/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 05:33:32,372 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 05:33:32,406 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 05:33:32,409 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 05:33:32,409 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 05:33:32,433 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 05:33:32,434 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 05:33:32,434 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 05:33:32,435 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 05:33:32,435 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 05:33:32,435 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 05:33:32,435 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 05:33:32,436 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 05:33:32,436 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 05:33:32,436 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 05:33:32,436 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 05:33:32,437 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 05:33:32,437 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 05:33:32,437 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 05:33:32,437 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 05:33:32,438 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 05:33:32,440 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 05:33:32,440 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 05:33:32,440 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 05:33:32,443 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 05:33:32,443 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 05:33:32,443 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 05:33:32,444 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 05:33:32,444 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 05:33:32,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 05:33:32,445 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 05:33:32,445 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 05:33:32,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:33:32,446 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 05:33:32,446 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 05:33:32,446 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 05:33:32,446 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 05:33:32,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 05:33:32,446 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 05:33:32,446 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 05:33:32,446 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 05:33:32,447 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 05:33:32,447 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 05:33:32,447 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 05:33:32,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 05:33:32,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 05:33:32,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 05:33:32,659 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 05:33:32,659 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 05:33:32,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product31.cil.c [2023-12-16 05:33:33,690 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 05:33:33,920 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 05:33:33,921 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product31.cil.c [2023-12-16 05:33:33,949 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ff712049/47fec069c3d54db286790c4d41b5fb94/FLAG503823bba [2023-12-16 05:33:33,958 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ff712049/47fec069c3d54db286790c4d41b5fb94 [2023-12-16 05:33:33,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 05:33:33,961 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 05:33:33,962 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 05:33:33,962 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 05:33:33,969 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 05:33:33,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:33:33" (1/1) ... [2023-12-16 05:33:33,970 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@342e44a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:33:33, skipping insertion in model container [2023-12-16 05:33:33,970 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:33:33" (1/1) ... [2023-12-16 05:33:34,018 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 05:33:34,434 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_spec1_product31.cil.c[64142,64155] [2023-12-16 05:33:34,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:33:34,450 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 05:33:34,456 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2023-12-16 05:33:34,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [66] [2023-12-16 05:33:34,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [108] [2023-12-16 05:33:34,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [489] [2023-12-16 05:33:34,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [855] [2023-12-16 05:33:34,458 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [992] [2023-12-16 05:33:34,458 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1217] [2023-12-16 05:33:34,458 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1255] [2023-12-16 05:33:34,459 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1537] [2023-12-16 05:33:34,459 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1934] [2023-12-16 05:33:34,459 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3001] [2023-12-16 05:33:34,539 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_spec1_product31.cil.c[64142,64155] [2023-12-16 05:33:34,540 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:33:34,563 INFO L206 MainTranslator]: Completed translation [2023-12-16 05:33:34,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:33:34 WrapperNode [2023-12-16 05:33:34,565 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 05:33:34,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 05:33:34,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 05:33:34,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 05:33:34,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:33:34" (1/1) ... [2023-12-16 05:33:34,589 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:33:34" (1/1) ... [2023-12-16 05:33:34,636 INFO L138 Inliner]: procedures = 131, calls = 204, calls flagged for inlining = 61, calls inlined = 56, statements flattened = 1009 [2023-12-16 05:33:34,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 05:33:34,639 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 05:33:34,640 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 05:33:34,640 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 05:33:34,648 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:33:34" (1/1) ... [2023-12-16 05:33:34,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:33:34" (1/1) ... [2023-12-16 05:33:34,653 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:33:34" (1/1) ... [2023-12-16 05:33:34,672 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-12-16 05:33:34,672 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:33:34" (1/1) ... [2023-12-16 05:33:34,672 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:33:34" (1/1) ... [2023-12-16 05:33:34,685 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:33:34" (1/1) ... [2023-12-16 05:33:34,699 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:33:34" (1/1) ... [2023-12-16 05:33:34,702 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:33:34" (1/1) ... [2023-12-16 05:33:34,708 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:33:34" (1/1) ... [2023-12-16 05:33:34,739 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 05:33:34,739 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 05:33:34,740 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 05:33:34,740 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 05:33:34,740 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:33:34" (1/1) ... [2023-12-16 05:33:34,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:33:34,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:33:34,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 05:33:34,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 05:33:34,794 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-16 05:33:34,794 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-16 05:33:34,794 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-16 05:33:34,794 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-16 05:33:34,794 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-16 05:33:34,794 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-16 05:33:34,795 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-16 05:33:34,795 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-16 05:33:34,795 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-16 05:33:34,795 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-16 05:33:34,795 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-16 05:33:34,795 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-16 05:33:34,795 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-16 05:33:34,795 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-16 05:33:34,796 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-16 05:33:34,796 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-16 05:33:34,796 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-16 05:33:34,798 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-16 05:33:34,798 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-16 05:33:34,798 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-16 05:33:34,798 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-16 05:33:34,798 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-16 05:33:34,798 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-16 05:33:34,798 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-16 05:33:34,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 05:33:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-16 05:33:34,799 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-16 05:33:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-16 05:33:34,799 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-16 05:33:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-16 05:33:34,799 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-16 05:33:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-16 05:33:34,799 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-16 05:33:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-16 05:33:34,799 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-16 05:33:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-16 05:33:34,799 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-16 05:33:34,799 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-16 05:33:34,799 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-16 05:33:34,800 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-16 05:33:34,800 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-16 05:33:34,800 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-16 05:33:34,800 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-16 05:33:34,800 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-16 05:33:34,800 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-16 05:33:34,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 05:33:34,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 05:33:34,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-16 05:33:34,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-16 05:33:34,800 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-16 05:33:34,800 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-16 05:33:34,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 05:33:34,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 05:33:34,996 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 05:33:34,998 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 05:33:35,672 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 05:33:35,729 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 05:33:35,729 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 05:33:35,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:33:35 BoogieIcfgContainer [2023-12-16 05:33:35,729 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 05:33:35,731 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 05:33:35,731 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 05:33:35,733 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 05:33:35,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:33:33" (1/3) ... [2023-12-16 05:33:35,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44146ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:33:35, skipping insertion in model container [2023-12-16 05:33:35,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:33:34" (2/3) ... [2023-12-16 05:33:35,735 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44146ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:33:35, skipping insertion in model container [2023-12-16 05:33:35,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:33:35" (3/3) ... [2023-12-16 05:33:35,736 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product31.cil.c [2023-12-16 05:33:35,748 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 05:33:35,749 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 05:33:35,800 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 05:33:35,807 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;@46a0310b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 05:33:35,807 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 05:33:35,818 INFO L276 IsEmpty]: Start isEmpty. Operand has 338 states, 254 states have (on average 1.562992125984252) internal successors, (397), 258 states have internal predecessors, (397), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-16 05:33:35,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-16 05:33:35,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:33:35,842 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:33:35,842 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:33:35,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:33:35,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1921350872, now seen corresponding path program 1 times [2023-12-16 05:33:35,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:33:35,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618112835] [2023-12-16 05:33:35,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:35,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:33:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:36,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:33:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:36,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:33:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:36,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:33:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:36,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:33:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:36,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:33:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:36,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:33:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:36,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 05:33:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:36,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-16 05:33:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:36,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:33:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:36,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-16 05:33:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:36,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 05:33:36,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:36,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 05:33:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:36,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 05:33:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:36,389 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 05:33:36,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:33:36,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618112835] [2023-12-16 05:33:36,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618112835] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:33:36,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971737445] [2023-12-16 05:33:36,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:36,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:33:36,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:33:36,394 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:33:36,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 05:33:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:36,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 05:33:36,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:33:36,699 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 05:33:36,699 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:33:36,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971737445] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:33:36,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:33:36,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-12-16 05:33:36,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307988260] [2023-12-16 05:33:36,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:33:36,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 05:33:36,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:33:36,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 05:33:36,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:33:36,727 INFO L87 Difference]: Start difference. First operand has 338 states, 254 states have (on average 1.562992125984252) internal successors, (397), 258 states have internal predecessors, (397), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:33:36,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:33:36,798 INFO L93 Difference]: Finished difference Result 531 states and 793 transitions. [2023-12-16 05:33:36,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 05:33:36,800 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 95 [2023-12-16 05:33:36,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:33:36,809 INFO L225 Difference]: With dead ends: 531 [2023-12-16 05:33:36,809 INFO L226 Difference]: Without dead ends: 335 [2023-12-16 05:33:36,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:33:36,822 INFO L413 NwaCegarLoop]: 495 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, 495 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:33:36,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 495 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:33:36,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2023-12-16 05:33:36,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2023-12-16 05:33:36,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 252 states have (on average 1.5476190476190477) internal successors, (390), 255 states have internal predecessors, (390), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-16 05:33:36,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 507 transitions. [2023-12-16 05:33:36,873 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 507 transitions. Word has length 95 [2023-12-16 05:33:36,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:33:36,874 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 507 transitions. [2023-12-16 05:33:36,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:33:36,874 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 507 transitions. [2023-12-16 05:33:36,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 05:33:36,882 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:33:36,882 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:33:36,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 05:33:37,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-16 05:33:37,083 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:33:37,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:33:37,084 INFO L85 PathProgramCache]: Analyzing trace with hash -950275068, now seen corresponding path program 1 times [2023-12-16 05:33:37,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:33:37,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769486802] [2023-12-16 05:33:37,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:37,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:33:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:37,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:33:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:37,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:33:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:37,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:33:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:37,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:33:37,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:37,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:33:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:37,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:33:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:37,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 05:33:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:37,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-16 05:33:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:37,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 05:33:37,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:37,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-16 05:33:37,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:37,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 05:33:37,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:37,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 05:33:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:37,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 05:33:37,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:37,314 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 05:33:37,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:33:37,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769486802] [2023-12-16 05:33:37,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769486802] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:33:37,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238067443] [2023-12-16 05:33:37,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:37,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:33:37,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:33:37,325 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:33:37,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 05:33:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:37,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 05:33:37,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:33:37,596 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 05:33:37,597 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:33:37,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238067443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:33:37,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:33:37,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-16 05:33:37,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857043960] [2023-12-16 05:33:37,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:33:37,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 05:33:37,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:33:37,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 05:33:37,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:33:37,599 INFO L87 Difference]: Start difference. First operand 335 states and 507 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:33:37,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:33:37,636 INFO L93 Difference]: Finished difference Result 527 states and 780 transitions. [2023-12-16 05:33:37,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 05:33:37,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 96 [2023-12-16 05:33:37,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:33:37,640 INFO L225 Difference]: With dead ends: 527 [2023-12-16 05:33:37,640 INFO L226 Difference]: Without dead ends: 337 [2023-12-16 05:33:37,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:33:37,642 INFO L413 NwaCegarLoop]: 492 mSDtfsCounter, 0 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:33:37,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 983 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:33:37,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2023-12-16 05:33:37,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2023-12-16 05:33:37,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 254 states have (on average 1.5433070866141732) internal successors, (392), 257 states have internal predecessors, (392), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-16 05:33:37,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 509 transitions. [2023-12-16 05:33:37,675 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 509 transitions. Word has length 96 [2023-12-16 05:33:37,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:33:37,675 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 509 transitions. [2023-12-16 05:33:37,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:33:37,675 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 509 transitions. [2023-12-16 05:33:37,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 05:33:37,678 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:33:37,678 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:33:37,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 05:33:37,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-16 05:33:37,890 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:33:37,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:33:37,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1736048719, now seen corresponding path program 1 times [2023-12-16 05:33:37,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:33:37,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290643840] [2023-12-16 05:33:37,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:37,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:33:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:33:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:33:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:33:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:33:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:33:38,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:33:38,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-16 05:33:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 05:33:38,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-16 05:33:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 05:33:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 05:33:38,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 05:33:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 05:33:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,133 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-16 05:33:38,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:33:38,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290643840] [2023-12-16 05:33:38,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290643840] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:33:38,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119500990] [2023-12-16 05:33:38,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:38,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:33:38,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:33:38,135 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:33:38,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 05:33:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:33:38,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:33:38,385 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 05:33:38,386 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:33:38,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119500990] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:33:38,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:33:38,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-12-16 05:33:38,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409578538] [2023-12-16 05:33:38,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:33:38,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 05:33:38,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:33:38,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 05:33:38,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:33:38,388 INFO L87 Difference]: Start difference. First operand 337 states and 509 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:33:38,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:33:38,447 INFO L93 Difference]: Finished difference Result 704 states and 1077 transitions. [2023-12-16 05:33:38,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 05:33:38,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2023-12-16 05:33:38,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:33:38,451 INFO L225 Difference]: With dead ends: 704 [2023-12-16 05:33:38,452 INFO L226 Difference]: Without dead ends: 389 [2023-12-16 05:33:38,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:33:38,455 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 102 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:33:38,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 952 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:33:38,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2023-12-16 05:33:38,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 384. [2023-12-16 05:33:38,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 290 states have (on average 1.5586206896551724) internal successors, (452), 293 states have internal predecessors, (452), 70 states have call successors, (70), 23 states have call predecessors, (70), 23 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-16 05:33:38,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 591 transitions. [2023-12-16 05:33:38,471 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 591 transitions. Word has length 101 [2023-12-16 05:33:38,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:33:38,471 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 591 transitions. [2023-12-16 05:33:38,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:33:38,471 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 591 transitions. [2023-12-16 05:33:38,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 05:33:38,473 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:33:38,473 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:33:38,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 05:33:38,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:33:38,682 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:33:38,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:33:38,683 INFO L85 PathProgramCache]: Analyzing trace with hash -969168339, now seen corresponding path program 1 times [2023-12-16 05:33:38,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:33:38,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537461201] [2023-12-16 05:33:38,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:38,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:33:38,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:33:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:33:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:33:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 05:33:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 05:33:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 05:33:38,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-16 05:33:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-16 05:33:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 05:33:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 05:33:38,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 05:33:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 05:33:38,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-16 05:33:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:38,849 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-16 05:33:38,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:33:38,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537461201] [2023-12-16 05:33:38,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537461201] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:33:38,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027325106] [2023-12-16 05:33:38,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:38,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:33:38,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:33:38,851 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:33:38,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 05:33:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:39,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 05:33:39,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:33:39,115 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 05:33:39,115 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:33:39,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027325106] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:33:39,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:33:39,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-12-16 05:33:39,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223093720] [2023-12-16 05:33:39,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:33:39,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:33:39,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:33:39,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:33:39,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:33:39,117 INFO L87 Difference]: Start difference. First operand 384 states and 591 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 05:33:39,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:33:39,219 INFO L93 Difference]: Finished difference Result 763 states and 1176 transitions. [2023-12-16 05:33:39,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:33:39,220 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 102 [2023-12-16 05:33:39,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:33:39,222 INFO L225 Difference]: With dead ends: 763 [2023-12-16 05:33:39,222 INFO L226 Difference]: Without dead ends: 386 [2023-12-16 05:33:39,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:33:39,223 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 8 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:33:39,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1921 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:33:39,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2023-12-16 05:33:39,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2023-12-16 05:33:39,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 291 states have (on average 1.556701030927835) internal successors, (453), 295 states have internal predecessors, (453), 70 states have call successors, (70), 23 states have call predecessors, (70), 24 states have return successors, (71), 69 states have call predecessors, (71), 69 states have call successors, (71) [2023-12-16 05:33:39,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 594 transitions. [2023-12-16 05:33:39,235 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 594 transitions. Word has length 102 [2023-12-16 05:33:39,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:33:39,236 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 594 transitions. [2023-12-16 05:33:39,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 05:33:39,236 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 594 transitions. [2023-12-16 05:33:39,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-16 05:33:39,237 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:33:39,238 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:33:39,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 05:33:39,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:33:39,444 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:33:39,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:33:39,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1952636339, now seen corresponding path program 1 times [2023-12-16 05:33:39,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:33:39,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900902243] [2023-12-16 05:33:39,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:39,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:33:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:39,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:33:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:39,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:33:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:39,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:33:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:39,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:33:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:39,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-16 05:33:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:39,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-12-16 05:33:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:39,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 05:33:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:39,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:33:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:39,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-16 05:33:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:39,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:33:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:39,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 05:33:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:39,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 05:33:39,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:39,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 05:33:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:39,631 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 05:33:39,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:33:39,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900902243] [2023-12-16 05:33:39,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900902243] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:33:39,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347469014] [2023-12-16 05:33:39,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:39,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:33:39,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:33:39,633 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:33:39,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 05:33:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:39,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 05:33:39,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:33:39,897 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 05:33:39,897 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:33:39,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347469014] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:33:39,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:33:39,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-12-16 05:33:39,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968469703] [2023-12-16 05:33:39,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:33:39,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:33:39,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:33:39,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:33:39,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-16 05:33:39,899 INFO L87 Difference]: Start difference. First operand 386 states and 594 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 05:33:39,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:33:39,980 INFO L93 Difference]: Finished difference Result 765 states and 1181 transitions. [2023-12-16 05:33:39,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:33:39,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 103 [2023-12-16 05:33:39,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:33:39,983 INFO L225 Difference]: With dead ends: 765 [2023-12-16 05:33:39,983 INFO L226 Difference]: Without dead ends: 388 [2023-12-16 05:33:39,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-12-16 05:33:39,984 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 8 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1907 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 [2023-12-16 05:33:39,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1907 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:33:39,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2023-12-16 05:33:40,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2023-12-16 05:33:40,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 292 states have (on average 1.5547945205479452) internal successors, (454), 297 states have internal predecessors, (454), 70 states have call successors, (70), 23 states have call predecessors, (70), 25 states have return successors, (76), 69 states have call predecessors, (76), 69 states have call successors, (76) [2023-12-16 05:33:40,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 600 transitions. [2023-12-16 05:33:40,004 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 600 transitions. Word has length 103 [2023-12-16 05:33:40,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:33:40,005 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 600 transitions. [2023-12-16 05:33:40,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 05:33:40,005 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 600 transitions. [2023-12-16 05:33:40,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 05:33:40,006 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:33:40,006 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:33:40,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 05:33:40,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:33:40,215 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:33:40,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:33:40,215 INFO L85 PathProgramCache]: Analyzing trace with hash -125464356, now seen corresponding path program 1 times [2023-12-16 05:33:40,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:33:40,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203050012] [2023-12-16 05:33:40,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:40,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:33:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:40,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:33:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:40,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:33:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:40,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:33:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:40,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:33:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:40,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:33:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:40,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-16 05:33:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:40,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 05:33:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:40,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 05:33:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:40,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-16 05:33:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:40,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 05:33:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:40,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-16 05:33:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:40,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 05:33:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:40,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-16 05:33:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:40,370 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-16 05:33:40,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:33:40,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203050012] [2023-12-16 05:33:40,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203050012] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:33:40,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:33:40,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 05:33:40,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587651374] [2023-12-16 05:33:40,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:33:40,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 05:33:40,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:33:40,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 05:33:40,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:33:40,372 INFO L87 Difference]: Start difference. First operand 388 states and 600 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 05:33:42,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:33:42,209 INFO L93 Difference]: Finished difference Result 901 states and 1406 transitions. [2023-12-16 05:33:42,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 05:33:42,209 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 104 [2023-12-16 05:33:42,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:33:42,212 INFO L225 Difference]: With dead ends: 901 [2023-12-16 05:33:42,212 INFO L226 Difference]: Without dead ends: 532 [2023-12-16 05:33:42,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 05:33:42,214 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 1108 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2734 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 3119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 2734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 05:33:42,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 963 Invalid, 3119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 2734 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 05:33:42,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-12-16 05:33:42,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 388. [2023-12-16 05:33:42,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 292 states have (on average 1.5547945205479452) internal successors, (454), 297 states have internal predecessors, (454), 70 states have call successors, (70), 23 states have call predecessors, (70), 25 states have return successors, (75), 69 states have call predecessors, (75), 69 states have call successors, (75) [2023-12-16 05:33:42,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 599 transitions. [2023-12-16 05:33:42,234 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 599 transitions. Word has length 104 [2023-12-16 05:33:42,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:33:42,234 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 599 transitions. [2023-12-16 05:33:42,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 05:33:42,235 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 599 transitions. [2023-12-16 05:33:42,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-16 05:33:42,236 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:33:42,236 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:33:42,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 05:33:42,236 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:33:42,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:33:42,237 INFO L85 PathProgramCache]: Analyzing trace with hash 711121412, now seen corresponding path program 2 times [2023-12-16 05:33:42,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:33:42,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131912669] [2023-12-16 05:33:42,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:42,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:33:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:42,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:33:42,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:42,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:33:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:42,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:33:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:42,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:33:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:42,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:33:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:42,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 05:33:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:42,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-16 05:33:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:42,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-12-16 05:33:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:42,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-16 05:33:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:42,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 05:33:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:42,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 05:33:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:42,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:33:42,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:42,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-16 05:33:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:42,393 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-16 05:33:42,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:33:42,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131912669] [2023-12-16 05:33:42,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131912669] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:33:42,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:33:42,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 05:33:42,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537746899] [2023-12-16 05:33:42,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:33:42,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 05:33:42,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:33:42,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 05:33:42,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:33:42,395 INFO L87 Difference]: Start difference. First operand 388 states and 599 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 05:33:43,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:33:43,942 INFO L93 Difference]: Finished difference Result 903 states and 1409 transitions. [2023-12-16 05:33:43,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 05:33:43,942 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 105 [2023-12-16 05:33:43,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:33:43,948 INFO L225 Difference]: With dead ends: 903 [2023-12-16 05:33:43,948 INFO L226 Difference]: Without dead ends: 534 [2023-12-16 05:33:43,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 05:33:43,950 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 1103 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2740 mSolverCounterSat, 386 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 3126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 2740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 05:33:43,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1104 Valid, 963 Invalid, 3126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [386 Valid, 2740 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 05:33:43,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-16 05:33:43,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 390. [2023-12-16 05:33:43,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 293 states have (on average 1.552901023890785) internal successors, (455), 299 states have internal predecessors, (455), 70 states have call successors, (70), 23 states have call predecessors, (70), 26 states have return successors, (77), 69 states have call predecessors, (77), 69 states have call successors, (77) [2023-12-16 05:33:43,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 602 transitions. [2023-12-16 05:33:43,973 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 602 transitions. Word has length 105 [2023-12-16 05:33:43,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:33:43,974 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 602 transitions. [2023-12-16 05:33:43,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2023-12-16 05:33:43,974 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 602 transitions. [2023-12-16 05:33:43,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-16 05:33:43,975 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:33:43,975 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:33:43,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 05:33:43,976 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:33:43,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:33:43,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1201433737, now seen corresponding path program 1 times [2023-12-16 05:33:43,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:33:43,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634751909] [2023-12-16 05:33:43,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:43,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:33:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:44,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:33:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:44,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:33:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:44,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:33:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:44,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:33:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:44,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:33:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:44,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:33:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:44,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 05:33:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:44,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-16 05:33:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:44,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:33:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:44,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 05:33:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:44,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 05:33:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:44,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 05:33:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:44,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 05:33:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:44,142 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 05:33:44,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:33:44,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634751909] [2023-12-16 05:33:44,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634751909] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:33:44,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:33:44,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 05:33:44,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735045418] [2023-12-16 05:33:44,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:33:44,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 05:33:44,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:33:44,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 05:33:44,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:33:44,144 INFO L87 Difference]: Start difference. First operand 390 states and 602 transitions. Second operand has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-16 05:33:46,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:33:46,482 INFO L93 Difference]: Finished difference Result 901 states and 1404 transitions. [2023-12-16 05:33:46,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 05:33:46,483 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 106 [2023-12-16 05:33:46,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:33:46,486 INFO L225 Difference]: With dead ends: 901 [2023-12-16 05:33:46,486 INFO L226 Difference]: Without dead ends: 534 [2023-12-16 05:33:46,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-16 05:33:46,488 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 1113 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 4557 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 4946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 4557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:33:46,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1114 Valid, 1332 Invalid, 4946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 4557 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 05:33:46,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2023-12-16 05:33:46,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 390. [2023-12-16 05:33:46,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 293 states have (on average 1.552901023890785) internal successors, (455), 299 states have internal predecessors, (455), 70 states have call successors, (70), 23 states have call predecessors, (70), 26 states have return successors, (76), 69 states have call predecessors, (76), 69 states have call successors, (76) [2023-12-16 05:33:46,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 601 transitions. [2023-12-16 05:33:46,514 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 601 transitions. Word has length 106 [2023-12-16 05:33:46,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:33:46,514 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 601 transitions. [2023-12-16 05:33:46,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-16 05:33:46,515 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 601 transitions. [2023-12-16 05:33:46,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-16 05:33:46,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:33:46,516 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:33:46,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 05:33:46,517 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:33:46,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:33:46,517 INFO L85 PathProgramCache]: Analyzing trace with hash -2061833220, now seen corresponding path program 2 times [2023-12-16 05:33:46,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:33:46,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669347330] [2023-12-16 05:33:46,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:46,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:33:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:46,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:33:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:46,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:33:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:46,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:33:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:46,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:33:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:46,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:33:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:46,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:33:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:46,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-12-16 05:33:46,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:46,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-16 05:33:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:46,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 05:33:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:46,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 05:33:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:46,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 05:33:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:46,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 05:33:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:46,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-16 05:33:46,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:46,713 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 05:33:46,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:33:46,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669347330] [2023-12-16 05:33:46,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669347330] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:33:46,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:33:46,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 05:33:46,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292291478] [2023-12-16 05:33:46,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:33:46,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 05:33:46,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:33:46,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 05:33:46,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-12-16 05:33:46,715 INFO L87 Difference]: Start difference. First operand 390 states and 601 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-16 05:33:49,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:33:49,012 INFO L93 Difference]: Finished difference Result 903 states and 1410 transitions. [2023-12-16 05:33:49,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 05:33:49,013 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 107 [2023-12-16 05:33:49,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:33:49,015 INFO L225 Difference]: With dead ends: 903 [2023-12-16 05:33:49,016 INFO L226 Difference]: Without dead ends: 536 [2023-12-16 05:33:49,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-12-16 05:33:49,017 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 1108 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 4594 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 4982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 4594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:33:49,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 1332 Invalid, 4982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 4594 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 05:33:49,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2023-12-16 05:33:49,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 392. [2023-12-16 05:33:49,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 294 states have (on average 1.5510204081632653) internal successors, (456), 301 states have internal predecessors, (456), 70 states have call successors, (70), 23 states have call predecessors, (70), 27 states have return successors, (81), 69 states have call predecessors, (81), 69 states have call successors, (81) [2023-12-16 05:33:49,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 607 transitions. [2023-12-16 05:33:49,036 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 607 transitions. Word has length 107 [2023-12-16 05:33:49,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:33:49,037 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 607 transitions. [2023-12-16 05:33:49,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2023-12-16 05:33:49,037 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 607 transitions. [2023-12-16 05:33:49,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 05:33:49,038 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:33:49,038 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:33:49,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 05:33:49,039 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:33:49,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:33:49,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1567920626, now seen corresponding path program 1 times [2023-12-16 05:33:49,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:33:49,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255871049] [2023-12-16 05:33:49,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:49,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:33:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:49,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:33:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:49,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:33:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:49,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:33:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:49,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:33:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:49,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:33:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:49,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:33:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:49,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-16 05:33:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:49,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-16 05:33:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:49,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 05:33:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:49,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 05:33:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:49,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-16 05:33:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:49,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 05:33:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:49,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-16 05:33:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:49,167 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:33:49,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:33:49,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255871049] [2023-12-16 05:33:49,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255871049] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:33:49,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065410517] [2023-12-16 05:33:49,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:49,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:33:49,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:33:49,169 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 05:33:49,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 05:33:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:49,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 05:33:49,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:33:49,406 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:33:49,406 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 05:33:49,470 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:33:49,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065410517] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 05:33:49,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 05:33:49,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2023-12-16 05:33:49,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279255337] [2023-12-16 05:33:49,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 05:33:49,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 05:33:49,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:33:49,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 05:33:49,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-16 05:33:49,473 INFO L87 Difference]: Start difference. First operand 392 states and 607 transitions. Second operand has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 7 states have internal predecessors, (102), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 05:33:51,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:33:51,333 INFO L93 Difference]: Finished difference Result 1056 states and 1722 transitions. [2023-12-16 05:33:51,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 05:33:51,334 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 7 states have internal predecessors, (102), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 108 [2023-12-16 05:33:51,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:33:51,338 INFO L225 Difference]: With dead ends: 1056 [2023-12-16 05:33:51,338 INFO L226 Difference]: Without dead ends: 866 [2023-12-16 05:33:51,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-12-16 05:33:51,340 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 1490 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 3447 mSolverCounterSat, 528 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 3975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 528 IncrementalHoareTripleChecker+Valid, 3447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 05:33:51,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1535 Valid, 1362 Invalid, 3975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [528 Valid, 3447 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 05:33:51,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2023-12-16 05:33:51,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 707. [2023-12-16 05:33:51,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 545 states have (on average 1.61651376146789) internal successors, (881), 552 states have internal predecessors, (881), 134 states have call successors, (134), 23 states have call predecessors, (134), 27 states have return successors, (155), 133 states have call predecessors, (155), 133 states have call successors, (155) [2023-12-16 05:33:51,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 1170 transitions. [2023-12-16 05:33:51,390 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 1170 transitions. Word has length 108 [2023-12-16 05:33:51,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:33:51,390 INFO L495 AbstractCegarLoop]: Abstraction has 707 states and 1170 transitions. [2023-12-16 05:33:51,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 7 states have internal predecessors, (102), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 05:33:51,391 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 1170 transitions. [2023-12-16 05:33:51,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 05:33:51,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:33:51,393 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:33:51,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 05:33:51,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:33:51,612 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:33:51,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:33:51,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1058713771, now seen corresponding path program 1 times [2023-12-16 05:33:51,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:33:51,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845719936] [2023-12-16 05:33:51,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:51,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:33:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:51,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:33:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:51,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:33:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:51,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:33:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:51,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:33:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:51,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:33:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:51,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:33:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:51,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-12-16 05:33:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:51,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:33:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:51,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 05:33:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:51,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-16 05:33:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:51,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 05:33:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:51,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-16 05:33:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:51,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-16 05:33:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:51,680 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:33:51,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:33:51,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845719936] [2023-12-16 05:33:51,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845719936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:33:51,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:33:51,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:33:51,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352292968] [2023-12-16 05:33:51,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:33:51,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:33:51,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:33:51,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:33:51,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:33:51,682 INFO L87 Difference]: Start difference. First operand 707 states and 1170 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:33:52,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:33:52,938 INFO L93 Difference]: Finished difference Result 1815 states and 3071 transitions. [2023-12-16 05:33:52,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:33:52,938 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2023-12-16 05:33:52,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:33:52,943 INFO L225 Difference]: With dead ends: 1815 [2023-12-16 05:33:52,943 INFO L226 Difference]: Without dead ends: 1168 [2023-12-16 05:33:52,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:33:52,947 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 1197 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:33:52,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 750 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 1586 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 05:33:52,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2023-12-16 05:33:52,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1019. [2023-12-16 05:33:52,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 793 states have (on average 1.630517023959647) internal successors, (1293), 800 states have internal predecessors, (1293), 198 states have call successors, (198), 23 states have call predecessors, (198), 27 states have return successors, (229), 197 states have call predecessors, (229), 197 states have call successors, (229) [2023-12-16 05:33:52,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1720 transitions. [2023-12-16 05:33:52,981 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1720 transitions. Word has length 114 [2023-12-16 05:33:52,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:33:52,982 INFO L495 AbstractCegarLoop]: Abstraction has 1019 states and 1720 transitions. [2023-12-16 05:33:52,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:33:52,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1720 transitions. [2023-12-16 05:33:52,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 05:33:52,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:33:52,986 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:33:52,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 05:33:52,986 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:33:52,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:33:52,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1227501226, now seen corresponding path program 1 times [2023-12-16 05:33:52,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:33:52,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335860569] [2023-12-16 05:33:52,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:52,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:33:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:53,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:33:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:53,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:33:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:53,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:33:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:53,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:33:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:53,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:33:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:53,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:33:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:53,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 05:33:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:53,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 05:33:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:53,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 05:33:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:53,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 05:33:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:53,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 05:33:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:53,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-12-16 05:33:53,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:53,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-16 05:33:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:53,091 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:33:53,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:33:53,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335860569] [2023-12-16 05:33:53,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335860569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:33:53,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:33:53,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:33:53,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481553529] [2023-12-16 05:33:53,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:33:53,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:33:53,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:33:53,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:33:53,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:33:53,093 INFO L87 Difference]: Start difference. First operand 1019 states and 1720 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:33:54,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:33:54,327 INFO L93 Difference]: Finished difference Result 2564 states and 4389 transitions. [2023-12-16 05:33:54,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:33:54,327 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2023-12-16 05:33:54,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:33:54,334 INFO L225 Difference]: With dead ends: 2564 [2023-12-16 05:33:54,335 INFO L226 Difference]: Without dead ends: 1655 [2023-12-16 05:33:54,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:33:54,338 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 1195 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 2016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:33:54,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 728 Invalid, 2016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 1577 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 05:33:54,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2023-12-16 05:33:54,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1506. [2023-12-16 05:33:54,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1185 states have (on average 1.639662447257384) internal successors, (1943), 1192 states have internal predecessors, (1943), 293 states have call successors, (293), 23 states have call predecessors, (293), 27 states have return successors, (324), 292 states have call predecessors, (324), 292 states have call successors, (324) [2023-12-16 05:33:54,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2560 transitions. [2023-12-16 05:33:54,387 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2560 transitions. Word has length 115 [2023-12-16 05:33:54,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:33:54,387 INFO L495 AbstractCegarLoop]: Abstraction has 1506 states and 2560 transitions. [2023-12-16 05:33:54,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:33:54,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2560 transitions. [2023-12-16 05:33:54,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 05:33:54,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:33:54,393 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:33:54,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 05:33:54,394 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:33:54,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:33:54,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1516541741, now seen corresponding path program 1 times [2023-12-16 05:33:54,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:33:54,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785884518] [2023-12-16 05:33:54,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:54,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:33:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:54,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:33:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:54,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:33:54,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:54,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:33:54,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:54,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:33:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:54,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:33:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:54,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:33:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:54,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-16 05:33:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:54,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 05:33:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:54,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 05:33:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:54,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 05:33:54,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:54,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:33:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:54,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 05:33:54,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:54,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 05:33:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:54,518 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:33:54,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:33:54,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785884518] [2023-12-16 05:33:54,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785884518] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:33:54,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:33:54,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:33:54,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114531014] [2023-12-16 05:33:54,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:33:54,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:33:54,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:33:54,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:33:54,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:33:54,520 INFO L87 Difference]: Start difference. First operand 1506 states and 2560 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:33:55,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:33:55,857 INFO L93 Difference]: Finished difference Result 3666 states and 6348 transitions. [2023-12-16 05:33:55,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:33:55,858 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2023-12-16 05:33:55,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:33:55,869 INFO L225 Difference]: With dead ends: 3666 [2023-12-16 05:33:55,869 INFO L226 Difference]: Without dead ends: 2390 [2023-12-16 05:33:55,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:33:55,873 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 1193 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1537 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 1537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:33:55,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 708 Invalid, 1972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 1537 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 05:33:55,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2023-12-16 05:33:55,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2241. [2023-12-16 05:33:55,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2241 states, 1797 states have (on average 1.6471897607122983) internal successors, (2960), 1804 states have internal predecessors, (2960), 416 states have call successors, (416), 23 states have call predecessors, (416), 27 states have return successors, (463), 415 states have call predecessors, (463), 415 states have call successors, (463) [2023-12-16 05:33:55,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2241 states to 2241 states and 3839 transitions. [2023-12-16 05:33:55,942 INFO L78 Accepts]: Start accepts. Automaton has 2241 states and 3839 transitions. Word has length 116 [2023-12-16 05:33:55,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:33:55,943 INFO L495 AbstractCegarLoop]: Abstraction has 2241 states and 3839 transitions. [2023-12-16 05:33:55,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:33:55,943 INFO L276 IsEmpty]: Start isEmpty. Operand 2241 states and 3839 transitions. [2023-12-16 05:33:55,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-16 05:33:55,950 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:33:55,950 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:33:55,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 05:33:55,951 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:33:55,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:33:55,951 INFO L85 PathProgramCache]: Analyzing trace with hash 209029513, now seen corresponding path program 1 times [2023-12-16 05:33:55,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:33:55,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036712480] [2023-12-16 05:33:55,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:55,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:33:55,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:55,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:33:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:55,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:33:55,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:55,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:33:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:55,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:33:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:55,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:33:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:55,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:33:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:56,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-16 05:33:56,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:56,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 05:33:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:56,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 05:33:56,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:56,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-12-16 05:33:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:56,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 05:33:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:56,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-16 05:33:56,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:56,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-16 05:33:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:56,018 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:33:56,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:33:56,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036712480] [2023-12-16 05:33:56,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036712480] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:33:56,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:33:56,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:33:56,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776876587] [2023-12-16 05:33:56,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:33:56,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:33:56,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:33:56,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:33:56,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:33:56,020 INFO L87 Difference]: Start difference. First operand 2241 states and 3839 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:33:57,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:33:57,309 INFO L93 Difference]: Finished difference Result 5376 states and 9398 transitions. [2023-12-16 05:33:57,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:33:57,310 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2023-12-16 05:33:57,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:33:57,325 INFO L225 Difference]: With dead ends: 5376 [2023-12-16 05:33:57,326 INFO L226 Difference]: Without dead ends: 3562 [2023-12-16 05:33:57,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:33:57,332 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 1191 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:33:57,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 708 Invalid, 1974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 05:33:57,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3562 states. [2023-12-16 05:33:57,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3562 to 3413. [2023-12-16 05:33:57,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3413 states, 2790 states have (on average 1.6523297491039426) internal successors, (4610), 2797 states have internal predecessors, (4610), 595 states have call successors, (595), 23 states have call predecessors, (595), 27 states have return successors, (668), 594 states have call predecessors, (668), 594 states have call successors, (668) [2023-12-16 05:33:57,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 5873 transitions. [2023-12-16 05:33:57,438 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 5873 transitions. Word has length 117 [2023-12-16 05:33:57,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:33:57,439 INFO L495 AbstractCegarLoop]: Abstraction has 3413 states and 5873 transitions. [2023-12-16 05:33:57,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:33:57,439 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 5873 transitions. [2023-12-16 05:33:57,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-16 05:33:57,448 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:33:57,449 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:33:57,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 05:33:57,449 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:33:57,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:33:57,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1532009975, now seen corresponding path program 1 times [2023-12-16 05:33:57,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:33:57,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390571679] [2023-12-16 05:33:57,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:57,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:33:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:57,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:33:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:57,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:33:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:57,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:33:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:57,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:33:57,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:57,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:33:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:57,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:33:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:57,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-16 05:33:57,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:57,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 05:33:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:57,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-16 05:33:57,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:57,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 05:33:57,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:57,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 05:33:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:57,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-12-16 05:33:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:57,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 05:33:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:57,580 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:33:57,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:33:57,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390571679] [2023-12-16 05:33:57,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390571679] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:33:57,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:33:57,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:33:57,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757956437] [2023-12-16 05:33:57,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:33:57,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:33:57,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:33:57,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:33:57,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:33:57,581 INFO L87 Difference]: Start difference. First operand 3413 states and 5873 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:33:58,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:33:58,941 INFO L93 Difference]: Finished difference Result 8231 states and 14452 transitions. [2023-12-16 05:33:58,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:33:58,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2023-12-16 05:33:58,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:33:58,965 INFO L225 Difference]: With dead ends: 8231 [2023-12-16 05:33:58,965 INFO L226 Difference]: Without dead ends: 5532 [2023-12-16 05:33:58,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:33:58,974 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 1189 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1560 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 2002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 1560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:33:58,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1204 Valid, 726 Invalid, 2002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 1560 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 05:33:58,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5532 states. [2023-12-16 05:33:59,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5532 to 5383. [2023-12-16 05:33:59,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5383 states, 4384 states have (on average 1.6425638686131387) internal successors, (7201), 4391 states have internal predecessors, (7201), 971 states have call successors, (971), 23 states have call predecessors, (971), 27 states have return successors, (1088), 970 states have call predecessors, (1088), 970 states have call successors, (1088) [2023-12-16 05:33:59,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5383 states to 5383 states and 9260 transitions. [2023-12-16 05:33:59,192 INFO L78 Accepts]: Start accepts. Automaton has 5383 states and 9260 transitions. Word has length 118 [2023-12-16 05:33:59,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:33:59,193 INFO L495 AbstractCegarLoop]: Abstraction has 5383 states and 9260 transitions. [2023-12-16 05:33:59,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:33:59,193 INFO L276 IsEmpty]: Start isEmpty. Operand 5383 states and 9260 transitions. [2023-12-16 05:33:59,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 05:33:59,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:33:59,212 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:33:59,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 05:33:59,213 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:33:59,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:33:59,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1118331803, now seen corresponding path program 1 times [2023-12-16 05:33:59,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:33:59,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099016967] [2023-12-16 05:33:59,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:33:59,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:33:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:59,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:33:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:59,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:33:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:59,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:33:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:59,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:33:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:59,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:33:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:59,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:33:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:59,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-16 05:33:59,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:59,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:33:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:59,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-16 05:33:59,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:59,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-16 05:33:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:59,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-12-16 05:33:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:59,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 05:33:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:59,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-16 05:33:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:33:59,289 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:33:59,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:33:59,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099016967] [2023-12-16 05:33:59,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099016967] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:33:59,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:33:59,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:33:59,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838495046] [2023-12-16 05:33:59,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:33:59,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:33:59,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:33:59,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:33:59,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:33:59,290 INFO L87 Difference]: Start difference. First operand 5383 states and 9260 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:34:00,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:34:00,809 INFO L93 Difference]: Finished difference Result 13368 states and 23473 transitions. [2023-12-16 05:34:00,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:34:00,810 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2023-12-16 05:34:00,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:34:00,856 INFO L225 Difference]: With dead ends: 13368 [2023-12-16 05:34:00,857 INFO L226 Difference]: Without dead ends: 9065 [2023-12-16 05:34:00,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:34:00,870 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 1187 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:34:00,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1202 Valid, 715 Invalid, 1986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 1543 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 05:34:00,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9065 states. [2023-12-16 05:34:01,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9065 to 8916. [2023-12-16 05:34:01,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8916 states, 7311 states have (on average 1.640951990151826) internal successors, (11997), 7318 states have internal predecessors, (11997), 1577 states have call successors, (1577), 23 states have call predecessors, (1577), 27 states have return successors, (1772), 1576 states have call predecessors, (1772), 1576 states have call successors, (1772) [2023-12-16 05:34:01,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8916 states to 8916 states and 15346 transitions. [2023-12-16 05:34:01,165 INFO L78 Accepts]: Start accepts. Automaton has 8916 states and 15346 transitions. Word has length 119 [2023-12-16 05:34:01,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:34:01,165 INFO L495 AbstractCegarLoop]: Abstraction has 8916 states and 15346 transitions. [2023-12-16 05:34:01,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:34:01,166 INFO L276 IsEmpty]: Start isEmpty. Operand 8916 states and 15346 transitions. [2023-12-16 05:34:01,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-16 05:34:01,219 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:34:01,220 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:34:01,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 05:34:01,220 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:34:01,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:34:01,220 INFO L85 PathProgramCache]: Analyzing trace with hash 506924713, now seen corresponding path program 1 times [2023-12-16 05:34:01,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:34:01,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908112881] [2023-12-16 05:34:01,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:34:01,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:34:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:01,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:34:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:01,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:34:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:01,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:34:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:01,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:34:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:01,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:34:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:01,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:34:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:01,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-12-16 05:34:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:01,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 05:34:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:01,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 05:34:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:01,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 05:34:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:01,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-12-16 05:34:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:01,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-16 05:34:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:01,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-12-16 05:34:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:01,310 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:34:01,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:34:01,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908112881] [2023-12-16 05:34:01,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908112881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:34:01,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:34:01,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:34:01,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270930343] [2023-12-16 05:34:01,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:34:01,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:34:01,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:34:01,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:34:01,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:34:01,312 INFO L87 Difference]: Start difference. First operand 8916 states and 15346 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:34:02,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:34:02,881 INFO L93 Difference]: Finished difference Result 23140 states and 40607 transitions. [2023-12-16 05:34:02,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:34:02,882 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2023-12-16 05:34:02,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:34:02,950 INFO L225 Difference]: With dead ends: 23140 [2023-12-16 05:34:02,951 INFO L226 Difference]: Without dead ends: 15737 [2023-12-16 05:34:02,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:34:02,969 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 1185 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1590 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 2024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 1590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:34:02,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1200 Valid, 751 Invalid, 2024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 1590 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 05:34:02,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15737 states. [2023-12-16 05:34:03,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15737 to 15588. [2023-12-16 05:34:03,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15588 states, 12780 states have (on average 1.6320813771517997) internal successors, (20858), 12787 states have internal predecessors, (20858), 2780 states have call successors, (2780), 23 states have call predecessors, (2780), 27 states have return successors, (3119), 2779 states have call predecessors, (3119), 2779 states have call successors, (3119) [2023-12-16 05:34:03,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15588 states to 15588 states and 26757 transitions. [2023-12-16 05:34:03,504 INFO L78 Accepts]: Start accepts. Automaton has 15588 states and 26757 transitions. Word has length 120 [2023-12-16 05:34:03,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:34:03,504 INFO L495 AbstractCegarLoop]: Abstraction has 15588 states and 26757 transitions. [2023-12-16 05:34:03,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:34:03,504 INFO L276 IsEmpty]: Start isEmpty. Operand 15588 states and 26757 transitions. [2023-12-16 05:34:03,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 05:34:03,530 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:34:03,530 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:34:03,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 05:34:03,530 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:34:03,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:34:03,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1059107364, now seen corresponding path program 1 times [2023-12-16 05:34:03,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:34:03,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078357614] [2023-12-16 05:34:03,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:34:03,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:34:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:03,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:34:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:03,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:34:03,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:03,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:34:03,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:03,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:34:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:03,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:34:03,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:03,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:34:03,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:03,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 05:34:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:03,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-12-16 05:34:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:03,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-12-16 05:34:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:03,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 05:34:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:03,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 05:34:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:03,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-16 05:34:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:03,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-16 05:34:03,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:03,606 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:34:03,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:34:03,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078357614] [2023-12-16 05:34:03,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078357614] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:34:03,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:34:03,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:34:03,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209785508] [2023-12-16 05:34:03,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:34:03,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:34:03,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:34:03,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:34:03,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:34:03,608 INFO L87 Difference]: Start difference. First operand 15588 states and 26757 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:34:05,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:34:05,325 INFO L93 Difference]: Finished difference Result 41307 states and 72407 transitions. [2023-12-16 05:34:05,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:34:05,325 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2023-12-16 05:34:05,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:34:05,560 INFO L225 Difference]: With dead ends: 41307 [2023-12-16 05:34:05,561 INFO L226 Difference]: Without dead ends: 27852 [2023-12-16 05:34:05,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:34:05,586 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 1183 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1542 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 1986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 1542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:34:05,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 709 Invalid, 1986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 1542 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 05:34:05,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27852 states. [2023-12-16 05:34:06,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27852 to 27703. [2023-12-16 05:34:06,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27703 states, 22856 states have (on average 1.6285439271963598) internal successors, (37222), 22863 states have internal predecessors, (37222), 4819 states have call successors, (4819), 23 states have call predecessors, (4819), 27 states have return successors, (5432), 4818 states have call predecessors, (5432), 4818 states have call successors, (5432) [2023-12-16 05:34:06,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27703 states to 27703 states and 47473 transitions. [2023-12-16 05:34:06,492 INFO L78 Accepts]: Start accepts. Automaton has 27703 states and 47473 transitions. Word has length 121 [2023-12-16 05:34:06,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:34:06,493 INFO L495 AbstractCegarLoop]: Abstraction has 27703 states and 47473 transitions. [2023-12-16 05:34:06,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:34:06,493 INFO L276 IsEmpty]: Start isEmpty. Operand 27703 states and 47473 transitions. [2023-12-16 05:34:06,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-16 05:34:06,516 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:34:06,517 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:34:06,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 05:34:06,517 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:34:06,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:34:06,517 INFO L85 PathProgramCache]: Analyzing trace with hash 118598503, now seen corresponding path program 1 times [2023-12-16 05:34:06,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:34:06,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567403942] [2023-12-16 05:34:06,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:34:06,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:34:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:06,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:34:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:06,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:34:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:06,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:34:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:06,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:34:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:06,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:34:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:06,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:34:06,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:06,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 05:34:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:06,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 05:34:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:06,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-12-16 05:34:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:06,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-12-16 05:34:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:06,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-12-16 05:34:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:06,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-16 05:34:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:06,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-16 05:34:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:06,594 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:34:06,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:34:06,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567403942] [2023-12-16 05:34:06,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567403942] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:34:06,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:34:06,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:34:06,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636799898] [2023-12-16 05:34:06,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:34:06,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:34:06,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:34:06,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:34:06,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:34:06,597 INFO L87 Difference]: Start difference. First operand 27703 states and 47473 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:34:08,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:34:08,856 INFO L93 Difference]: Finished difference Result 75499 states and 131596 transitions. [2023-12-16 05:34:08,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:34:08,857 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2023-12-16 05:34:08,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:34:09,057 INFO L225 Difference]: With dead ends: 75499 [2023-12-16 05:34:09,057 INFO L226 Difference]: Without dead ends: 50676 [2023-12-16 05:34:09,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:34:09,128 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 1181 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1544 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 1987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 1544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:34:09,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 720 Invalid, 1987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 1544 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 05:34:09,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50676 states. [2023-12-16 05:34:10,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50676 to 50527. [2023-12-16 05:34:10,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50527 states, 41965 states have (on average 1.6236387465745263) internal successors, (68136), 41972 states have internal predecessors, (68136), 8534 states have call successors, (8534), 23 states have call predecessors, (8534), 27 states have return successors, (9679), 8533 states have call predecessors, (9679), 8533 states have call successors, (9679) [2023-12-16 05:34:11,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50527 states to 50527 states and 86349 transitions. [2023-12-16 05:34:11,006 INFO L78 Accepts]: Start accepts. Automaton has 50527 states and 86349 transitions. Word has length 122 [2023-12-16 05:34:11,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:34:11,006 INFO L495 AbstractCegarLoop]: Abstraction has 50527 states and 86349 transitions. [2023-12-16 05:34:11,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:34:11,006 INFO L276 IsEmpty]: Start isEmpty. Operand 50527 states and 86349 transitions. [2023-12-16 05:34:11,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-12-16 05:34:11,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:34:11,033 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:34:11,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 05:34:11,033 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:34:11,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:34:11,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1201086500, now seen corresponding path program 1 times [2023-12-16 05:34:11,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:34:11,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071483819] [2023-12-16 05:34:11,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:34:11,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:34:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:11,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:34:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:11,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:34:11,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:11,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:34:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:11,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:34:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:11,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:34:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:11,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:34:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:11,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-16 05:34:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:11,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-16 05:34:11,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:11,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 05:34:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:11,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-16 05:34:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:11,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-16 05:34:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:11,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-12-16 05:34:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:11,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-12-16 05:34:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:11,103 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:34:11,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:34:11,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071483819] [2023-12-16 05:34:11,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071483819] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:34:11,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:34:11,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 05:34:11,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349079926] [2023-12-16 05:34:11,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:34:11,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 05:34:11,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:34:11,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 05:34:11,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:34:11,105 INFO L87 Difference]: Start difference. First operand 50527 states and 86349 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:34:13,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:34:13,942 INFO L93 Difference]: Finished difference Result 94246 states and 164759 transitions. [2023-12-16 05:34:13,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:34:13,942 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2023-12-16 05:34:13,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:34:14,368 INFO L225 Difference]: With dead ends: 94246 [2023-12-16 05:34:14,368 INFO L226 Difference]: Without dead ends: 94056 [2023-12-16 05:34:14,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-16 05:34:14,403 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 1179 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1537 mSolverCounterSat, 445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 1982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 445 IncrementalHoareTripleChecker+Valid, 1537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:34:14,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1194 Valid, 709 Invalid, 1982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [445 Valid, 1537 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 05:34:14,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94056 states. [2023-12-16 05:34:16,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94056 to 93907. [2023-12-16 05:34:17,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93907 states, 78546 states have (on average 1.6172306673796246) internal successors, (127027), 78553 states have internal predecessors, (127027), 15333 states have call successors, (15333), 23 states have call predecessors, (15333), 27 states have return successors, (17524), 15332 states have call predecessors, (17524), 15332 states have call successors, (17524) [2023-12-16 05:34:17,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93907 states to 93907 states and 159884 transitions. [2023-12-16 05:34:17,728 INFO L78 Accepts]: Start accepts. Automaton has 93907 states and 159884 transitions. Word has length 123 [2023-12-16 05:34:17,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:34:17,729 INFO L495 AbstractCegarLoop]: Abstraction has 93907 states and 159884 transitions. [2023-12-16 05:34:17,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-16 05:34:17,729 INFO L276 IsEmpty]: Start isEmpty. Operand 93907 states and 159884 transitions. [2023-12-16 05:34:17,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-16 05:34:17,976 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:34:17,976 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:34:17,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 05:34:17,977 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:34:17,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:34:17,977 INFO L85 PathProgramCache]: Analyzing trace with hash 961517096, now seen corresponding path program 1 times [2023-12-16 05:34:17,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:34:17,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694818666] [2023-12-16 05:34:17,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:34:17,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:34:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:18,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:34:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:18,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:34:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:18,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 05:34:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:18,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:34:18,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:18,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:34:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:18,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-12-16 05:34:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:18,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 05:34:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:18,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-12-16 05:34:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:18,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 05:34:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:18,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 05:34:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:18,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 05:34:18,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:18,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-12-16 05:34:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:18,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-12-16 05:34:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:34:18,320 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-16 05:34:18,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:34:18,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694818666] [2023-12-16 05:34:18,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694818666] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:34:18,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:34:18,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-16 05:34:18,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727685472] [2023-12-16 05:34:18,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:34:18,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-16 05:34:18,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:34:18,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-16 05:34:18,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2023-12-16 05:34:18,321 INFO L87 Difference]: Start difference. First operand 93907 states and 159884 transitions. Second operand has 18 states, 16 states have (on average 5.1875) internal successors, (83), 12 states have internal predecessors, (83), 6 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2023-12-16 05:34:28,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:34:28,122 INFO L93 Difference]: Finished difference Result 187927 states and 331860 transitions. [2023-12-16 05:34:28,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2023-12-16 05:34:28,122 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 5.1875) internal successors, (83), 12 states have internal predecessors, (83), 6 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 124 [2023-12-16 05:34:28,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:34:29,041 INFO L225 Difference]: With dead ends: 187927 [2023-12-16 05:34:29,041 INFO L226 Difference]: Without dead ends: 187742 [2023-12-16 05:34:29,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1647 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=922, Invalid=4334, Unknown=0, NotChecked=0, Total=5256 [2023-12-16 05:34:29,114 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 4370 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 9013 mSolverCounterSat, 1544 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4381 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 10557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1544 IncrementalHoareTripleChecker+Valid, 9013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-16 05:34:29,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4381 Valid, 2370 Invalid, 10557 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1544 Valid, 9013 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-12-16 05:34:29,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187742 states. Received shutdown request... [2023-12-16 05:34:30,884 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 05:34:30,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 05:34:30,884 WARN L619 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2023-12-16 05:34:30,887 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:34:30,888 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 05:34:30,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:34:30 BoogieIcfgContainer [2023-12-16 05:34:30,890 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 05:34:30,890 INFO L158 Benchmark]: Toolchain (without parser) took 56929.46ms. Allocated memory was 200.3MB in the beginning and 4.5GB in the end (delta: 4.3GB). Free memory was 142.8MB in the beginning and 3.1GB in the end (delta: -3.0GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-16 05:34:30,890 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 200.3MB. Free memory is still 146.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 05:34:30,891 INFO L158 Benchmark]: CACSL2BoogieTranslator took 603.65ms. Allocated memory was 200.3MB in the beginning and 310.4MB in the end (delta: 110.1MB). Free memory was 142.8MB in the beginning and 266.6MB in the end (delta: -123.8MB). Peak memory consumption was 42.7MB. Max. memory is 8.0GB. [2023-12-16 05:34:30,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.02ms. Allocated memory is still 310.4MB. Free memory was 266.6MB in the beginning and 260.9MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 05:34:30,891 INFO L158 Benchmark]: Boogie Preprocessor took 99.47ms. Allocated memory is still 310.4MB. Free memory was 260.6MB in the beginning and 253.5MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 05:34:30,891 INFO L158 Benchmark]: RCFGBuilder took 989.94ms. Allocated memory is still 310.4MB. Free memory was 253.5MB in the beginning and 178.6MB in the end (delta: 75.0MB). Peak memory consumption was 75.5MB. Max. memory is 8.0GB. [2023-12-16 05:34:30,891 INFO L158 Benchmark]: TraceAbstraction took 55158.99ms. Allocated memory was 310.4MB in the beginning and 4.5GB in the end (delta: 4.2GB). Free memory was 178.0MB in the beginning and 3.1GB in the end (delta: -2.9GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-16 05:34:30,892 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 200.3MB. Free memory is still 146.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 603.65ms. Allocated memory was 200.3MB in the beginning and 310.4MB in the end (delta: 110.1MB). Free memory was 142.8MB in the beginning and 266.6MB in the end (delta: -123.8MB). Peak memory consumption was 42.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 71.02ms. Allocated memory is still 310.4MB. Free memory was 266.6MB in the beginning and 260.9MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 99.47ms. Allocated memory is still 310.4MB. Free memory was 260.6MB in the beginning and 253.5MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 989.94ms. Allocated memory is still 310.4MB. Free memory was 253.5MB in the beginning and 178.6MB in the end (delta: 75.0MB). Peak memory consumption was 75.5MB. Max. memory is 8.0GB. * TraceAbstraction took 55158.99ms. Allocated memory was 310.4MB in the beginning and 4.5GB in the end (delta: 4.2GB). Free memory was 178.0MB in the beginning and 3.1GB in the end (delta: -2.9GB). Peak memory consumption was 1.6GB. 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,"Util.i","") [48] - GenericResultAtLocation [Line: 66]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [66] - GenericResultAtLocation [Line: 108]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [108] - GenericResultAtLocation [Line: 489]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [489] - GenericResultAtLocation [Line: 855]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [855] - GenericResultAtLocation [Line: 992]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [992] - GenericResultAtLocation [Line: 1217]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1217] - GenericResultAtLocation [Line: 1255]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1255] - GenericResultAtLocation [Line: 1537]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1537] - GenericResultAtLocation [Line: 1934]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1934] - GenericResultAtLocation [Line: 3001]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3001] * 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: 3006]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 3006). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 24 procedures, 338 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 55.1s, OverallIterations: 21, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.5s, AutomataDifference: 38.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22517 SdHoareTripleChecker+Valid, 24.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22290 mSDsluCounter, 21804 SdHoareTripleChecker+Invalid, 20.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16665 mSDsCounter, 8017 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42922 IncrementalHoareTripleChecker+Invalid, 50939 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8017 mSolverCounterUnsat, 5139 mSDtfsCounter, 42922 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1582 GetRequests, 1264 SyntacticMatches, 0 SemanticMatches, 318 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2042 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93907occurred in iteration=20, InterpolantAutomatonStates: 231, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.4s AutomataMinimizationTime, 21 MinimizatonAttempts, 2230 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 2941 NumberOfCodeBlocks, 2941 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 3021 ConstructedInterpolants, 0 QuantifiedInterpolants, 5375 SizeOfPredicates, 8 NumberOfNonLiveVariables, 6111 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 28 InterpolantComputations, 20 PerfectInterpolantSequences, 818/842 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