636 transitions. Word has length 159 [2023-12-16 05:37:06,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:37:06,821 INFO L495 AbstractCegarLoop]: Abstraction has 60819 states and 104636 transitions. [2023-12-16 05:37:06,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 05:37:06,821 INFO L276 IsEmpty]: Start isEmpty. Operand 60819 states and 104636 transitions. [2023-12-16 05:37:06,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-16 05:37:06,894 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:37:06,894 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:37:06,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 05:37:06,894 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:37:06,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:37:06,894 INFO L85 PathProgramCache]: Analyzing trace with hash 941831790, now seen corresponding path program 1 times [2023-12-16 05:37:06,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:37:06,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331480553] [2023-12-16 05:37:06,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:37:06,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:37:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:06,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:37:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:37:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:37:07,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:37:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:37:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:37:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 05:37:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 05:37:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 05:37:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 05:37:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-16 05:37:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-16 05:37:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 05:37:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-16 05:37:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-16 05:37:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-16 05:37:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-16 05:37:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-16 05:37:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:07,262 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:37:07,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:37:07,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331480553] [2023-12-16 05:37:07,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331480553] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:37:07,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:37:07,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:37:07,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108268066] [2023-12-16 05:37:07,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:37:07,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:37:07,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:37:07,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:37:07,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:37:07,264 INFO L87 Difference]: Start difference. First operand 60819 states and 104636 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 05:37:11,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:37:11,014 INFO L93 Difference]: Finished difference Result 113949 states and 199801 transitions. [2023-12-16 05:37:11,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:37:11,040 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 160 [2023-12-16 05:37:11,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:37:11,752 INFO L225 Difference]: With dead ends: 113949 [2023-12-16 05:37:11,752 INFO L226 Difference]: Without dead ends: 113730 [2023-12-16 05:37:11,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:37:11,825 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 1474 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 1516 mSolverCounterSat, 577 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 2093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 577 IncrementalHoareTripleChecker+Valid, 1516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 05:37:11,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 876 Invalid, 2093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [577 Valid, 1516 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 05:37:11,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113730 states. [2023-12-16 05:37:15,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113730 to 113613. [2023-12-16 05:37:16,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113613 states, 94963 states have (on average 1.6373113739035203) internal successors, (155484), 94972 states have internal predecessors, (155484), 18617 states have call successors, (18617), 29 states have call predecessors, (18617), 32 states have return successors, (20806), 18613 states have call predecessors, (20806), 18614 states have call successors, (20806) [2023-12-16 05:37:17,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113613 states to 113613 states and 194907 transitions. [2023-12-16 05:37:17,182 INFO L78 Accepts]: Start accepts. Automaton has 113613 states and 194907 transitions. Word has length 160 [2023-12-16 05:37:17,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:37:17,183 INFO L495 AbstractCegarLoop]: Abstraction has 113613 states and 194907 transitions. [2023-12-16 05:37:17,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (22), 6 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-16 05:37:17,183 INFO L276 IsEmpty]: Start isEmpty. Operand 113613 states and 194907 transitions. [2023-12-16 05:37:17,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-16 05:37:17,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:37:17,334 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:37:17,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 05:37:17,334 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:37:17,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:37:17,334 INFO L85 PathProgramCache]: Analyzing trace with hash 45417274, now seen corresponding path program 1 times [2023-12-16 05:37:17,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:37:17,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898164585] [2023-12-16 05:37:17,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:37:17,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:37:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:37:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:37:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:37:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:37:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:37:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:37:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:37:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 05:37:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 05:37:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 05:37:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-16 05:37:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-16 05:37:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-16 05:37:17,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-16 05:37:17,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 05:37:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-16 05:37:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-16 05:37:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-16 05:37:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-16 05:37:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-12-16 05:37:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-12-16 05:37:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:37:17,985 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-16 05:37:17,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:37:17,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898164585] [2023-12-16 05:37:17,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898164585] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:37:17,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:37:17,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 05:37:17,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125285385] [2023-12-16 05:37:17,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:37:17,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 05:37:17,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:37:17,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 05:37:17,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:37:17,988 INFO L87 Difference]: Start difference. First operand 113613 states and 194907 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (25), 7 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Received shutdown request... [2023-12-16 05:37:23,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-16 05:37:23,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2023-12-16 05:37:23,588 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 [2023-12-16 05:37:23,591 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 2961 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 3273 mSolverCounterSat, 912 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2978 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 4185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 912 IncrementalHoareTripleChecker+Valid, 3273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:37:23,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2978 Valid, 1557 Invalid, 4185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [912 Valid, 3273 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 05:37:23,608 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 05:37:23,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 05:37:23,609 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (113613states) and FLOYD_HOARE automaton (currently 24 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (122812 states constructed, input type IntersectNwa). [2023-12-16 05:37:23,616 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:37:23,618 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 05:37:23,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:37:23 BoogieIcfgContainer [2023-12-16 05:37:23,619 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 05:37:23,620 INFO L158 Benchmark]: Toolchain (without parser) took 69104.59ms. Allocated memory was 329.3MB in the beginning and 7.1GB in the end (delta: 6.8GB). Free memory was 271.1MB in the beginning and 5.7GB in the end (delta: -5.4GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-16 05:37:23,620 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 187.7MB. Free memory is still 136.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 05:37:23,620 INFO L158 Benchmark]: CACSL2BoogieTranslator took 713.97ms. Allocated memory is still 329.3MB. Free memory was 270.5MB in the beginning and 227.0MB in the end (delta: 43.5MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2023-12-16 05:37:23,620 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.72ms. Allocated memory is still 329.3MB. Free memory was 227.0MB in the beginning and 221.2MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 05:37:23,620 INFO L158 Benchmark]: Boogie Preprocessor took 72.75ms. Allocated memory is still 329.3MB. Free memory was 221.2MB in the beginning and 213.4MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 05:37:23,621 INFO L158 Benchmark]: RCFGBuilder took 924.06ms. Allocated memory is still 329.3MB. Free memory was 213.4MB in the beginning and 265.3MB in the end (delta: -51.9MB). Peak memory consumption was 69.2MB. Max. memory is 8.0GB. [2023-12-16 05:37:23,621 INFO L158 Benchmark]: TraceAbstraction took 67331.86ms. Allocated memory was 329.3MB in the beginning and 7.1GB in the end (delta: 6.8GB). Free memory was 264.8MB in the beginning and 5.7GB in the end (delta: -5.4GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-16 05:37:23,624 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 187.7MB. Free memory is still 136.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 713.97ms. Allocated memory is still 329.3MB. Free memory was 270.5MB in the beginning and 227.0MB in the end (delta: 43.5MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.72ms. Allocated memory is still 329.3MB. Free memory was 227.0MB in the beginning and 221.2MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 72.75ms. Allocated memory is still 329.3MB. Free memory was 221.2MB in the beginning and 213.4MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 924.06ms. Allocated memory is still 329.3MB. Free memory was 213.4MB in the beginning and 265.3MB in the end (delta: -51.9MB). Peak memory consumption was 69.2MB. Max. memory is 8.0GB. * TraceAbstraction took 67331.86ms. Allocated memory was 329.3MB in the beginning and 7.1GB in the end (delta: 6.8GB). Free memory was 264.8MB in the beginning and 5.7GB in the end (delta: -5.4GB). Peak memory consumption was 1.4GB. 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,"wsllib_check.i","") [48] - GenericResultAtLocation [Line: 57]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [57] - GenericResultAtLocation [Line: 106]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [106] - GenericResultAtLocation [Line: 541]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [541] - GenericResultAtLocation [Line: 558]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [558] - GenericResultAtLocation [Line: 787]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [787] - GenericResultAtLocation [Line: 845]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [845] - GenericResultAtLocation [Line: 1917]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1917] - GenericResultAtLocation [Line: 2205]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2205] - GenericResultAtLocation [Line: 2343]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2343] - GenericResultAtLocation [Line: 2740]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2740] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 53). Cancelled while NwaCegarLoop was constructing difference of abstraction (113613states) and FLOYD_HOARE automaton (currently 24 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (122812 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 30 procedures, 407 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 67.3s, OverallIterations: 21, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.6s, AutomataDifference: 44.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26397 SdHoareTripleChecker+Valid, 29.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26148 mSDsluCounter, 25664 SdHoareTripleChecker+Invalid, 24.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19548 mSDsCounter, 9589 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39038 IncrementalHoareTripleChecker+Invalid, 48627 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9589 mSolverCounterUnsat, 6116 mSDtfsCounter, 39038 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2111 GetRequests, 1820 SyntacticMatches, 0 SemanticMatches, 291 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 720 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113613occurred in iteration=20, InterpolantAutomatonStates: 180, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 13.4s AutomataMinimizationTime, 20 MinimizatonAttempts, 1750 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 4126 NumberOfCodeBlocks, 4126 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 4245 ConstructedInterpolants, 0 QuantifiedInterpolants, 6431 SizeOfPredicates, 8 NumberOfNonLiveVariables, 7629 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 28 InterpolantComputations, 20 PerfectInterpolantSequences, 1288/1314 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown