/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_spec6_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 09:55:36,453 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 09:55:36,524 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-21 09:55:36,528 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 09:55:36,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 09:55:36,551 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 09:55:36,551 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 09:55:36,551 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 09:55:36,552 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 09:55:36,555 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 09:55:36,555 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 09:55:36,555 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 09:55:36,555 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 09:55:36,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 09:55:36,557 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 09:55:36,557 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 09:55:36,557 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 09:55:36,557 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 09:55:36,557 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 09:55:36,557 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 09:55:36,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 09:55:36,558 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 09:55:36,558 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 09:55:36,558 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 09:55:36,558 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 09:55:36,559 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 09:55:36,559 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 09:55:36,559 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 09:55:36,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 09:55:36,559 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 09:55:36,560 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 09:55:36,560 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 09:55:36,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 09:55:36,561 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 09:55:36,561 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 09:55:36,561 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 09:55:36,561 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 09:55:36,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 09:55:36,561 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 09:55:36,561 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 09:55:36,561 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 09:55:36,562 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 09:55:36,562 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 09:55:36,562 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 09:55:36,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 09:55:36,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 09:55:36,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 09:55:36,755 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 09:55:36,757 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 09:55:36,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c [2023-12-21 09:55:37,807 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 09:55:38,009 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 09:55:38,010 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c [2023-12-21 09:55:38,029 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d121d6f61/db25e2607f254240a94ce31824063901/FLAG96e51755f [2023-12-21 09:55:38,040 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d121d6f61/db25e2607f254240a94ce31824063901 [2023-12-21 09:55:38,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 09:55:38,043 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 09:55:38,045 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 09:55:38,045 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 09:55:38,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 09:55:38,049 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:55:38" (1/1) ... [2023-12-21 09:55:38,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7847bb7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:38, skipping insertion in model container [2023-12-21 09:55:38,049 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:55:38" (1/1) ... [2023-12-21 09:55:38,117 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 09:55:38,339 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_spec6_product31.cil.c[31008,31021] [2023-12-21 09:55:38,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 09:55:38,489 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 09:55:38,495 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2023-12-21 09:55:38,499 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [66] [2023-12-21 09:55:38,499 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [225] [2023-12-21 09:55:38,499 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1305] [2023-12-21 09:55:38,499 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1314] [2023-12-21 09:55:38,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1680] [2023-12-21 09:55:38,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1905] [2023-12-21 09:55:38,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2190] [2023-12-21 09:55:38,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [2554] [2023-12-21 09:55:38,500 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2600] [2023-12-21 09:55:38,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2997] [2023-12-21 09:55:38,544 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_spec6_product31.cil.c[31008,31021] [2023-12-21 09:55:38,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 09:55:38,617 INFO L206 MainTranslator]: Completed translation [2023-12-21 09:55:38,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:38 WrapperNode [2023-12-21 09:55:38,617 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 09:55:38,620 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 09:55:38,620 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 09:55:38,620 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 09:55:38,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:38" (1/1) ... [2023-12-21 09:55:38,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:38" (1/1) ... [2023-12-21 09:55:38,714 INFO L138 Inliner]: procedures = 132, calls = 209, calls flagged for inlining = 62, calls inlined = 57, statements flattened = 1033 [2023-12-21 09:55:38,715 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 09:55:38,715 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 09:55:38,716 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 09:55:38,716 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 09:55:38,723 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:38" (1/1) ... [2023-12-21 09:55:38,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:38" (1/1) ... [2023-12-21 09:55:38,743 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:38" (1/1) ... [2023-12-21 09:55:38,761 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-12-21 09:55:38,761 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:38" (1/1) ... [2023-12-21 09:55:38,762 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:38" (1/1) ... [2023-12-21 09:55:38,776 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:38" (1/1) ... [2023-12-21 09:55:38,782 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:38" (1/1) ... [2023-12-21 09:55:38,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:38" (1/1) ... [2023-12-21 09:55:38,788 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:38" (1/1) ... [2023-12-21 09:55:38,794 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 09:55:38,795 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 09:55:38,795 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 09:55:38,795 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 09:55:38,796 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:38" (1/1) ... [2023-12-21 09:55:38,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 09:55:38,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:55:38,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-21 09:55:38,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-21 09:55:38,871 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-21 09:55:38,880 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-21 09:55:38,880 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-21 09:55:38,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-21 09:55:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-21 09:55:38,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-21 09:55:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-21 09:55:38,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-21 09:55:38,881 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-21 09:55:38,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-21 09:55:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-21 09:55:38,882 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-21 09:55:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-21 09:55:38,882 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-21 09:55:38,882 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-21 09:55:38,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-21 09:55:38,883 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-21 09:55:38,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-21 09:55:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-21 09:55:38,885 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-21 09:55:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-21 09:55:38,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-21 09:55:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-21 09:55:38,885 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-21 09:55:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 09:55:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-21 09:55:38,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-21 09:55:38,885 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-21 09:55:38,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-21 09:55:38,886 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-21 09:55:38,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-21 09:55:38,886 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-21 09:55:38,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-21 09:55:38,886 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-21 09:55:38,886 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-21 09:55:38,886 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-21 09:55:38,886 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-21 09:55:38,886 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-21 09:55:38,886 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-21 09:55:38,887 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-21 09:55:38,887 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-21 09:55:38,887 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-21 09:55:38,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-21 09:55:38,887 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-21 09:55:38,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-21 09:55:38,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 09:55:38,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 09:55:38,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 09:55:38,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 09:55:38,888 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-21 09:55:38,888 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-21 09:55:38,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 09:55:38,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 09:55:39,079 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 09:55:39,081 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 09:55:39,761 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 09:55:39,819 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 09:55:39,819 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 09:55:39,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:55:39 BoogieIcfgContainer [2023-12-21 09:55:39,819 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 09:55:39,821 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 09:55:39,821 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 09:55:39,823 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 09:55:39,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 09:55:38" (1/3) ... [2023-12-21 09:55:39,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7986e043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:55:39, skipping insertion in model container [2023-12-21 09:55:39,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:55:38" (2/3) ... [2023-12-21 09:55:39,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7986e043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 09:55:39, skipping insertion in model container [2023-12-21 09:55:39,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:55:39" (3/3) ... [2023-12-21 09:55:39,825 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product31.cil.c [2023-12-21 09:55:39,837 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 09:55:39,837 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 09:55:39,889 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 09:55:39,894 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;@344fa7d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 09:55:39,895 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 09:55:39,902 INFO L276 IsEmpty]: Start isEmpty. Operand has 342 states, 256 states have (on average 1.55859375) internal successors, (399), 260 states have internal predecessors, (399), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-12-21 09:55:39,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-21 09:55:39,933 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:55:39,934 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:55:39,934 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:55:39,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:55:39,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1407830515, now seen corresponding path program 1 times [2023-12-21 09:55:39,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:55:39,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811526898] [2023-12-21 09:55:39,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:55:39,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:55:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:40,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:55:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:40,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:55:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:40,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:55:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:40,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 09:55:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:40,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:55:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:40,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 09:55:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:40,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 09:55:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:40,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 09:55:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:40,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:55:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:40,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 09:55:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:40,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 09:55:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:40,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 09:55:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:40,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 09:55:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:40,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 09:55:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:40,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 09:55:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:40,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 09:55:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:40,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 09:55:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:40,618 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:55:40,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:55:40,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811526898] [2023-12-21 09:55:40,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811526898] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:55:40,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092899818] [2023-12-21 09:55:40,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:55:40,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:55:40,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:55:40,622 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 09:55:40,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-21 09:55:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:40,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 09:55:40,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:55:40,929 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 09:55:40,930 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:55:40,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092899818] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:55:40,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:55:40,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-12-21 09:55:40,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657265363] [2023-12-21 09:55:40,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:55:40,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 09:55:40,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:55:40,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 09:55:40,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 09:55:40,968 INFO L87 Difference]: Start difference. First operand has 342 states, 256 states have (on average 1.55859375) internal successors, (399), 260 states have internal predecessors, (399), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:55:41,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:55:41,044 INFO L93 Difference]: Finished difference Result 539 states and 805 transitions. [2023-12-21 09:55:41,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 09:55:41,048 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 119 [2023-12-21 09:55:41,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:55:41,057 INFO L225 Difference]: With dead ends: 539 [2023-12-21 09:55:41,057 INFO L226 Difference]: Without dead ends: 339 [2023-12-21 09:55:41,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 09:55:41,064 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:55:41,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 500 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 09:55:41,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-12-21 09:55:41,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 339. [2023-12-21 09:55:41,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 254 states have (on average 1.5433070866141732) internal successors, (392), 257 states have internal predecessors, (392), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-21 09:55:41,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 513 transitions. [2023-12-21 09:55:41,140 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 513 transitions. Word has length 119 [2023-12-21 09:55:41,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:55:41,142 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 513 transitions. [2023-12-21 09:55:41,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:55:41,142 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 513 transitions. [2023-12-21 09:55:41,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-21 09:55:41,147 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:55:41,148 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:55:41,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-21 09:55:41,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-21 09:55:41,357 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:55:41,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:55:41,357 INFO L85 PathProgramCache]: Analyzing trace with hash 385126182, now seen corresponding path program 1 times [2023-12-21 09:55:41,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:55:41,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529929965] [2023-12-21 09:55:41,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:55:41,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:55:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:41,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:55:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:41,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:55:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:41,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:55:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:41,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 09:55:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:41,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:55:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:41,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 09:55:41,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:41,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 09:55:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:41,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 09:55:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:41,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:55:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:41,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 09:55:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:41,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 09:55:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:41,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 09:55:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:41,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 09:55:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:41,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 09:55:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:41,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 09:55:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:41,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 09:55:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:41,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 09:55:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:41,653 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:55:41,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:55:41,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529929965] [2023-12-21 09:55:41,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529929965] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:55:41,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990528439] [2023-12-21 09:55:41,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:55:41,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:55:41,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:55:41,669 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 09:55:41,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-21 09:55:41,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:41,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 1119 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 09:55:41,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:55:41,948 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 09:55:41,949 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:55:41,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990528439] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:55:41,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:55:41,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-21 09:55:41,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406928402] [2023-12-21 09:55:41,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:55:41,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 09:55:41,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:55:41,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 09:55:41,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:55:41,956 INFO L87 Difference]: Start difference. First operand 339 states and 513 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:55:42,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:55:42,021 INFO L93 Difference]: Finished difference Result 535 states and 792 transitions. [2023-12-21 09:55:42,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 09:55:42,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 120 [2023-12-21 09:55:42,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:55:42,024 INFO L225 Difference]: With dead ends: 535 [2023-12-21 09:55:42,025 INFO L226 Difference]: Without dead ends: 341 [2023-12-21 09:55:42,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:55:42,027 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 0 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:55:42,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 993 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 09:55:42,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-12-21 09:55:42,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2023-12-21 09:55:42,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 256 states have (on average 1.5390625) internal successors, (394), 259 states have internal predecessors, (394), 61 states have call successors, (61), 23 states have call predecessors, (61), 23 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-21 09:55:42,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 515 transitions. [2023-12-21 09:55:42,041 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 515 transitions. Word has length 120 [2023-12-21 09:55:42,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:55:42,041 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 515 transitions. [2023-12-21 09:55:42,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:55:42,041 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 515 transitions. [2023-12-21 09:55:42,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-21 09:55:42,043 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:55:42,043 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:55:42,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-21 09:55:42,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-21 09:55:42,251 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:55:42,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:55:42,252 INFO L85 PathProgramCache]: Analyzing trace with hash -110764851, now seen corresponding path program 1 times [2023-12-21 09:55:42,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:55:42,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002887980] [2023-12-21 09:55:42,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:55:42,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:55:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:42,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:55:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:42,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:55:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:42,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:55:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:42,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 09:55:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:42,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:55:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:42,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 09:55:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:42,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 09:55:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:42,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 09:55:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:42,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 09:55:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:42,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 09:55:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:42,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 09:55:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:42,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 09:55:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:42,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 09:55:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:42,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 09:55:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:42,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 09:55:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:42,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 09:55:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:42,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-21 09:55:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:42,443 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-21 09:55:42,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:55:42,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002887980] [2023-12-21 09:55:42,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002887980] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:55:42,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071224634] [2023-12-21 09:55:42,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:55:42,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:55:42,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:55:42,445 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 09:55:42,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-21 09:55:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:42,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 1131 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 09:55:42,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:55:42,710 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 09:55:42,710 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:55:42,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071224634] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:55:42,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:55:42,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-21 09:55:42,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897684858] [2023-12-21 09:55:42,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:55:42,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 09:55:42,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:55:42,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 09:55:42,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:55:42,712 INFO L87 Difference]: Start difference. First operand 341 states and 515 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:55:42,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:55:42,757 INFO L93 Difference]: Finished difference Result 712 states and 1089 transitions. [2023-12-21 09:55:42,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 09:55:42,757 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 125 [2023-12-21 09:55:42,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:55:42,761 INFO L225 Difference]: With dead ends: 712 [2023-12-21 09:55:42,761 INFO L226 Difference]: Without dead ends: 393 [2023-12-21 09:55:42,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 09:55:42,764 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 102 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:55:42,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 968 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 09:55:42,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2023-12-21 09:55:42,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 388. [2023-12-21 09:55:42,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 292 states have (on average 1.5547945205479452) internal successors, (454), 295 states have internal predecessors, (454), 72 states have call successors, (72), 23 states have call predecessors, (72), 23 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2023-12-21 09:55:42,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 597 transitions. [2023-12-21 09:55:42,785 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 597 transitions. Word has length 125 [2023-12-21 09:55:42,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:55:42,785 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 597 transitions. [2023-12-21 09:55:42,785 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, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:55:42,786 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 597 transitions. [2023-12-21 09:55:42,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-21 09:55:42,787 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:55:42,787 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:55:42,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-21 09:55:42,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:55:42,990 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:55:42,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:55:42,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1019352572, now seen corresponding path program 1 times [2023-12-21 09:55:42,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:55:42,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676062391] [2023-12-21 09:55:42,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:55:42,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:55:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:55:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:55:43,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:55:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 09:55:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 09:55:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 09:55:43,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-21 09:55:43,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 09:55:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 09:55:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 09:55:43,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:55:43,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 09:55:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 09:55:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 09:55:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 09:55:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 09:55:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 09:55:43,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,175 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-21 09:55:43,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:55:43,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676062391] [2023-12-21 09:55:43,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676062391] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:55:43,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707802352] [2023-12-21 09:55:43,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:55:43,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:55:43,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:55:43,178 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 09:55:43,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-21 09:55:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 1136 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 09:55:43,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:55:43,479 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-21 09:55:43,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:55:43,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707802352] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:55:43,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:55:43,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-21 09:55:43,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702606777] [2023-12-21 09:55:43,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:55:43,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 09:55:43,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:55:43,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 09:55:43,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 09:55:43,481 INFO L87 Difference]: Start difference. First operand 388 states and 597 transitions. Second operand has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-21 09:55:43,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:55:43,584 INFO L93 Difference]: Finished difference Result 771 states and 1188 transitions. [2023-12-21 09:55:43,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 09:55:43,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 126 [2023-12-21 09:55:43,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:55:43,588 INFO L225 Difference]: With dead ends: 771 [2023-12-21 09:55:43,588 INFO L226 Difference]: Without dead ends: 390 [2023-12-21 09:55:43,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:55:43,593 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 8 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1941 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 09:55:43,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1941 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 09:55:43,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-12-21 09:55:43,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2023-12-21 09:55:43,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 293 states have (on average 1.552901023890785) internal successors, (455), 297 states have internal predecessors, (455), 72 states have call successors, (72), 23 states have call predecessors, (72), 24 states have return successors, (73), 71 states have call predecessors, (73), 71 states have call successors, (73) [2023-12-21 09:55:43,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 600 transitions. [2023-12-21 09:55:43,613 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 600 transitions. Word has length 126 [2023-12-21 09:55:43,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:55:43,614 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 600 transitions. [2023-12-21 09:55:43,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-21 09:55:43,615 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 600 transitions. [2023-12-21 09:55:43,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-21 09:55:43,617 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:55:43,617 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:55:43,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-21 09:55:43,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:55:43,826 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:55:43,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:55:43,826 INFO L85 PathProgramCache]: Analyzing trace with hash -498820325, now seen corresponding path program 1 times [2023-12-21 09:55:43,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:55:43,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918419050] [2023-12-21 09:55:43,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:55:43,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:55:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:55:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:55:43,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:55:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:55:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-21 09:55:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 09:55:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:43,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 09:55:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:55:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 09:55:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:55:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 09:55:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 09:55:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 09:55:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 09:55:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 09:55:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-21 09:55:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-21 09:55:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,024 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-21 09:55:44,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:55:44,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918419050] [2023-12-21 09:55:44,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918419050] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:55:44,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074000926] [2023-12-21 09:55:44,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:55:44,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:55:44,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:55:44,025 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 09:55:44,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-21 09:55:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 1137 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 09:55:44,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:55:44,305 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-21 09:55:44,305 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:55:44,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074000926] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:55:44,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:55:44,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-21 09:55:44,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473042659] [2023-12-21 09:55:44,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:55:44,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 09:55:44,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:55:44,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 09:55:44,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-21 09:55:44,307 INFO L87 Difference]: Start difference. First operand 390 states and 600 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-21 09:55:44,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:55:44,390 INFO L93 Difference]: Finished difference Result 773 states and 1193 transitions. [2023-12-21 09:55:44,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 09:55:44,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 127 [2023-12-21 09:55:44,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:55:44,392 INFO L225 Difference]: With dead ends: 773 [2023-12-21 09:55:44,392 INFO L226 Difference]: Without dead ends: 392 [2023-12-21 09:55:44,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-21 09:55:44,394 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 8 mSDsluCounter, 1441 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1927 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 09:55:44,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1927 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 09:55:44,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2023-12-21 09:55:44,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2023-12-21 09:55:44,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 294 states have (on average 1.5510204081632653) internal successors, (456), 299 states have internal predecessors, (456), 72 states have call successors, (72), 23 states have call predecessors, (72), 25 states have return successors, (78), 71 states have call predecessors, (78), 71 states have call successors, (78) [2023-12-21 09:55:44,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 606 transitions. [2023-12-21 09:55:44,409 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 606 transitions. Word has length 127 [2023-12-21 09:55:44,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:55:44,409 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 606 transitions. [2023-12-21 09:55:44,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-21 09:55:44,410 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 606 transitions. [2023-12-21 09:55:44,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-21 09:55:44,411 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:55:44,411 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-21 09:55:44,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-21 09:55:44,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:55:44,618 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:55:44,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:55:44,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1478548955, now seen corresponding path program 1 times [2023-12-21 09:55:44,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:55:44,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486952564] [2023-12-21 09:55:44,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:55:44,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:55:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:55:44,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:55:44,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:55:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:55:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:55:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 09:55:44,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 09:55:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 09:55:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 09:55:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 09:55:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 09:55:44,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 09:55:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 09:55:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 09:55:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 09:55:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 09:55:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 09:55:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:44,774 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-21 09:55:44,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:55:44,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486952564] [2023-12-21 09:55:44,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486952564] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:55:44,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:55:44,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 09:55:44,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638801701] [2023-12-21 09:55:44,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:55:44,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 09:55:44,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:55:44,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 09:55:44,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 09:55:44,776 INFO L87 Difference]: Start difference. First operand 392 states and 606 transitions. Second operand has 9 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-21 09:55:46,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:55:46,492 INFO L93 Difference]: Finished difference Result 913 states and 1424 transitions. [2023-12-21 09:55:46,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 09:55:46,493 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 128 [2023-12-21 09:55:46,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:55:46,497 INFO L225 Difference]: With dead ends: 913 [2023-12-21 09:55:46,497 INFO L226 Difference]: Without dead ends: 540 [2023-12-21 09:55:46,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-21 09:55:46,499 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 1116 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2780 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 3180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 2780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-21 09:55:46,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 963 Invalid, 3180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [400 Valid, 2780 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-21 09:55:46,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2023-12-21 09:55:46,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 392. [2023-12-21 09:55:46,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 294 states have (on average 1.5510204081632653) internal successors, (456), 299 states have internal predecessors, (456), 72 states have call successors, (72), 23 states have call predecessors, (72), 25 states have return successors, (77), 71 states have call predecessors, (77), 71 states have call successors, (77) [2023-12-21 09:55:46,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 605 transitions. [2023-12-21 09:55:46,530 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 605 transitions. Word has length 128 [2023-12-21 09:55:46,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:55:46,530 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 605 transitions. [2023-12-21 09:55:46,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-21 09:55:46,530 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 605 transitions. [2023-12-21 09:55:46,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-21 09:55:46,532 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:55:46,532 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1] [2023-12-21 09:55:46,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 09:55:46,532 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:55:46,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:55:46,532 INFO L85 PathProgramCache]: Analyzing trace with hash -583295396, now seen corresponding path program 2 times [2023-12-21 09:55:46,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:55:46,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180155711] [2023-12-21 09:55:46,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:55:46,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:55:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:46,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:55:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:46,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:55:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:46,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:55:46,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:46,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:55:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:46,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:55:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:46,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 09:55:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:46,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 09:55:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:46,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 09:55:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:46,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 09:55:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:46,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 09:55:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:46,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 09:55:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:46,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 09:55:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:46,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 09:55:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:46,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 09:55:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:46,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 09:55:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:46,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 09:55:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:46,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 09:55:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:46,693 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-21 09:55:46,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:55:46,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180155711] [2023-12-21 09:55:46,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180155711] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:55:46,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:55:46,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 09:55:46,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730316783] [2023-12-21 09:55:46,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:55:46,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 09:55:46,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:55:46,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 09:55:46,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 09:55:46,695 INFO L87 Difference]: Start difference. First operand 392 states and 605 transitions. Second operand has 9 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-21 09:55:48,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:55:48,448 INFO L93 Difference]: Finished difference Result 915 states and 1427 transitions. [2023-12-21 09:55:48,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 09:55:48,449 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 129 [2023-12-21 09:55:48,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:55:48,452 INFO L225 Difference]: With dead ends: 915 [2023-12-21 09:55:48,452 INFO L226 Difference]: Without dead ends: 542 [2023-12-21 09:55:48,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-21 09:55:48,454 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 1111 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2792 mSolverCounterSat, 400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 3192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 2792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-21 09:55:48,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1112 Valid, 963 Invalid, 3192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [400 Valid, 2792 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-21 09:55:48,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2023-12-21 09:55:48,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 394. [2023-12-21 09:55:48,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 295 states have (on average 1.5491525423728814) internal successors, (457), 301 states have internal predecessors, (457), 72 states have call successors, (72), 23 states have call predecessors, (72), 26 states have return successors, (79), 71 states have call predecessors, (79), 71 states have call successors, (79) [2023-12-21 09:55:48,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 608 transitions. [2023-12-21 09:55:48,478 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 608 transitions. Word has length 129 [2023-12-21 09:55:48,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:55:48,479 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 608 transitions. [2023-12-21 09:55:48,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-21 09:55:48,479 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 608 transitions. [2023-12-21 09:55:48,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-21 09:55:48,481 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:55:48,481 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-21 09:55:48,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 09:55:48,482 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:55:48,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:55:48,482 INFO L85 PathProgramCache]: Analyzing trace with hash -547001706, now seen corresponding path program 1 times [2023-12-21 09:55:48,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:55:48,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46918666] [2023-12-21 09:55:48,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:55:48,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:55:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:48,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:55:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:48,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:55:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:48,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:55:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:48,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:55:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:48,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:55:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:48,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:55:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:48,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 09:55:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:48,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 09:55:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:48,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 09:55:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:48,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 09:55:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:48,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 09:55:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:48,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 09:55:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:48,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 09:55:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:48,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 09:55:48,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:48,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 09:55:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:48,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 09:55:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:48,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 09:55:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:48,648 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-21 09:55:48,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:55:48,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46918666] [2023-12-21 09:55:48,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46918666] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:55:48,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:55:48,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 09:55:48,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187952614] [2023-12-21 09:55:48,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:55:48,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 09:55:48,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:55:48,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 09:55:48,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-21 09:55:48,649 INFO L87 Difference]: Start difference. First operand 394 states and 608 transitions. Second operand has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-21 09:55:50,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:55:50,956 INFO L93 Difference]: Finished difference Result 913 states and 1422 transitions. [2023-12-21 09:55:50,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 09:55:50,957 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 130 [2023-12-21 09:55:50,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:55:50,960 INFO L225 Difference]: With dead ends: 913 [2023-12-21 09:55:50,960 INFO L226 Difference]: Without dead ends: 542 [2023-12-21 09:55:50,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-21 09:55:50,962 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 1121 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 4639 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 5043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 4639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:55:50,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 1332 Invalid, 5043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 4639 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-21 09:55:50,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2023-12-21 09:55:50,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 394. [2023-12-21 09:55:50,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 295 states have (on average 1.5491525423728814) internal successors, (457), 301 states have internal predecessors, (457), 72 states have call successors, (72), 23 states have call predecessors, (72), 26 states have return successors, (78), 71 states have call predecessors, (78), 71 states have call successors, (78) [2023-12-21 09:55:50,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 607 transitions. [2023-12-21 09:55:50,980 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 607 transitions. Word has length 130 [2023-12-21 09:55:50,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:55:50,980 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 607 transitions. [2023-12-21 09:55:50,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-21 09:55:50,980 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 607 transitions. [2023-12-21 09:55:50,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-21 09:55:50,982 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:55:50,982 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2023-12-21 09:55:50,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 09:55:50,982 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:55:50,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:55:50,982 INFO L85 PathProgramCache]: Analyzing trace with hash -856120252, now seen corresponding path program 2 times [2023-12-21 09:55:50,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:55:50,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426253773] [2023-12-21 09:55:50,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:55:50,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:55:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:51,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:55:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:51,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:55:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:51,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:55:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:51,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:55:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:51,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:55:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:51,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:55:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:51,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 09:55:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:51,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 09:55:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:51,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 09:55:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:51,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 09:55:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:51,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 09:55:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:51,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 09:55:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:51,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 09:55:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:51,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 09:55:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:51,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 09:55:51,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:51,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-21 09:55:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:51,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-21 09:55:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:51,190 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-21 09:55:51,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:55:51,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426253773] [2023-12-21 09:55:51,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426253773] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:55:51,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:55:51,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 09:55:51,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167993963] [2023-12-21 09:55:51,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:55:51,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 09:55:51,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:55:51,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 09:55:51,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-21 09:55:51,192 INFO L87 Difference]: Start difference. First operand 394 states and 607 transitions. Second operand has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-21 09:55:53,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:55:53,476 INFO L93 Difference]: Finished difference Result 915 states and 1428 transitions. [2023-12-21 09:55:53,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 09:55:53,476 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 131 [2023-12-21 09:55:53,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:55:53,479 INFO L225 Difference]: With dead ends: 915 [2023-12-21 09:55:53,489 INFO L226 Difference]: Without dead ends: 544 [2023-12-21 09:55:53,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-21 09:55:53,493 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 1116 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 4675 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 5077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 4675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:55:53,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 1332 Invalid, 5077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 4675 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-21 09:55:53,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2023-12-21 09:55:53,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 396. [2023-12-21 09:55:53,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 296 states have (on average 1.5472972972972974) internal successors, (458), 303 states have internal predecessors, (458), 72 states have call successors, (72), 23 states have call predecessors, (72), 27 states have return successors, (83), 71 states have call predecessors, (83), 71 states have call successors, (83) [2023-12-21 09:55:53,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 613 transitions. [2023-12-21 09:55:53,511 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 613 transitions. Word has length 131 [2023-12-21 09:55:53,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:55:53,511 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 613 transitions. [2023-12-21 09:55:53,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-21 09:55:53,512 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 613 transitions. [2023-12-21 09:55:53,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-21 09:55:53,513 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:55:53,513 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-12-21 09:55:53,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 09:55:53,513 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:55:53,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:55:53,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1920111311, now seen corresponding path program 1 times [2023-12-21 09:55:53,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:55:53,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072920764] [2023-12-21 09:55:53,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:55:53,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:55:53,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:53,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:55:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:53,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:55:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:53,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:55:53,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:53,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:55:53,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:53,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:55:53,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:53,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:55:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:53,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 09:55:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:53,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-21 09:55:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:53,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 09:55:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:53,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:55:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:53,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 09:55:53,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:53,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 09:55:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:53,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 09:55:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:53,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 09:55:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:53,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 09:55:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:53,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 09:55:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:53,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 09:55:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:53,621 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-21 09:55:53,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:55:53,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072920764] [2023-12-21 09:55:53,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072920764] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:55:53,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892816967] [2023-12-21 09:55:53,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:55:53,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:55:53,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:55:53,623 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 09:55:53,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-21 09:55:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:53,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 1142 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 09:55:53,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:55:53,877 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-21 09:55:53,877 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 09:55:53,932 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-21 09:55:53,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892816967] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 09:55:53,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 09:55:53,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2023-12-21 09:55:53,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103723240] [2023-12-21 09:55:53,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 09:55:53,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-21 09:55:53,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:55:53,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-21 09:55:53,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-21 09:55:53,935 INFO L87 Difference]: Start difference. First operand 396 states and 613 transitions. Second operand has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (39), 6 states have call predecessors, (39), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-21 09:55:55,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:55:55,451 INFO L93 Difference]: Finished difference Result 1068 states and 1740 transitions. [2023-12-21 09:55:55,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-21 09:55:55,453 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (39), 6 states have call predecessors, (39), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 132 [2023-12-21 09:55:55,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:55:55,457 INFO L225 Difference]: With dead ends: 1068 [2023-12-21 09:55:55,457 INFO L226 Difference]: Without dead ends: 874 [2023-12-21 09:55:55,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-12-21 09:55:55,458 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 1498 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 2357 mSolverCounterSat, 535 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 1233 SdHoareTripleChecker+Invalid, 2892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 535 IncrementalHoareTripleChecker+Valid, 2357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-21 09:55:55,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1543 Valid, 1233 Invalid, 2892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [535 Valid, 2357 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-21 09:55:55,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2023-12-21 09:55:55,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 711. [2023-12-21 09:55:55,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 547 states have (on average 1.6142595978062158) internal successors, (883), 554 states have internal predecessors, (883), 136 states have call successors, (136), 23 states have call predecessors, (136), 27 states have return successors, (157), 135 states have call predecessors, (157), 135 states have call successors, (157) [2023-12-21 09:55:55,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 1176 transitions. [2023-12-21 09:55:55,485 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 1176 transitions. Word has length 132 [2023-12-21 09:55:55,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:55:55,486 INFO L495 AbstractCegarLoop]: Abstraction has 711 states and 1176 transitions. [2023-12-21 09:55:55,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 7 states have internal predecessors, (118), 2 states have call successors, (39), 6 states have call predecessors, (39), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-12-21 09:55:55,486 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 1176 transitions. [2023-12-21 09:55:55,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-21 09:55:55,489 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:55:55,489 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:55:55,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-21 09:55:55,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:55:55,697 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:55:55,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:55:55,697 INFO L85 PathProgramCache]: Analyzing trace with hash 994689844, now seen corresponding path program 1 times [2023-12-21 09:55:55,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:55:55,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360774248] [2023-12-21 09:55:55,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:55:55,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:55:55,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:55,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:55:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:55,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:55:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:55,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:55:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:55,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:55:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:55,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:55:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:55,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:55:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:55,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 09:55:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:55,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 09:55:55,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:55,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 09:55:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:55,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 09:55:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:55,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 09:55:55,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:55,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 09:55:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:55,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 09:55:55,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:55,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 09:55:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:55,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 09:55:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:55,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 09:55:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:55,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 09:55:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:55,778 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-21 09:55:55,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:55:55,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360774248] [2023-12-21 09:55:55,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360774248] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:55:55,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:55:55,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:55:55,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892510972] [2023-12-21 09:55:55,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:55:55,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:55:55,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:55:55,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:55:55,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:55:55,779 INFO L87 Difference]: Start difference. First operand 711 states and 1176 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:55:57,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:55:57,110 INFO L93 Difference]: Finished difference Result 1827 states and 3089 transitions. [2023-12-21 09:55:57,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:55:57,110 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2023-12-21 09:55:57,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:55:57,115 INFO L225 Difference]: With dead ends: 1827 [2023-12-21 09:55:57,115 INFO L226 Difference]: Without dead ends: 1176 [2023-12-21 09:55:57,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:55:57,118 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 1205 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 2043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 09:55:57,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 739 Invalid, 2043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [457 Valid, 1586 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 09:55:57,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2023-12-21 09:55:57,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 1023. [2023-12-21 09:55:57,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023 states, 795 states have (on average 1.628930817610063) internal successors, (1295), 802 states have internal predecessors, (1295), 200 states have call successors, (200), 23 states have call predecessors, (200), 27 states have return successors, (231), 199 states have call predecessors, (231), 199 states have call successors, (231) [2023-12-21 09:55:57,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1726 transitions. [2023-12-21 09:55:57,159 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1726 transitions. Word has length 138 [2023-12-21 09:55:57,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:55:57,159 INFO L495 AbstractCegarLoop]: Abstraction has 1023 states and 1726 transitions. [2023-12-21 09:55:57,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:55:57,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1726 transitions. [2023-12-21 09:55:57,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-21 09:55:57,163 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:55:57,164 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:55:57,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 09:55:57,164 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:55:57,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:55:57,164 INFO L85 PathProgramCache]: Analyzing trace with hash 585078328, now seen corresponding path program 1 times [2023-12-21 09:55:57,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:55:57,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528148280] [2023-12-21 09:55:57,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:55:57,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:55:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:57,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:55:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:57,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:55:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:57,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:55:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:57,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:55:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:57,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:55:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:57,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:55:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:57,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 09:55:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:57,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 09:55:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:57,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 09:55:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:57,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 09:55:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:57,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 09:55:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:57,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 09:55:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:57,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 09:55:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:57,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 09:55:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:57,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-21 09:55:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:57,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-21 09:55:57,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:57,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-21 09:55:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:57,248 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-21 09:55:57,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:55:57,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528148280] [2023-12-21 09:55:57,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528148280] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:55:57,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:55:57,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:55:57,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123807678] [2023-12-21 09:55:57,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:55:57,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:55:57,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:55:57,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:55:57,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:55:57,250 INFO L87 Difference]: Start difference. First operand 1023 states and 1726 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:55:58,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:55:58,600 INFO L93 Difference]: Finished difference Result 2576 states and 4407 transitions. [2023-12-21 09:55:58,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:55:58,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 139 [2023-12-21 09:55:58,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:55:58,607 INFO L225 Difference]: With dead ends: 2576 [2023-12-21 09:55:58,607 INFO L226 Difference]: Without dead ends: 1663 [2023-12-21 09:55:58,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:55:58,611 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 1203 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 1602 mSolverCounterSat, 458 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 2060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 458 IncrementalHoareTripleChecker+Valid, 1602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 09:55:58,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 723 Invalid, 2060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [458 Valid, 1602 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 09:55:58,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2023-12-21 09:55:58,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1510. [2023-12-21 09:55:58,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1187 states have (on average 1.6385846672283066) internal successors, (1945), 1194 states have internal predecessors, (1945), 295 states have call successors, (295), 23 states have call predecessors, (295), 27 states have return successors, (326), 294 states have call predecessors, (326), 294 states have call successors, (326) [2023-12-21 09:55:58,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2566 transitions. [2023-12-21 09:55:58,661 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2566 transitions. Word has length 139 [2023-12-21 09:55:58,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:55:58,661 INFO L495 AbstractCegarLoop]: Abstraction has 1510 states and 2566 transitions. [2023-12-21 09:55:58,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:55:58,662 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2566 transitions. [2023-12-21 09:55:58,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-21 09:55:58,667 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:55:58,667 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:55:58,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 09:55:58,667 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:55:58,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:55:58,668 INFO L85 PathProgramCache]: Analyzing trace with hash 735516818, now seen corresponding path program 1 times [2023-12-21 09:55:58,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:55:58,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908954348] [2023-12-21 09:55:58,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:55:58,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:55:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:58,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:55:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:58,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:55:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:58,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:55:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:58,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:55:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:58,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:55:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:58,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:55:58,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:58,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 09:55:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:58,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 09:55:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:58,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:55:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:58,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:55:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:58,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 09:55:58,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:58,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 09:55:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:58,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 09:55:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:58,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-21 09:55:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:58,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 09:55:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:58,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-21 09:55:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:58,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-21 09:55:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:55:58,766 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-21 09:55:58,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:55:58,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908954348] [2023-12-21 09:55:58,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908954348] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:55:58,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:55:58,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:55:58,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343114077] [2023-12-21 09:55:58,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:55:58,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:55:58,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:55:58,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:55:58,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:55:58,768 INFO L87 Difference]: Start difference. First operand 1510 states and 2566 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:56:00,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:56:00,043 INFO L93 Difference]: Finished difference Result 3678 states and 6366 transitions. [2023-12-21 09:56:00,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:56:00,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 140 [2023-12-21 09:56:00,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:56:00,054 INFO L225 Difference]: With dead ends: 3678 [2023-12-21 09:56:00,054 INFO L226 Difference]: Without dead ends: 2398 [2023-12-21 09:56:00,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:56:00,058 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 1201 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1565 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 2018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 1565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 09:56:00,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 708 Invalid, 2018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 1565 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 09:56:00,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2023-12-21 09:56:00,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 2245. [2023-12-21 09:56:00,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2245 states, 1799 states have (on average 1.6464702612562534) internal successors, (2962), 1806 states have internal predecessors, (2962), 418 states have call successors, (418), 23 states have call predecessors, (418), 27 states have return successors, (465), 417 states have call predecessors, (465), 417 states have call successors, (465) [2023-12-21 09:56:00,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2245 states to 2245 states and 3845 transitions. [2023-12-21 09:56:00,148 INFO L78 Accepts]: Start accepts. Automaton has 2245 states and 3845 transitions. Word has length 140 [2023-12-21 09:56:00,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:56:00,148 INFO L495 AbstractCegarLoop]: Abstraction has 2245 states and 3845 transitions. [2023-12-21 09:56:00,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:56:00,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2245 states and 3845 transitions. [2023-12-21 09:56:00,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-21 09:56:00,158 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:56:00,158 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:56:00,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 09:56:00,158 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:56:00,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:56:00,158 INFO L85 PathProgramCache]: Analyzing trace with hash -514954697, now seen corresponding path program 1 times [2023-12-21 09:56:00,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:56:00,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396668689] [2023-12-21 09:56:00,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:56:00,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:56:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:00,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:56:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:00,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:56:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:00,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:56:00,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:00,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:56:00,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:00,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:56:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:00,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:56:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:00,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 09:56:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:00,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 09:56:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:00,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 09:56:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:00,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 09:56:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:00,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 09:56:00,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:00,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 09:56:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:00,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 09:56:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:00,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 09:56:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:00,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 09:56:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:00,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-21 09:56:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:00,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 09:56:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:00,246 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-21 09:56:00,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:56:00,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396668689] [2023-12-21 09:56:00,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396668689] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:56:00,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:56:00,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:56:00,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038380595] [2023-12-21 09:56:00,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:56:00,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:56:00,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:56:00,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:56:00,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:56:00,248 INFO L87 Difference]: Start difference. First operand 2245 states and 3845 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:56:01,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:56:01,493 INFO L93 Difference]: Finished difference Result 5388 states and 9416 transitions. [2023-12-21 09:56:01,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:56:01,494 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 141 [2023-12-21 09:56:01,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:56:01,507 INFO L225 Difference]: With dead ends: 5388 [2023-12-21 09:56:01,507 INFO L226 Difference]: Without dead ends: 3570 [2023-12-21 09:56:01,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:56:01,511 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 1199 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1565 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 2016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 1565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 09:56:01,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1214 Valid, 708 Invalid, 2016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 1565 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 09:56:01,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3570 states. [2023-12-21 09:56:01,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3570 to 3417. [2023-12-21 09:56:01,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3417 states, 2792 states have (on average 1.651862464183381) internal successors, (4612), 2799 states have internal predecessors, (4612), 597 states have call successors, (597), 23 states have call predecessors, (597), 27 states have return successors, (670), 596 states have call predecessors, (670), 596 states have call successors, (670) [2023-12-21 09:56:01,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3417 states to 3417 states and 5879 transitions. [2023-12-21 09:56:01,620 INFO L78 Accepts]: Start accepts. Automaton has 3417 states and 5879 transitions. Word has length 141 [2023-12-21 09:56:01,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:56:01,621 INFO L495 AbstractCegarLoop]: Abstraction has 3417 states and 5879 transitions. [2023-12-21 09:56:01,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:56:01,621 INFO L276 IsEmpty]: Start isEmpty. Operand 3417 states and 5879 transitions. [2023-12-21 09:56:01,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-21 09:56:01,634 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:56:01,634 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:56:01,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 09:56:01,634 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:56:01,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:56:01,634 INFO L85 PathProgramCache]: Analyzing trace with hash -32079978, now seen corresponding path program 1 times [2023-12-21 09:56:01,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:56:01,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774027093] [2023-12-21 09:56:01,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:56:01,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:56:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:01,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:56:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:01,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:56:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:01,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:56:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:01,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:56:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:01,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:56:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:01,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:56:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:01,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 09:56:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:01,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 09:56:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:01,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 09:56:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:01,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 09:56:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:01,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 09:56:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:01,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 09:56:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:01,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 09:56:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:01,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 09:56:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:01,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-21 09:56:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:01,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 09:56:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:01,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 09:56:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:01,716 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-21 09:56:01,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:56:01,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774027093] [2023-12-21 09:56:01,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774027093] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:56:01,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:56:01,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:56:01,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976679042] [2023-12-21 09:56:01,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:56:01,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:56:01,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:56:01,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:56:01,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:56:01,719 INFO L87 Difference]: Start difference. First operand 3417 states and 5879 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:56:03,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:56:03,135 INFO L93 Difference]: Finished difference Result 8243 states and 14470 transitions. [2023-12-21 09:56:03,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:56:03,135 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 142 [2023-12-21 09:56:03,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:56:03,158 INFO L225 Difference]: With dead ends: 8243 [2023-12-21 09:56:03,158 INFO L226 Difference]: Without dead ends: 5540 [2023-12-21 09:56:03,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:56:03,166 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 1197 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 1602 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 1602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 09:56:03,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 736 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [457 Valid, 1602 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 09:56:03,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5540 states. [2023-12-21 09:56:03,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5540 to 5387. [2023-12-21 09:56:03,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5387 states, 4386 states have (on average 1.6422708618331054) internal successors, (7203), 4393 states have internal predecessors, (7203), 973 states have call successors, (973), 23 states have call predecessors, (973), 27 states have return successors, (1090), 972 states have call predecessors, (1090), 972 states have call successors, (1090) [2023-12-21 09:56:03,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5387 states to 5387 states and 9266 transitions. [2023-12-21 09:56:03,373 INFO L78 Accepts]: Start accepts. Automaton has 5387 states and 9266 transitions. Word has length 142 [2023-12-21 09:56:03,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:56:03,373 INFO L495 AbstractCegarLoop]: Abstraction has 5387 states and 9266 transitions. [2023-12-21 09:56:03,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:56:03,374 INFO L276 IsEmpty]: Start isEmpty. Operand 5387 states and 9266 transitions. [2023-12-21 09:56:03,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-21 09:56:03,394 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:56:03,394 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:56:03,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 09:56:03,394 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:56:03,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:56:03,394 INFO L85 PathProgramCache]: Analyzing trace with hash 270141235, now seen corresponding path program 1 times [2023-12-21 09:56:03,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:56:03,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193127806] [2023-12-21 09:56:03,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:56:03,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:56:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:03,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:56:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:03,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:56:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:03,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:56:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:03,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:56:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:03,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:56:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:03,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:56:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:03,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 09:56:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:03,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:56:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:03,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 09:56:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:03,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 09:56:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:03,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 09:56:03,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:03,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 09:56:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:03,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 09:56:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:03,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 09:56:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:03,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-21 09:56:03,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:03,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-21 09:56:03,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:03,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-21 09:56:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:03,477 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-21 09:56:03,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:56:03,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193127806] [2023-12-21 09:56:03,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193127806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:56:03,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:56:03,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:56:03,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487191714] [2023-12-21 09:56:03,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:56:03,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:56:03,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:56:03,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:56:03,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:56:03,478 INFO L87 Difference]: Start difference. First operand 5387 states and 9266 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, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:56:04,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:56:04,891 INFO L93 Difference]: Finished difference Result 13380 states and 23491 transitions. [2023-12-21 09:56:04,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:56:04,900 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, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2023-12-21 09:56:04,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:56:04,939 INFO L225 Difference]: With dead ends: 13380 [2023-12-21 09:56:04,939 INFO L226 Difference]: Without dead ends: 9073 [2023-12-21 09:56:04,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:56:04,953 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1195 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 1591 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 1591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 09:56:04,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 715 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [455 Valid, 1591 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 09:56:04,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9073 states. [2023-12-21 09:56:05,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9073 to 8920. [2023-12-21 09:56:05,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8920 states, 7313 states have (on average 1.6407766990291262) internal successors, (11999), 7320 states have internal predecessors, (11999), 1579 states have call successors, (1579), 23 states have call predecessors, (1579), 27 states have return successors, (1774), 1578 states have call predecessors, (1774), 1578 states have call successors, (1774) [2023-12-21 09:56:05,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8920 states to 8920 states and 15352 transitions. [2023-12-21 09:56:05,254 INFO L78 Accepts]: Start accepts. Automaton has 8920 states and 15352 transitions. Word has length 143 [2023-12-21 09:56:05,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:56:05,254 INFO L495 AbstractCegarLoop]: Abstraction has 8920 states and 15352 transitions. [2023-12-21 09:56:05,254 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, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:56:05,254 INFO L276 IsEmpty]: Start isEmpty. Operand 8920 states and 15352 transitions. [2023-12-21 09:56:05,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-21 09:56:05,282 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:56:05,282 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:56:05,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 09:56:05,282 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:56:05,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:56:05,283 INFO L85 PathProgramCache]: Analyzing trace with hash 351330344, now seen corresponding path program 1 times [2023-12-21 09:56:05,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:56:05,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818206037] [2023-12-21 09:56:05,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:56:05,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:56:05,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:05,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:56:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:05,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:56:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:05,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:56:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:05,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:56:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:05,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:56:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:05,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:56:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:05,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 09:56:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:05,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 09:56:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:05,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 09:56:05,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:05,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 09:56:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:05,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 09:56:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:05,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 09:56:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:05,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 09:56:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:05,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-21 09:56:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:05,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-21 09:56:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:05,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 09:56:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:05,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 09:56:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:05,357 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-21 09:56:05,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:56:05,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818206037] [2023-12-21 09:56:05,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818206037] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:56:05,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:56:05,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:56:05,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038782585] [2023-12-21 09:56:05,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:56:05,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:56:05,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:56:05,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:56:05,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:56:05,359 INFO L87 Difference]: Start difference. First operand 8920 states and 15352 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:56:06,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:56:06,915 INFO L93 Difference]: Finished difference Result 23152 states and 40625 transitions. [2023-12-21 09:56:06,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:56:06,916 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2023-12-21 09:56:06,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:56:06,961 INFO L225 Difference]: With dead ends: 23152 [2023-12-21 09:56:06,961 INFO L226 Difference]: Without dead ends: 15745 [2023-12-21 09:56:06,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:56:06,979 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 1193 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1634 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 2081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 1634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-21 09:56:06,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 762 Invalid, 2081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 1634 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-21 09:56:06,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15745 states. [2023-12-21 09:56:07,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15745 to 15592. [2023-12-21 09:56:07,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15592 states, 12782 states have (on average 1.6319824753559693) internal successors, (20860), 12789 states have internal predecessors, (20860), 2782 states have call successors, (2782), 23 states have call predecessors, (2782), 27 states have return successors, (3121), 2781 states have call predecessors, (3121), 2781 states have call successors, (3121) [2023-12-21 09:56:07,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15592 states to 15592 states and 26763 transitions. [2023-12-21 09:56:07,447 INFO L78 Accepts]: Start accepts. Automaton has 15592 states and 26763 transitions. Word has length 144 [2023-12-21 09:56:07,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:56:07,447 INFO L495 AbstractCegarLoop]: Abstraction has 15592 states and 26763 transitions. [2023-12-21 09:56:07,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:56:07,448 INFO L276 IsEmpty]: Start isEmpty. Operand 15592 states and 26763 transitions. [2023-12-21 09:56:07,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-21 09:56:07,504 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:56:07,504 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:56:07,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 09:56:07,504 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:56:07,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:56:07,505 INFO L85 PathProgramCache]: Analyzing trace with hash -665065966, now seen corresponding path program 1 times [2023-12-21 09:56:07,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:56:07,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985838116] [2023-12-21 09:56:07,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:56:07,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:56:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:07,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:56:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:07,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:56:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:07,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:56:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:07,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:56:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:07,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:56:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:07,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:56:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:07,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 09:56:07,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:07,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 09:56:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:07,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 09:56:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:07,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 09:56:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:07,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 09:56:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:07,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 09:56:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:07,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 09:56:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:07,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-21 09:56:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:07,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-21 09:56:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:07,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-21 09:56:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:07,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-21 09:56:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:07,578 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-21 09:56:07,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:56:07,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985838116] [2023-12-21 09:56:07,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985838116] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:56:07,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:56:07,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:56:07,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284044434] [2023-12-21 09:56:07,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:56:07,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:56:07,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:56:07,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:56:07,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:56:07,580 INFO L87 Difference]: Start difference. First operand 15592 states and 26763 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, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:56:09,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:56:09,346 INFO L93 Difference]: Finished difference Result 41319 states and 72425 transitions. [2023-12-21 09:56:09,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:56:09,347 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, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 145 [2023-12-21 09:56:09,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:56:09,438 INFO L225 Difference]: With dead ends: 41319 [2023-12-21 09:56:09,438 INFO L226 Difference]: Without dead ends: 27860 [2023-12-21 09:56:09,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:56:09,473 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 1191 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 09:56:09,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 709 Invalid, 2033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 09:56:09,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27860 states. [2023-12-21 09:56:10,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27860 to 27707. [2023-12-21 09:56:10,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27707 states, 22858 states have (on average 1.6284889316650626) internal successors, (37224), 22865 states have internal predecessors, (37224), 4821 states have call successors, (4821), 23 states have call predecessors, (4821), 27 states have return successors, (5434), 4820 states have call predecessors, (5434), 4820 states have call successors, (5434) [2023-12-21 09:56:10,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27707 states to 27707 states and 47479 transitions. [2023-12-21 09:56:10,360 INFO L78 Accepts]: Start accepts. Automaton has 27707 states and 47479 transitions. Word has length 145 [2023-12-21 09:56:10,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:56:10,361 INFO L495 AbstractCegarLoop]: Abstraction has 27707 states and 47479 transitions. [2023-12-21 09:56:10,361 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, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:56:10,361 INFO L276 IsEmpty]: Start isEmpty. Operand 27707 states and 47479 transitions. [2023-12-21 09:56:10,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-21 09:56:10,414 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:56:10,414 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:56:10,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 09:56:10,415 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:56:10,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:56:10,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1128075462, now seen corresponding path program 1 times [2023-12-21 09:56:10,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:56:10,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556039058] [2023-12-21 09:56:10,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:56:10,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:56:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:10,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:56:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:10,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:56:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:10,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:56:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:10,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:56:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:10,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:56:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:10,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:56:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:10,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 09:56:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:10,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 09:56:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:10,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 09:56:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:10,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 09:56:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:10,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 09:56:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:10,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 09:56:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:10,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-21 09:56:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:10,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-21 09:56:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:10,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-21 09:56:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:10,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-21 09:56:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:10,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-21 09:56:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:10,493 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-21 09:56:10,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:56:10,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556039058] [2023-12-21 09:56:10,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556039058] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:56:10,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:56:10,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:56:10,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567866348] [2023-12-21 09:56:10,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:56:10,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:56:10,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:56:10,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:56:10,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:56:10,495 INFO L87 Difference]: Start difference. First operand 27707 states and 47479 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:56:13,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:56:13,138 INFO L93 Difference]: Finished difference Result 75511 states and 131614 transitions. [2023-12-21 09:56:13,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:56:13,139 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 146 [2023-12-21 09:56:13,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:56:13,312 INFO L225 Difference]: With dead ends: 75511 [2023-12-21 09:56:13,312 INFO L226 Difference]: Without dead ends: 50684 [2023-12-21 09:56:13,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:56:13,366 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 1189 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 2034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 459 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 09:56:13,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1204 Valid, 727 Invalid, 2034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [459 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 09:56:13,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50684 states. [2023-12-21 09:56:14,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50684 to 50531. [2023-12-21 09:56:14,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50531 states, 41967 states have (on average 1.623609026139586) internal successors, (68138), 41974 states have internal predecessors, (68138), 8536 states have call successors, (8536), 23 states have call predecessors, (8536), 27 states have return successors, (9681), 8535 states have call predecessors, (9681), 8535 states have call successors, (9681) [2023-12-21 09:56:15,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50531 states to 50531 states and 86355 transitions. [2023-12-21 09:56:15,122 INFO L78 Accepts]: Start accepts. Automaton has 50531 states and 86355 transitions. Word has length 146 [2023-12-21 09:56:15,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:56:15,122 INFO L495 AbstractCegarLoop]: Abstraction has 50531 states and 86355 transitions. [2023-12-21 09:56:15,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:56:15,122 INFO L276 IsEmpty]: Start isEmpty. Operand 50531 states and 86355 transitions. [2023-12-21 09:56:15,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-21 09:56:15,186 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:56:15,186 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:56:15,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 09:56:15,187 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:56:15,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:56:15,187 INFO L85 PathProgramCache]: Analyzing trace with hash 214540850, now seen corresponding path program 1 times [2023-12-21 09:56:15,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:56:15,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355595996] [2023-12-21 09:56:15,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:56:15,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:56:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:15,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:56:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:15,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:56:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:15,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:56:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:15,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:56:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:15,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:56:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:15,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:56:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:15,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 09:56:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:15,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 09:56:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:15,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 09:56:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:15,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 09:56:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:15,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 09:56:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:15,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 09:56:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:15,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 09:56:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:15,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-21 09:56:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:15,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-21 09:56:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:15,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-21 09:56:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:15,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-21 09:56:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:15,259 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-21 09:56:15,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:56:15,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355595996] [2023-12-21 09:56:15,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355595996] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:56:15,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 09:56:15,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 09:56:15,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844870706] [2023-12-21 09:56:15,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:56:15,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 09:56:15,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:56:15,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 09:56:15,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 09:56:15,261 INFO L87 Difference]: Start difference. First operand 50531 states and 86355 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, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:56:18,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:56:18,374 INFO L93 Difference]: Finished difference Result 94258 states and 164777 transitions. [2023-12-21 09:56:18,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:56:18,375 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, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2023-12-21 09:56:18,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:56:18,676 INFO L225 Difference]: With dead ends: 94258 [2023-12-21 09:56:18,676 INFO L226 Difference]: Without dead ends: 94064 [2023-12-21 09:56:18,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-21 09:56:18,713 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 1187 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 460 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 2036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 460 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-21 09:56:18,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1202 Valid, 712 Invalid, 2036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [460 Valid, 1576 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-21 09:56:18,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94064 states. [2023-12-21 09:56:21,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94064 to 93911. [2023-12-21 09:56:21,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93911 states, 78548 states have (on average 1.6172149513673169) internal successors, (127029), 78555 states have internal predecessors, (127029), 15335 states have call successors, (15335), 23 states have call predecessors, (15335), 27 states have return successors, (17526), 15334 states have call predecessors, (17526), 15334 states have call successors, (17526) [2023-12-21 09:56:21,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93911 states to 93911 states and 159890 transitions. [2023-12-21 09:56:21,768 INFO L78 Accepts]: Start accepts. Automaton has 93911 states and 159890 transitions. Word has length 147 [2023-12-21 09:56:21,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:56:21,769 INFO L495 AbstractCegarLoop]: Abstraction has 93911 states and 159890 transitions. [2023-12-21 09:56:21,769 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, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-21 09:56:21,769 INFO L276 IsEmpty]: Start isEmpty. Operand 93911 states and 159890 transitions. [2023-12-21 09:56:22,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-21 09:56:22,217 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:56:22,217 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:56:22,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 09:56:22,217 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:56:22,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:56:22,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1284472423, now seen corresponding path program 1 times [2023-12-21 09:56:22,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:56:22,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398283383] [2023-12-21 09:56:22,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:56:22,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:56:22,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:22,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:56:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:22,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:56:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:22,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:56:22,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:22,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:56:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:22,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:56:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:22,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:56:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:22,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:56:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:22,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:56:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:22,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:56:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:22,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 09:56:22,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:22,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 09:56:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:22,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 09:56:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:22,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 09:56:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:22,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-21 09:56:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:22,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-21 09:56:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:22,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-21 09:56:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:22,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-21 09:56:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:22,825 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-21 09:56:22,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:56:22,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398283383] [2023-12-21 09:56:22,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398283383] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:56:22,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867636786] [2023-12-21 09:56:22,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:56:22,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:56:22,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:56:22,827 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 09:56:22,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-21 09:56:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:56:23,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-21 09:56:23,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:56:23,265 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-21 09:56:23,265 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 09:56:23,551 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 09:56:23,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867636786] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 09:56:23,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 09:56:23,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 32 [2023-12-21 09:56:23,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637478817] [2023-12-21 09:56:23,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 09:56:23,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-21 09:56:23,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:56:23,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-21 09:56:23,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=908, Unknown=0, NotChecked=0, Total=992 [2023-12-21 09:56:23,554 INFO L87 Difference]: Start difference. First operand 93911 states and 159890 transitions. Second operand has 32 states, 30 states have (on average 7.866666666666666) internal successors, (236), 24 states have internal predecessors, (236), 9 states have call successors, (50), 12 states have call predecessors, (50), 12 states have return successors, (44), 11 states have call predecessors, (44), 9 states have call successors, (44) [2023-12-21 09:56:53,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:56:53,453 INFO L93 Difference]: Finished difference Result 562151 states and 1006190 transitions. [2023-12-21 09:56:53,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2023-12-21 09:56:53,454 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 7.866666666666666) internal successors, (236), 24 states have internal predecessors, (236), 9 states have call successors, (50), 12 states have call predecessors, (50), 12 states have return successors, (44), 11 states have call predecessors, (44), 9 states have call successors, (44) Word has length 148 [2023-12-21 09:56:53,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:56:56,414 INFO L225 Difference]: With dead ends: 562151 [2023-12-21 09:56:56,414 INFO L226 Difference]: Without dead ends: 561960 [2023-12-21 09:56:56,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11940 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=3913, Invalid=29029, Unknown=0, NotChecked=0, Total=32942 [2023-12-21 09:56:56,631 INFO L413 NwaCegarLoop]: 557 mSDtfsCounter, 8306 mSDsluCounter, 10448 mSDsCounter, 0 mSdLazyCounter, 30315 mSolverCounterSat, 2982 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8342 SdHoareTripleChecker+Valid, 11005 SdHoareTripleChecker+Invalid, 33297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2982 IncrementalHoareTripleChecker+Valid, 30315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2023-12-21 09:56:56,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8342 Valid, 11005 Invalid, 33297 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2982 Valid, 30315 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time] [2023-12-21 09:56:57,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561960 states. [2023-12-21 09:57:15,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561960 to 374199. [2023-12-21 09:57:15,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374199 states, 313086 states have (on average 1.6180027212970238) internal successors, (506574), 312896 states have internal predecessors, (506574), 60962 states have call successors, (60962), 126 states have call predecessors, (60962), 150 states have return successors, (84932), 61188 states have call predecessors, (84932), 60956 states have call successors, (84932) [2023-12-21 09:57:17,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374199 states to 374199 states and 652468 transitions. [2023-12-21 09:57:17,855 INFO L78 Accepts]: Start accepts. Automaton has 374199 states and 652468 transitions. Word has length 148 [2023-12-21 09:57:17,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 09:57:17,856 INFO L495 AbstractCegarLoop]: Abstraction has 374199 states and 652468 transitions. [2023-12-21 09:57:17,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 7.866666666666666) internal successors, (236), 24 states have internal predecessors, (236), 9 states have call successors, (50), 12 states have call predecessors, (50), 12 states have return successors, (44), 11 states have call predecessors, (44), 9 states have call successors, (44) [2023-12-21 09:57:17,856 INFO L276 IsEmpty]: Start isEmpty. Operand 374199 states and 652468 transitions. [2023-12-21 09:57:18,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-21 09:57:18,316 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 09:57:18,316 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 09:57:18,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-21 09:57:18,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:57:18,524 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 09:57:18,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 09:57:18,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1610364328, now seen corresponding path program 1 times [2023-12-21 09:57:18,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 09:57:18,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062005484] [2023-12-21 09:57:18,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:57:18,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 09:57:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:57:18,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 09:57:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:57:18,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 09:57:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:57:18,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 09:57:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:57:18,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 09:57:18,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:57:18,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 09:57:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:57:18,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 09:57:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:57:18,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 09:57:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:57:18,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 09:57:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:57:18,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 09:57:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:57:18,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 09:57:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:57:18,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 09:57:18,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:57:18,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 09:57:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:57:18,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-21 09:57:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:57:18,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-21 09:57:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:57:18,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-21 09:57:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:57:18,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-21 09:57:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:57:18,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-21 09:57:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:57:18,694 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-21 09:57:18,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 09:57:18,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062005484] [2023-12-21 09:57:18,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062005484] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 09:57:18,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798891943] [2023-12-21 09:57:18,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 09:57:18,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 09:57:18,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 09:57:18,696 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-21 09:57:18,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-21 09:57:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 09:57:18,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-21 09:57:18,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 09:57:19,247 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 09:57:19,247 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 09:57:19,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798891943] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 09:57:19,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 09:57:19,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 20 [2023-12-21 09:57:19,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136571350] [2023-12-21 09:57:19,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 09:57:19,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 09:57:19,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 09:57:19,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 09:57:19,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2023-12-21 09:57:19,249 INFO L87 Difference]: Start difference. First operand 374199 states and 652468 transitions. Second operand has 9 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2023-12-21 09:57:27,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 09:57:27,942 INFO L93 Difference]: Finished difference Result 376065 states and 655283 transitions. [2023-12-21 09:57:27,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 09:57:27,944 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 4 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 150 [2023-12-21 09:57:27,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 09:57:29,586 INFO L225 Difference]: With dead ends: 376065 [2023-12-21 09:57:29,586 INFO L226 Difference]: Without dead ends: 374445 [2023-12-21 09:57:29,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-12-21 09:57:29,745 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 693 mSDsluCounter, 2676 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 3125 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-21 09:57:29,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 3125 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-21 09:57:30,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374445 states.