/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_spec9_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-21 10:07:30,046 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-21 10:07:30,127 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 10:07:30,137 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-21 10:07:30,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-21 10:07:30,155 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-21 10:07:30,156 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-21 10:07:30,156 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-21 10:07:30,157 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-21 10:07:30,157 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-21 10:07:30,157 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-21 10:07:30,158 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-21 10:07:30,158 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-21 10:07:30,158 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-21 10:07:30,159 INFO L153 SettingsManager]: * Use SBE=true [2023-12-21 10:07:30,159 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-21 10:07:30,159 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-21 10:07:30,163 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-21 10:07:30,163 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-21 10:07:30,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-21 10:07:30,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-21 10:07:30,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-21 10:07:30,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-21 10:07:30,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-21 10:07:30,169 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-21 10:07:30,169 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-21 10:07:30,169 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-21 10:07:30,169 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-21 10:07:30,170 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-21 10:07:30,170 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-21 10:07:30,171 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-21 10:07:30,171 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-21 10:07:30,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 10:07:30,171 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-21 10:07:30,172 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-21 10:07:30,172 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-21 10:07:30,172 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-21 10:07:30,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-21 10:07:30,172 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-21 10:07:30,172 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-21 10:07:30,172 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-21 10:07:30,173 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-21 10:07:30,173 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-21 10:07:30,173 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-21 10:07:30,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-21 10:07:30,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-21 10:07:30,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-21 10:07:30,420 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-21 10:07:30,421 INFO L274 PluginConnector]: CDTParser initialized [2023-12-21 10:07:30,422 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product33.cil.c [2023-12-21 10:07:31,567 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-21 10:07:31,869 INFO L384 CDTParser]: Found 1 translation units. [2023-12-21 10:07:31,870 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product33.cil.c [2023-12-21 10:07:31,886 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fc540b52/933b67f6e4eb40c08165b57f6155063a/FLAG8e87c423e [2023-12-21 10:07:31,897 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fc540b52/933b67f6e4eb40c08165b57f6155063a [2023-12-21 10:07:31,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-21 10:07:31,900 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-21 10:07:31,901 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-21 10:07:31,901 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-21 10:07:31,908 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-21 10:07:31,908 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:07:31" (1/1) ... [2023-12-21 10:07:31,909 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fa0f635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:07:31, skipping insertion in model container [2023-12-21 10:07:31,909 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:07:31" (1/1) ... [2023-12-21 10:07:31,961 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-21 10:07:32,333 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_spec9_product33.cil.c[33566,33579] [2023-12-21 10:07:32,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 10:07:32,464 INFO L202 MainTranslator]: Completed pre-run [2023-12-21 10:07:32,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2023-12-21 10:07:32,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [208] [2023-12-21 10:07:32,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [523] [2023-12-21 10:07:32,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptForward_spec.i","") [742] [2023-12-21 10:07:32,475 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [785] [2023-12-21 10:07:32,475 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1187] [2023-12-21 10:07:32,475 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1553] [2023-12-21 10:07:32,475 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1562] [2023-12-21 10:07:32,475 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1579] [2023-12-21 10:07:32,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1974] [2023-12-21 10:07:32,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3039] [2023-12-21 10:07:32,520 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_spec9_product33.cil.c[33566,33579] [2023-12-21 10:07:32,559 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-21 10:07:32,589 INFO L206 MainTranslator]: Completed translation [2023-12-21 10:07:32,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:07:32 WrapperNode [2023-12-21 10:07:32,590 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-21 10:07:32,591 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-21 10:07:32,591 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-21 10:07:32,591 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-21 10:07:32,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:07:32" (1/1) ... [2023-12-21 10:07:32,619 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:07:32" (1/1) ... [2023-12-21 10:07:32,676 INFO L138 Inliner]: procedures = 135, calls = 215, calls flagged for inlining = 66, calls inlined = 61, statements flattened = 1069 [2023-12-21 10:07:32,678 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-21 10:07:32,679 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-21 10:07:32,679 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-21 10:07:32,679 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-21 10:07:32,689 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:07:32" (1/1) ... [2023-12-21 10:07:32,690 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:07:32" (1/1) ... [2023-12-21 10:07:32,697 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:07:32" (1/1) ... [2023-12-21 10:07:32,723 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 10:07:32,723 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:07:32" (1/1) ... [2023-12-21 10:07:32,724 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:07:32" (1/1) ... [2023-12-21 10:07:32,752 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:07:32" (1/1) ... [2023-12-21 10:07:32,760 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:07:32" (1/1) ... [2023-12-21 10:07:32,764 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:07:32" (1/1) ... [2023-12-21 10:07:32,768 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:07:32" (1/1) ... [2023-12-21 10:07:32,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-21 10:07:32,776 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-21 10:07:32,777 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-21 10:07:32,777 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-21 10:07:32,777 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:07:32" (1/1) ... [2023-12-21 10:07:32,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-21 10:07:32,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:07:32,837 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 10:07:32,856 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 10:07:32,879 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-21 10:07:32,879 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-21 10:07:32,880 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-21 10:07:32,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-21 10:07:32,880 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-21 10:07:32,880 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-21 10:07:32,881 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-21 10:07:32,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-21 10:07:32,881 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-21 10:07:32,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-21 10:07:32,881 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-21 10:07:32,881 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-21 10:07:32,881 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-21 10:07:32,882 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-21 10:07:32,882 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-21 10:07:32,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-21 10:07:32,883 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-21 10:07:32,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-21 10:07:32,885 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-21 10:07:32,886 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-21 10:07:32,886 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-21 10:07:32,886 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-21 10:07:32,886 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-21 10:07:32,886 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-21 10:07:32,886 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-21 10:07:32,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-21 10:07:32,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-21 10:07:32,886 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-21 10:07:32,887 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-21 10:07:32,887 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-21 10:07:32,887 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-21 10:07:32,887 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-21 10:07:32,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-21 10:07:32,887 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-21 10:07:32,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-21 10:07:32,887 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-21 10:07:32,887 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-21 10:07:32,887 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-21 10:07:32,888 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-21 10:07:32,888 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-21 10:07:32,888 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-21 10:07:32,888 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-21 10:07:32,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-21 10:07:32,888 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-21 10:07:32,888 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-21 10:07:32,888 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-21 10:07:32,888 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-21 10:07:32,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-21 10:07:32,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-21 10:07:32,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-21 10:07:32,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-21 10:07:32,889 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-21 10:07:32,889 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-21 10:07:32,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-21 10:07:32,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-21 10:07:33,131 INFO L241 CfgBuilder]: Building ICFG [2023-12-21 10:07:33,133 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-21 10:07:33,951 INFO L282 CfgBuilder]: Performing block encoding [2023-12-21 10:07:34,026 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-21 10:07:34,027 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-21 10:07:34,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:07:34 BoogieIcfgContainer [2023-12-21 10:07:34,027 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-21 10:07:34,029 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-21 10:07:34,029 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-21 10:07:34,032 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-21 10:07:34,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 10:07:31" (1/3) ... [2023-12-21 10:07:34,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a025e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:07:34, skipping insertion in model container [2023-12-21 10:07:34,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:07:32" (2/3) ... [2023-12-21 10:07:34,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a025e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:07:34, skipping insertion in model container [2023-12-21 10:07:34,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:07:34" (3/3) ... [2023-12-21 10:07:34,035 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product33.cil.c [2023-12-21 10:07:34,050 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-21 10:07:34,050 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-21 10:07:34,109 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-21 10:07:34,115 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;@7a5f8436, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-21 10:07:34,115 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-21 10:07:34,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 357 states, 268 states have (on average 1.5597014925373134) internal successors, (418), 272 states have internal predecessors, (418), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-12-21 10:07:34,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-21 10:07:34,141 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:07:34,142 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:07:34,143 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:07:34,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:07:34,150 INFO L85 PathProgramCache]: Analyzing trace with hash -919404998, now seen corresponding path program 1 times [2023-12-21 10:07:34,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:07:34,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290898025] [2023-12-21 10:07:34,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:07:34,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:07:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:34,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:07:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:34,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:07:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:34,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:07:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:34,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 10:07:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:34,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 10:07:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:34,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 10:07:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:34,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-21 10:07:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:34,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-21 10:07:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:34,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 10:07:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:34,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 10:07:34,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:34,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 10:07:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:34,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 10:07:34,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:34,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 10:07:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:34,855 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-21 10:07:34,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:07:34,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290898025] [2023-12-21 10:07:34,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290898025] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:07:34,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323820427] [2023-12-21 10:07:34,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:07:34,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:07:34,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:07:34,861 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 10:07:34,872 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 10:07:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:35,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-21 10:07:35,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:07:35,261 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 10:07:35,261 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 10:07:35,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323820427] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:07:35,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 10:07:35,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-12-21 10:07:35,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786166281] [2023-12-21 10:07:35,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:07:35,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-21 10:07:35,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:07:35,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-21 10:07:35,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 10:07:35,306 INFO L87 Difference]: Start difference. First operand has 357 states, 268 states have (on average 1.5597014925373134) internal successors, (418), 272 states have internal predecessors, (418), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:07:35,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:07:35,412 INFO L93 Difference]: Finished difference Result 565 states and 844 transitions. [2023-12-21 10:07:35,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-21 10:07:35,422 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 95 [2023-12-21 10:07:35,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:07:35,440 INFO L225 Difference]: With dead ends: 565 [2023-12-21 10:07:35,441 INFO L226 Difference]: Without dead ends: 354 [2023-12-21 10:07:35,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 10:07:35,452 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 10:07:35,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 521 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 10:07:35,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-12-21 10:07:35,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2023-12-21 10:07:35,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 266 states have (on average 1.5451127819548873) internal successors, (411), 269 states have internal predecessors, (411), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-21 10:07:35,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 536 transitions. [2023-12-21 10:07:35,557 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 536 transitions. Word has length 95 [2023-12-21 10:07:35,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:07:35,558 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 536 transitions. [2023-12-21 10:07:35,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:07:35,559 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 536 transitions. [2023-12-21 10:07:35,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-21 10:07:35,569 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:07:35,569 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:07:35,580 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 10:07:35,778 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 10:07:35,779 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:07:35,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:07:35,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1238668327, now seen corresponding path program 1 times [2023-12-21 10:07:35,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:07:35,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272081901] [2023-12-21 10:07:35,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:07:35,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:07:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:36,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:07:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:36,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:07:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:36,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:07:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:36,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 10:07:36,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:36,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 10:07:36,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:36,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 10:07:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:36,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-21 10:07:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:36,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-21 10:07:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:36,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 10:07:36,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:36,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 10:07:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:36,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 10:07:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:36,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 10:07:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:36,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 10:07:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:36,148 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-21 10:07:36,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:07:36,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272081901] [2023-12-21 10:07:36,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272081901] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:07:36,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266798418] [2023-12-21 10:07:36,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:07:36,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:07:36,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:07:36,152 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 10:07:36,175 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 10:07:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:36,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-21 10:07:36,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:07:36,478 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 10:07:36,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 10:07:36,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266798418] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:07:36,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 10:07:36,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-21 10:07:36,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629830271] [2023-12-21 10:07:36,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:07:36,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 10:07:36,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:07:36,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 10:07:36,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 10:07:36,484 INFO L87 Difference]: Start difference. First operand 354 states and 536 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:07:36,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:07:36,570 INFO L93 Difference]: Finished difference Result 561 states and 831 transitions. [2023-12-21 10:07:36,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 10:07:36,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 96 [2023-12-21 10:07:36,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:07:36,575 INFO L225 Difference]: With dead ends: 561 [2023-12-21 10:07:36,575 INFO L226 Difference]: Without dead ends: 356 [2023-12-21 10:07:36,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 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 10:07:36,585 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 0 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 10:07:36,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1035 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 10:07:36,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2023-12-21 10:07:36,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2023-12-21 10:07:36,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 268 states have (on average 1.541044776119403) internal successors, (413), 271 states have internal predecessors, (413), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2023-12-21 10:07:36,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 538 transitions. [2023-12-21 10:07:36,613 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 538 transitions. Word has length 96 [2023-12-21 10:07:36,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:07:36,614 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 538 transitions. [2023-12-21 10:07:36,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:07:36,617 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 538 transitions. [2023-12-21 10:07:36,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-21 10:07:36,619 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:07:36,619 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:07:36,629 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 10:07:36,826 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 10:07:36,826 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:07:36,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:07:36,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1848512091, now seen corresponding path program 1 times [2023-12-21 10:07:36,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:07:36,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262030340] [2023-12-21 10:07:36,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:07:36,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:07:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:07:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:07:37,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:07:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 10:07:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 10:07:37,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 10:07:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-21 10:07:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 10:07:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 10:07:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 10:07:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 10:07:37,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 10:07:37,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 10:07:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,135 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 10:07:37,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:07:37,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262030340] [2023-12-21 10:07:37,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262030340] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:07:37,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079313119] [2023-12-21 10:07:37,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:07:37,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:07:37,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:07:37,137 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 10:07:37,160 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 10:07:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 10:07:37,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:07:37,446 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-21 10:07:37,446 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 10:07:37,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079313119] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:07:37,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 10:07:37,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-21 10:07:37,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781820164] [2023-12-21 10:07:37,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:07:37,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-21 10:07:37,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:07:37,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-21 10:07:37,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-21 10:07:37,450 INFO L87 Difference]: Start difference. First operand 356 states and 538 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:07:37,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:07:37,531 INFO L93 Difference]: Finished difference Result 746 states and 1142 transitions. [2023-12-21 10:07:37,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-21 10:07:37,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 103 [2023-12-21 10:07:37,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:07:37,537 INFO L225 Difference]: With dead ends: 746 [2023-12-21 10:07:37,537 INFO L226 Difference]: Without dead ends: 412 [2023-12-21 10:07:37,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 124 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 10:07:37,541 INFO L413 NwaCegarLoop]: 521 mSDtfsCounter, 109 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-21 10:07:37,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 994 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-21 10:07:37,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2023-12-21 10:07:37,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 407. [2023-12-21 10:07:37,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 308 states have (on average 1.5584415584415585) internal successors, (480), 311 states have internal predecessors, (480), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-21 10:07:37,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 627 transitions. [2023-12-21 10:07:37,583 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 627 transitions. Word has length 103 [2023-12-21 10:07:37,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:07:37,584 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 627 transitions. [2023-12-21 10:07:37,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:07:37,584 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 627 transitions. [2023-12-21 10:07:37,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-21 10:07:37,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:07:37,589 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:07:37,599 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 10:07:37,796 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 10:07:37,797 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:07:37,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:07:37,798 INFO L85 PathProgramCache]: Analyzing trace with hash 131745774, now seen corresponding path program 1 times [2023-12-21 10:07:37,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:07:37,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024923178] [2023-12-21 10:07:37,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:07:37,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:07:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:07:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:07:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:07:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-21 10:07:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-21 10:07:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-21 10:07:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-21 10:07:37,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:37,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 10:07:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 10:07:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 10:07:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 10:07:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 10:07:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 10:07:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,012 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 10:07:38,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:07:38,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024923178] [2023-12-21 10:07:38,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024923178] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:07:38,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10061482] [2023-12-21 10:07:38,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:07:38,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:07:38,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:07:38,013 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 10:07:38,034 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 10:07:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 1043 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-21 10:07:38,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:07:38,358 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-21 10:07:38,359 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 10:07:38,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10061482] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:07:38,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 10:07:38,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-21 10:07:38,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410478652] [2023-12-21 10:07:38,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:07:38,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 10:07:38,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:07:38,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 10:07:38,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-21 10:07:38,361 INFO L87 Difference]: Start difference. First operand 407 states and 627 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 10:07:38,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:07:38,472 INFO L93 Difference]: Finished difference Result 809 states and 1248 transitions. [2023-12-21 10:07:38,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 10:07:38,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 104 [2023-12-21 10:07:38,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:07:38,477 INFO L225 Difference]: With dead ends: 809 [2023-12-21 10:07:38,477 INFO L226 Difference]: Without dead ends: 409 [2023-12-21 10:07:38,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 123 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 10:07:38,481 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 8 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2025 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:07:38,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2025 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:07:38,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-12-21 10:07:38,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2023-12-21 10:07:38,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 309 states have (on average 1.5566343042071198) internal successors, (481), 313 states have internal predecessors, (481), 74 states have call successors, (74), 24 states have call predecessors, (74), 25 states have return successors, (75), 73 states have call predecessors, (75), 73 states have call successors, (75) [2023-12-21 10:07:38,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 630 transitions. [2023-12-21 10:07:38,508 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 630 transitions. Word has length 104 [2023-12-21 10:07:38,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:07:38,508 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 630 transitions. [2023-12-21 10:07:38,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 10:07:38,509 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 630 transitions. [2023-12-21 10:07:38,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-21 10:07:38,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:07:38,511 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:07:38,526 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 10:07:38,723 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 10:07:38,724 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:07:38,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:07:38,724 INFO L85 PathProgramCache]: Analyzing trace with hash -740147269, now seen corresponding path program 1 times [2023-12-21 10:07:38,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:07:38,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557707859] [2023-12-21 10:07:38,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:07:38,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:07:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:07:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:07:38,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:07:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:07:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-21 10:07:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-21 10:07:38,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-21 10:07:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 10:07:38,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 10:07:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 10:07:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 10:07:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 10:07:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 10:07:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:38,955 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-21 10:07:38,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:07:38,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557707859] [2023-12-21 10:07:38,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557707859] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:07:38,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727974187] [2023-12-21 10:07:38,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:07:38,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:07:38,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:07:38,958 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 10:07:38,965 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 10:07:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:39,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 1044 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-21 10:07:39,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:07:39,292 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-21 10:07:39,293 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-21 10:07:39,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727974187] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:07:39,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-21 10:07:39,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-21 10:07:39,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470701191] [2023-12-21 10:07:39,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:07:39,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-21 10:07:39,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:07:39,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-21 10:07:39,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-21 10:07:39,295 INFO L87 Difference]: Start difference. First operand 409 states and 630 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 10:07:39,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:07:39,402 INFO L93 Difference]: Finished difference Result 811 states and 1253 transitions. [2023-12-21 10:07:39,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-21 10:07:39,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 105 [2023-12-21 10:07:39,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:07:39,405 INFO L225 Difference]: With dead ends: 811 [2023-12-21 10:07:39,405 INFO L226 Difference]: Without dead ends: 411 [2023-12-21 10:07:39,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 123 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 10:07:39,407 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 8 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-21 10:07:39,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2011 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-21 10:07:39,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2023-12-21 10:07:39,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2023-12-21 10:07:39,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 310 states have (on average 1.5548387096774194) internal successors, (482), 315 states have internal predecessors, (482), 74 states have call successors, (74), 24 states have call predecessors, (74), 26 states have return successors, (80), 73 states have call predecessors, (80), 73 states have call successors, (80) [2023-12-21 10:07:39,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 636 transitions. [2023-12-21 10:07:39,422 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 636 transitions. Word has length 105 [2023-12-21 10:07:39,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:07:39,422 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 636 transitions. [2023-12-21 10:07:39,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 10:07:39,423 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 636 transitions. [2023-12-21 10:07:39,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-21 10:07:39,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:07:39,424 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:07:39,436 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 10:07:39,636 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 10:07:39,636 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:07:39,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:07:39,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1806599905, now seen corresponding path program 1 times [2023-12-21 10:07:39,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:07:39,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431228615] [2023-12-21 10:07:39,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:07:39,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:07:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:39,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:07:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:39,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:07:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:39,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:07:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:39,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:07:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:39,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:07:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:39,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-21 10:07:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:39,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-21 10:07:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:39,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-21 10:07:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:39,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 10:07:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:39,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 10:07:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:39,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 10:07:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:39,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 10:07:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:39,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 10:07:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:39,828 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 10:07:39,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:07:39,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431228615] [2023-12-21 10:07:39,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431228615] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:07:39,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:07:39,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 10:07:39,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875737975] [2023-12-21 10:07:39,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:07:39,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 10:07:39,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:07:39,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 10:07:39,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 10:07:39,830 INFO L87 Difference]: Start difference. First operand 411 states and 636 transitions. Second operand has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 10:07:42,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:07:42,015 INFO L93 Difference]: Finished difference Result 982 states and 1539 transitions. [2023-12-21 10:07:42,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 10:07:42,016 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 106 [2023-12-21 10:07:42,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:07:42,023 INFO L225 Difference]: With dead ends: 982 [2023-12-21 10:07:42,023 INFO L226 Difference]: Without dead ends: 590 [2023-12-21 10:07:42,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-21 10:07:42,025 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 1270 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2743 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 3227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 2743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-21 10:07:42,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1271 Valid, 1011 Invalid, 3227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 2743 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-21 10:07:42,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2023-12-21 10:07:42,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 411. [2023-12-21 10:07:42,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 310 states have (on average 1.5548387096774194) internal successors, (482), 315 states have internal predecessors, (482), 74 states have call successors, (74), 24 states have call predecessors, (74), 26 states have return successors, (79), 73 states have call predecessors, (79), 73 states have call successors, (79) [2023-12-21 10:07:42,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 635 transitions. [2023-12-21 10:07:42,070 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 635 transitions. Word has length 106 [2023-12-21 10:07:42,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:07:42,071 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 635 transitions. [2023-12-21 10:07:42,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.375) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 10:07:42,071 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 635 transitions. [2023-12-21 10:07:42,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-21 10:07:42,074 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:07:42,074 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:07:42,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-21 10:07:42,075 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:07:42,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:07:42,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1445194290, now seen corresponding path program 2 times [2023-12-21 10:07:42,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:07:42,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605699395] [2023-12-21 10:07:42,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:07:42,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:07:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:42,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:07:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:42,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:07:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:42,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:07:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:42,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:07:42,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:42,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:07:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:42,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-21 10:07:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:42,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-21 10:07:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:42,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-21 10:07:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:42,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 10:07:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:42,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 10:07:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:42,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 10:07:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:42,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 10:07:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:42,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 10:07:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:42,273 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-21 10:07:42,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:07:42,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605699395] [2023-12-21 10:07:42,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605699395] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:07:42,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:07:42,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-21 10:07:42,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021428691] [2023-12-21 10:07:42,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:07:42,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-21 10:07:42,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:07:42,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-21 10:07:42,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-21 10:07:42,276 INFO L87 Difference]: Start difference. First operand 411 states and 635 transitions. Second operand has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 10:07:44,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:07:44,338 INFO L93 Difference]: Finished difference Result 984 states and 1542 transitions. [2023-12-21 10:07:44,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-21 10:07:44,339 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 107 [2023-12-21 10:07:44,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:07:44,346 INFO L225 Difference]: With dead ends: 984 [2023-12-21 10:07:44,346 INFO L226 Difference]: Without dead ends: 592 [2023-12-21 10:07:44,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-21 10:07:44,349 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 1318 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2629 mSolverCounterSat, 507 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 3136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 507 IncrementalHoareTripleChecker+Valid, 2629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-21 10:07:44,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 1011 Invalid, 3136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [507 Valid, 2629 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-21 10:07:44,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2023-12-21 10:07:44,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 413. [2023-12-21 10:07:44,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 311 states have (on average 1.5530546623794212) internal successors, (483), 317 states have internal predecessors, (483), 74 states have call successors, (74), 24 states have call predecessors, (74), 27 states have return successors, (81), 73 states have call predecessors, (81), 73 states have call successors, (81) [2023-12-21 10:07:44,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 638 transitions. [2023-12-21 10:07:44,382 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 638 transitions. Word has length 107 [2023-12-21 10:07:44,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:07:44,382 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 638 transitions. [2023-12-21 10:07:44,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.5) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-21 10:07:44,383 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 638 transitions. [2023-12-21 10:07:44,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-21 10:07:44,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:07:44,384 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:07:44,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-21 10:07:44,385 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:07:44,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:07:44,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1877413414, now seen corresponding path program 1 times [2023-12-21 10:07:44,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:07:44,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633540362] [2023-12-21 10:07:44,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:07:44,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:07:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:44,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:07:44,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:44,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:07:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:44,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:07:44,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:44,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:07:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:44,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:07:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:44,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:07:44,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:44,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-21 10:07:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:44,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-21 10:07:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:44,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 10:07:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:44,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 10:07:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:44,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 10:07:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:44,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 10:07:44,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:44,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 10:07:44,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:44,592 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-21 10:07:44,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:07:44,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633540362] [2023-12-21 10:07:44,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633540362] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:07:44,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:07:44,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 10:07:44,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449935126] [2023-12-21 10:07:44,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:07:44,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 10:07:44,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:07:44,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 10:07:44,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-21 10:07:44,594 INFO L87 Difference]: Start difference. First operand 413 states and 638 transitions. Second operand has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-21 10:07:47,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:07:47,296 INFO L93 Difference]: Finished difference Result 982 states and 1537 transitions. [2023-12-21 10:07:47,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 10:07:47,297 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 108 [2023-12-21 10:07:47,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:07:47,300 INFO L225 Difference]: With dead ends: 982 [2023-12-21 10:07:47,301 INFO L226 Difference]: Without dead ends: 592 [2023-12-21 10:07:47,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-21 10:07:47,303 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 1314 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 4417 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 4907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 4417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-21 10:07:47,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 1398 Invalid, 4907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 4417 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-21 10:07:47,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2023-12-21 10:07:47,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 413. [2023-12-21 10:07:47,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 311 states have (on average 1.5530546623794212) internal successors, (483), 317 states have internal predecessors, (483), 74 states have call successors, (74), 24 states have call predecessors, (74), 27 states have return successors, (80), 73 states have call predecessors, (80), 73 states have call successors, (80) [2023-12-21 10:07:47,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 637 transitions. [2023-12-21 10:07:47,330 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 637 transitions. Word has length 108 [2023-12-21 10:07:47,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:07:47,330 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 637 transitions. [2023-12-21 10:07:47,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 8 states have internal predecessors, (72), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-21 10:07:47,330 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 637 transitions. [2023-12-21 10:07:47,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-21 10:07:47,332 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:07:47,332 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:07:47,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-21 10:07:47,332 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:07:47,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:07:47,333 INFO L85 PathProgramCache]: Analyzing trace with hash 2051406152, now seen corresponding path program 2 times [2023-12-21 10:07:47,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:07:47,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971503801] [2023-12-21 10:07:47,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:07:47,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:07:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:47,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:07:47,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:47,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:07:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:47,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:07:47,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:47,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:07:47,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:47,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:07:47,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:47,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:07:47,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:47,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-21 10:07:47,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:47,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 10:07:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:47,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 10:07:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:47,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 10:07:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:47,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 10:07:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:47,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 10:07:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:47,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 10:07:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:47,537 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-21 10:07:47,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:07:47,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971503801] [2023-12-21 10:07:47,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971503801] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:07:47,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:07:47,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-21 10:07:47,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229354320] [2023-12-21 10:07:47,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:07:47,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-21 10:07:47,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:07:47,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-21 10:07:47,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-21 10:07:47,539 INFO L87 Difference]: Start difference. First operand 413 states and 637 transitions. Second operand has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-21 10:07:50,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:07:50,431 INFO L93 Difference]: Finished difference Result 984 states and 1543 transitions. [2023-12-21 10:07:50,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-21 10:07:50,432 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 109 [2023-12-21 10:07:50,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:07:50,436 INFO L225 Difference]: With dead ends: 984 [2023-12-21 10:07:50,436 INFO L226 Difference]: Without dead ends: 594 [2023-12-21 10:07:50,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-21 10:07:50,439 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 1332 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 4451 mSolverCounterSat, 504 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 4955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 504 IncrementalHoareTripleChecker+Valid, 4451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-21 10:07:50,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1333 Valid, 1398 Invalid, 4955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [504 Valid, 4451 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-21 10:07:50,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2023-12-21 10:07:50,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 415. [2023-12-21 10:07:50,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 312 states have (on average 1.5512820512820513) internal successors, (484), 319 states have internal predecessors, (484), 74 states have call successors, (74), 24 states have call predecessors, (74), 28 states have return successors, (85), 73 states have call predecessors, (85), 73 states have call successors, (85) [2023-12-21 10:07:50,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 643 transitions. [2023-12-21 10:07:50,469 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 643 transitions. Word has length 109 [2023-12-21 10:07:50,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:07:50,469 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 643 transitions. [2023-12-21 10:07:50,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.636363636363637) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-21 10:07:50,469 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 643 transitions. [2023-12-21 10:07:50,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-21 10:07:50,471 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:07:50,471 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:07:50,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-21 10:07:50,471 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:07:50,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:07:50,472 INFO L85 PathProgramCache]: Analyzing trace with hash -233061707, now seen corresponding path program 1 times [2023-12-21 10:07:50,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:07:50,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552745571] [2023-12-21 10:07:50,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:07:50,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:07:50,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:50,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:07:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:50,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:07:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:50,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:07:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:50,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:07:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:50,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:07:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:50,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:07:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:50,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-21 10:07:50,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:50,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 10:07:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:50,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 10:07:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:50,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 10:07:50,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:50,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 10:07:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:50,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 10:07:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:50,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 10:07:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:50,686 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-21 10:07:50,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:07:50,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552745571] [2023-12-21 10:07:50,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552745571] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-21 10:07:50,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869907483] [2023-12-21 10:07:50,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:07:50,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-21 10:07:50,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-21 10:07:50,689 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 10:07:50,717 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 10:07:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:50,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 1049 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-21 10:07:50,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-21 10:07:51,000 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:07:51,001 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-21 10:07:51,072 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:07:51,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869907483] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-21 10:07:51,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-21 10:07:51,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-12-21 10:07:51,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538120372] [2023-12-21 10:07:51,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-21 10:07:51,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-21 10:07:51,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:07:51,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-21 10:07:51,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-12-21 10:07:51,074 INFO L87 Difference]: Start difference. First operand 415 states and 643 transitions. Second operand has 15 states, 14 states have (on average 8.714285714285714) internal successors, (122), 11 states have internal predecessors, (122), 4 states have call successors, (31), 6 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-12-21 10:07:54,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:07:54,714 INFO L93 Difference]: Finished difference Result 1333 states and 2189 transitions. [2023-12-21 10:07:54,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-21 10:07:54,715 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.714285714285714) internal successors, (122), 11 states have internal predecessors, (122), 4 states have call successors, (31), 6 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 110 [2023-12-21 10:07:54,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:07:54,721 INFO L225 Difference]: With dead ends: 1333 [2023-12-21 10:07:54,722 INFO L226 Difference]: Without dead ends: 944 [2023-12-21 10:07:54,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-12-21 10:07:54,724 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 2279 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 6569 mSolverCounterSat, 754 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2296 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 7323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 754 IncrementalHoareTripleChecker+Valid, 6569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-21 10:07:54,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2296 Valid, 1703 Invalid, 7323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [754 Valid, 6569 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-21 10:07:54,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2023-12-21 10:07:54,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 750. [2023-12-21 10:07:54,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 583 states have (on average 1.6072041166380788) internal successors, (937), 590 states have internal predecessors, (937), 138 states have call successors, (138), 24 states have call predecessors, (138), 28 states have return successors, (159), 137 states have call predecessors, (159), 137 states have call successors, (159) [2023-12-21 10:07:54,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1234 transitions. [2023-12-21 10:07:54,768 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1234 transitions. Word has length 110 [2023-12-21 10:07:54,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:07:54,769 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1234 transitions. [2023-12-21 10:07:54,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.714285714285714) internal successors, (122), 11 states have internal predecessors, (122), 4 states have call successors, (31), 6 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2023-12-21 10:07:54,770 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1234 transitions. [2023-12-21 10:07:54,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-21 10:07:54,772 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:07:54,773 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:07:54,782 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 10:07:54,980 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 10:07:54,980 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:07:54,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:07:54,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1588707305, now seen corresponding path program 1 times [2023-12-21 10:07:54,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:07:54,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810084385] [2023-12-21 10:07:54,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:07:54,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:07:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:55,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:07:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:55,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:07:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:55,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:07:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:55,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:07:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:55,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:07:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:55,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:07:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:55,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-21 10:07:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:55,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 10:07:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:55,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 10:07:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:55,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 10:07:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:55,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 10:07:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:55,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-21 10:07:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:55,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 10:07:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:55,074 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:07:55,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:07:55,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810084385] [2023-12-21 10:07:55,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810084385] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:07:55,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:07:55,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:07:55,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037394124] [2023-12-21 10:07:55,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:07:55,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:07:55,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:07:55,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:07:55,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:07:55,076 INFO L87 Difference]: Start difference. First operand 750 states and 1234 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:07:56,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:07:56,662 INFO L93 Difference]: Finished difference Result 1928 states and 3248 transitions. [2023-12-21 10:07:56,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:07:56,662 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2023-12-21 10:07:56,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:07:56,670 INFO L225 Difference]: With dead ends: 1928 [2023-12-21 10:07:56,670 INFO L226 Difference]: Without dead ends: 1246 [2023-12-21 10:07:56,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 10:07:56,673 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 1354 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 1589 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1369 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 2144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 1589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-21 10:07:56,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1369 Valid, 762 Invalid, 2144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 1589 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-21 10:07:56,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2023-12-21 10:07:56,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1062. [2023-12-21 10:07:56,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 831 states have (on average 1.6233453670276774) internal successors, (1349), 838 states have internal predecessors, (1349), 202 states have call successors, (202), 24 states have call predecessors, (202), 28 states have return successors, (233), 201 states have call predecessors, (233), 201 states have call successors, (233) [2023-12-21 10:07:56,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1784 transitions. [2023-12-21 10:07:56,730 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1784 transitions. Word has length 114 [2023-12-21 10:07:56,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:07:56,730 INFO L495 AbstractCegarLoop]: Abstraction has 1062 states and 1784 transitions. [2023-12-21 10:07:56,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:07:56,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1784 transitions. [2023-12-21 10:07:56,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-21 10:07:56,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:07:56,735 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:07:56,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-21 10:07:56,735 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:07:56,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:07:56,736 INFO L85 PathProgramCache]: Analyzing trace with hash -2123098083, now seen corresponding path program 1 times [2023-12-21 10:07:56,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:07:56,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102733318] [2023-12-21 10:07:56,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:07:56,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:07:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:56,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:07:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:56,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:07:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:56,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:07:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:56,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:07:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:56,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:07:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:56,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:07:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:56,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-21 10:07:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:56,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 10:07:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:56,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 10:07:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:56,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 10:07:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:56,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 10:07:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:56,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-21 10:07:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:56,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 10:07:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:56,823 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:07:56,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:07:56,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102733318] [2023-12-21 10:07:56,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102733318] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:07:56,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:07:56,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:07:56,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341512676] [2023-12-21 10:07:56,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:07:56,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:07:56,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:07:56,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:07:56,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:07:56,825 INFO L87 Difference]: Start difference. First operand 1062 states and 1784 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:07:58,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:07:58,468 INFO L93 Difference]: Finished difference Result 2697 states and 4596 transitions. [2023-12-21 10:07:58,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:07:58,469 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2023-12-21 10:07:58,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:07:58,480 INFO L225 Difference]: With dead ends: 2697 [2023-12-21 10:07:58,481 INFO L226 Difference]: Without dead ends: 1753 [2023-12-21 10:07:58,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 10:07:58,486 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 1393 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1408 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 2099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 561 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-21 10:07:58,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1408 Valid, 752 Invalid, 2099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [561 Valid, 1538 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-21 10:07:58,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2023-12-21 10:07:58,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1569. [2023-12-21 10:07:58,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1243 states have (on average 1.6323411102172165) internal successors, (2029), 1250 states have internal predecessors, (2029), 297 states have call successors, (297), 24 states have call predecessors, (297), 28 states have return successors, (328), 296 states have call predecessors, (328), 296 states have call successors, (328) [2023-12-21 10:07:58,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2654 transitions. [2023-12-21 10:07:58,571 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2654 transitions. Word has length 115 [2023-12-21 10:07:58,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:07:58,571 INFO L495 AbstractCegarLoop]: Abstraction has 1569 states and 2654 transitions. [2023-12-21 10:07:58,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:07:58,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2654 transitions. [2023-12-21 10:07:58,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-21 10:07:58,579 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:07:58,579 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:07:58,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-21 10:07:58,579 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:07:58,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:07:58,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1388242231, now seen corresponding path program 1 times [2023-12-21 10:07:58,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:07:58,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63994251] [2023-12-21 10:07:58,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:07:58,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:07:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:58,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:07:58,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:58,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:07:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:58,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:07:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:58,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:07:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:58,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:07:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:58,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:07:58,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:58,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-21 10:07:58,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:58,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 10:07:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:58,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 10:07:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:58,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 10:07:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:58,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 10:07:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:58,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-21 10:07:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:58,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 10:07:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:07:58,667 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:07:58,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:07:58,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63994251] [2023-12-21 10:07:58,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63994251] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:07:58,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:07:58,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:07:58,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818095899] [2023-12-21 10:07:58,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:07:58,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:07:58,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:07:58,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:07:58,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:07:58,669 INFO L87 Difference]: Start difference. First operand 1569 states and 2654 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:08:00,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:08:00,128 INFO L93 Difference]: Finished difference Result 3843 states and 6621 transitions. [2023-12-21 10:08:00,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:08:00,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2023-12-21 10:08:00,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:08:00,142 INFO L225 Difference]: With dead ends: 3843 [2023-12-21 10:08:00,142 INFO L226 Difference]: Without dead ends: 2520 [2023-12-21 10:08:00,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 10:08:00,148 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1437 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1547 mSolverCounterSat, 558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 2105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 1547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 10:08:00,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1452 Valid, 738 Invalid, 2105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 1547 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 10:08:00,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2520 states. [2023-12-21 10:08:00,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2520 to 2336. [2023-12-21 10:08:00,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 1887 states have (on average 1.6396396396396395) internal successors, (3094), 1894 states have internal predecessors, (3094), 420 states have call successors, (420), 24 states have call predecessors, (420), 28 states have return successors, (467), 419 states have call predecessors, (467), 419 states have call successors, (467) [2023-12-21 10:08:00,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 3981 transitions. [2023-12-21 10:08:00,261 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 3981 transitions. Word has length 116 [2023-12-21 10:08:00,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:08:00,261 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 3981 transitions. [2023-12-21 10:08:00,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:08:00,261 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 3981 transitions. [2023-12-21 10:08:00,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-21 10:08:00,271 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:08:00,271 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:08:00,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-21 10:08:00,271 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:08:00,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:08:00,271 INFO L85 PathProgramCache]: Analyzing trace with hash 809010012, now seen corresponding path program 1 times [2023-12-21 10:08:00,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:08:00,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736792015] [2023-12-21 10:08:00,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:08:00,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:08:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:00,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:08:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:00,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:08:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:00,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:08:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:00,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:08:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:00,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:08:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:00,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:08:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:00,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-21 10:08:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:00,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 10:08:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:00,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-21 10:08:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:00,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-21 10:08:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:00,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 10:08:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:00,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-21 10:08:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:00,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 10:08:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:00,360 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:08:00,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:08:00,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736792015] [2023-12-21 10:08:00,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736792015] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:08:00,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:08:00,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:08:00,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023698365] [2023-12-21 10:08:00,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:08:00,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:08:00,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:08:00,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:08:00,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:08:00,362 INFO L87 Difference]: Start difference. First operand 2336 states and 3981 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:08:01,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:08:01,893 INFO L93 Difference]: Finished difference Result 5625 states and 9779 transitions. [2023-12-21 10:08:01,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:08:01,894 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2023-12-21 10:08:01,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:08:01,913 INFO L225 Difference]: With dead ends: 5625 [2023-12-21 10:08:01,913 INFO L226 Difference]: Without dead ends: 3744 [2023-12-21 10:08:01,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 10:08:01,921 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1311 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1625 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 2137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 1625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 10:08:01,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 738 Invalid, 2137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 1625 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 10:08:01,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3744 states. [2023-12-21 10:08:02,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3744 to 3560. [2023-12-21 10:08:02,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 2932 states have (on average 1.644611186903138) internal successors, (4822), 2939 states have internal predecessors, (4822), 599 states have call successors, (599), 24 states have call predecessors, (599), 28 states have return successors, (672), 598 states have call predecessors, (672), 598 states have call successors, (672) [2023-12-21 10:08:02,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 6093 transitions. [2023-12-21 10:08:02,126 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 6093 transitions. Word has length 117 [2023-12-21 10:08:02,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:08:02,127 INFO L495 AbstractCegarLoop]: Abstraction has 3560 states and 6093 transitions. [2023-12-21 10:08:02,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:08:02,127 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 6093 transitions. [2023-12-21 10:08:02,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-21 10:08:02,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:08:02,138 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:08:02,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-21 10:08:02,139 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:08:02,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:08:02,139 INFO L85 PathProgramCache]: Analyzing trace with hash -425768051, now seen corresponding path program 1 times [2023-12-21 10:08:02,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:08:02,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097165633] [2023-12-21 10:08:02,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:08:02,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:08:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:02,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:08:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:02,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:08:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:02,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:08:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:02,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:08:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:02,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:08:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:02,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:08:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:02,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-21 10:08:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:02,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 10:08:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:02,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-21 10:08:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:02,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-21 10:08:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:02,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 10:08:02,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:02,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-21 10:08:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:02,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 10:08:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:02,235 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:08:02,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:08:02,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097165633] [2023-12-21 10:08:02,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097165633] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:08:02,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:08:02,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:08:02,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276959163] [2023-12-21 10:08:02,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:08:02,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:08:02,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:08:02,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:08:02,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:08:02,237 INFO L87 Difference]: Start difference. First operand 3560 states and 6093 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:08:03,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:08:03,813 INFO L93 Difference]: Finished difference Result 8604 states and 15019 transitions. [2023-12-21 10:08:03,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:08:03,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2023-12-21 10:08:03,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:08:03,846 INFO L225 Difference]: With dead ends: 8604 [2023-12-21 10:08:03,846 INFO L226 Difference]: Without dead ends: 5802 [2023-12-21 10:08:03,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 10:08:03,858 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 1434 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 1491 mSolverCounterSat, 564 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 2055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 1491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 10:08:03,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1449 Valid, 769 Invalid, 2055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [564 Valid, 1491 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 10:08:03,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5802 states. [2023-12-21 10:08:04,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5802 to 5618. [2023-12-21 10:08:04,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5618 states, 4614 states have (on average 1.6352405721716514) internal successors, (7545), 4621 states have internal predecessors, (7545), 975 states have call successors, (975), 24 states have call predecessors, (975), 28 states have return successors, (1092), 974 states have call predecessors, (1092), 974 states have call successors, (1092) [2023-12-21 10:08:04,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5618 states to 5618 states and 9612 transitions. [2023-12-21 10:08:04,140 INFO L78 Accepts]: Start accepts. Automaton has 5618 states and 9612 transitions. Word has length 118 [2023-12-21 10:08:04,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:08:04,140 INFO L495 AbstractCegarLoop]: Abstraction has 5618 states and 9612 transitions. [2023-12-21 10:08:04,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:08:04,141 INFO L276 IsEmpty]: Start isEmpty. Operand 5618 states and 9612 transitions. [2023-12-21 10:08:04,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-21 10:08:04,194 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:08:04,194 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:08:04,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-21 10:08:04,194 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:08:04,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:08:04,195 INFO L85 PathProgramCache]: Analyzing trace with hash -762245480, now seen corresponding path program 1 times [2023-12-21 10:08:04,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:08:04,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663208144] [2023-12-21 10:08:04,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:08:04,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:08:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:04,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:08:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:04,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:08:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:04,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:08:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:04,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:08:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:04,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:08:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:04,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:08:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:04,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-21 10:08:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:04,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 10:08:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:04,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-21 10:08:04,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:04,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-21 10:08:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:04,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-21 10:08:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:04,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-21 10:08:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:04,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-21 10:08:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:04,310 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:08:04,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:08:04,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663208144] [2023-12-21 10:08:04,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663208144] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:08:04,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:08:04,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:08:04,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156606862] [2023-12-21 10:08:04,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:08:04,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:08:04,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:08:04,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:08:04,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:08:04,312 INFO L87 Difference]: Start difference. First operand 5618 states and 9612 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:08:06,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:08:06,058 INFO L93 Difference]: Finished difference Result 13965 states and 24376 transitions. [2023-12-21 10:08:06,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:08:06,058 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2023-12-21 10:08:06,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:08:06,114 INFO L225 Difference]: With dead ends: 13965 [2023-12-21 10:08:06,114 INFO L226 Difference]: Without dead ends: 9491 [2023-12-21 10:08:06,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 10:08:06,129 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1389 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1567 mSolverCounterSat, 542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1404 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 2109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 542 IncrementalHoareTripleChecker+Valid, 1567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-21 10:08:06,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1404 Valid, 739 Invalid, 2109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [542 Valid, 1567 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-21 10:08:06,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9491 states. [2023-12-21 10:08:06,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9491 to 9307. [2023-12-21 10:08:06,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9307 states, 7697 states have (on average 1.633753410419644) internal successors, (12575), 7704 states have internal predecessors, (12575), 1581 states have call successors, (1581), 24 states have call predecessors, (1581), 28 states have return successors, (1776), 1580 states have call predecessors, (1776), 1580 states have call successors, (1776) [2023-12-21 10:08:06,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9307 states to 9307 states and 15932 transitions. [2023-12-21 10:08:06,599 INFO L78 Accepts]: Start accepts. Automaton has 9307 states and 15932 transitions. Word has length 119 [2023-12-21 10:08:06,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:08:06,599 INFO L495 AbstractCegarLoop]: Abstraction has 9307 states and 15932 transitions. [2023-12-21 10:08:06,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:08:06,599 INFO L276 IsEmpty]: Start isEmpty. Operand 9307 states and 15932 transitions. [2023-12-21 10:08:06,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-21 10:08:06,623 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:08:06,623 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:08:06,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-21 10:08:06,624 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:08:06,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:08:06,624 INFO L85 PathProgramCache]: Analyzing trace with hash -421638177, now seen corresponding path program 1 times [2023-12-21 10:08:06,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:08:06,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908145186] [2023-12-21 10:08:06,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:08:06,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:08:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:06,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:08:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:06,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:08:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:06,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:08:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:06,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:08:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:06,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:08:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:06,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:08:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:06,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-21 10:08:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:06,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-21 10:08:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:06,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-21 10:08:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:06,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-21 10:08:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:06,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-21 10:08:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:06,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-21 10:08:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:06,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-21 10:08:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:06,712 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:08:06,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:08:06,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908145186] [2023-12-21 10:08:06,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908145186] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:08:06,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:08:06,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:08:06,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676437201] [2023-12-21 10:08:06,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:08:06,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:08:06,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:08:06,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:08:06,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:08:06,714 INFO L87 Difference]: Start difference. First operand 9307 states and 15932 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:08:08,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:08:08,426 INFO L93 Difference]: Finished difference Result 24157 states and 42140 transitions. [2023-12-21 10:08:08,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:08:08,426 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2023-12-21 10:08:08,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:08:08,490 INFO L225 Difference]: With dead ends: 24157 [2023-12-21 10:08:08,490 INFO L226 Difference]: Without dead ends: 16451 [2023-12-21 10:08:08,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 10:08:08,523 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 1415 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 1595 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1430 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 2140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 1595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 10:08:08,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1430 Valid, 782 Invalid, 2140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [545 Valid, 1595 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 10:08:08,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16451 states. [2023-12-21 10:08:09,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16451 to 16267. [2023-12-21 10:08:09,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16267 states, 13454 states have (on average 1.6253902185223725) internal successors, (21868), 13461 states have internal predecessors, (21868), 2784 states have call successors, (2784), 24 states have call predecessors, (2784), 28 states have return successors, (3123), 2783 states have call predecessors, (3123), 2783 states have call successors, (3123) [2023-12-21 10:08:09,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16267 states to 16267 states and 27775 transitions. [2023-12-21 10:08:09,263 INFO L78 Accepts]: Start accepts. Automaton has 16267 states and 27775 transitions. Word has length 120 [2023-12-21 10:08:09,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:08:09,263 INFO L495 AbstractCegarLoop]: Abstraction has 16267 states and 27775 transitions. [2023-12-21 10:08:09,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:08:09,263 INFO L276 IsEmpty]: Start isEmpty. Operand 16267 states and 27775 transitions. [2023-12-21 10:08:09,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-21 10:08:09,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:08:09,419 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:08:09,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-21 10:08:09,419 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:08:09,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:08:09,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1038875465, now seen corresponding path program 1 times [2023-12-21 10:08:09,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:08:09,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801990467] [2023-12-21 10:08:09,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:08:09,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:08:09,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:09,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:08:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:09,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:08:09,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:09,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:08:09,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:09,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:08:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:09,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:08:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:09,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:08:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:09,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-21 10:08:09,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:09,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-21 10:08:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:09,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-21 10:08:09,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:09,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-21 10:08:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:09,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-21 10:08:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:09,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-21 10:08:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:09,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-21 10:08:09,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:09,525 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:08:09,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:08:09,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801990467] [2023-12-21 10:08:09,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801990467] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:08:09,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:08:09,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:08:09,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481757312] [2023-12-21 10:08:09,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:08:09,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:08:09,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:08:09,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:08:09,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:08:09,528 INFO L87 Difference]: Start difference. First operand 16267 states and 27775 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:08:11,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:08:11,538 INFO L93 Difference]: Finished difference Result 43132 states and 75152 transitions. [2023-12-21 10:08:11,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:08:11,538 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2023-12-21 10:08:11,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:08:11,659 INFO L225 Difference]: With dead ends: 43132 [2023-12-21 10:08:11,660 INFO L226 Difference]: Without dead ends: 29114 [2023-12-21 10:08:11,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 10:08:11,696 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1374 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 544 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 2117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 544 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 10:08:11,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 739 Invalid, 2117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [544 Valid, 1573 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 10:08:11,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29114 states. [2023-12-21 10:08:12,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29114 to 28930. [2023-12-21 10:08:12,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28930 states, 24078 states have (on average 1.621978569648642) internal successors, (39054), 24085 states have internal predecessors, (39054), 4823 states have call successors, (4823), 24 states have call predecessors, (4823), 28 states have return successors, (5436), 4822 states have call predecessors, (5436), 4822 states have call successors, (5436) [2023-12-21 10:08:12,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28930 states to 28930 states and 49313 transitions. [2023-12-21 10:08:12,924 INFO L78 Accepts]: Start accepts. Automaton has 28930 states and 49313 transitions. Word has length 121 [2023-12-21 10:08:12,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:08:12,925 INFO L495 AbstractCegarLoop]: Abstraction has 28930 states and 49313 transitions. [2023-12-21 10:08:12,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:08:12,925 INFO L276 IsEmpty]: Start isEmpty. Operand 28930 states and 49313 transitions. [2023-12-21 10:08:12,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-21 10:08:12,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:08:12,957 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:08:12,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-21 10:08:12,957 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:08:12,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:08:12,958 INFO L85 PathProgramCache]: Analyzing trace with hash 423303229, now seen corresponding path program 1 times [2023-12-21 10:08:12,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:08:12,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414512157] [2023-12-21 10:08:12,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:08:12,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:08:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:13,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:08:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:13,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:08:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:13,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:08:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:13,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:08:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:13,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:08:13,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:13,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:08:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:13,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-21 10:08:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:13,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-21 10:08:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:13,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-21 10:08:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:13,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-21 10:08:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:13,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-21 10:08:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:13,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-21 10:08:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:13,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-21 10:08:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:13,059 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:08:13,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:08:13,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414512157] [2023-12-21 10:08:13,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414512157] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:08:13,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:08:13,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:08:13,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59236971] [2023-12-21 10:08:13,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:08:13,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:08:13,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:08:13,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:08:13,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:08:13,062 INFO L87 Difference]: Start difference. First operand 28930 states and 49313 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:08:15,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:08:15,844 INFO L93 Difference]: Finished difference Result 78904 states and 136711 transitions. [2023-12-21 10:08:15,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:08:15,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2023-12-21 10:08:15,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:08:16,056 INFO L225 Difference]: With dead ends: 78904 [2023-12-21 10:08:16,056 INFO L226 Difference]: Without dead ends: 53002 [2023-12-21 10:08:16,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 10:08:16,137 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1315 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1626 mSolverCounterSat, 523 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1330 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 2149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 523 IncrementalHoareTripleChecker+Valid, 1626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 10:08:16,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1330 Valid, 739 Invalid, 2149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [523 Valid, 1626 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 10:08:16,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53002 states. [2023-12-21 10:08:18,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53002 to 52818. [2023-12-21 10:08:18,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52818 states, 44251 states have (on average 1.617228989175386) internal successors, (71564), 44258 states have internal predecessors, (71564), 8538 states have call successors, (8538), 24 states have call predecessors, (8538), 28 states have return successors, (9683), 8537 states have call predecessors, (9683), 8537 states have call successors, (9683) [2023-12-21 10:08:18,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52818 states to 52818 states and 89785 transitions. [2023-12-21 10:08:18,762 INFO L78 Accepts]: Start accepts. Automaton has 52818 states and 89785 transitions. Word has length 122 [2023-12-21 10:08:18,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:08:18,762 INFO L495 AbstractCegarLoop]: Abstraction has 52818 states and 89785 transitions. [2023-12-21 10:08:18,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:08:18,763 INFO L276 IsEmpty]: Start isEmpty. Operand 52818 states and 89785 transitions. [2023-12-21 10:08:18,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-21 10:08:18,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:08:18,811 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:08:18,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-21 10:08:18,811 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:08:18,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:08:18,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1320305897, now seen corresponding path program 1 times [2023-12-21 10:08:18,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:08:18,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45475910] [2023-12-21 10:08:18,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:08:18,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:08:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:18,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:08:18,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:18,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:08:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:18,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:08:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:18,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:08:18,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:18,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:08:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:18,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:08:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:18,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-21 10:08:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:18,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-21 10:08:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:18,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-21 10:08:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:18,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-21 10:08:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:18,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-21 10:08:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:18,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-21 10:08:18,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:18,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-21 10:08:18,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:18,910 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:08:18,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:08:18,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45475910] [2023-12-21 10:08:18,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45475910] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:08:18,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:08:18,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-21 10:08:18,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732907231] [2023-12-21 10:08:18,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:08:18,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-21 10:08:18,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:08:18,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-21 10:08:18,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-21 10:08:18,912 INFO L87 Difference]: Start difference. First operand 52818 states and 89785 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:08:22,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:08:22,364 INFO L93 Difference]: Finished difference Result 98679 states and 171416 transitions. [2023-12-21 10:08:22,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-21 10:08:22,365 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2023-12-21 10:08:22,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:08:22,895 INFO L225 Difference]: With dead ends: 98679 [2023-12-21 10:08:22,896 INFO L226 Difference]: Without dead ends: 98474 [2023-12-21 10:08:22,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 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 10:08:22,941 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1436 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 565 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1451 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 2043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 565 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-21 10:08:22,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1451 Valid, 739 Invalid, 2043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [565 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-21 10:08:23,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98474 states. [2023-12-21 10:08:25,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98474 to 98290. [2023-12-21 10:08:25,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98290 states, 82924 states have (on average 1.6110293762963677) internal successors, (133593), 82931 states have internal predecessors, (133593), 15337 states have call successors, (15337), 24 states have call predecessors, (15337), 28 states have return successors, (17528), 15336 states have call predecessors, (17528), 15336 states have call successors, (17528) [2023-12-21 10:08:26,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98290 states to 98290 states and 166458 transitions. [2023-12-21 10:08:26,308 INFO L78 Accepts]: Start accepts. Automaton has 98290 states and 166458 transitions. Word has length 123 [2023-12-21 10:08:26,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:08:26,309 INFO L495 AbstractCegarLoop]: Abstraction has 98290 states and 166458 transitions. [2023-12-21 10:08:26,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-21 10:08:26,309 INFO L276 IsEmpty]: Start isEmpty. Operand 98290 states and 166458 transitions. [2023-12-21 10:08:26,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-21 10:08:26,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:08:26,353 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:08:26,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-21 10:08:26,353 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:08:26,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:08:26,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1025427102, now seen corresponding path program 1 times [2023-12-21 10:08:26,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:08:26,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320930982] [2023-12-21 10:08:26,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:08:26,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:08:26,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:27,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:08:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:27,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:08:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:27,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:08:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:27,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:08:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:27,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:08:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:27,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:08:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:27,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 10:08:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:27,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 10:08:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:27,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 10:08:27,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:27,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 10:08:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:27,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 10:08:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:27,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-21 10:08:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:27,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-21 10:08:27,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:27,192 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:08:27,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:08:27,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320930982] [2023-12-21 10:08:27,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320930982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:08:27,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:08:27,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-21 10:08:27,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512775559] [2023-12-21 10:08:27,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:08:27,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-21 10:08:27,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:08:27,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-21 10:08:27,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2023-12-21 10:08:27,195 INFO L87 Difference]: Start difference. First operand 98290 states and 166458 transitions. Second operand has 18 states, 16 states have (on average 5.1875) internal successors, (83), 12 states have internal predecessors, (83), 6 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-12-21 10:08:38,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:08:38,359 INFO L93 Difference]: Finished difference Result 196834 states and 345277 transitions. [2023-12-21 10:08:38,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2023-12-21 10:08:38,360 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 5.1875) internal successors, (83), 12 states have internal predecessors, (83), 6 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 124 [2023-12-21 10:08:38,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:08:39,506 INFO L225 Difference]: With dead ends: 196834 [2023-12-21 10:08:39,507 INFO L226 Difference]: Without dead ends: 196634 [2023-12-21 10:08:39,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1655 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=922, Invalid=4334, Unknown=0, NotChecked=0, Total=5256 [2023-12-21 10:08:39,580 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 5389 mSDsluCounter, 2166 mSDsCounter, 0 mSdLazyCounter, 8939 mSolverCounterSat, 2144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5401 SdHoareTripleChecker+Valid, 2383 SdHoareTripleChecker+Invalid, 11083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2144 IncrementalHoareTripleChecker+Valid, 8939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-21 10:08:39,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5401 Valid, 2383 Invalid, 11083 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2144 Valid, 8939 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-21 10:08:39,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196634 states. [2023-12-21 10:08:46,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196634 to 195804. [2023-12-21 10:08:46,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195804 states, 165238 states have (on average 1.6118023699149107) internal successors, (266331), 165143 states have internal predecessors, (266331), 30491 states have call successors, (30491), 65 states have call predecessors, (30491), 74 states have return successors, (38155), 30601 states have call predecessors, (38155), 30488 states have call successors, (38155) [2023-12-21 10:08:47,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195804 states to 195804 states and 334977 transitions. [2023-12-21 10:08:47,717 INFO L78 Accepts]: Start accepts. Automaton has 195804 states and 334977 transitions. Word has length 124 [2023-12-21 10:08:47,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:08:47,718 INFO L495 AbstractCegarLoop]: Abstraction has 195804 states and 334977 transitions. [2023-12-21 10:08:47,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 5.1875) internal successors, (83), 12 states have internal predecessors, (83), 6 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-12-21 10:08:47,718 INFO L276 IsEmpty]: Start isEmpty. Operand 195804 states and 334977 transitions. [2023-12-21 10:08:47,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-21 10:08:47,815 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:08:47,815 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:08:47,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-21 10:08:47,815 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:08:47,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:08:47,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1396143116, now seen corresponding path program 1 times [2023-12-21 10:08:47,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:08:47,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978977686] [2023-12-21 10:08:47,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:08:47,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:08:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:47,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:08:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:47,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:08:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:47,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:08:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:47,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:08:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:47,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:08:47,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:47,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:08:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:48,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 10:08:48,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:48,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 10:08:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:48,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 10:08:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:48,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 10:08:48,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:48,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 10:08:48,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:48,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 10:08:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:48,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-21 10:08:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:08:48,267 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:08:48,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:08:48,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978977686] [2023-12-21 10:08:48,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978977686] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:08:48,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:08:48,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-21 10:08:48,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755938686] [2023-12-21 10:08:48,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:08:48,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-21 10:08:48,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:08:48,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-21 10:08:48,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2023-12-21 10:08:48,269 INFO L87 Difference]: Start difference. First operand 195804 states and 334977 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 8 states have internal predecessors, (84), 5 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-12-21 10:08:56,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:08:56,410 INFO L93 Difference]: Finished difference Result 197726 states and 344504 transitions. [2023-12-21 10:08:56,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-21 10:08:56,411 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 8 states have internal predecessors, (84), 5 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 125 [2023-12-21 10:08:56,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:08:57,419 INFO L225 Difference]: With dead ends: 197726 [2023-12-21 10:08:57,419 INFO L226 Difference]: Without dead ends: 196402 [2023-12-21 10:08:57,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=286, Invalid=974, Unknown=0, NotChecked=0, Total=1260 [2023-12-21 10:08:57,492 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 2932 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 5185 mSolverCounterSat, 1117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2947 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 6302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1117 IncrementalHoareTripleChecker+Valid, 5185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-21 10:08:57,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2947 Valid, 1484 Invalid, 6302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1117 Valid, 5185 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-21 10:08:57,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196402 states. [2023-12-21 10:09:04,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196402 to 195895. [2023-12-21 10:09:04,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195895 states, 165304 states have (on average 1.6117214344480473) internal successors, (266424), 165214 states have internal predecessors, (266424), 30513 states have call successors, (30513), 68 states have call predecessors, (30513), 77 states have return successors, (38186), 30621 states have call predecessors, (38186), 30510 states have call successors, (38186) [2023-12-21 10:09:05,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195895 states to 195895 states and 335123 transitions. [2023-12-21 10:09:05,572 INFO L78 Accepts]: Start accepts. Automaton has 195895 states and 335123 transitions. Word has length 125 [2023-12-21 10:09:05,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-21 10:09:05,573 INFO L495 AbstractCegarLoop]: Abstraction has 195895 states and 335123 transitions. [2023-12-21 10:09:05,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 8 states have internal predecessors, (84), 5 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-12-21 10:09:05,573 INFO L276 IsEmpty]: Start isEmpty. Operand 195895 states and 335123 transitions. [2023-12-21 10:09:05,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-21 10:09:05,655 INFO L187 NwaCegarLoop]: Found error trace [2023-12-21 10:09:05,656 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-21 10:09:05,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-21 10:09:05,656 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-21 10:09:05,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-21 10:09:05,656 INFO L85 PathProgramCache]: Analyzing trace with hash 2079030787, now seen corresponding path program 1 times [2023-12-21 10:09:05,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-21 10:09:05,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053069751] [2023-12-21 10:09:05,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-21 10:09:05,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-21 10:09:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:09:05,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-21 10:09:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:09:05,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-21 10:09:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:09:05,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-21 10:09:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:09:05,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-21 10:09:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:09:05,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-21 10:09:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:09:05,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-21 10:09:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:09:05,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-21 10:09:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:09:05,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-21 10:09:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:09:05,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-21 10:09:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:09:05,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-21 10:09:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:09:05,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-21 10:09:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:09:05,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-21 10:09:05,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:09:05,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-21 10:09:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-21 10:09:06,001 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-21 10:09:06,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-21 10:09:06,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053069751] [2023-12-21 10:09:06,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053069751] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-21 10:09:06,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-21 10:09:06,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-21 10:09:06,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335940624] [2023-12-21 10:09:06,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-21 10:09:06,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-21 10:09:06,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-21 10:09:06,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-21 10:09:06,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2023-12-21 10:09:06,003 INFO L87 Difference]: Start difference. First operand 195895 states and 335123 transitions. Second operand has 18 states, 16 states have (on average 5.25) internal successors, (84), 12 states have internal predecessors, (84), 6 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-12-21 10:09:22,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-21 10:09:22,562 INFO L93 Difference]: Finished difference Result 390799 states and 692327 transitions. [2023-12-21 10:09:22,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2023-12-21 10:09:22,562 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 5.25) internal successors, (84), 12 states have internal predecessors, (84), 6 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 125 [2023-12-21 10:09:22,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-21 10:09:24,538 INFO L225 Difference]: With dead ends: 390799 [2023-12-21 10:09:24,538 INFO L226 Difference]: Without dead ends: 390219 [2023-12-21 10:09:24,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1549 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=961, Invalid=4441, Unknown=0, NotChecked=0, Total=5402 [2023-12-21 10:09:24,688 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 4834 mSDsluCounter, 1825 mSDsCounter, 0 mSdLazyCounter, 9499 mSolverCounterSat, 1922 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4834 SdHoareTripleChecker+Valid, 1978 SdHoareTripleChecker+Invalid, 11421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1922 IncrementalHoareTripleChecker+Valid, 9499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-21 10:09:24,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4834 Valid, 1978 Invalid, 11421 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1922 Valid, 9499 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-21 10:09:24,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390219 states.