/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:45:59,287 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:45:59,372 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:45:59,376 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:45:59,377 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:45:59,405 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:45:59,405 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:45:59,405 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:45:59,406 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:45:59,410 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:45:59,410 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:45:59,411 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:45:59,411 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:45:59,413 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:45:59,413 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:45:59,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:45:59,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:45:59,413 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:45:59,414 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:45:59,414 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:45:59,414 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:45:59,415 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:45:59,415 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:45:59,415 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:45:59,415 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:45:59,415 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:45:59,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:45:59,416 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:45:59,416 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:45:59,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:45:59,418 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:45:59,418 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:45:59,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:45:59,418 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:45:59,418 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:45:59,419 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:45:59,419 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:45:59,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:45:59,419 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:45:59,419 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:45:59,419 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:45:59,420 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:45:59,420 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:45:59,420 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:45:59,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:45:59,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:45:59,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:45:59,682 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:45:59,684 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:45:59,685 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product31.cil.c [2023-12-15 22:46:00,828 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:46:01,108 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:46:01,108 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product31.cil.c [2023-12-15 22:46:01,127 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/557963152/b393c9bc376849549c2eb1c442380867/FLAGa140306fc [2023-12-15 22:46:01,142 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/557963152/b393c9bc376849549c2eb1c442380867 [2023-12-15 22:46:01,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:46:01,146 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:46:01,148 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:46:01,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:46:01,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:46:01,153 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:46:01" (1/1) ... [2023-12-15 22:46:01,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ab99c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:01, skipping insertion in model container [2023-12-15 22:46:01,154 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:46:01" (1/1) ... [2023-12-15 22:46:01,218 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:46:01,649 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_spec27_product31.cil.c[61351,61364] [2023-12-15 22:46:01,663 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:46:01,676 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:46:01,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-15 22:46:01,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [363] [2023-12-15 22:46:01,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [398] [2023-12-15 22:46:01,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [810] [2023-12-15 22:46:01,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1882] [2023-12-15 22:46:01,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [2098] [2023-12-15 22:46:01,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2130] [2023-12-15 22:46:01,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2496] [2023-12-15 22:46:01,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2513] [2023-12-15 22:46:01,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2869] [2023-12-15 22:46:01,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2878] [2023-12-15 22:46:01,769 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_spec27_product31.cil.c[61351,61364] [2023-12-15 22:46:01,774 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:46:01,803 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:46:01,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:01 WrapperNode [2023-12-15 22:46:01,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:46:01,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:46:01,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:46:01,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:46:01,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:01" (1/1) ... [2023-12-15 22:46:01,850 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:01" (1/1) ... [2023-12-15 22:46:01,898 INFO L138 Inliner]: procedures = 131, calls = 205, calls flagged for inlining = 60, calls inlined = 55, statements flattened = 1001 [2023-12-15 22:46:01,898 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:46:01,899 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:46:01,899 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:46:01,899 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:46:01,917 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:01" (1/1) ... [2023-12-15 22:46:01,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:01" (1/1) ... [2023-12-15 22:46:01,923 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:01" (1/1) ... [2023-12-15 22:46:01,946 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-12-15 22:46:01,946 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:01" (1/1) ... [2023-12-15 22:46:01,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:01" (1/1) ... [2023-12-15 22:46:01,962 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:01" (1/1) ... [2023-12-15 22:46:01,970 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:01" (1/1) ... [2023-12-15 22:46:01,974 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:01" (1/1) ... [2023-12-15 22:46:01,978 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:01" (1/1) ... [2023-12-15 22:46:01,986 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:46:01,986 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:46:01,987 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:46:01,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:46:01,987 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:01" (1/1) ... [2023-12-15 22:46:01,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:46:02,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:46:02,022 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 22:46:02,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 22:46:02,078 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-15 22:46:02,079 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-15 22:46:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-15 22:46:02,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-15 22:46:02,079 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-15 22:46:02,079 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-15 22:46:02,080 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-15 22:46:02,080 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-15 22:46:02,080 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-15 22:46:02,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-15 22:46:02,080 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-15 22:46:02,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-15 22:46:02,080 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-15 22:46:02,080 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-15 22:46:02,081 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-15 22:46:02,081 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-15 22:46:02,082 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-15 22:46:02,084 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-15 22:46:02,084 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-15 22:46:02,084 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-15 22:46:02,085 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-15 22:46:02,085 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-15 22:46:02,085 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-15 22:46:02,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-15 22:46:02,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:46:02,085 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-15 22:46:02,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-15 22:46:02,085 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-15 22:46:02,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-15 22:46:02,085 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-15 22:46:02,085 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-15 22:46:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-15 22:46:02,086 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-15 22:46:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-15 22:46:02,086 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-15 22:46:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2023-12-15 22:46:02,086 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2023-12-15 22:46:02,086 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-15 22:46:02,086 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-15 22:46:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-15 22:46:02,087 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-15 22:46:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-15 22:46:02,087 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-15 22:46:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-15 22:46:02,087 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-15 22:46:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-15 22:46:02,087 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-15 22:46:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:46:02,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 22:46:02,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-15 22:46:02,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-15 22:46:02,088 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-15 22:46:02,088 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-15 22:46:02,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:46:02,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:46:02,317 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:46:02,319 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:46:02,991 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:46:03,060 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:46:03,061 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 22:46:03,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:46:03 BoogieIcfgContainer [2023-12-15 22:46:03,061 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:46:03,063 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:46:03,063 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:46:03,066 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:46:03,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:46:01" (1/3) ... [2023-12-15 22:46:03,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddee69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:46:03, skipping insertion in model container [2023-12-15 22:46:03,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:46:01" (2/3) ... [2023-12-15 22:46:03,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ddee69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:46:03, skipping insertion in model container [2023-12-15 22:46:03,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:46:03" (3/3) ... [2023-12-15 22:46:03,069 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product31.cil.c [2023-12-15 22:46:03,085 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:46:03,085 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:46:03,140 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:46:03,146 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;@301af395, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:46:03,147 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:46:03,153 INFO L276 IsEmpty]: Start isEmpty. Operand has 344 states, 257 states have (on average 1.556420233463035) internal successors, (400), 261 states have internal predecessors, (400), 61 states have call successors, (61), 24 states have call predecessors, (61), 24 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-12-15 22:46:03,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-15 22:46:03,171 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:03,172 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:03,173 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:03,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:03,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1559887207, now seen corresponding path program 1 times [2023-12-15 22:46:03,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:03,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966104056] [2023-12-15 22:46:03,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:03,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:03,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:46:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:46:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:46:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-15 22:46:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 22:46:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:46:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-15 22:46:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:46:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 22:46:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 22:46:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:46:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-15 22:46:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:46:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-15 22:46:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-15 22:46:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-15 22:46:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:03,936 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-15 22:46:03,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:03,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966104056] [2023-12-15 22:46:03,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966104056] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:46:03,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846050089] [2023-12-15 22:46:03,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:03,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:46:03,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:46:03,952 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:46:03,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 22:46:04,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:04,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 1172 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 22:46:04,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:46:04,336 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-15 22:46:04,336 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:46:04,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846050089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:04,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:46:04,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-12-15 22:46:04,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242199075] [2023-12-15 22:46:04,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:04,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 22:46:04,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:04,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 22:46:04,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:46:04,385 INFO L87 Difference]: Start difference. First operand has 344 states, 257 states have (on average 1.556420233463035) internal successors, (400), 261 states have internal predecessors, (400), 61 states have call successors, (61), 24 states have call predecessors, (61), 24 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:04,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:04,489 INFO L93 Difference]: Finished difference Result 543 states and 807 transitions. [2023-12-15 22:46:04,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 22:46:04,491 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 136 [2023-12-15 22:46:04,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:04,502 INFO L225 Difference]: With dead ends: 543 [2023-12-15 22:46:04,502 INFO L226 Difference]: Without dead ends: 341 [2023-12-15 22:46:04,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:46:04,510 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:04,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 502 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:46:04,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-12-15 22:46:04,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2023-12-15 22:46:04,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 255 states have (on average 1.5411764705882354) internal successors, (393), 258 states have internal predecessors, (393), 61 states have call successors, (61), 24 states have call predecessors, (61), 24 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-15 22:46:04,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 514 transitions. [2023-12-15 22:46:04,575 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 514 transitions. Word has length 136 [2023-12-15 22:46:04,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:04,577 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 514 transitions. [2023-12-15 22:46:04,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:04,577 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 514 transitions. [2023-12-15 22:46:04,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-15 22:46:04,583 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:04,583 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:04,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 22:46:04,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-15 22:46:04,790 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:04,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:04,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1770963714, now seen corresponding path program 1 times [2023-12-15 22:46:04,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:04,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026440319] [2023-12-15 22:46:04,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:04,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:46:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:46:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:46:05,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-15 22:46:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 22:46:05,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 22:46:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 22:46:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:46:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:46:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:46:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:46:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:46:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:46:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-15 22:46:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-15 22:46:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 22:46:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,131 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-15 22:46:05,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:05,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026440319] [2023-12-15 22:46:05,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026440319] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:46:05,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768331593] [2023-12-15 22:46:05,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:05,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:46:05,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:46:05,135 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:46:05,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 22:46:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 1173 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 22:46:05,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:46:05,478 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-15 22:46:05,478 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:46:05,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768331593] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:05,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:46:05,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-15 22:46:05,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293216529] [2023-12-15 22:46:05,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:05,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:46:05,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:05,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:46:05,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:46:05,482 INFO L87 Difference]: Start difference. First operand 341 states and 514 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:05,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:05,583 INFO L93 Difference]: Finished difference Result 539 states and 794 transitions. [2023-12-15 22:46:05,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:46:05,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 137 [2023-12-15 22:46:05,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:05,587 INFO L225 Difference]: With dead ends: 539 [2023-12-15 22:46:05,587 INFO L226 Difference]: Without dead ends: 343 [2023-12-15 22:46:05,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:46:05,590 INFO L413 NwaCegarLoop]: 499 mSDtfsCounter, 0 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:05,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 997 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:46:05,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-12-15 22:46:05,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2023-12-15 22:46:05,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 257 states have (on average 1.5369649805447472) internal successors, (395), 260 states have internal predecessors, (395), 61 states have call successors, (61), 24 states have call predecessors, (61), 24 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-15 22:46:05,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 516 transitions. [2023-12-15 22:46:05,633 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 516 transitions. Word has length 137 [2023-12-15 22:46:05,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:05,634 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 516 transitions. [2023-12-15 22:46:05,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:05,637 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 516 transitions. [2023-12-15 22:46:05,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-15 22:46:05,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:05,642 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:05,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 22:46:05,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-15 22:46:05,849 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:05,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:05,849 INFO L85 PathProgramCache]: Analyzing trace with hash 413371064, now seen corresponding path program 1 times [2023-12-15 22:46:05,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:05,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529435753] [2023-12-15 22:46:05,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:05,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:05,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:05,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:46:06,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:46:06,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:46:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 22:46:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:46:06,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-15 22:46:06,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:46:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 22:46:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 22:46:06,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:46:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 22:46:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-15 22:46:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:46:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-15 22:46:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-15 22:46:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-15 22:46:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,067 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-15 22:46:06,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:06,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529435753] [2023-12-15 22:46:06,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529435753] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:46:06,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364943533] [2023-12-15 22:46:06,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:06,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:46:06,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:46:06,069 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:46:06,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 22:46:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 1185 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:46:06,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:46:06,393 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-15 22:46:06,393 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:46:06,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364943533] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:06,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:46:06,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-15 22:46:06,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941467803] [2023-12-15 22:46:06,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:06,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:46:06,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:06,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:46:06,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:46:06,396 INFO L87 Difference]: Start difference. First operand 343 states and 516 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:06,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:06,461 INFO L93 Difference]: Finished difference Result 716 states and 1091 transitions. [2023-12-15 22:46:06,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:46:06,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 142 [2023-12-15 22:46:06,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:06,467 INFO L225 Difference]: With dead ends: 716 [2023-12-15 22:46:06,467 INFO L226 Difference]: Without dead ends: 395 [2023-12-15 22:46:06,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:46:06,472 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 102 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:06,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 965 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:46:06,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2023-12-15 22:46:06,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 390. [2023-12-15 22:46:06,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 293 states have (on average 1.552901023890785) internal successors, (455), 296 states have internal predecessors, (455), 72 states have call successors, (72), 24 states have call predecessors, (72), 24 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2023-12-15 22:46:06,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 598 transitions. [2023-12-15 22:46:06,507 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 598 transitions. Word has length 142 [2023-12-15 22:46:06,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:06,508 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 598 transitions. [2023-12-15 22:46:06,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:06,508 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 598 transitions. [2023-12-15 22:46:06,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-15 22:46:06,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:06,512 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:06,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 22:46:06,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:46:06,720 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:06,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:06,721 INFO L85 PathProgramCache]: Analyzing trace with hash 122793555, now seen corresponding path program 1 times [2023-12-15 22:46:06,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:06,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965954607] [2023-12-15 22:46:06,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:06,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-15 22:46:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:46:06,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-15 22:46:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-15 22:46:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-15 22:46:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:46:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:46:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:46:06,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:46:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:46:06,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-15 22:46:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 22:46:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:46:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-15 22:46:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 22:46:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-15 22:46:06,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:06,983 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-15 22:46:06,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:06,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965954607] [2023-12-15 22:46:06,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965954607] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:46:06,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702942422] [2023-12-15 22:46:06,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:06,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:46:06,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:46:06,985 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:46:07,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 22:46:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 1190 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-15 22:46:07,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:46:07,364 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:46:07,364 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:46:07,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702942422] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:07,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:46:07,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-15 22:46:07,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810249617] [2023-12-15 22:46:07,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:07,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:46:07,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:07,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:46:07,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:46:07,367 INFO L87 Difference]: Start difference. First operand 390 states and 598 transitions. Second operand has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-15 22:46:07,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:07,477 INFO L93 Difference]: Finished difference Result 775 states and 1190 transitions. [2023-12-15 22:46:07,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:46:07,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 143 [2023-12-15 22:46:07,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:07,482 INFO L225 Difference]: With dead ends: 775 [2023-12-15 22:46:07,482 INFO L226 Difference]: Without dead ends: 392 [2023-12-15 22:46:07,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:46:07,486 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 8 mSDsluCounter, 1459 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1949 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:07,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1949 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:46:07,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2023-12-15 22:46:07,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2023-12-15 22:46:07,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 294 states have (on average 1.5510204081632653) internal successors, (456), 298 states have internal predecessors, (456), 72 states have call successors, (72), 24 states have call predecessors, (72), 25 states have return successors, (73), 71 states have call predecessors, (73), 71 states have call successors, (73) [2023-12-15 22:46:07,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 601 transitions. [2023-12-15 22:46:07,504 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 601 transitions. Word has length 143 [2023-12-15 22:46:07,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:07,505 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 601 transitions. [2023-12-15 22:46:07,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-15 22:46:07,505 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 601 transitions. [2023-12-15 22:46:07,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-15 22:46:07,507 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:07,508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:07,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 22:46:07,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:46:07,711 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:07,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:07,711 INFO L85 PathProgramCache]: Analyzing trace with hash -931012614, now seen corresponding path program 1 times [2023-12-15 22:46:07,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:07,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857713792] [2023-12-15 22:46:07,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:07,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:07,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:07,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:07,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:46:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-15 22:46:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-15 22:46:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 22:46:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:46:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-15 22:46:07,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:46:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 22:46:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:46:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-15 22:46:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-15 22:46:07,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 22:46:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:46:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-15 22:46:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-12-15 22:46:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-15 22:46:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:07,944 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-15 22:46:07,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:07,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857713792] [2023-12-15 22:46:07,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857713792] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:46:07,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615610492] [2023-12-15 22:46:07,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:07,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:46:07,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:46:07,946 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:46:07,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 22:46:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 1191 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 22:46:08,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:46:08,289 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:46:08,289 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:46:08,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615610492] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:08,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:46:08,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-15 22:46:08,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244011962] [2023-12-15 22:46:08,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:08,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:46:08,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:08,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:46:08,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:46:08,292 INFO L87 Difference]: Start difference. First operand 392 states and 601 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-15 22:46:08,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:08,395 INFO L93 Difference]: Finished difference Result 777 states and 1195 transitions. [2023-12-15 22:46:08,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:46:08,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 144 [2023-12-15 22:46:08,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:08,398 INFO L225 Difference]: With dead ends: 777 [2023-12-15 22:46:08,398 INFO L226 Difference]: Without dead ends: 394 [2023-12-15 22:46:08,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-15 22:46:08,400 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 8 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1935 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:08,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1935 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:46:08,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2023-12-15 22:46:08,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2023-12-15 22:46:08,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 295 states have (on average 1.5491525423728814) internal successors, (457), 300 states have internal predecessors, (457), 72 states have call successors, (72), 24 states have call predecessors, (72), 26 states have return successors, (78), 71 states have call predecessors, (78), 71 states have call successors, (78) [2023-12-15 22:46:08,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 607 transitions. [2023-12-15 22:46:08,415 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 607 transitions. Word has length 144 [2023-12-15 22:46:08,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:08,416 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 607 transitions. [2023-12-15 22:46:08,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-15 22:46:08,416 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 607 transitions. [2023-12-15 22:46:08,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-15 22:46:08,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:08,419 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:08,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 22:46:08,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:46:08,631 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:08,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:08,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1061444884, now seen corresponding path program 1 times [2023-12-15 22:46:08,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:08,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118721593] [2023-12-15 22:46:08,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:08,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:46:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:46:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 22:46:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-15 22:46:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 22:46:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 22:46:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:46:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 22:46:08,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 22:46:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:46:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:46:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-15 22:46:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:46:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-15 22:46:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-15 22:46:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-15 22:46:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:08,862 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-15 22:46:08,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:08,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118721593] [2023-12-15 22:46:08,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118721593] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:08,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:46:08,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:46:08,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541398782] [2023-12-15 22:46:08,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:08,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:46:08,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:08,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:46:08,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:46:08,864 INFO L87 Difference]: Start difference. First operand 394 states and 607 transitions. Second operand has 9 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-15 22:46:10,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:10,930 INFO L93 Difference]: Finished difference Result 912 states and 1417 transitions. [2023-12-15 22:46:10,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 22:46:10,930 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 145 [2023-12-15 22:46:10,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:10,936 INFO L225 Difference]: With dead ends: 912 [2023-12-15 22:46:10,936 INFO L226 Difference]: Without dead ends: 537 [2023-12-15 22:46:10,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:46:10,939 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 1176 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2475 mSolverCounterSat, 459 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 2934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 459 IncrementalHoareTripleChecker+Valid, 2475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:10,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 963 Invalid, 2934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [459 Valid, 2475 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-15 22:46:10,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2023-12-15 22:46:10,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 394. [2023-12-15 22:46:10,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 295 states have (on average 1.5491525423728814) internal successors, (457), 300 states have internal predecessors, (457), 72 states have call successors, (72), 24 states have call predecessors, (72), 26 states have return successors, (77), 71 states have call predecessors, (77), 71 states have call successors, (77) [2023-12-15 22:46:10,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 606 transitions. [2023-12-15 22:46:10,989 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 606 transitions. Word has length 145 [2023-12-15 22:46:10,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:10,990 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 606 transitions. [2023-12-15 22:46:10,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.5) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-15 22:46:10,990 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 606 transitions. [2023-12-15 22:46:10,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-15 22:46:10,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:10,994 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:10,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 22:46:10,994 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:10,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:10,994 INFO L85 PathProgramCache]: Analyzing trace with hash -969367015, now seen corresponding path program 2 times [2023-12-15 22:46:10,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:10,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934665640] [2023-12-15 22:46:10,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:10,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:46:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:46:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 22:46:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 22:46:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-15 22:46:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 22:46:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 22:46:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 22:46:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:46:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:46:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 22:46:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-15 22:46:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:46:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-15 22:46:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-15 22:46:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-15 22:46:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:11,224 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-15 22:46:11,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:11,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934665640] [2023-12-15 22:46:11,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934665640] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:11,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:46:11,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-15 22:46:11,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164595736] [2023-12-15 22:46:11,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:11,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 22:46:11,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:11,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 22:46:11,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:46:11,228 INFO L87 Difference]: Start difference. First operand 394 states and 606 transitions. Second operand has 9 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-15 22:46:13,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:13,234 INFO L93 Difference]: Finished difference Result 914 states and 1420 transitions. [2023-12-15 22:46:13,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 22:46:13,235 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 146 [2023-12-15 22:46:13,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:13,238 INFO L225 Difference]: With dead ends: 914 [2023-12-15 22:46:13,238 INFO L226 Difference]: Without dead ends: 539 [2023-12-15 22:46:13,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:46:13,240 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 1147 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2589 mSolverCounterSat, 465 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 3054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 465 IncrementalHoareTripleChecker+Valid, 2589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:13,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 963 Invalid, 3054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [465 Valid, 2589 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-15 22:46:13,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2023-12-15 22:46:13,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 396. [2023-12-15 22:46:13,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 296 states have (on average 1.5472972972972974) internal successors, (458), 302 states have internal predecessors, (458), 72 states have call successors, (72), 24 states have call predecessors, (72), 27 states have return successors, (79), 71 states have call predecessors, (79), 71 states have call successors, (79) [2023-12-15 22:46:13,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 609 transitions. [2023-12-15 22:46:13,267 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 609 transitions. Word has length 146 [2023-12-15 22:46:13,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:13,268 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 609 transitions. [2023-12-15 22:46:13,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-15 22:46:13,268 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 609 transitions. [2023-12-15 22:46:13,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-15 22:46:13,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:13,270 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:13,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 22:46:13,270 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:13,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:13,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1120146823, now seen corresponding path program 1 times [2023-12-15 22:46:13,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:13,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82460112] [2023-12-15 22:46:13,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:13,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:13,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:13,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:13,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:13,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:46:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:13,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:46:13,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:13,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:46:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:13,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:46:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:13,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 22:46:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:13,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:46:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:13,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 22:46:13,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:13,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 22:46:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:13,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 22:46:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:13,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 22:46:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:13,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-15 22:46:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:13,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-15 22:46:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:13,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:46:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:13,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 22:46:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:13,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-15 22:46:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:13,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-15 22:46:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:13,500 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-15 22:46:13,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:13,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82460112] [2023-12-15 22:46:13,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82460112] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:13,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:46:13,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 22:46:13,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632714032] [2023-12-15 22:46:13,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:13,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 22:46:13,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:13,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 22:46:13,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:46:13,502 INFO L87 Difference]: Start difference. First operand 396 states and 609 transitions. Second operand has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-15 22:46:16,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:16,149 INFO L93 Difference]: Finished difference Result 912 states and 1415 transitions. [2023-12-15 22:46:16,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 22:46:16,150 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 147 [2023-12-15 22:46:16,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:16,153 INFO L225 Difference]: With dead ends: 912 [2023-12-15 22:46:16,153 INFO L226 Difference]: Without dead ends: 539 [2023-12-15 22:46:16,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-15 22:46:16,155 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 1224 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 4048 mSolverCounterSat, 488 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 4536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 488 IncrementalHoareTripleChecker+Valid, 4048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:16,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1225 Valid, 1332 Invalid, 4536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [488 Valid, 4048 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-15 22:46:16,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2023-12-15 22:46:16,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 396. [2023-12-15 22:46:16,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 296 states have (on average 1.5472972972972974) internal successors, (458), 302 states have internal predecessors, (458), 72 states have call successors, (72), 24 states have call predecessors, (72), 27 states have return successors, (78), 71 states have call predecessors, (78), 71 states have call successors, (78) [2023-12-15 22:46:16,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 608 transitions. [2023-12-15 22:46:16,181 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 608 transitions. Word has length 147 [2023-12-15 22:46:16,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:16,182 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 608 transitions. [2023-12-15 22:46:16,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 8 states have internal predecessors, (89), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-15 22:46:16,182 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 608 transitions. [2023-12-15 22:46:16,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-15 22:46:16,184 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:16,184 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:16,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 22:46:16,184 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:16,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:16,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1081715599, now seen corresponding path program 2 times [2023-12-15 22:46:16,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:16,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431943175] [2023-12-15 22:46:16,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:16,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:16,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:16,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:16,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:16,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:46:16,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:16,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:46:16,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:16,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:46:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:16,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-15 22:46:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:16,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 22:46:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:16,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:46:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:16,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 22:46:16,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:16,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:46:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:16,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:46:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:16,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-15 22:46:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:16,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 22:46:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:16,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-15 22:46:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:16,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:46:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:16,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-15 22:46:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:16,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-15 22:46:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:16,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-15 22:46:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:16,417 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-15 22:46:16,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:16,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431943175] [2023-12-15 22:46:16,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431943175] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:16,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:46:16,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-15 22:46:16,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219291590] [2023-12-15 22:46:16,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:16,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-15 22:46:16,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:16,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-15 22:46:16,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:46:16,420 INFO L87 Difference]: Start difference. First operand 396 states and 608 transitions. Second operand has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-15 22:46:19,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:19,069 INFO L93 Difference]: Finished difference Result 914 states and 1421 transitions. [2023-12-15 22:46:19,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 22:46:19,069 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 148 [2023-12-15 22:46:19,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:19,073 INFO L225 Difference]: With dead ends: 914 [2023-12-15 22:46:19,073 INFO L226 Difference]: Without dead ends: 541 [2023-12-15 22:46:19,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-15 22:46:19,075 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 1176 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 4325 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 4761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 4325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:19,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1177 Valid, 1332 Invalid, 4761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 4325 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-15 22:46:19,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-12-15 22:46:19,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 398. [2023-12-15 22:46:19,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 297 states have (on average 1.5454545454545454) internal successors, (459), 304 states have internal predecessors, (459), 72 states have call successors, (72), 24 states have call predecessors, (72), 28 states have return successors, (83), 71 states have call predecessors, (83), 71 states have call successors, (83) [2023-12-15 22:46:19,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 614 transitions. [2023-12-15 22:46:19,103 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 614 transitions. Word has length 148 [2023-12-15 22:46:19,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:19,103 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 614 transitions. [2023-12-15 22:46:19,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.181818181818182) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-15 22:46:19,104 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 614 transitions. [2023-12-15 22:46:19,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-15 22:46:19,106 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:19,106 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:19,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 22:46:19,106 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:19,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:19,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1808158206, now seen corresponding path program 1 times [2023-12-15 22:46:19,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:19,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465719673] [2023-12-15 22:46:19,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:19,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:46:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:46:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:46:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:46:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-15 22:46:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:46:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:46:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 22:46:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:46:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-15 22:46:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 22:46:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-15 22:46:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:46:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-15 22:46:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-15 22:46:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-15 22:46:19,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,240 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-15 22:46:19,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:19,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465719673] [2023-12-15 22:46:19,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465719673] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:46:19,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763922368] [2023-12-15 22:46:19,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:19,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:46:19,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:46:19,242 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:46:19,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 22:46:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:19,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 1196 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:46:19,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:46:19,590 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-15 22:46:19,590 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:46:19,674 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-15 22:46:19,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763922368] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:46:19,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:46:19,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2023-12-15 22:46:19,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759321779] [2023-12-15 22:46:19,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:46:19,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 22:46:19,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:19,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 22:46:19,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-15 22:46:19,679 INFO L87 Difference]: Start difference. First operand 398 states and 614 transitions. Second operand has 11 states, 11 states have (on average 11.909090909090908) internal successors, (131), 7 states have internal predecessors, (131), 2 states have call successors, (43), 6 states have call predecessors, (43), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-15 22:46:21,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:21,500 INFO L93 Difference]: Finished difference Result 1067 states and 1733 transitions. [2023-12-15 22:46:21,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-15 22:46:21,500 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.909090909090908) internal successors, (131), 7 states have internal predecessors, (131), 2 states have call successors, (43), 6 states have call predecessors, (43), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 149 [2023-12-15 22:46:21,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:21,506 INFO L225 Difference]: With dead ends: 1067 [2023-12-15 22:46:21,506 INFO L226 Difference]: Without dead ends: 871 [2023-12-15 22:46:21,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:46:21,508 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 1546 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 2179 mSolverCounterSat, 608 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 2787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 2179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:21,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1591 Valid, 1208 Invalid, 2787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [608 Valid, 2179 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 22:46:21,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2023-12-15 22:46:21,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 713. [2023-12-15 22:46:21,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 548 states have (on average 1.6131386861313868) internal successors, (884), 555 states have internal predecessors, (884), 136 states have call successors, (136), 24 states have call predecessors, (136), 28 states have return successors, (157), 135 states have call predecessors, (157), 135 states have call successors, (157) [2023-12-15 22:46:21,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 1177 transitions. [2023-12-15 22:46:21,549 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 1177 transitions. Word has length 149 [2023-12-15 22:46:21,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:21,550 INFO L495 AbstractCegarLoop]: Abstraction has 713 states and 1177 transitions. [2023-12-15 22:46:21,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.909090909090908) internal successors, (131), 7 states have internal predecessors, (131), 2 states have call successors, (43), 6 states have call predecessors, (43), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-12-15 22:46:21,550 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 1177 transitions. [2023-12-15 22:46:21,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-15 22:46:21,554 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:21,554 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:21,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-15 22:46:21,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:46:21,759 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:21,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:21,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1583562395, now seen corresponding path program 1 times [2023-12-15 22:46:21,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:21,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924054581] [2023-12-15 22:46:21,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:21,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:21,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:21,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:21,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:21,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:21,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:46:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:21,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:46:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:21,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:46:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:21,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-15 22:46:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:21,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:46:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:21,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 22:46:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:21,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 22:46:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:21,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:46:21,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:21,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-15 22:46:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:21,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 22:46:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:21,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-15 22:46:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:21,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 22:46:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:21,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:46:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:21,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-12-15 22:46:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:21,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-15 22:46:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:21,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-15 22:46:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:21,929 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-15 22:46:21,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:21,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924054581] [2023-12-15 22:46:21,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924054581] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:21,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:46:21,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:46:21,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502772074] [2023-12-15 22:46:21,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:21,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:46:21,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:21,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:46:21,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:46:21,931 INFO L87 Difference]: Start difference. First operand 713 states and 1177 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:23,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:23,317 INFO L93 Difference]: Finished difference Result 1826 states and 3082 transitions. [2023-12-15 22:46:23,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:46:23,317 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 155 [2023-12-15 22:46:23,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:23,324 INFO L225 Difference]: With dead ends: 1826 [2023-12-15 22:46:23,325 INFO L226 Difference]: Without dead ends: 1173 [2023-12-15 22:46:23,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:46:23,328 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 1280 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 1452 mSolverCounterSat, 527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 1452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:23,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 749 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 1452 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:46:23,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2023-12-15 22:46:23,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1025. [2023-12-15 22:46:23,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 796 states have (on average 1.6281407035175879) internal successors, (1296), 803 states have internal predecessors, (1296), 200 states have call successors, (200), 24 states have call predecessors, (200), 28 states have return successors, (231), 199 states have call predecessors, (231), 199 states have call successors, (231) [2023-12-15 22:46:23,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1727 transitions. [2023-12-15 22:46:23,376 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1727 transitions. Word has length 155 [2023-12-15 22:46:23,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:23,377 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1727 transitions. [2023-12-15 22:46:23,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:23,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1727 transitions. [2023-12-15 22:46:23,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-15 22:46:23,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:23,383 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:23,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 22:46:23,383 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:23,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:23,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1908947821, now seen corresponding path program 1 times [2023-12-15 22:46:23,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:23,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524083405] [2023-12-15 22:46:23,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:23,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:23,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:23,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:23,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:23,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:46:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:23,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:46:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:23,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:46:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:23,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:46:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:23,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:46:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:23,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 22:46:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:23,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:46:23,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:23,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 22:46:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:23,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-15 22:46:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:23,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-15 22:46:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:23,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-15 22:46:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:23,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-15 22:46:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:23,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:46:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:23,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-12-15 22:46:23,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:23,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-15 22:46:23,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:23,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-15 22:46:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:23,522 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-15 22:46:23,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:23,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524083405] [2023-12-15 22:46:23,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524083405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:23,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:46:23,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:46:23,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637565298] [2023-12-15 22:46:23,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:23,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:46:23,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:23,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:46:23,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:46:23,524 INFO L87 Difference]: Start difference. First operand 1025 states and 1727 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:24,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:24,874 INFO L93 Difference]: Finished difference Result 2575 states and 4400 transitions. [2023-12-15 22:46:24,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:46:24,875 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 156 [2023-12-15 22:46:24,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:24,885 INFO L225 Difference]: With dead ends: 2575 [2023-12-15 22:46:24,885 INFO L226 Difference]: Without dead ends: 1660 [2023-12-15 22:46:24,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:46:24,890 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1269 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 1978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:24,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 715 Invalid, 1978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:46:24,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2023-12-15 22:46:24,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1512. [2023-12-15 22:46:24,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1512 states, 1188 states have (on average 1.638047138047138) internal successors, (1946), 1195 states have internal predecessors, (1946), 295 states have call successors, (295), 24 states have call predecessors, (295), 28 states have return successors, (326), 294 states have call predecessors, (326), 294 states have call successors, (326) [2023-12-15 22:46:24,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1512 states to 1512 states and 2567 transitions. [2023-12-15 22:46:24,953 INFO L78 Accepts]: Start accepts. Automaton has 1512 states and 2567 transitions. Word has length 156 [2023-12-15 22:46:24,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:24,954 INFO L495 AbstractCegarLoop]: Abstraction has 1512 states and 2567 transitions. [2023-12-15 22:46:24,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:24,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1512 states and 2567 transitions. [2023-12-15 22:46:24,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-15 22:46:24,962 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:24,962 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:24,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 22:46:24,963 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:24,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:24,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1836612541, now seen corresponding path program 1 times [2023-12-15 22:46:24,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:24,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179099068] [2023-12-15 22:46:24,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:24,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:25,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:25,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:25,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:25,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:25,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:46:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:25,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:46:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:25,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:46:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:25,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-15 22:46:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:25,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:46:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:25,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-15 22:46:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:25,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:46:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:25,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:46:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:25,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:46:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:25,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 22:46:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:25,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-15 22:46:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:25,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-12-15 22:46:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:25,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:46:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:25,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-15 22:46:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:25,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-15 22:46:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:25,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-15 22:46:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:25,082 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-15 22:46:25,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:25,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179099068] [2023-12-15 22:46:25,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179099068] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:25,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:46:25,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:46:25,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521883063] [2023-12-15 22:46:25,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:25,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:46:25,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:25,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:46:25,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:46:25,085 INFO L87 Difference]: Start difference. First operand 1512 states and 2567 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:26,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:26,400 INFO L93 Difference]: Finished difference Result 3677 states and 6359 transitions. [2023-12-15 22:46:26,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:46:26,401 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 157 [2023-12-15 22:46:26,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:26,436 INFO L225 Difference]: With dead ends: 3677 [2023-12-15 22:46:26,436 INFO L226 Difference]: Without dead ends: 2395 [2023-12-15 22:46:26,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:46:26,443 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 1326 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1341 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:26,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1341 Valid, 708 Invalid, 1885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 22:46:26,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2395 states. [2023-12-15 22:46:26,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2395 to 2247. [2023-12-15 22:46:26,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2247 states, 1800 states have (on average 1.646111111111111) internal successors, (2963), 1807 states have internal predecessors, (2963), 418 states have call successors, (418), 24 states have call predecessors, (418), 28 states have return successors, (465), 417 states have call predecessors, (465), 417 states have call successors, (465) [2023-12-15 22:46:26,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2247 states to 2247 states and 3846 transitions. [2023-12-15 22:46:26,555 INFO L78 Accepts]: Start accepts. Automaton has 2247 states and 3846 transitions. Word has length 157 [2023-12-15 22:46:26,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:26,555 INFO L495 AbstractCegarLoop]: Abstraction has 2247 states and 3846 transitions. [2023-12-15 22:46:26,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:26,556 INFO L276 IsEmpty]: Start isEmpty. Operand 2247 states and 3846 transitions. [2023-12-15 22:46:26,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-15 22:46:26,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:26,568 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:26,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 22:46:26,568 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:26,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:26,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1660259698, now seen corresponding path program 1 times [2023-12-15 22:46:26,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:26,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633659285] [2023-12-15 22:46:26,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:26,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:26,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:26,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:26,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:26,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:46:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:26,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:46:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:26,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:46:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:26,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 22:46:26,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:26,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:46:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:26,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 22:46:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:26,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-15 22:46:26,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:26,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 22:46:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:26,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 22:46:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:26,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 22:46:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:26,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-15 22:46:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:26,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-15 22:46:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:26,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:46:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:26,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-15 22:46:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:26,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-12-15 22:46:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:26,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-15 22:46:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:26,662 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-15 22:46:26,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:26,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633659285] [2023-12-15 22:46:26,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633659285] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:26,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:46:26,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:46:26,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060481998] [2023-12-15 22:46:26,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:26,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:46:26,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:26,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:46:26,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:46:26,665 INFO L87 Difference]: Start difference. First operand 2247 states and 3846 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:28,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:28,130 INFO L93 Difference]: Finished difference Result 5387 states and 9409 transitions. [2023-12-15 22:46:28,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:46:28,131 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 158 [2023-12-15 22:46:28,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:28,149 INFO L225 Difference]: With dead ends: 5387 [2023-12-15 22:46:28,149 INFO L226 Difference]: Without dead ends: 3567 [2023-12-15 22:46:28,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:46:28,157 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 1307 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 536 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 1902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 536 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:28,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 711 Invalid, 1902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [536 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:46:28,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3567 states. [2023-12-15 22:46:28,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3567 to 3419. [2023-12-15 22:46:28,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3419 states, 2793 states have (on average 1.6516290726817042) internal successors, (4613), 2800 states have internal predecessors, (4613), 597 states have call successors, (597), 24 states have call predecessors, (597), 28 states have return successors, (670), 596 states have call predecessors, (670), 596 states have call successors, (670) [2023-12-15 22:46:28,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3419 states to 3419 states and 5880 transitions. [2023-12-15 22:46:28,305 INFO L78 Accepts]: Start accepts. Automaton has 3419 states and 5880 transitions. Word has length 158 [2023-12-15 22:46:28,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:28,305 INFO L495 AbstractCegarLoop]: Abstraction has 3419 states and 5880 transitions. [2023-12-15 22:46:28,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:28,306 INFO L276 IsEmpty]: Start isEmpty. Operand 3419 states and 5880 transitions. [2023-12-15 22:46:28,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-12-15 22:46:28,321 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:28,321 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:28,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 22:46:28,322 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:28,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:28,322 INFO L85 PathProgramCache]: Analyzing trace with hash -131549191, now seen corresponding path program 1 times [2023-12-15 22:46:28,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:28,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706369365] [2023-12-15 22:46:28,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:28,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:28,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:28,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:28,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:28,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:46:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:28,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:46:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:28,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:46:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:28,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 22:46:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:28,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:46:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:28,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-15 22:46:28,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:28,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 22:46:28,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:28,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-15 22:46:28,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:28,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-15 22:46:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:28,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-15 22:46:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:28,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-15 22:46:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:28,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-12-15 22:46:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:28,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:46:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:28,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-15 22:46:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:28,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-12-15 22:46:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:28,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-15 22:46:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:28,450 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-15 22:46:28,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:28,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706369365] [2023-12-15 22:46:28,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706369365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:28,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:46:28,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:46:28,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142512245] [2023-12-15 22:46:28,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:28,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:46:28,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:28,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:46:28,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:46:28,451 INFO L87 Difference]: Start difference. First operand 3419 states and 5880 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:29,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:29,848 INFO L93 Difference]: Finished difference Result 8242 states and 14463 transitions. [2023-12-15 22:46:29,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:46:29,852 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 159 [2023-12-15 22:46:29,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:29,882 INFO L225 Difference]: With dead ends: 8242 [2023-12-15 22:46:29,883 INFO L226 Difference]: Without dead ends: 5537 [2023-12-15 22:46:29,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:46:29,895 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 1287 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 1956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 531 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:29,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1302 Valid, 754 Invalid, 1956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [531 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:46:29,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5537 states. [2023-12-15 22:46:30,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5537 to 5389. [2023-12-15 22:46:30,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5389 states, 4387 states have (on average 1.642124458627764) internal successors, (7204), 4394 states have internal predecessors, (7204), 973 states have call successors, (973), 24 states have call predecessors, (973), 28 states have return successors, (1090), 972 states have call predecessors, (1090), 972 states have call successors, (1090) [2023-12-15 22:46:30,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5389 states to 5389 states and 9267 transitions. [2023-12-15 22:46:30,189 INFO L78 Accepts]: Start accepts. Automaton has 5389 states and 9267 transitions. Word has length 159 [2023-12-15 22:46:30,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:30,190 INFO L495 AbstractCegarLoop]: Abstraction has 5389 states and 9267 transitions. [2023-12-15 22:46:30,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:30,190 INFO L276 IsEmpty]: Start isEmpty. Operand 5389 states and 9267 transitions. [2023-12-15 22:46:30,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-15 22:46:30,214 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:30,214 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:30,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 22:46:30,214 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:30,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:30,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1981871534, now seen corresponding path program 1 times [2023-12-15 22:46:30,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:30,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944043711] [2023-12-15 22:46:30,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:30,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:30,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:30,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:30,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:30,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:46:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:30,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:46:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:30,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:46:30,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:30,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:46:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:30,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-15 22:46:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:30,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 22:46:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:30,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 22:46:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:30,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-15 22:46:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:30,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 22:46:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:30,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-15 22:46:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:30,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-15 22:46:30,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:30,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-12-15 22:46:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:30,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:46:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:30,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-15 22:46:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:30,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-12-15 22:46:30,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:30,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-12-15 22:46:30,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:30,334 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-15 22:46:30,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:30,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944043711] [2023-12-15 22:46:30,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944043711] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:30,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:46:30,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:46:30,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443386863] [2023-12-15 22:46:30,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:30,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:46:30,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:30,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:46:30,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:46:30,336 INFO L87 Difference]: Start difference. First operand 5389 states and 9267 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:31,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:31,877 INFO L93 Difference]: Finished difference Result 13379 states and 23484 transitions. [2023-12-15 22:46:31,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:46:31,877 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 160 [2023-12-15 22:46:31,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:31,923 INFO L225 Difference]: With dead ends: 13379 [2023-12-15 22:46:31,923 INFO L226 Difference]: Without dead ends: 9070 [2023-12-15 22:46:31,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:46:31,941 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 1307 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 539 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 1906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 539 IncrementalHoareTripleChecker+Valid, 1367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:31,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 715 Invalid, 1906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [539 Valid, 1367 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:46:31,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9070 states. [2023-12-15 22:46:32,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9070 to 8922. [2023-12-15 22:46:32,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8922 states, 7314 states have (on average 1.6406890894175554) internal successors, (12000), 7321 states have internal predecessors, (12000), 1579 states have call successors, (1579), 24 states have call predecessors, (1579), 28 states have return successors, (1774), 1578 states have call predecessors, (1774), 1578 states have call successors, (1774) [2023-12-15 22:46:32,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8922 states to 8922 states and 15353 transitions. [2023-12-15 22:46:32,393 INFO L78 Accepts]: Start accepts. Automaton has 8922 states and 15353 transitions. Word has length 160 [2023-12-15 22:46:32,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:32,394 INFO L495 AbstractCegarLoop]: Abstraction has 8922 states and 15353 transitions. [2023-12-15 22:46:32,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:32,394 INFO L276 IsEmpty]: Start isEmpty. Operand 8922 states and 15353 transitions. [2023-12-15 22:46:32,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-15 22:46:32,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:32,434 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:32,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 22:46:32,434 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:32,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:32,434 INFO L85 PathProgramCache]: Analyzing trace with hash 888592487, now seen corresponding path program 1 times [2023-12-15 22:46:32,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:32,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947738060] [2023-12-15 22:46:32,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:32,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:32,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:32,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:32,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:32,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:32,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:46:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:32,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:46:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:32,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:46:32,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:32,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-15 22:46:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:32,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:46:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:32,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-15 22:46:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:32,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 22:46:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:32,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-15 22:46:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:32,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 22:46:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:32,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-15 22:46:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:32,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-12-15 22:46:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:32,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 22:46:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:32,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:46:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:32,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-12-15 22:46:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:32,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-12-15 22:46:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:32,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-15 22:46:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:32,537 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-15 22:46:32,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:32,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947738060] [2023-12-15 22:46:32,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947738060] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:32,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:46:32,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:46:32,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815948482] [2023-12-15 22:46:32,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:32,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:46:32,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:32,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:46:32,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:46:32,539 INFO L87 Difference]: Start difference. First operand 8922 states and 15353 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:34,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:34,114 INFO L93 Difference]: Finished difference Result 23151 states and 40618 transitions. [2023-12-15 22:46:34,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:46:34,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 161 [2023-12-15 22:46:34,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:34,187 INFO L225 Difference]: With dead ends: 23151 [2023-12-15 22:46:34,187 INFO L226 Difference]: Without dead ends: 15742 [2023-12-15 22:46:34,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:46:34,219 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 1280 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 524 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 1944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 524 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:34,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 749 Invalid, 1944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [524 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:46:34,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15742 states. [2023-12-15 22:46:34,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15742 to 15594. [2023-12-15 22:46:34,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15594 states, 12783 states have (on average 1.6319330360635218) internal successors, (20861), 12790 states have internal predecessors, (20861), 2782 states have call successors, (2782), 24 states have call predecessors, (2782), 28 states have return successors, (3121), 2781 states have call predecessors, (3121), 2781 states have call successors, (3121) [2023-12-15 22:46:34,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15594 states to 15594 states and 26764 transitions. [2023-12-15 22:46:34,856 INFO L78 Accepts]: Start accepts. Automaton has 15594 states and 26764 transitions. Word has length 161 [2023-12-15 22:46:34,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:34,857 INFO L495 AbstractCegarLoop]: Abstraction has 15594 states and 26764 transitions. [2023-12-15 22:46:34,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:34,857 INFO L276 IsEmpty]: Start isEmpty. Operand 15594 states and 26764 transitions. [2023-12-15 22:46:34,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-15 22:46:34,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:34,903 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:34,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 22:46:34,903 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:34,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:34,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1102099091, now seen corresponding path program 1 times [2023-12-15 22:46:34,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:34,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068576959] [2023-12-15 22:46:34,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:34,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:35,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:35,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:35,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:35,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:46:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:35,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:46:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:35,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:46:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:35,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 22:46:35,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:35,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-15 22:46:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:35,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-15 22:46:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:35,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-15 22:46:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:35,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-15 22:46:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:35,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-15 22:46:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:35,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-15 22:46:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:35,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-15 22:46:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:35,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-15 22:46:35,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:35,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:46:35,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:35,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-12-15 22:46:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:35,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-12-15 22:46:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:35,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-15 22:46:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:35,092 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-15 22:46:35,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:35,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068576959] [2023-12-15 22:46:35,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068576959] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:35,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:46:35,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:46:35,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216924917] [2023-12-15 22:46:35,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:35,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:46:35,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:35,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:46:35,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:46:35,095 INFO L87 Difference]: Start difference. First operand 15594 states and 26764 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:36,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:36,907 INFO L93 Difference]: Finished difference Result 41318 states and 72418 transitions. [2023-12-15 22:46:36,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:46:36,907 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 162 [2023-12-15 22:46:36,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:37,013 INFO L225 Difference]: With dead ends: 41318 [2023-12-15 22:46:37,013 INFO L226 Difference]: Without dead ends: 27857 [2023-12-15 22:46:37,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:46:37,062 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 1256 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 1945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:37,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1271 Valid, 709 Invalid, 1945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [514 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 22:46:37,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27857 states. [2023-12-15 22:46:38,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27857 to 27709. [2023-12-15 22:46:38,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27709 states, 22859 states have (on average 1.6284614375082025) internal successors, (37225), 22866 states have internal predecessors, (37225), 4821 states have call successors, (4821), 24 states have call predecessors, (4821), 28 states have return successors, (5434), 4820 states have call predecessors, (5434), 4820 states have call successors, (5434) [2023-12-15 22:46:38,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27709 states to 27709 states and 47480 transitions. [2023-12-15 22:46:38,192 INFO L78 Accepts]: Start accepts. Automaton has 27709 states and 47480 transitions. Word has length 162 [2023-12-15 22:46:38,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:38,193 INFO L495 AbstractCegarLoop]: Abstraction has 27709 states and 47480 transitions. [2023-12-15 22:46:38,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:38,193 INFO L276 IsEmpty]: Start isEmpty. Operand 27709 states and 47480 transitions. [2023-12-15 22:46:38,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-15 22:46:38,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:38,267 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:38,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 22:46:38,268 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:38,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:38,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1422660169, now seen corresponding path program 1 times [2023-12-15 22:46:38,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:38,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442878132] [2023-12-15 22:46:38,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:38,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:38,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:38,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:38,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:38,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:38,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:46:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:38,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:46:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:38,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:46:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:38,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 22:46:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:38,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-15 22:46:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:38,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-15 22:46:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:38,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-15 22:46:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:38,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-15 22:46:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:38,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 22:46:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:38,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-15 22:46:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:38,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 22:46:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:38,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-12-15 22:46:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:38,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:46:38,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:38,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-12-15 22:46:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:38,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-12-15 22:46:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:38,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-12-15 22:46:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:38,375 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-15 22:46:38,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:38,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442878132] [2023-12-15 22:46:38,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442878132] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:38,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:46:38,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:46:38,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971401878] [2023-12-15 22:46:38,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:38,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:46:38,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:38,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:46:38,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:46:38,377 INFO L87 Difference]: Start difference. First operand 27709 states and 47480 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:41,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:41,037 INFO L93 Difference]: Finished difference Result 75510 states and 131607 transitions. [2023-12-15 22:46:41,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:46:41,038 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 163 [2023-12-15 22:46:41,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:41,226 INFO L225 Difference]: With dead ends: 75510 [2023-12-15 22:46:41,226 INFO L226 Difference]: Without dead ends: 50681 [2023-12-15 22:46:41,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:46:41,294 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 1244 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1463 mSolverCounterSat, 499 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 499 IncrementalHoareTripleChecker+Valid, 1463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:41,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 721 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [499 Valid, 1463 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 22:46:41,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50681 states. [2023-12-15 22:46:43,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50681 to 50533. [2023-12-15 22:46:43,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50533 states, 41968 states have (on average 1.623594166984369) internal successors, (68139), 41975 states have internal predecessors, (68139), 8536 states have call successors, (8536), 24 states have call predecessors, (8536), 28 states have return successors, (9681), 8535 states have call predecessors, (9681), 8535 states have call successors, (9681) [2023-12-15 22:46:43,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50533 states to 50533 states and 86356 transitions. [2023-12-15 22:46:43,565 INFO L78 Accepts]: Start accepts. Automaton has 50533 states and 86356 transitions. Word has length 163 [2023-12-15 22:46:43,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:46:43,565 INFO L495 AbstractCegarLoop]: Abstraction has 50533 states and 86356 transitions. [2023-12-15 22:46:43,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:43,565 INFO L276 IsEmpty]: Start isEmpty. Operand 50533 states and 86356 transitions. [2023-12-15 22:46:43,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-15 22:46:43,665 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:46:43,665 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:43,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-15 22:46:43,665 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:46:43,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:46:43,666 INFO L85 PathProgramCache]: Analyzing trace with hash -818399309, now seen corresponding path program 1 times [2023-12-15 22:46:43,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:46:43,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777604291] [2023-12-15 22:46:43,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:46:43,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:46:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:43,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:46:43,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:43,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:46:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:43,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 22:46:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:43,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:46:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:43,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:46:43,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:43,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-15 22:46:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:43,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:46:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:43,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 22:46:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:43,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-15 22:46:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:43,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 22:46:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:43,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 22:46:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:43,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-15 22:46:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:43,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-15 22:46:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:43,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-15 22:46:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:43,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-15 22:46:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:43,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-15 22:46:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:43,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-12-15 22:46:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:43,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-12-15 22:46:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:43,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-12-15 22:46:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:46:43,775 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-15 22:46:43,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:46:43,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777604291] [2023-12-15 22:46:43,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777604291] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:46:43,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:46:43,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 22:46:43,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776015867] [2023-12-15 22:46:43,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:46:43,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 22:46:43,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:46:43,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 22:46:43,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:46:43,778 INFO L87 Difference]: Start difference. First operand 50533 states and 86356 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-15 22:46:47,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:46:47,136 INFO L93 Difference]: Finished difference Result 94257 states and 164770 transitions. [2023-12-15 22:46:47,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:46:47,136 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 164 [2023-12-15 22:46:47,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:46:47,645 INFO L225 Difference]: With dead ends: 94257 [2023-12-15 22:46:47,645 INFO L226 Difference]: Without dead ends: 94061 [2023-12-15 22:46:47,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:46:47,678 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 1297 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 535 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 1914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 535 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:46:47,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 709 Invalid, 1914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [535 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 22:46:47,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94061 states. [2023-12-15 22:46:50,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94061 to 93913. [2023-12-15 22:46:50,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93913 states, 78549 states have (on average 1.6172070936612815) internal successors, (127030), 78556 states have internal predecessors, (127030), 15335 states have call successors, (15335), 24 states have call predecessors, (15335), 28 states have return successors, (17526), 15334 states have call predecessors, (17526), 15334 states have call successors, (17526) [2023-12-15 22:46:51,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93913 states to 93913 states and 159891 transitions. [2023-12-15 22:46:51,401 INFO L78 Accepts]: Start accepts. Automaton has 93913 states and 159891 transitions. Word has length 164 Received shutdown request... [2023-12-15 22:46:51,433 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:46:51,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-15 22:46:51,434 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Accepts. [2023-12-15 22:46:51,437 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:46:51,450 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:46:51,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:46:51 BoogieIcfgContainer [2023-12-15 22:46:51,454 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:46:51,454 INFO L158 Benchmark]: Toolchain (without parser) took 50308.53ms. Allocated memory was 290.5MB in the beginning and 5.2GB in the end (delta: 4.9GB). Free memory was 234.2MB in the beginning and 4.3GB in the end (delta: -4.1GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2023-12-15 22:46:51,454 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 210.8MB. Free memory is still 157.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:46:51,454 INFO L158 Benchmark]: CACSL2BoogieTranslator took 655.83ms. Allocated memory is still 290.5MB. Free memory was 233.7MB in the beginning and 191.8MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2023-12-15 22:46:51,454 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.83ms. Allocated memory is still 290.5MB. Free memory was 191.8MB in the beginning and 185.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-15 22:46:51,455 INFO L158 Benchmark]: Boogie Preprocessor took 86.95ms. Allocated memory is still 290.5MB. Free memory was 185.5MB in the beginning and 178.7MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-15 22:46:51,455 INFO L158 Benchmark]: RCFGBuilder took 1074.79ms. Allocated memory is still 290.5MB. Free memory was 178.7MB in the beginning and 182.0MB in the end (delta: -3.4MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. [2023-12-15 22:46:51,455 INFO L158 Benchmark]: TraceAbstraction took 48390.43ms. Allocated memory was 290.5MB in the beginning and 5.2GB in the end (delta: 4.9GB). Free memory was 181.5MB in the beginning and 4.3GB in the end (delta: -4.1GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2023-12-15 22:46:51,458 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 22:46:51,469 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 210.8MB. Free memory is still 157.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 655.83ms. Allocated memory is still 290.5MB. Free memory was 233.7MB in the beginning and 191.8MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 93.83ms. Allocated memory is still 290.5MB. Free memory was 191.8MB in the beginning and 185.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 86.95ms. Allocated memory is still 290.5MB. Free memory was 185.5MB in the beginning and 178.7MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1074.79ms. Allocated memory is still 290.5MB. Free memory was 178.7MB in the beginning and 182.0MB in the end (delta: -3.4MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. * TraceAbstraction took 48390.43ms. Allocated memory was 290.5MB in the beginning and 5.2GB in the end (delta: 4.9GB). Free memory was 181.5MB in the beginning and 4.3GB in the end (delta: -4.1GB). Peak memory consumption was 1.2GB. 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,"Test.i","") [48] - GenericResultAtLocation [Line: 363]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [363] - GenericResultAtLocation [Line: 398]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [398] - GenericResultAtLocation [Line: 810]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [810] - GenericResultAtLocation [Line: 1882]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1882] - GenericResultAtLocation [Line: 2098]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [2098] - GenericResultAtLocation [Line: 2130]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2130] - GenericResultAtLocation [Line: 2496]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2496] - GenericResultAtLocation [Line: 2513]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2513] - GenericResultAtLocation [Line: 2869]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2869] - GenericResultAtLocation [Line: 2878]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2878] * 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: 2874]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2874). Cancelled while executing Accepts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 25 procedures, 344 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 48.3s, OverallIterations: 20, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.4s, AutomataDifference: 31.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19456 SdHoareTripleChecker+Valid, 22.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19240 mSDsluCounter, 19386 SdHoareTripleChecker+Invalid, 18.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14408 mSDsCounter, 7705 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30023 IncrementalHoareTripleChecker+Invalid, 37728 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7705 mSolverCounterUnsat, 4978 mSDtfsCounter, 30023 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2007 GetRequests, 1760 SyntacticMatches, 0 SemanticMatches, 247 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50533occurred in iteration=19, InterpolantAutomatonStates: 172, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.2s AutomataMinimizationTime, 20 MinimizatonAttempts, 2215 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 3883 NumberOfCodeBlocks, 3883 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 4005 ConstructedInterpolants, 0 QuantifiedInterpolants, 5925 SizeOfPredicates, 8 NumberOfNonLiveVariables, 7107 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 27 InterpolantComputations, 19 PerfectInterpolantSequences, 1139/1163 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