/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 05:35:58,678 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 05:35:58,742 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 05:35:58,745 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 05:35:58,746 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 05:35:58,768 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 05:35:58,769 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 05:35:58,769 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 05:35:58,770 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 05:35:58,773 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 05:35:58,773 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 05:35:58,773 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 05:35:58,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 05:35:58,774 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 05:35:58,775 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 05:35:58,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 05:35:58,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 05:35:58,775 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 05:35:58,775 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 05:35:58,775 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 05:35:58,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 05:35:58,776 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 05:35:58,776 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 05:35:58,776 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 05:35:58,776 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 05:35:58,776 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 05:35:58,776 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 05:35:58,777 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 05:35:58,777 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 05:35:58,777 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 05:35:58,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 05:35:58,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 05:35:58,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:35:58,778 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 05:35:58,778 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 05:35:58,778 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 05:35:58,779 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 05:35:58,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 05:35:58,779 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 05:35:58,779 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 05:35:58,779 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 05:35:58,779 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 05:35:58,779 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 05:35:58,779 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 05:35:58,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 05:35:58,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 05:35:58,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 05:35:58,975 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 05:35:58,975 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 05:35:58,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product28.cil.c [2023-12-16 05:36:00,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 05:36:00,288 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 05:36:00,288 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product28.cil.c [2023-12-16 05:36:00,313 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/322ba6e36/2f0fa971806f4594899a809ca64f6eaf/FLAG2742e2071 [2023-12-16 05:36:00,327 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/322ba6e36/2f0fa971806f4594899a809ca64f6eaf [2023-12-16 05:36:00,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 05:36:00,329 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 05:36:00,332 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 05:36:00,333 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 05:36:00,336 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 05:36:00,336 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:36:00" (1/1) ... [2023-12-16 05:36:00,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fefb3c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:00, skipping insertion in model container [2023-12-16 05:36:00,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:36:00" (1/1) ... [2023-12-16 05:36:00,387 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 05:36:00,564 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product28.cil.c[6522,6535] [2023-12-16 05:36:00,778 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:36:00,804 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 05:36:00,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2023-12-16 05:36:00,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [208] [2023-12-16 05:36:00,816 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [270] [2023-12-16 05:36:00,816 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [279] [2023-12-16 05:36:00,816 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [645] [2023-12-16 05:36:00,816 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1724] [2023-12-16 05:36:00,816 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2007] [2023-12-16 05:36:00,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2409] [2023-12-16 05:36:00,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2622] [2023-12-16 05:36:00,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2639] [2023-12-16 05:36:00,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2674] [2023-12-16 05:36:00,829 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product28.cil.c[6522,6535] [2023-12-16 05:36:00,883 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:36:00,928 INFO L206 MainTranslator]: Completed translation [2023-12-16 05:36:00,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:00 WrapperNode [2023-12-16 05:36:00,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 05:36:00,953 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 05:36:00,953 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 05:36:00,953 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 05:36:00,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:00" (1/1) ... [2023-12-16 05:36:00,978 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:00" (1/1) ... [2023-12-16 05:36:01,009 INFO L138 Inliner]: procedures = 129, calls = 203, calls flagged for inlining = 55, calls inlined = 45, statements flattened = 875 [2023-12-16 05:36:01,010 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 05:36:01,010 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 05:36:01,011 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 05:36:01,011 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 05:36:01,035 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:00" (1/1) ... [2023-12-16 05:36:01,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:00" (1/1) ... [2023-12-16 05:36:01,048 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:00" (1/1) ... [2023-12-16 05:36:01,072 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-12-16 05:36:01,072 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:00" (1/1) ... [2023-12-16 05:36:01,072 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:00" (1/1) ... [2023-12-16 05:36:01,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:00" (1/1) ... [2023-12-16 05:36:01,099 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:00" (1/1) ... [2023-12-16 05:36:01,102 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:00" (1/1) ... [2023-12-16 05:36:01,104 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:00" (1/1) ... [2023-12-16 05:36:01,109 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 05:36:01,110 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 05:36:01,110 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 05:36:01,110 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 05:36:01,110 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:00" (1/1) ... [2023-12-16 05:36:01,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:36:01,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:01,159 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 05:36:01,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 05:36:01,188 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-16 05:36:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-16 05:36:01,189 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-16 05:36:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-16 05:36:01,189 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-16 05:36:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-16 05:36:01,189 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-16 05:36:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-16 05:36:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-16 05:36:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-16 05:36:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-16 05:36:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-16 05:36:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-16 05:36:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-16 05:36:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-16 05:36:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-16 05:36:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-16 05:36:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-16 05:36:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-16 05:36:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-16 05:36:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-16 05:36:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-16 05:36:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-16 05:36:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-16 05:36:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 05:36:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-16 05:36:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-16 05:36:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-16 05:36:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-16 05:36:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-16 05:36:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-16 05:36:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-16 05:36:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-16 05:36:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-16 05:36:01,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-16 05:36:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-16 05:36:01,194 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-16 05:36:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-16 05:36:01,194 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-16 05:36:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-16 05:36:01,194 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-16 05:36:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-16 05:36:01,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-16 05:36:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-16 05:36:01,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-16 05:36:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 05:36:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 05:36:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-16 05:36:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-16 05:36:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-16 05:36:01,195 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-16 05:36:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 05:36:01,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 05:36:01,378 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 05:36:01,380 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 05:36:01,971 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 05:36:02,023 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 05:36:02,023 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 05:36:02,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:36:02 BoogieIcfgContainer [2023-12-16 05:36:02,024 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 05:36:02,025 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 05:36:02,025 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 05:36:02,027 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 05:36:02,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:36:00" (1/3) ... [2023-12-16 05:36:02,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5615ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:36:02, skipping insertion in model container [2023-12-16 05:36:02,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:36:00" (2/3) ... [2023-12-16 05:36:02,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5615ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:36:02, skipping insertion in model container [2023-12-16 05:36:02,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:36:02" (3/3) ... [2023-12-16 05:36:02,029 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product28.cil.c [2023-12-16 05:36:02,041 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 05:36:02,041 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 05:36:02,075 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 05:36:02,079 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;@385d8e45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 05:36:02,079 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 05:36:02,083 INFO L276 IsEmpty]: Start isEmpty. Operand has 313 states, 233 states have (on average 1.5708154506437768) internal successors, (366), 239 states have internal predecessors, (366), 55 states have call successors, (55), 23 states have call predecessors, (55), 23 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2023-12-16 05:36:02,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-16 05:36:02,097 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:02,097 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:02,098 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:02,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:02,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1777957587, now seen corresponding path program 1 times [2023-12-16 05:36:02,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:02,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846493104] [2023-12-16 05:36:02,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:02,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:36:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:36:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:36:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 05:36:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 05:36:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-16 05:36:02,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:36:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 05:36:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 05:36:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 05:36:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 05:36:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 05:36:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 05:36:02,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,670 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-16 05:36:02,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:02,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846493104] [2023-12-16 05:36:02,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846493104] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:36:02,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106685040] [2023-12-16 05:36:02,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:02,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:02,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:02,675 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:36:02,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 05:36:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:02,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 1099 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 05:36:02,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:36:02,962 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-16 05:36:02,962 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:36:02,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106685040] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:02,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:36:02,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2023-12-16 05:36:02,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806215489] [2023-12-16 05:36:02,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:02,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 05:36:02,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:02,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 05:36:02,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 05:36:02,993 INFO L87 Difference]: Start difference. First operand has 313 states, 233 states have (on average 1.5708154506437768) internal successors, (366), 239 states have internal predecessors, (366), 55 states have call successors, (55), 23 states have call predecessors, (55), 23 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:03,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:03,088 INFO L93 Difference]: Finished difference Result 484 states and 722 transitions. [2023-12-16 05:36:03,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 05:36:03,090 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 120 [2023-12-16 05:36:03,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:03,098 INFO L225 Difference]: With dead ends: 484 [2023-12-16 05:36:03,099 INFO L226 Difference]: Without dead ends: 309 [2023-12-16 05:36:03,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 05:36:03,104 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:03,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 459 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:36:03,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2023-12-16 05:36:03,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2023-12-16 05:36:03,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 231 states have (on average 1.5541125541125542) internal successors, (359), 235 states have internal predecessors, (359), 55 states have call successors, (55), 23 states have call predecessors, (55), 22 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-16 05:36:03,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 466 transitions. [2023-12-16 05:36:03,165 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 466 transitions. Word has length 120 [2023-12-16 05:36:03,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:03,166 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 466 transitions. [2023-12-16 05:36:03,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:03,166 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 466 transitions. [2023-12-16 05:36:03,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 05:36:03,170 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:03,170 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:03,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 05:36:03,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-16 05:36:03,379 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:03,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:03,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1401924512, now seen corresponding path program 1 times [2023-12-16 05:36:03,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:03,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109484960] [2023-12-16 05:36:03,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:03,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:03,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:03,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:03,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:03,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:03,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:36:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:03,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:36:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:03,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:36:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:03,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 05:36:03,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:03,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 05:36:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:03,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-16 05:36:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:03,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 05:36:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:03,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-16 05:36:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:03,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 05:36:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:03,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:36:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:03,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-16 05:36:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:03,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-16 05:36:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:03,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-16 05:36:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:03,689 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-16 05:36:03,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:03,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109484960] [2023-12-16 05:36:03,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109484960] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:36:03,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781100300] [2023-12-16 05:36:03,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:03,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:03,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:03,713 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:36:03,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 05:36:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:03,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 1100 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 05:36:03,996 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:36:04,022 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-16 05:36:04,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:36:04,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781100300] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:04,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:36:04,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-12-16 05:36:04,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700602677] [2023-12-16 05:36:04,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:04,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 05:36:04,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:04,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 05:36:04,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:36:04,024 INFO L87 Difference]: Start difference. First operand 309 states and 466 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:04,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:04,080 INFO L93 Difference]: Finished difference Result 479 states and 705 transitions. [2023-12-16 05:36:04,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 05:36:04,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 121 [2023-12-16 05:36:04,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:04,086 INFO L225 Difference]: With dead ends: 479 [2023-12-16 05:36:04,086 INFO L226 Difference]: Without dead ends: 311 [2023-12-16 05:36:04,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:36:04,092 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 0 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 911 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 [2023-12-16 05:36:04,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 911 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:36:04,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-12-16 05:36:04,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2023-12-16 05:36:04,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 233 states have (on average 1.5493562231759657) internal successors, (361), 237 states have internal predecessors, (361), 55 states have call successors, (55), 23 states have call predecessors, (55), 22 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-16 05:36:04,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 468 transitions. [2023-12-16 05:36:04,119 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 468 transitions. Word has length 121 [2023-12-16 05:36:04,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:04,119 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 468 transitions. [2023-12-16 05:36:04,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:04,120 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 468 transitions. [2023-12-16 05:36:04,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-16 05:36:04,121 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:04,121 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:04,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 05:36:04,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-16 05:36:04,332 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:04,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:04,332 INFO L85 PathProgramCache]: Analyzing trace with hash 982329180, now seen corresponding path program 1 times [2023-12-16 05:36:04,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:04,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428242113] [2023-12-16 05:36:04,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:04,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:36:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:36:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:36:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-16 05:36:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-16 05:36:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:36:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 05:36:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 05:36:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 05:36:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 05:36:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 05:36:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 05:36:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 05:36:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,540 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 05:36:04,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:04,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428242113] [2023-12-16 05:36:04,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428242113] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:36:04,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533974281] [2023-12-16 05:36:04,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:04,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:04,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:04,562 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:36:04,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 05:36:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:04,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 1112 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:36:04,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:36:04,849 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-16 05:36:04,850 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:36:04,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533974281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:04,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:36:04,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-12-16 05:36:04,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863518512] [2023-12-16 05:36:04,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:04,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 05:36:04,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:04,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 05:36:04,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:36:04,852 INFO L87 Difference]: Start difference. First operand 311 states and 468 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:04,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:04,935 INFO L93 Difference]: Finished difference Result 648 states and 988 transitions. [2023-12-16 05:36:04,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 05:36:04,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 126 [2023-12-16 05:36:04,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:04,952 INFO L225 Difference]: With dead ends: 648 [2023-12-16 05:36:04,952 INFO L226 Difference]: Without dead ends: 359 [2023-12-16 05:36:04,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:36:04,954 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 95 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:04,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 878 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:36:04,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-12-16 05:36:04,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 354. [2023-12-16 05:36:04,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 265 states have (on average 1.5622641509433963) internal successors, (414), 269 states have internal predecessors, (414), 66 states have call successors, (66), 23 states have call predecessors, (66), 22 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2023-12-16 05:36:04,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 543 transitions. [2023-12-16 05:36:04,967 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 543 transitions. Word has length 126 [2023-12-16 05:36:04,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:04,967 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 543 transitions. [2023-12-16 05:36:04,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:04,967 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 543 transitions. [2023-12-16 05:36:04,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-16 05:36:04,969 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:04,969 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:04,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-16 05:36:05,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:05,193 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:05,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:05,194 INFO L85 PathProgramCache]: Analyzing trace with hash -267226603, now seen corresponding path program 1 times [2023-12-16 05:36:05,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:05,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668937269] [2023-12-16 05:36:05,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:05,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:05,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:05,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:05,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:05,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:36:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:05,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:36:05,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:05,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:36:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:05,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 05:36:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:05,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-16 05:36:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:05,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 05:36:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:05,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 05:36:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:05,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 05:36:05,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:05,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:36:05,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:05,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-16 05:36:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:05,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-16 05:36:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:05,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-16 05:36:05,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:05,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 05:36:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:05,556 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 05:36:05,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:05,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668937269] [2023-12-16 05:36:05,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668937269] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:36:05,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129041150] [2023-12-16 05:36:05,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:05,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:05,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:05,558 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:36:05,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 05:36:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:05,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 1117 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 05:36:05,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:36:05,973 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-16 05:36:05,973 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:36:05,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129041150] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:05,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:36:05,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-12-16 05:36:05,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598051453] [2023-12-16 05:36:05,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:05,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:36:05,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:05,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:36:05,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-16 05:36:05,975 INFO L87 Difference]: Start difference. First operand 354 states and 543 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-16 05:36:06,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:06,083 INFO L93 Difference]: Finished difference Result 703 states and 1080 transitions. [2023-12-16 05:36:06,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:36:06,084 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 127 [2023-12-16 05:36:06,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:06,086 INFO L225 Difference]: With dead ends: 703 [2023-12-16 05:36:06,086 INFO L226 Difference]: Without dead ends: 356 [2023-12-16 05:36:06,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:36:06,087 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 8 mSDsluCounter, 1330 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1777 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:06,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1777 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:36:06,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2023-12-16 05:36:06,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2023-12-16 05:36:06,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 266 states have (on average 1.5601503759398496) internal successors, (415), 271 states have internal predecessors, (415), 66 states have call successors, (66), 23 states have call predecessors, (66), 23 states have return successors, (65), 63 states have call predecessors, (65), 63 states have call successors, (65) [2023-12-16 05:36:06,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 546 transitions. [2023-12-16 05:36:06,099 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 546 transitions. Word has length 127 [2023-12-16 05:36:06,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:06,100 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 546 transitions. [2023-12-16 05:36:06,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-16 05:36:06,100 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 546 transitions. [2023-12-16 05:36:06,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-16 05:36:06,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:06,102 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:06,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 05:36:06,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:06,309 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:06,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:06,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1516139635, now seen corresponding path program 1 times [2023-12-16 05:36:06,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:06,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207723497] [2023-12-16 05:36:06,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:06,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-16 05:36:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-16 05:36:06,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 05:36:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-16 05:36:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 05:36:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 05:36:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 05:36:06,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 05:36:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-16 05:36:06,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-16 05:36:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-16 05:36:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 05:36:06,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,515 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 05:36:06,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:06,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207723497] [2023-12-16 05:36:06,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207723497] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:36:06,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884776213] [2023-12-16 05:36:06,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:06,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:06,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:06,537 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:36:06,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 05:36:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:06,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 05:36:06,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:36:06,874 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-16 05:36:06,874 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:36:06,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884776213] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:06,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:36:06,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2023-12-16 05:36:06,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849969107] [2023-12-16 05:36:06,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:06,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:36:06,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:06,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:36:06,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-12-16 05:36:06,876 INFO L87 Difference]: Start difference. First operand 356 states and 546 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-16 05:36:06,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:06,945 INFO L93 Difference]: Finished difference Result 705 states and 1085 transitions. [2023-12-16 05:36:06,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:36:06,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 128 [2023-12-16 05:36:06,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:06,948 INFO L225 Difference]: With dead ends: 705 [2023-12-16 05:36:06,948 INFO L226 Difference]: Without dead ends: 358 [2023-12-16 05:36:06,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-12-16 05:36:06,951 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 8 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:06,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1763 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:36:06,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-12-16 05:36:06,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2023-12-16 05:36:06,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 267 states have (on average 1.5580524344569289) internal successors, (416), 273 states have internal predecessors, (416), 66 states have call successors, (66), 23 states have call predecessors, (66), 24 states have return successors, (70), 63 states have call predecessors, (70), 63 states have call successors, (70) [2023-12-16 05:36:06,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 552 transitions. [2023-12-16 05:36:06,972 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 552 transitions. Word has length 128 [2023-12-16 05:36:06,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:06,973 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 552 transitions. [2023-12-16 05:36:06,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-16 05:36:06,973 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 552 transitions. [2023-12-16 05:36:06,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-16 05:36:06,976 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:06,976 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:06,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 05:36:07,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:07,183 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:07,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:07,184 INFO L85 PathProgramCache]: Analyzing trace with hash -649577786, now seen corresponding path program 1 times [2023-12-16 05:36:07,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:07,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213739362] [2023-12-16 05:36:07,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:07,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 05:36:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 05:36:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-16 05:36:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 05:36:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 05:36:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 05:36:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 05:36:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 05:36:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 05:36:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-16 05:36:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-16 05:36:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:07,343 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 05:36:07,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:07,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213739362] [2023-12-16 05:36:07,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213739362] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:07,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:07,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 05:36:07,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55009246] [2023-12-16 05:36:07,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:07,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 05:36:07,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:07,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 05:36:07,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 05:36:07,345 INFO L87 Difference]: Start difference. First operand 358 states and 552 transitions. Second operand has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-16 05:36:08,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:08,509 INFO L93 Difference]: Finished difference Result 766 states and 1190 transitions. [2023-12-16 05:36:08,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:36:08,510 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 129 [2023-12-16 05:36:08,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:08,512 INFO L225 Difference]: With dead ends: 766 [2023-12-16 05:36:08,512 INFO L226 Difference]: Without dead ends: 427 [2023-12-16 05:36:08,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-12-16 05:36:08,516 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 758 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1985 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 2238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 1985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:08,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 812 Invalid, 2238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 1985 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 05:36:08,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2023-12-16 05:36:08,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 358. [2023-12-16 05:36:08,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 267 states have (on average 1.5580524344569289) internal successors, (416), 273 states have internal predecessors, (416), 66 states have call successors, (66), 23 states have call predecessors, (66), 24 states have return successors, (69), 63 states have call predecessors, (69), 63 states have call successors, (69) [2023-12-16 05:36:08,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 551 transitions. [2023-12-16 05:36:08,540 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 551 transitions. Word has length 129 [2023-12-16 05:36:08,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:08,541 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 551 transitions. [2023-12-16 05:36:08,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-16 05:36:08,541 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 551 transitions. [2023-12-16 05:36:08,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-16 05:36:08,542 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:08,542 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:08,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 05:36:08,543 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:08,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:08,543 INFO L85 PathProgramCache]: Analyzing trace with hash 930882946, now seen corresponding path program 2 times [2023-12-16 05:36:08,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:08,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618687778] [2023-12-16 05:36:08,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:08,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:08,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:08,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:08,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:08,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:08,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:08,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:08,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 05:36:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:08,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 05:36:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:08,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 05:36:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:08,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 05:36:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:08,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 05:36:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:08,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 05:36:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:08,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 05:36:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:08,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-16 05:36:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:08,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-16 05:36:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:08,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-16 05:36:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:08,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-16 05:36:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:08,722 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 05:36:08,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:08,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618687778] [2023-12-16 05:36:08,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618687778] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:08,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:08,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 05:36:08,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299245160] [2023-12-16 05:36:08,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:08,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 05:36:08,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:08,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 05:36:08,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 05:36:08,724 INFO L87 Difference]: Start difference. First operand 358 states and 551 transitions. Second operand has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-16 05:36:09,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:09,840 INFO L93 Difference]: Finished difference Result 768 states and 1193 transitions. [2023-12-16 05:36:09,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:36:09,841 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 130 [2023-12-16 05:36:09,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:09,844 INFO L225 Difference]: With dead ends: 768 [2023-12-16 05:36:09,844 INFO L226 Difference]: Without dead ends: 429 [2023-12-16 05:36:09,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-12-16 05:36:09,846 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 754 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1985 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 2238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 1985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:09,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 812 Invalid, 2238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 1985 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 05:36:09,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2023-12-16 05:36:09,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 360. [2023-12-16 05:36:09,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 268 states have (on average 1.5559701492537314) internal successors, (417), 275 states have internal predecessors, (417), 66 states have call successors, (66), 23 states have call predecessors, (66), 25 states have return successors, (71), 63 states have call predecessors, (71), 63 states have call successors, (71) [2023-12-16 05:36:09,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 554 transitions. [2023-12-16 05:36:09,866 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 554 transitions. Word has length 130 [2023-12-16 05:36:09,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:09,867 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 554 transitions. [2023-12-16 05:36:09,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-16 05:36:09,867 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 554 transitions. [2023-12-16 05:36:09,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 05:36:09,869 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:09,869 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:09,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 05:36:09,870 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:09,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:09,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1994201229, now seen corresponding path program 1 times [2023-12-16 05:36:09,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:09,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358297547] [2023-12-16 05:36:09,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:09,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:09,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:09,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:09,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:09,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:09,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:09,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:10,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:10,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 05:36:10,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:10,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-16 05:36:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:10,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:36:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:10,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 05:36:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:10,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 05:36:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:10,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-16 05:36:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:10,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-16 05:36:10,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:10,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-16 05:36:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:10,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-16 05:36:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:10,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-16 05:36:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:10,035 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 05:36:10,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:10,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358297547] [2023-12-16 05:36:10,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358297547] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:10,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:10,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 05:36:10,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118067707] [2023-12-16 05:36:10,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:10,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 05:36:10,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:10,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 05:36:10,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 05:36:10,036 INFO L87 Difference]: Start difference. First operand 360 states and 554 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-16 05:36:11,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:11,026 INFO L93 Difference]: Finished difference Result 768 states and 1192 transitions. [2023-12-16 05:36:11,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 05:36:11,027 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 131 [2023-12-16 05:36:11,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:11,029 INFO L225 Difference]: With dead ends: 768 [2023-12-16 05:36:11,029 INFO L226 Difference]: Without dead ends: 429 [2023-12-16 05:36:11,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-12-16 05:36:11,031 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 756 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1972 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 2227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 1972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:11,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 812 Invalid, 2227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 1972 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 05:36:11,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2023-12-16 05:36:11,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 360. [2023-12-16 05:36:11,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 268 states have (on average 1.5559701492537314) internal successors, (417), 275 states have internal predecessors, (417), 66 states have call successors, (66), 23 states have call predecessors, (66), 25 states have return successors, (71), 63 states have call predecessors, (71), 63 states have call successors, (71) [2023-12-16 05:36:11,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 554 transitions. [2023-12-16 05:36:11,065 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 554 transitions. Word has length 131 [2023-12-16 05:36:11,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:11,065 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 554 transitions. [2023-12-16 05:36:11,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-16 05:36:11,066 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 554 transitions. [2023-12-16 05:36:11,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-16 05:36:11,067 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:11,067 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:11,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 05:36:11,068 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:11,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:11,068 INFO L85 PathProgramCache]: Analyzing trace with hash 963160331, now seen corresponding path program 1 times [2023-12-16 05:36:11,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:11,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69521481] [2023-12-16 05:36:11,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:11,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:11,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:11,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:11,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:11,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:11,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:11,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:11,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 05:36:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:11,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-16 05:36:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:11,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:36:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:11,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 05:36:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:11,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 05:36:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:11,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-16 05:36:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:11,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-16 05:36:11,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:11,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-16 05:36:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:11,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-16 05:36:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:11,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-16 05:36:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:11,294 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 05:36:11,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:11,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69521481] [2023-12-16 05:36:11,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69521481] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:11,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:11,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 05:36:11,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943857748] [2023-12-16 05:36:11,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:11,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 05:36:11,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:11,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 05:36:11,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-16 05:36:11,296 INFO L87 Difference]: Start difference. First operand 360 states and 554 transitions. Second operand has 11 states, 10 states have (on average 7.8) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-16 05:36:12,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:12,704 INFO L93 Difference]: Finished difference Result 766 states and 1187 transitions. [2023-12-16 05:36:12,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 05:36:12,704 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.8) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 131 [2023-12-16 05:36:12,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:12,706 INFO L225 Difference]: With dead ends: 766 [2023-12-16 05:36:12,706 INFO L226 Difference]: Without dead ends: 429 [2023-12-16 05:36:12,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2023-12-16 05:36:12,725 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 763 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 3367 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 3623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 3367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:12,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 1163 Invalid, 3623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 3367 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 05:36:12,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2023-12-16 05:36:12,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 360. [2023-12-16 05:36:12,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 268 states have (on average 1.5559701492537314) internal successors, (417), 275 states have internal predecessors, (417), 66 states have call successors, (66), 23 states have call predecessors, (66), 25 states have return successors, (70), 63 states have call predecessors, (70), 63 states have call successors, (70) [2023-12-16 05:36:12,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 553 transitions. [2023-12-16 05:36:12,745 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 553 transitions. Word has length 131 [2023-12-16 05:36:12,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:12,760 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 553 transitions. [2023-12-16 05:36:12,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.8) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-16 05:36:12,761 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 553 transitions. [2023-12-16 05:36:12,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 05:36:12,783 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:12,783 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:12,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 05:36:12,784 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:12,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:12,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1498752522, now seen corresponding path program 2 times [2023-12-16 05:36:12,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:12,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815574236] [2023-12-16 05:36:12,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:12,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:12,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:13,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:13,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-16 05:36:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:13,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-16 05:36:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:13,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 05:36:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:13,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-16 05:36:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:13,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 05:36:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:13,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 05:36:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:13,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 05:36:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:13,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-16 05:36:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:13,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 05:36:13,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:13,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-16 05:36:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:13,071 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-16 05:36:13,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:13,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815574236] [2023-12-16 05:36:13,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815574236] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:13,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:13,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 05:36:13,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841038507] [2023-12-16 05:36:13,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:13,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 05:36:13,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:13,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 05:36:13,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-12-16 05:36:13,074 INFO L87 Difference]: Start difference. First operand 360 states and 553 transitions. Second operand has 11 states, 10 states have (on average 7.9) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-16 05:36:14,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:14,558 INFO L93 Difference]: Finished difference Result 768 states and 1193 transitions. [2023-12-16 05:36:14,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 05:36:14,560 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.9) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 132 [2023-12-16 05:36:14,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:14,562 INFO L225 Difference]: With dead ends: 768 [2023-12-16 05:36:14,562 INFO L226 Difference]: Without dead ends: 431 [2023-12-16 05:36:14,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2023-12-16 05:36:14,564 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 759 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 3394 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 3648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 3394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:14,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 1163 Invalid, 3648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 3394 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 05:36:14,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-12-16 05:36:14,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 362. [2023-12-16 05:36:14,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 269 states have (on average 1.553903345724907) internal successors, (418), 277 states have internal predecessors, (418), 66 states have call successors, (66), 23 states have call predecessors, (66), 26 states have return successors, (75), 63 states have call predecessors, (75), 63 states have call successors, (75) [2023-12-16 05:36:14,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 559 transitions. [2023-12-16 05:36:14,583 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 559 transitions. Word has length 132 [2023-12-16 05:36:14,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:14,583 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 559 transitions. [2023-12-16 05:36:14,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.9) internal successors, (79), 8 states have internal predecessors, (79), 4 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-16 05:36:14,583 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 559 transitions. [2023-12-16 05:36:14,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-16 05:36:14,585 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:14,585 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:14,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 05:36:14,585 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:14,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:14,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1286531216, now seen corresponding path program 1 times [2023-12-16 05:36:14,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:14,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514294261] [2023-12-16 05:36:14,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:14,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:14,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:14,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:14,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:14,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:14,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:14,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:14,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:14,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:36:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:14,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-16 05:36:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:14,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 05:36:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:14,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 05:36:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:14,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:36:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:14,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-16 05:36:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:14,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-16 05:36:14,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:14,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 05:36:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:14,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 05:36:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:14,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-16 05:36:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:14,710 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:14,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:14,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514294261] [2023-12-16 05:36:14,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514294261] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:36:14,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983039420] [2023-12-16 05:36:14,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:14,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:14,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:14,712 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:36:14,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 05:36:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:14,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 1123 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:36:14,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:36:14,995 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:14,995 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 05:36:15,054 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:15,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983039420] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 05:36:15,055 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 05:36:15,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2023-12-16 05:36:15,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734719447] [2023-12-16 05:36:15,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 05:36:15,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 05:36:15,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:15,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 05:36:15,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:36:15,058 INFO L87 Difference]: Start difference. First operand 362 states and 559 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (37), 5 states have call predecessors, (37), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-16 05:36:15,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:15,994 INFO L93 Difference]: Finished difference Result 909 states and 1478 transitions. [2023-12-16 05:36:15,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 05:36:15,994 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (37), 5 states have call predecessors, (37), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 133 [2023-12-16 05:36:15,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:15,998 INFO L225 Difference]: With dead ends: 909 [2023-12-16 05:36:15,998 INFO L226 Difference]: Without dead ends: 741 [2023-12-16 05:36:15,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-12-16 05:36:16,000 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 1198 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 1625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:16,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 1038 Invalid, 1625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 05:36:16,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2023-12-16 05:36:16,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 657. [2023-12-16 05:36:16,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 500 states have (on average 1.616) internal successors, (808), 508 states have internal predecessors, (808), 130 states have call successors, (130), 23 states have call predecessors, (130), 26 states have return successors, (149), 127 states have call predecessors, (149), 127 states have call successors, (149) [2023-12-16 05:36:16,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 1087 transitions. [2023-12-16 05:36:16,026 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 1087 transitions. Word has length 133 [2023-12-16 05:36:16,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:16,027 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 1087 transitions. [2023-12-16 05:36:16,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 7 states have internal predecessors, (109), 2 states have call successors, (37), 5 states have call predecessors, (37), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-16 05:36:16,027 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 1087 transitions. [2023-12-16 05:36:16,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 05:36:16,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:16,030 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:16,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 05:36:16,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:16,238 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:16,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:16,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1561944653, now seen corresponding path program 1 times [2023-12-16 05:36:16,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:16,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531779027] [2023-12-16 05:36:16,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:16,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:16,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:16,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:16,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:16,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:16,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:16,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:16,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-16 05:36:16,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:16,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:36:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:16,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 05:36:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:16,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 05:36:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:16,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-16 05:36:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:16,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-16 05:36:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:16,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 05:36:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:16,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-16 05:36:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:16,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-16 05:36:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:16,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-16 05:36:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:16,313 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:16,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:16,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531779027] [2023-12-16 05:36:16,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531779027] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:16,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:16,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:36:16,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866826454] [2023-12-16 05:36:16,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:16,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:36:16,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:16,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:36:16,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:36:16,315 INFO L87 Difference]: Start difference. First operand 657 states and 1087 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:17,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:17,188 INFO L93 Difference]: Finished difference Result 1620 states and 2747 transitions. [2023-12-16 05:36:17,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 05:36:17,189 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 139 [2023-12-16 05:36:17,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:17,193 INFO L225 Difference]: With dead ends: 1620 [2023-12-16 05:36:17,193 INFO L226 Difference]: Without dead ends: 1023 [2023-12-16 05:36:17,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:36:17,195 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 841 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:17,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 628 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 05:36:17,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2023-12-16 05:36:17,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 949. [2023-12-16 05:36:17,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 728 states have (on average 1.6277472527472527) internal successors, (1185), 736 states have internal predecessors, (1185), 194 states have call successors, (194), 23 states have call predecessors, (194), 26 states have return successors, (223), 191 states have call predecessors, (223), 191 states have call successors, (223) [2023-12-16 05:36:17,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1602 transitions. [2023-12-16 05:36:17,273 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1602 transitions. Word has length 139 [2023-12-16 05:36:17,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:17,273 INFO L495 AbstractCegarLoop]: Abstraction has 949 states and 1602 transitions. [2023-12-16 05:36:17,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:17,273 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1602 transitions. [2023-12-16 05:36:17,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-16 05:36:17,277 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:17,277 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:17,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 05:36:17,278 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:17,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:17,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1386368287, now seen corresponding path program 1 times [2023-12-16 05:36:17,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:17,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242359017] [2023-12-16 05:36:17,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:17,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:17,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:17,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 05:36:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 05:36:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 05:36:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 05:36:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-16 05:36:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-16 05:36:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-16 05:36:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-16 05:36:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-16 05:36:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-16 05:36:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:17,402 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:17,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:17,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242359017] [2023-12-16 05:36:17,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242359017] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:17,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:17,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:36:17,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752697939] [2023-12-16 05:36:17,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:17,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:36:17,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:17,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:36:17,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:36:17,404 INFO L87 Difference]: Start difference. First operand 949 states and 1602 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:18,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:18,362 INFO L93 Difference]: Finished difference Result 2317 states and 3974 transitions. [2023-12-16 05:36:18,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 05:36:18,362 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 140 [2023-12-16 05:36:18,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:18,372 INFO L225 Difference]: With dead ends: 2317 [2023-12-16 05:36:18,372 INFO L226 Difference]: Without dead ends: 1478 [2023-12-16 05:36:18,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:36:18,375 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 839 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:18,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 574 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 05:36:18,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2023-12-16 05:36:18,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1404. [2023-12-16 05:36:18,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1088 states have (on average 1.635110294117647) internal successors, (1779), 1096 states have internal predecessors, (1779), 289 states have call successors, (289), 23 states have call predecessors, (289), 26 states have return successors, (318), 286 states have call predecessors, (318), 286 states have call successors, (318) [2023-12-16 05:36:18,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 2386 transitions. [2023-12-16 05:36:18,422 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 2386 transitions. Word has length 140 [2023-12-16 05:36:18,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:18,422 INFO L495 AbstractCegarLoop]: Abstraction has 1404 states and 2386 transitions. [2023-12-16 05:36:18,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:18,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 2386 transitions. [2023-12-16 05:36:18,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 05:36:18,429 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:18,429 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:18,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 05:36:18,429 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:18,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:18,429 INFO L85 PathProgramCache]: Analyzing trace with hash 573512623, now seen corresponding path program 1 times [2023-12-16 05:36:18,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:18,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111887526] [2023-12-16 05:36:18,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:18,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:18,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-16 05:36:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 05:36:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 05:36:18,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 05:36:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 05:36:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 05:36:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 05:36:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 05:36:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-16 05:36:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-16 05:36:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:18,502 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:18,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:18,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111887526] [2023-12-16 05:36:18,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111887526] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:18,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:18,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:36:18,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779723019] [2023-12-16 05:36:18,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:18,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:36:18,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:18,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:36:18,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:36:18,504 INFO L87 Difference]: Start difference. First operand 1404 states and 2386 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:19,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:19,505 INFO L93 Difference]: Finished difference Result 3335 states and 5786 transitions. [2023-12-16 05:36:19,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 05:36:19,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 141 [2023-12-16 05:36:19,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:19,516 INFO L225 Difference]: With dead ends: 3335 [2023-12-16 05:36:19,516 INFO L226 Difference]: Without dead ends: 2161 [2023-12-16 05:36:19,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:36:19,522 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 837 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:19,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 569 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 05:36:19,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2023-12-16 05:36:19,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 2087. [2023-12-16 05:36:19,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2087 states, 1648 states have (on average 1.641383495145631) internal successors, (2705), 1656 states have internal predecessors, (2705), 412 states have call successors, (412), 23 states have call predecessors, (412), 26 states have return successors, (457), 409 states have call predecessors, (457), 409 states have call successors, (457) [2023-12-16 05:36:19,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2087 states to 2087 states and 3574 transitions. [2023-12-16 05:36:19,659 INFO L78 Accepts]: Start accepts. Automaton has 2087 states and 3574 transitions. Word has length 141 [2023-12-16 05:36:19,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:19,659 INFO L495 AbstractCegarLoop]: Abstraction has 2087 states and 3574 transitions. [2023-12-16 05:36:19,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:19,660 INFO L276 IsEmpty]: Start isEmpty. Operand 2087 states and 3574 transitions. [2023-12-16 05:36:19,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 05:36:19,669 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:19,669 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:19,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 05:36:19,669 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:19,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:19,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1747100734, now seen corresponding path program 1 times [2023-12-16 05:36:19,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:19,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7327855] [2023-12-16 05:36:19,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:19,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:19,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-16 05:36:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 05:36:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-16 05:36:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 05:36:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-16 05:36:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-16 05:36:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-16 05:36:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 05:36:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-16 05:36:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-16 05:36:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:19,757 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:19,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:19,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7327855] [2023-12-16 05:36:19,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7327855] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:19,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:19,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:36:19,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20479814] [2023-12-16 05:36:19,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:19,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:36:19,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:19,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:36:19,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:36:19,759 INFO L87 Difference]: Start difference. First operand 2087 states and 3574 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:20,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:20,717 INFO L93 Difference]: Finished difference Result 4905 states and 8591 transitions. [2023-12-16 05:36:20,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 05:36:20,717 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 142 [2023-12-16 05:36:20,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:20,731 INFO L225 Difference]: With dead ends: 4905 [2023-12-16 05:36:20,732 INFO L226 Difference]: Without dead ends: 3245 [2023-12-16 05:36:20,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:36:20,738 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 835 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:20,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 569 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 05:36:20,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2023-12-16 05:36:20,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 3171. [2023-12-16 05:36:20,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3171 states, 2553 states have (on average 1.645515080297689) internal successors, (4201), 2561 states have internal predecessors, (4201), 591 states have call successors, (591), 23 states have call predecessors, (591), 26 states have return successors, (662), 588 states have call predecessors, (662), 588 states have call successors, (662) [2023-12-16 05:36:20,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3171 states to 3171 states and 5454 transitions. [2023-12-16 05:36:20,839 INFO L78 Accepts]: Start accepts. Automaton has 3171 states and 5454 transitions. Word has length 142 [2023-12-16 05:36:20,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:20,839 INFO L495 AbstractCegarLoop]: Abstraction has 3171 states and 5454 transitions. [2023-12-16 05:36:20,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:20,839 INFO L276 IsEmpty]: Start isEmpty. Operand 3171 states and 5454 transitions. [2023-12-16 05:36:20,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 05:36:20,850 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:20,851 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:20,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 05:36:20,851 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:20,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:20,851 INFO L85 PathProgramCache]: Analyzing trace with hash 524826667, now seen corresponding path program 1 times [2023-12-16 05:36:20,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:20,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651046164] [2023-12-16 05:36:20,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:20,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-16 05:36:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 05:36:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 05:36:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 05:36:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-16 05:36:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-16 05:36:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-16 05:36:20,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 05:36:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-16 05:36:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-16 05:36:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:20,938 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:20,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:20,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651046164] [2023-12-16 05:36:20,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651046164] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:20,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:20,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:36:20,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803434478] [2023-12-16 05:36:20,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:20,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:36:20,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:20,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:36:20,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:36:20,940 INFO L87 Difference]: Start difference. First operand 3171 states and 5454 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:21,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:21,875 INFO L93 Difference]: Finished difference Result 7736 states and 13603 transitions. [2023-12-16 05:36:21,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 05:36:21,876 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 143 [2023-12-16 05:36:21,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:21,898 INFO L225 Difference]: With dead ends: 7736 [2023-12-16 05:36:21,899 INFO L226 Difference]: Without dead ends: 5215 [2023-12-16 05:36:21,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:36:21,907 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 833 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:21,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 601 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 05:36:21,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5215 states. [2023-12-16 05:36:22,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5215 to 5141. [2023-12-16 05:36:22,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5141 states, 4147 states have (on average 1.6378104653966723) internal successors, (6792), 4155 states have internal predecessors, (6792), 967 states have call successors, (967), 23 states have call predecessors, (967), 26 states have return successors, (1082), 964 states have call predecessors, (1082), 964 states have call successors, (1082) [2023-12-16 05:36:22,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 8841 transitions. [2023-12-16 05:36:22,142 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 8841 transitions. Word has length 143 [2023-12-16 05:36:22,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:22,142 INFO L495 AbstractCegarLoop]: Abstraction has 5141 states and 8841 transitions. [2023-12-16 05:36:22,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:22,143 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 8841 transitions. [2023-12-16 05:36:22,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-16 05:36:22,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:22,161 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:22,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 05:36:22,162 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:22,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:22,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1467081914, now seen corresponding path program 1 times [2023-12-16 05:36:22,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:22,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373147362] [2023-12-16 05:36:22,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:22,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:22,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:22,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:22,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:36:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 05:36:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 05:36:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:36:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 05:36:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-16 05:36:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-16 05:36:22,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-16 05:36:22,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-16 05:36:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-16 05:36:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:22,228 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:22,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:22,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373147362] [2023-12-16 05:36:22,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373147362] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:22,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:22,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:36:22,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027693230] [2023-12-16 05:36:22,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:22,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:36:22,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:22,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:36:22,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:36:22,229 INFO L87 Difference]: Start difference. First operand 5141 states and 8841 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:23,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:23,178 INFO L93 Difference]: Finished difference Result 12717 states and 22351 transitions. [2023-12-16 05:36:23,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 05:36:23,179 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2023-12-16 05:36:23,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:23,257 INFO L225 Difference]: With dead ends: 12717 [2023-12-16 05:36:23,257 INFO L226 Difference]: Without dead ends: 8592 [2023-12-16 05:36:23,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:36:23,266 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 831 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:23,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 584 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 1094 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 05:36:23,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8592 states. [2023-12-16 05:36:23,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8592 to 8518. [2023-12-16 05:36:23,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8518 states, 6918 states have (on average 1.635588320323793) internal successors, (11315), 6926 states have internal predecessors, (11315), 1573 states have call successors, (1573), 23 states have call predecessors, (1573), 26 states have return successors, (1766), 1570 states have call predecessors, (1766), 1570 states have call successors, (1766) [2023-12-16 05:36:23,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8518 states to 8518 states and 14654 transitions. [2023-12-16 05:36:23,517 INFO L78 Accepts]: Start accepts. Automaton has 8518 states and 14654 transitions. Word has length 144 [2023-12-16 05:36:23,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:23,518 INFO L495 AbstractCegarLoop]: Abstraction has 8518 states and 14654 transitions. [2023-12-16 05:36:23,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:23,518 INFO L276 IsEmpty]: Start isEmpty. Operand 8518 states and 14654 transitions. [2023-12-16 05:36:23,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 05:36:23,547 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:23,547 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:23,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 05:36:23,547 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:23,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:23,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1884617875, now seen corresponding path program 1 times [2023-12-16 05:36:23,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:23,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628107950] [2023-12-16 05:36:23,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:23,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:23,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:23,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:23,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:23,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:23,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:23,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:23,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 05:36:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:23,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 05:36:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:23,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 05:36:23,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:23,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 05:36:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:23,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-16 05:36:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:23,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 05:36:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:23,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-16 05:36:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:23,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-16 05:36:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:23,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-16 05:36:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:23,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-16 05:36:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:23,620 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:23,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:23,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628107950] [2023-12-16 05:36:23,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628107950] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:23,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:23,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:36:23,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075891725] [2023-12-16 05:36:23,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:23,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:36:23,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:23,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:36:23,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:36:23,622 INFO L87 Difference]: Start difference. First operand 8518 states and 14654 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:24,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:24,776 INFO L93 Difference]: Finished difference Result 22069 states and 38750 transitions. [2023-12-16 05:36:24,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 05:36:24,776 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 145 [2023-12-16 05:36:24,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:24,825 INFO L225 Difference]: With dead ends: 22069 [2023-12-16 05:36:24,825 INFO L226 Difference]: Without dead ends: 14976 [2023-12-16 05:36:24,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:36:24,849 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 829 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:24,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 611 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 1099 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 05:36:24,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14976 states. [2023-12-16 05:36:25,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14976 to 14902. [2023-12-16 05:36:25,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14902 states, 12099 states have (on average 1.6259194974791304) internal successors, (19672), 12107 states have internal predecessors, (19672), 2776 states have call successors, (2776), 23 states have call predecessors, (2776), 26 states have return successors, (3113), 2773 states have call predecessors, (3113), 2773 states have call successors, (3113) [2023-12-16 05:36:25,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14902 states to 14902 states and 25561 transitions. [2023-12-16 05:36:25,345 INFO L78 Accepts]: Start accepts. Automaton has 14902 states and 25561 transitions. Word has length 145 [2023-12-16 05:36:25,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:25,346 INFO L495 AbstractCegarLoop]: Abstraction has 14902 states and 25561 transitions. [2023-12-16 05:36:25,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:25,346 INFO L276 IsEmpty]: Start isEmpty. Operand 14902 states and 25561 transitions. [2023-12-16 05:36:25,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-16 05:36:25,377 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:25,377 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:25,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 05:36:25,378 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:25,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:25,378 INFO L85 PathProgramCache]: Analyzing trace with hash 194799559, now seen corresponding path program 1 times [2023-12-16 05:36:25,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:25,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123513097] [2023-12-16 05:36:25,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:25,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:25,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 05:36:25,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-16 05:36:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 05:36:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 05:36:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-16 05:36:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-16 05:36:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-16 05:36:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-16 05:36:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-16 05:36:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-16 05:36:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:25,440 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:25,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:25,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123513097] [2023-12-16 05:36:25,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123513097] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:25,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:25,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:36:25,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717062866] [2023-12-16 05:36:25,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:25,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:36:25,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:25,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:36:25,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:36:25,442 INFO L87 Difference]: Start difference. First operand 14902 states and 25561 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:26,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:26,875 INFO L93 Difference]: Finished difference Result 39428 states and 69136 transitions. [2023-12-16 05:36:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 05:36:26,876 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 146 [2023-12-16 05:36:26,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:26,966 INFO L225 Difference]: With dead ends: 39428 [2023-12-16 05:36:26,966 INFO L226 Difference]: Without dead ends: 26543 [2023-12-16 05:36:26,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:36:26,989 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 827 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:26,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 571 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 05:36:27,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26543 states. [2023-12-16 05:36:27,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26543 to 26469. [2023-12-16 05:36:27,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26469 states, 21627 states have (on average 1.6219078004346419) internal successors, (35077), 21635 states have internal predecessors, (35077), 4815 states have call successors, (4815), 23 states have call predecessors, (4815), 26 states have return successors, (5426), 4812 states have call predecessors, (5426), 4812 states have call successors, (5426) [2023-12-16 05:36:27,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26469 states to 26469 states and 45318 transitions. [2023-12-16 05:36:27,917 INFO L78 Accepts]: Start accepts. Automaton has 26469 states and 45318 transitions. Word has length 146 [2023-12-16 05:36:27,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:27,917 INFO L495 AbstractCegarLoop]: Abstraction has 26469 states and 45318 transitions. [2023-12-16 05:36:27,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:27,917 INFO L276 IsEmpty]: Start isEmpty. Operand 26469 states and 45318 transitions. [2023-12-16 05:36:27,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 05:36:27,960 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:27,960 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:27,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 05:36:27,960 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:27,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:27,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1784317711, now seen corresponding path program 1 times [2023-12-16 05:36:27,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:27,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887700723] [2023-12-16 05:36:27,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:27,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:27,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:28,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:28,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 05:36:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 05:36:28,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 05:36:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 05:36:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 05:36:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 05:36:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 05:36:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-16 05:36:28,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-16 05:36:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-16 05:36:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:28,137 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:28,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:28,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887700723] [2023-12-16 05:36:28,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887700723] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:28,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:28,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:36:28,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910794254] [2023-12-16 05:36:28,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:28,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:36:28,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:28,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:36:28,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:36:28,138 INFO L87 Difference]: Start difference. First operand 26469 states and 45318 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:29,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:29,902 INFO L93 Difference]: Finished difference Result 72040 states and 125560 transitions. [2023-12-16 05:36:29,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 05:36:29,903 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 147 [2023-12-16 05:36:29,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:30,079 INFO L225 Difference]: With dead ends: 72040 [2023-12-16 05:36:30,080 INFO L226 Difference]: Without dead ends: 48303 [2023-12-16 05:36:30,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:36:30,144 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 825 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:30,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 583 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 05:36:30,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48303 states. [2023-12-16 05:36:31,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48303 to 48229. [2023-12-16 05:36:31,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48229 states, 39672 states have (on average 1.6164801371244202) internal successors, (64129), 39680 states have internal predecessors, (64129), 8530 states have call successors, (8530), 23 states have call predecessors, (8530), 26 states have return successors, (9673), 8527 states have call predecessors, (9673), 8527 states have call successors, (9673) [2023-12-16 05:36:32,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48229 states to 48229 states and 82332 transitions. [2023-12-16 05:36:32,108 INFO L78 Accepts]: Start accepts. Automaton has 48229 states and 82332 transitions. Word has length 147 [2023-12-16 05:36:32,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:32,108 INFO L495 AbstractCegarLoop]: Abstraction has 48229 states and 82332 transitions. [2023-12-16 05:36:32,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:32,109 INFO L276 IsEmpty]: Start isEmpty. Operand 48229 states and 82332 transitions. [2023-12-16 05:36:32,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-16 05:36:32,474 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:32,474 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:32,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 05:36:32,474 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:32,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:32,474 INFO L85 PathProgramCache]: Analyzing trace with hash 337944359, now seen corresponding path program 1 times [2023-12-16 05:36:32,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:32,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136313339] [2023-12-16 05:36:32,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:32,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:32,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:32,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:32,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:32,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:32,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:32,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:32,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:32,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 05:36:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:32,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 05:36:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:32,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 05:36:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:32,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-16 05:36:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:32,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-16 05:36:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:32,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-16 05:36:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:32,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-16 05:36:32,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:32,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-16 05:36:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:32,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-16 05:36:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:32,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-16 05:36:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:32,542 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 05:36:32,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:32,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136313339] [2023-12-16 05:36:32,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136313339] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:36:32,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:36:32,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 05:36:32,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688829096] [2023-12-16 05:36:32,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:36:32,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 05:36:32,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:32,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 05:36:32,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 05:36:32,544 INFO L87 Difference]: Start difference. First operand 48229 states and 82332 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:35,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:36:35,109 INFO L93 Difference]: Finished difference Result 89759 states and 156924 transitions. [2023-12-16 05:36:35,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 05:36:35,110 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 148 [2023-12-16 05:36:35,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:36:35,464 INFO L225 Difference]: With dead ends: 89759 [2023-12-16 05:36:35,464 INFO L226 Difference]: Without dead ends: 89591 [2023-12-16 05:36:35,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:36:35,503 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 823 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:35,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 570 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 05:36:35,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89591 states. [2023-12-16 05:36:38,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89591 to 89517. [2023-12-16 05:36:38,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89517 states, 74161 states have (on average 1.6094578012702094) internal successors, (119359), 74169 states have internal predecessors, (119359), 15329 states have call successors, (15329), 23 states have call predecessors, (15329), 26 states have return successors, (17518), 15326 states have call predecessors, (17518), 15326 states have call successors, (17518) [2023-12-16 05:36:38,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89517 states to 89517 states and 152206 transitions. [2023-12-16 05:36:38,924 INFO L78 Accepts]: Start accepts. Automaton has 89517 states and 152206 transitions. Word has length 148 [2023-12-16 05:36:38,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:36:38,925 INFO L495 AbstractCegarLoop]: Abstraction has 89517 states and 152206 transitions. [2023-12-16 05:36:38,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 05:36:38,925 INFO L276 IsEmpty]: Start isEmpty. Operand 89517 states and 152206 transitions. [2023-12-16 05:36:39,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-16 05:36:39,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:36:39,016 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:39,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 05:36:39,017 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:36:39,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:36:39,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1008382450, now seen corresponding path program 1 times [2023-12-16 05:36:39,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:36:39,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773628301] [2023-12-16 05:36:39,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:39,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:36:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:39,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:36:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:39,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:36:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:39,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:36:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:39,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:36:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:39,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:36:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:39,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:36:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:39,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:36:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:39,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 05:36:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:39,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 05:36:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:39,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 05:36:39,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:39,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-16 05:36:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:39,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-16 05:36:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:39,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-16 05:36:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:39,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-16 05:36:39,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:39,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-16 05:36:39,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:39,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-16 05:36:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:39,286 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-16 05:36:39,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:36:39,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773628301] [2023-12-16 05:36:39,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773628301] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:36:39,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271164835] [2023-12-16 05:36:39,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:36:39,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:39,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:36:39,302 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:36:39,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-16 05:36:39,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:36:39,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 05:36:39,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:36:39,854 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-16 05:36:39,854 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 05:36:40,124 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-16 05:36:40,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271164835] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 05:36:40,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 05:36:40,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9, 9] total 30 [2023-12-16 05:36:40,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652333131] [2023-12-16 05:36:40,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 05:36:40,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-16 05:36:40,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:36:40,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-16 05:36:40,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2023-12-16 05:36:40,127 INFO L87 Difference]: Start difference. First operand 89517 states and 152206 transitions. Second operand has 30 states, 29 states have (on average 7.896551724137931) internal successors, (229), 23 states have internal predecessors, (229), 9 states have call successors, (48), 11 states have call predecessors, (48), 11 states have return successors, (41), 11 states have call predecessors, (41), 9 states have call successors, (41) Received shutdown request... [2023-12-16 05:36:59,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2023-12-16 05:36:59,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6188 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=2702, Invalid=17038, Unknown=0, NotChecked=0, Total=19740 [2023-12-16 05:36:59,241 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 5649 mSDsluCounter, 9733 mSDsCounter, 0 mSdLazyCounter, 21155 mSolverCounterSat, 1887 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5673 SdHoareTripleChecker+Valid, 10271 SdHoareTripleChecker+Invalid, 23042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1887 IncrementalHoareTripleChecker+Valid, 21155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2023-12-16 05:36:59,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5673 Valid, 10271 Invalid, 23042 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1887 Valid, 21155 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2023-12-16 05:36:59,242 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 05:36:59,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-16 05:36:59,282 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 05:36:59,282 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 05:36:59,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:36:59,449 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (89517states) and FLOYD_HOARE automaton (currently 116 states, 30 states before enhancement),while ReachableStatesComputation was computing reachable states (269094 states constructed, input type IntersectNwa). [2023-12-16 05:36:59,452 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:36:59,454 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 05:36:59,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:36:59 BoogieIcfgContainer [2023-12-16 05:36:59,455 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 05:36:59,456 INFO L158 Benchmark]: Toolchain (without parser) took 59126.42ms. Allocated memory was 269.5MB in the beginning and 6.8GB in the end (delta: 6.6GB). Free memory was 223.8MB in the beginning and 5.6GB in the end (delta: -5.3GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-16 05:36:59,456 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 203.4MB. Free memory is still 155.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 05:36:59,456 INFO L158 Benchmark]: CACSL2BoogieTranslator took 596.33ms. Allocated memory is still 269.5MB. Free memory was 223.5MB in the beginning and 181.4MB in the end (delta: 42.1MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2023-12-16 05:36:59,456 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.41ms. Allocated memory is still 269.5MB. Free memory was 237.0MB in the beginning and 231.8MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 05:36:59,456 INFO L158 Benchmark]: Boogie Preprocessor took 98.72ms. Allocated memory is still 269.5MB. Free memory was 231.8MB in the beginning and 224.9MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 05:36:59,456 INFO L158 Benchmark]: RCFGBuilder took 913.92ms. Allocated memory is still 269.5MB. Free memory was 224.9MB in the beginning and 157.3MB in the end (delta: 67.6MB). Peak memory consumption was 67.1MB. Max. memory is 8.0GB. [2023-12-16 05:36:59,457 INFO L158 Benchmark]: TraceAbstraction took 57430.16ms. Allocated memory was 269.5MB in the beginning and 6.8GB in the end (delta: 6.6GB). Free memory was 156.8MB in the beginning and 5.6GB in the end (delta: -5.4GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-16 05:36:59,457 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 203.4MB. Free memory is still 155.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 596.33ms. Allocated memory is still 269.5MB. Free memory was 223.5MB in the beginning and 181.4MB in the end (delta: 42.1MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.41ms. Allocated memory is still 269.5MB. Free memory was 237.0MB in the beginning and 231.8MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 98.72ms. Allocated memory is still 269.5MB. Free memory was 231.8MB in the beginning and 224.9MB in the end (delta: 6.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 913.92ms. Allocated memory is still 269.5MB. Free memory was 224.9MB in the beginning and 157.3MB in the end (delta: 67.6MB). Peak memory consumption was 67.1MB. Max. memory is 8.0GB. * TraceAbstraction took 57430.16ms. Allocated memory was 269.5MB in the beginning and 6.8GB in the end (delta: 6.6GB). Free memory was 156.8MB in the beginning and 5.6GB in the end (delta: -5.4GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] - GenericResultAtLocation [Line: 208]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [208] - GenericResultAtLocation [Line: 270]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [270] - GenericResultAtLocation [Line: 279]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [279] - GenericResultAtLocation [Line: 645]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [645] - GenericResultAtLocation [Line: 1724]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1724] - GenericResultAtLocation [Line: 2007]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2007] - GenericResultAtLocation [Line: 2409]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2409] - GenericResultAtLocation [Line: 2622]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2622] - GenericResultAtLocation [Line: 2639]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2639] - GenericResultAtLocation [Line: 2674]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2674] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 275]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 275). Cancelled while NwaCegarLoop was constructing difference of abstraction (89517states) and FLOYD_HOARE automaton (currently 116 states, 30 states before enhancement),while ReachableStatesComputation was computing reachable states (269094 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 24 procedures, 313 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 57.4s, OverallIterations: 22, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.7s, AutomataDifference: 40.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19310 SdHoareTripleChecker+Valid, 23.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19068 mSDsluCounter, 27719 SdHoareTripleChecker+Invalid, 19.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22405 mSDsCounter, 6492 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46194 IncrementalHoareTripleChecker+Invalid, 52686 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6492 mSolverCounterUnsat, 5314 mSDtfsCounter, 46194 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2258 GetRequests, 1909 SyntacticMatches, 0 SemanticMatches, 349 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6421 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89517occurred in iteration=21, InterpolantAutomatonStates: 152, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.9s AutomataMinimizationTime, 21 MinimizatonAttempts, 1174 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 3896 NumberOfCodeBlocks, 3896 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 4147 ConstructedInterpolants, 0 QuantifiedInterpolants, 6609 SizeOfPredicates, 12 NumberOfNonLiveVariables, 7843 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 31 InterpolantComputations, 20 PerfectInterpolantSequences, 1292/1336 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown