./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 18d9c4eb49bcfbad00b16e4c52915ece2e20abb9b599480aaed1e3c1557875b0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 01:56:00,610 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 01:56:00,681 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 01:56:00,686 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 01:56:00,687 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 01:56:00,720 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 01:56:00,722 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 01:56:00,722 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 01:56:00,723 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 01:56:00,724 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 01:56:00,724 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 01:56:00,725 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 01:56:00,725 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 01:56:00,728 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 01:56:00,728 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 01:56:00,728 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 01:56:00,728 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 01:56:00,729 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 01:56:00,729 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 01:56:00,729 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 01:56:00,729 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 01:56:00,730 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 01:56:00,730 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 01:56:00,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 01:56:00,730 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 01:56:00,730 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 01:56:00,731 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 01:56:00,731 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 01:56:00,731 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 01:56:00,731 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 01:56:00,731 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 01:56:00,731 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 01:56:00,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:56:00,732 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 01:56:00,732 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 01:56:00,732 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 01:56:00,733 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 01:56:00,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 01:56:00,733 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 01:56:00,733 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 01:56:00,733 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 01:56:00,734 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 01:56:00,734 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18d9c4eb49bcfbad00b16e4c52915ece2e20abb9b599480aaed1e3c1557875b0 [2024-11-22 01:56:00,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 01:56:00,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 01:56:00,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 01:56:00,970 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 01:56:00,970 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 01:56:00,971 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c [2024-11-22 01:56:02,366 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 01:56:02,617 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 01:56:02,618 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c [2024-11-22 01:56:02,640 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae7146b7a/2f234c6d9bf9450592c13f648fbef0cf/FLAG08377ac77 [2024-11-22 01:56:02,934 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae7146b7a/2f234c6d9bf9450592c13f648fbef0cf [2024-11-22 01:56:02,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 01:56:02,938 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 01:56:02,945 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 01:56:02,946 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 01:56:02,965 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 01:56:02,966 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:56:02" (1/1) ... [2024-11-22 01:56:02,973 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@360c07ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:02, skipping insertion in model container [2024-11-22 01:56:02,974 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:56:02" (1/1) ... [2024-11-22 01:56:03,104 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 01:56:03,465 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c[9250,9263] [2024-11-22 01:56:03,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:56:03,796 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 01:56:03,807 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2024-11-22 01:56:03,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [276] [2024-11-22 01:56:03,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [386] [2024-11-22 01:56:03,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [403] [2024-11-22 01:56:03,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [412] [2024-11-22 01:56:03,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [778] [2024-11-22 01:56:03,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1356] [2024-11-22 01:56:03,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1753] [2024-11-22 01:56:03,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [2030] [2024-11-22 01:56:03,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3101] [2024-11-22 01:56:03,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [3450] [2024-11-22 01:56:03,836 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c[9250,9263] [2024-11-22 01:56:03,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:56:03,939 INFO L204 MainTranslator]: Completed translation [2024-11-22 01:56:03,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:03 WrapperNode [2024-11-22 01:56:03,940 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 01:56:03,941 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 01:56:03,941 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 01:56:03,942 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 01:56:03,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:03" (1/1) ... [2024-11-22 01:56:03,983 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:03" (1/1) ... [2024-11-22 01:56:04,042 INFO L138 Inliner]: procedures = 152, calls = 270, calls flagged for inlining = 67, calls inlined = 64, statements flattened = 1349 [2024-11-22 01:56:04,047 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 01:56:04,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 01:56:04,048 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 01:56:04,048 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 01:56:04,061 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:03" (1/1) ... [2024-11-22 01:56:04,061 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:03" (1/1) ... [2024-11-22 01:56:04,073 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:03" (1/1) ... [2024-11-22 01:56:04,113 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]. [2024-11-22 01:56:04,113 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:03" (1/1) ... [2024-11-22 01:56:04,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:03" (1/1) ... [2024-11-22 01:56:04,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:03" (1/1) ... [2024-11-22 01:56:04,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:03" (1/1) ... [2024-11-22 01:56:04,148 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:03" (1/1) ... [2024-11-22 01:56:04,151 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:03" (1/1) ... [2024-11-22 01:56:04,159 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 01:56:04,160 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 01:56:04,160 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 01:56:04,160 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 01:56:04,161 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:03" (1/1) ... [2024-11-22 01:56:04,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:56:04,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:56:04,193 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) [2024-11-22 01:56:04,202 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 [2024-11-22 01:56:04,250 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-22 01:56:04,250 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-22 01:56:04,250 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2024-11-22 01:56:04,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2024-11-22 01:56:04,251 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2024-11-22 01:56:04,251 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2024-11-22 01:56:04,251 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-22 01:56:04,251 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-22 01:56:04,252 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-22 01:56:04,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-22 01:56:04,252 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-22 01:56:04,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-22 01:56:04,252 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-22 01:56:04,253 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-22 01:56:04,253 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2024-11-22 01:56:04,253 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2024-11-22 01:56:04,253 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-22 01:56:04,253 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-22 01:56:04,253 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2024-11-22 01:56:04,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2024-11-22 01:56:04,253 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-22 01:56:04,253 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-22 01:56:04,254 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-22 01:56:04,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-22 01:56:04,254 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-22 01:56:04,254 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-22 01:56:04,254 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2024-11-22 01:56:04,254 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2024-11-22 01:56:04,254 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2024-11-22 01:56:04,254 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2024-11-22 01:56:04,254 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-22 01:56:04,255 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-22 01:56:04,255 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-22 01:56:04,255 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-22 01:56:04,255 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-22 01:56:04,255 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-22 01:56:04,255 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2024-11-22 01:56:04,255 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2024-11-22 01:56:04,255 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-22 01:56:04,256 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-22 01:56:04,256 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-22 01:56:04,256 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-22 01:56:04,256 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-22 01:56:04,256 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-22 01:56:04,256 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2024-11-22 01:56:04,256 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2024-11-22 01:56:04,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 01:56:04,256 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-22 01:56:04,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-22 01:56:04,257 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-22 01:56:04,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-22 01:56:04,257 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2024-11-22 01:56:04,257 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2024-11-22 01:56:04,257 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2024-11-22 01:56:04,257 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2024-11-22 01:56:04,257 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2024-11-22 01:56:04,257 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2024-11-22 01:56:04,257 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-22 01:56:04,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-22 01:56:04,258 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-22 01:56:04,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-22 01:56:04,258 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-22 01:56:04,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-22 01:56:04,258 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-22 01:56:04,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-22 01:56:04,258 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-22 01:56:04,258 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-22 01:56:04,258 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-22 01:56:04,258 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-22 01:56:04,258 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-22 01:56:04,258 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-22 01:56:04,258 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-22 01:56:04,258 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-22 01:56:04,259 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2024-11-22 01:56:04,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2024-11-22 01:56:04,259 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2024-11-22 01:56:04,259 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2024-11-22 01:56:04,259 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-22 01:56:04,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-22 01:56:04,259 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-22 01:56:04,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-22 01:56:04,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 01:56:04,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 01:56:04,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 01:56:04,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 01:56:04,259 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-22 01:56:04,260 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-22 01:56:04,260 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2024-11-22 01:56:04,260 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2024-11-22 01:56:04,260 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2024-11-22 01:56:04,260 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2024-11-22 01:56:04,261 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-22 01:56:04,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-22 01:56:04,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 01:56:04,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 01:56:04,494 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 01:56:04,498 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 01:56:05,650 INFO L? ?]: Removed 633 outVars from TransFormulas that were not future-live. [2024-11-22 01:56:05,651 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 01:56:05,673 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 01:56:05,673 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 01:56:05,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:56:05 BoogieIcfgContainer [2024-11-22 01:56:05,674 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 01:56:05,675 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 01:56:05,676 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 01:56:05,678 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 01:56:05,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:56:02" (1/3) ... [2024-11-22 01:56:05,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29883864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:56:05, skipping insertion in model container [2024-11-22 01:56:05,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:56:03" (2/3) ... [2024-11-22 01:56:05,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29883864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:56:05, skipping insertion in model container [2024-11-22 01:56:05,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:56:05" (3/3) ... [2024-11-22 01:56:05,681 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_productSimulator.cil.c [2024-11-22 01:56:05,695 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 01:56:05,696 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 01:56:05,760 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 01:56:05,765 INFO L333 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, 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;@5e13b537, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 01:56:05,766 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 01:56:05,780 INFO L276 IsEmpty]: Start isEmpty. Operand has 614 states, 453 states have (on average 1.5121412803532008) internal successors, (685), 475 states have internal predecessors, (685), 115 states have call successors, (115), 44 states have call predecessors, (115), 44 states have return successors, (115), 113 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-22 01:56:05,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-22 01:56:05,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:05,829 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:05,831 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:05,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:05,838 INFO L85 PathProgramCache]: Analyzing trace with hash 2009232668, now seen corresponding path program 1 times [2024-11-22 01:56:05,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:05,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228471250] [2024-11-22 01:56:05,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:05,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:06,356 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-22 01:56:06,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:06,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228471250] [2024-11-22 01:56:06,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228471250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:06,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:06,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 01:56:06,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776157097] [2024-11-22 01:56:06,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:06,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 01:56:06,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:06,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 01:56:06,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 01:56:06,462 INFO L87 Difference]: Start difference. First operand has 614 states, 453 states have (on average 1.5121412803532008) internal successors, (685), 475 states have internal predecessors, (685), 115 states have call successors, (115), 44 states have call predecessors, (115), 44 states have return successors, (115), 113 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 01:56:06,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:06,697 INFO L93 Difference]: Finished difference Result 958 states and 1411 transitions. [2024-11-22 01:56:06,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 01:56:06,715 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 152 [2024-11-22 01:56:06,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:06,767 INFO L225 Difference]: With dead ends: 958 [2024-11-22 01:56:06,770 INFO L226 Difference]: Without dead ends: 606 [2024-11-22 01:56:06,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 01:56:06,794 INFO L432 NwaCegarLoop]: 909 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:06,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:06,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-22 01:56:06,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 606. [2024-11-22 01:56:06,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 447 states have (on average 1.5078299776286352) internal successors, (674), 467 states have internal predecessors, (674), 115 states have call successors, (115), 44 states have call predecessors, (115), 43 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-22 01:56:06,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 901 transitions. [2024-11-22 01:56:06,991 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 901 transitions. Word has length 152 [2024-11-22 01:56:06,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:06,995 INFO L471 AbstractCegarLoop]: Abstraction has 606 states and 901 transitions. [2024-11-22 01:56:06,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-22 01:56:06,996 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 901 transitions. [2024-11-22 01:56:07,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-22 01:56:07,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:07,011 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:07,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 01:56:07,012 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:07,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:07,013 INFO L85 PathProgramCache]: Analyzing trace with hash -231323069, now seen corresponding path program 1 times [2024-11-22 01:56:07,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:07,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276079767] [2024-11-22 01:56:07,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:07,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:07,512 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-22 01:56:07,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:07,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276079767] [2024-11-22 01:56:07,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276079767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:07,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:07,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:56:07,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462857126] [2024-11-22 01:56:07,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:07,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:56:07,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:07,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:56:07,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:56:07,519 INFO L87 Difference]: Start difference. First operand 606 states and 901 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-22 01:56:07,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:07,638 INFO L93 Difference]: Finished difference Result 1176 states and 1746 transitions. [2024-11-22 01:56:07,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:56:07,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 160 [2024-11-22 01:56:07,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:07,649 INFO L225 Difference]: With dead ends: 1176 [2024-11-22 01:56:07,650 INFO L226 Difference]: Without dead ends: 606 [2024-11-22 01:56:07,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:56:07,656 INFO L432 NwaCegarLoop]: 899 mSDtfsCounter, 0 mSDsluCounter, 2685 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3584 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:07,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3584 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:07,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-22 01:56:07,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 606. [2024-11-22 01:56:07,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 447 states have (on average 1.4921700223713648) internal successors, (667), 467 states have internal predecessors, (667), 115 states have call successors, (115), 44 states have call predecessors, (115), 43 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-22 01:56:07,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 894 transitions. [2024-11-22 01:56:07,706 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 894 transitions. Word has length 160 [2024-11-22 01:56:07,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:07,708 INFO L471 AbstractCegarLoop]: Abstraction has 606 states and 894 transitions. [2024-11-22 01:56:07,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-22 01:56:07,709 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 894 transitions. [2024-11-22 01:56:07,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-22 01:56:07,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:07,716 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:07,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 01:56:07,719 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:07,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:07,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1384375514, now seen corresponding path program 1 times [2024-11-22 01:56:07,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:07,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141199523] [2024-11-22 01:56:07,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:07,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:07,918 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-22 01:56:07,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:07,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141199523] [2024-11-22 01:56:07,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141199523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:07,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:07,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:07,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584835101] [2024-11-22 01:56:07,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:07,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:07,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:07,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:07,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:07,926 INFO L87 Difference]: Start difference. First operand 606 states and 894 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-22 01:56:08,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:08,001 INFO L93 Difference]: Finished difference Result 1182 states and 1759 transitions. [2024-11-22 01:56:08,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:08,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 158 [2024-11-22 01:56:08,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:08,008 INFO L225 Difference]: With dead ends: 1182 [2024-11-22 01:56:08,008 INFO L226 Difference]: Without dead ends: 607 [2024-11-22 01:56:08,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:08,012 INFO L432 NwaCegarLoop]: 883 mSDtfsCounter, 858 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:08,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 901 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:08,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-11-22 01:56:08,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 607. [2024-11-22 01:56:08,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 449 states have (on average 1.4810690423162582) internal successors, (665), 467 states have internal predecessors, (665), 113 states have call successors, (113), 45 states have call predecessors, (113), 44 states have return successors, (110), 109 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-22 01:56:08,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 888 transitions. [2024-11-22 01:56:08,055 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 888 transitions. Word has length 158 [2024-11-22 01:56:08,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:08,056 INFO L471 AbstractCegarLoop]: Abstraction has 607 states and 888 transitions. [2024-11-22 01:56:08,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-22 01:56:08,056 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 888 transitions. [2024-11-22 01:56:08,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-22 01:56:08,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:08,061 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:08,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 01:56:08,061 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:08,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:08,062 INFO L85 PathProgramCache]: Analyzing trace with hash -82745420, now seen corresponding path program 1 times [2024-11-22 01:56:08,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:08,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155956228] [2024-11-22 01:56:08,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:08,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:08,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:08,223 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-22 01:56:08,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:08,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155956228] [2024-11-22 01:56:08,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155956228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:08,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:08,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:08,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122030971] [2024-11-22 01:56:08,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:08,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:08,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:08,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:08,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:08,231 INFO L87 Difference]: Start difference. First operand 607 states and 888 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:56:08,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:08,289 INFO L93 Difference]: Finished difference Result 1176 states and 1738 transitions. [2024-11-22 01:56:08,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:08,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 189 [2024-11-22 01:56:08,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:08,295 INFO L225 Difference]: With dead ends: 1176 [2024-11-22 01:56:08,295 INFO L226 Difference]: Without dead ends: 605 [2024-11-22 01:56:08,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:08,301 INFO L432 NwaCegarLoop]: 876 mSDtfsCounter, 838 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:08,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 914 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:08,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-22 01:56:08,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2024-11-22 01:56:08,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 449 states have (on average 1.4743875278396437) internal successors, (662), 465 states have internal predecessors, (662), 111 states have call successors, (111), 45 states have call predecessors, (111), 44 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-22 01:56:08,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 881 transitions. [2024-11-22 01:56:08,343 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 881 transitions. Word has length 189 [2024-11-22 01:56:08,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:08,345 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 881 transitions. [2024-11-22 01:56:08,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:56:08,346 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 881 transitions. [2024-11-22 01:56:08,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-22 01:56:08,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:08,350 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:08,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 01:56:08,351 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:08,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:08,351 INFO L85 PathProgramCache]: Analyzing trace with hash 86796708, now seen corresponding path program 1 times [2024-11-22 01:56:08,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:08,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041943125] [2024-11-22 01:56:08,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:08,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:08,465 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-22 01:56:08,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:08,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041943125] [2024-11-22 01:56:08,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041943125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:08,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:08,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:08,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738817710] [2024-11-22 01:56:08,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:08,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:08,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:08,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:08,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:08,470 INFO L87 Difference]: Start difference. First operand 605 states and 881 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-22 01:56:08,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:08,570 INFO L93 Difference]: Finished difference Result 1167 states and 1704 transitions. [2024-11-22 01:56:08,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:08,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 176 [2024-11-22 01:56:08,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:08,577 INFO L225 Difference]: With dead ends: 1167 [2024-11-22 01:56:08,578 INFO L226 Difference]: Without dead ends: 608 [2024-11-22 01:56:08,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:08,581 INFO L432 NwaCegarLoop]: 856 mSDtfsCounter, 818 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:08,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 897 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:08,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-11-22 01:56:08,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 602. [2024-11-22 01:56:08,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 449 states have (on average 1.4498886414253898) internal successors, (651), 460 states have internal predecessors, (651), 108 states have call successors, (108), 45 states have call predecessors, (108), 44 states have return successors, (105), 104 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-22 01:56:08,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 864 transitions. [2024-11-22 01:56:08,630 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 864 transitions. Word has length 176 [2024-11-22 01:56:08,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:08,631 INFO L471 AbstractCegarLoop]: Abstraction has 602 states and 864 transitions. [2024-11-22 01:56:08,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-22 01:56:08,631 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 864 transitions. [2024-11-22 01:56:08,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-22 01:56:08,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:08,635 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:08,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 01:56:08,636 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:08,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:08,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1888580762, now seen corresponding path program 1 times [2024-11-22 01:56:08,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:08,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112542280] [2024-11-22 01:56:08,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:08,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:08,979 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-22 01:56:08,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:08,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112542280] [2024-11-22 01:56:08,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112542280] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:56:08,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20246265] [2024-11-22 01:56:08,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:08,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:08,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:56:08,982 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) [2024-11-22 01:56:08,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 01:56:09,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:09,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 1515 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 01:56:09,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:56:09,334 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-22 01:56:09,334 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:56:09,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20246265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:09,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:56:09,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-22 01:56:09,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849216464] [2024-11-22 01:56:09,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:09,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:09,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:09,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:09,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:56:09,336 INFO L87 Difference]: Start difference. First operand 602 states and 864 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:56:09,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:09,370 INFO L93 Difference]: Finished difference Result 939 states and 1329 transitions. [2024-11-22 01:56:09,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:09,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 187 [2024-11-22 01:56:09,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:09,374 INFO L225 Difference]: With dead ends: 939 [2024-11-22 01:56:09,374 INFO L226 Difference]: Without dead ends: 605 [2024-11-22 01:56:09,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:56:09,376 INFO L432 NwaCegarLoop]: 860 mSDtfsCounter, 1 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:09,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1718 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:09,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-22 01:56:09,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 604. [2024-11-22 01:56:09,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 451 states have (on average 1.4478935698447895) internal successors, (653), 462 states have internal predecessors, (653), 108 states have call successors, (108), 45 states have call predecessors, (108), 44 states have return successors, (105), 104 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-22 01:56:09,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 866 transitions. [2024-11-22 01:56:09,401 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 866 transitions. Word has length 187 [2024-11-22 01:56:09,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:09,401 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 866 transitions. [2024-11-22 01:56:09,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:56:09,402 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 866 transitions. [2024-11-22 01:56:09,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-22 01:56:09,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:09,404 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:09,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 01:56:09,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-22 01:56:09,605 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:09,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:09,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1844540433, now seen corresponding path program 1 times [2024-11-22 01:56:09,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:09,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101465611] [2024-11-22 01:56:09,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:09,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:09,872 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-22 01:56:09,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:09,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101465611] [2024-11-22 01:56:09,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101465611] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:56:09,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367520752] [2024-11-22 01:56:09,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:09,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:09,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:56:09,875 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) [2024-11-22 01:56:09,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 01:56:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:10,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 1559 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:56:10,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:56:10,234 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-22 01:56:10,234 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:56:10,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367520752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:10,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:56:10,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-22 01:56:10,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256013712] [2024-11-22 01:56:10,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:10,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:10,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:10,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:10,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:56:10,236 INFO L87 Difference]: Start difference. First operand 604 states and 866 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-22 01:56:10,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:10,276 INFO L93 Difference]: Finished difference Result 1228 states and 1793 transitions. [2024-11-22 01:56:10,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:10,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 202 [2024-11-22 01:56:10,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:10,280 INFO L225 Difference]: With dead ends: 1228 [2024-11-22 01:56:10,280 INFO L226 Difference]: Without dead ends: 702 [2024-11-22 01:56:10,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:56:10,282 INFO L432 NwaCegarLoop]: 876 mSDtfsCounter, 165 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:10,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1690 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:10,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2024-11-22 01:56:10,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 694. [2024-11-22 01:56:10,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 527 states have (on average 1.462998102466793) internal successors, (771), 538 states have internal predecessors, (771), 122 states have call successors, (122), 45 states have call predecessors, (122), 44 states have return successors, (119), 118 states have call predecessors, (119), 119 states have call successors, (119) [2024-11-22 01:56:10,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1012 transitions. [2024-11-22 01:56:10,311 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1012 transitions. Word has length 202 [2024-11-22 01:56:10,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:10,311 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 1012 transitions. [2024-11-22 01:56:10,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-22 01:56:10,312 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1012 transitions. [2024-11-22 01:56:10,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-22 01:56:10,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:10,314 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:10,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 01:56:10,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-22 01:56:10,519 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:10,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:10,520 INFO L85 PathProgramCache]: Analyzing trace with hash 299797991, now seen corresponding path program 1 times [2024-11-22 01:56:10,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:10,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720501960] [2024-11-22 01:56:10,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:10,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:10,743 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-22 01:56:10,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:10,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720501960] [2024-11-22 01:56:10,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720501960] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:56:10,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747407778] [2024-11-22 01:56:10,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:10,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:10,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:56:10,746 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) [2024-11-22 01:56:10,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 01:56:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:11,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 1651 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:56:11,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:56:11,205 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-11-22 01:56:11,206 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:56:11,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747407778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:11,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:56:11,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-22 01:56:11,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632927578] [2024-11-22 01:56:11,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:11,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:11,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:11,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:11,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:56:11,208 INFO L87 Difference]: Start difference. First operand 694 states and 1012 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2024-11-22 01:56:11,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:11,283 INFO L93 Difference]: Finished difference Result 2007 states and 2977 transitions. [2024-11-22 01:56:11,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:11,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 224 [2024-11-22 01:56:11,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:11,289 INFO L225 Difference]: With dead ends: 2007 [2024-11-22 01:56:11,290 INFO L226 Difference]: Without dead ends: 1342 [2024-11-22 01:56:11,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:56:11,292 INFO L432 NwaCegarLoop]: 903 mSDtfsCounter, 721 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:11,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [721 Valid, 1735 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:11,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2024-11-22 01:56:11,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1338. [2024-11-22 01:56:11,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1027 states have (on average 1.4673807205452776) internal successors, (1507), 1043 states have internal predecessors, (1507), 223 states have call successors, (223), 88 states have call predecessors, (223), 87 states have return successors, (235), 219 states have call predecessors, (235), 219 states have call successors, (235) [2024-11-22 01:56:11,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1965 transitions. [2024-11-22 01:56:11,366 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1965 transitions. Word has length 224 [2024-11-22 01:56:11,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:11,367 INFO L471 AbstractCegarLoop]: Abstraction has 1338 states and 1965 transitions. [2024-11-22 01:56:11,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2024-11-22 01:56:11,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1965 transitions. [2024-11-22 01:56:11,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-22 01:56:11,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:11,371 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:11,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 01:56:11,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:11,572 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:11,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:11,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1599728290, now seen corresponding path program 1 times [2024-11-22 01:56:11,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:11,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661164075] [2024-11-22 01:56:11,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:11,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:11,746 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-22 01:56:11,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:11,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661164075] [2024-11-22 01:56:11,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661164075] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:56:11,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9101864] [2024-11-22 01:56:11,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:11,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:11,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:56:11,751 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) [2024-11-22 01:56:11,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 01:56:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:12,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:56:12,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:56:12,209 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-22 01:56:12,209 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:56:12,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9101864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:12,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:56:12,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-22 01:56:12,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514873918] [2024-11-22 01:56:12,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:12,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:12,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:12,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:12,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:56:12,211 INFO L87 Difference]: Start difference. First operand 1338 states and 1965 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-22 01:56:12,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:12,295 INFO L93 Difference]: Finished difference Result 3228 states and 4751 transitions. [2024-11-22 01:56:12,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:12,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 203 [2024-11-22 01:56:12,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:12,306 INFO L225 Difference]: With dead ends: 3228 [2024-11-22 01:56:12,306 INFO L226 Difference]: Without dead ends: 2599 [2024-11-22 01:56:12,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:56:12,309 INFO L432 NwaCegarLoop]: 867 mSDtfsCounter, 723 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:12,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 1693 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:12,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2599 states. [2024-11-22 01:56:12,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2599 to 2595. [2024-11-22 01:56:12,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2595 states, 2005 states have (on average 1.4718204488778055) internal successors, (2951), 2030 states have internal predecessors, (2951), 420 states have call successors, (420), 170 states have call predecessors, (420), 169 states have return successors, (468), 414 states have call predecessors, (468), 414 states have call successors, (468) [2024-11-22 01:56:12,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2595 states to 2595 states and 3839 transitions. [2024-11-22 01:56:12,398 INFO L78 Accepts]: Start accepts. Automaton has 2595 states and 3839 transitions. Word has length 203 [2024-11-22 01:56:12,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:12,399 INFO L471 AbstractCegarLoop]: Abstraction has 2595 states and 3839 transitions. [2024-11-22 01:56:12,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-22 01:56:12,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2595 states and 3839 transitions. [2024-11-22 01:56:12,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-22 01:56:12,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:12,404 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:12,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 01:56:12,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:12,609 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:12,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:12,609 INFO L85 PathProgramCache]: Analyzing trace with hash 324828887, now seen corresponding path program 1 times [2024-11-22 01:56:12,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:12,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696231519] [2024-11-22 01:56:12,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:12,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:12,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:12,825 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-22 01:56:12,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:12,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696231519] [2024-11-22 01:56:12,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696231519] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:56:12,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624729036] [2024-11-22 01:56:12,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:12,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:12,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:56:12,828 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) [2024-11-22 01:56:12,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 01:56:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:13,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 1534 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 01:56:13,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:56:13,226 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-22 01:56:13,226 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:56:13,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624729036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:13,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:56:13,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-22 01:56:13,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871023546] [2024-11-22 01:56:13,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:13,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:56:13,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:13,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:56:13,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-22 01:56:13,228 INFO L87 Difference]: Start difference. First operand 2595 states and 3839 transitions. Second operand has 8 states, 6 states have (on average 19.666666666666668) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-22 01:56:13,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:13,366 INFO L93 Difference]: Finished difference Result 5067 states and 7542 transitions. [2024-11-22 01:56:13,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:56:13,367 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 19.666666666666668) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 196 [2024-11-22 01:56:13,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:13,378 INFO L225 Difference]: With dead ends: 5067 [2024-11-22 01:56:13,379 INFO L226 Difference]: Without dead ends: 2603 [2024-11-22 01:56:13,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-22 01:56:13,385 INFO L432 NwaCegarLoop]: 851 mSDtfsCounter, 4 mSDsluCounter, 5089 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5940 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:13,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5940 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:13,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states. [2024-11-22 01:56:13,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 2603. [2024-11-22 01:56:13,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2603 states, 2009 states have (on average 1.4708810353409656) internal successors, (2955), 2038 states have internal predecessors, (2955), 420 states have call successors, (420), 170 states have call predecessors, (420), 173 states have return successors, (476), 414 states have call predecessors, (476), 414 states have call successors, (476) [2024-11-22 01:56:13,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2603 states to 2603 states and 3851 transitions. [2024-11-22 01:56:13,510 INFO L78 Accepts]: Start accepts. Automaton has 2603 states and 3851 transitions. Word has length 196 [2024-11-22 01:56:13,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:13,510 INFO L471 AbstractCegarLoop]: Abstraction has 2603 states and 3851 transitions. [2024-11-22 01:56:13,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 19.666666666666668) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-22 01:56:13,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2603 states and 3851 transitions. [2024-11-22 01:56:13,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-22 01:56:13,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:13,516 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:13,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 01:56:13,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-22 01:56:13,721 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:13,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:13,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1880372696, now seen corresponding path program 1 times [2024-11-22 01:56:13,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:13,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719511152] [2024-11-22 01:56:13,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:13,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:14,167 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-22 01:56:14,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:14,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719511152] [2024-11-22 01:56:14,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719511152] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:56:14,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140420607] [2024-11-22 01:56:14,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:14,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:14,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:56:14,169 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) [2024-11-22 01:56:14,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 01:56:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:14,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 1535 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 01:56:14,492 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:56:14,578 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-22 01:56:14,582 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:56:14,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140420607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:14,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:56:14,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-11-22 01:56:14,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846557315] [2024-11-22 01:56:14,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:14,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:56:14,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:14,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:56:14,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:56:14,585 INFO L87 Difference]: Start difference. First operand 2603 states and 3851 transitions. Second operand has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-22 01:56:14,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:14,787 INFO L93 Difference]: Finished difference Result 5071 states and 7558 transitions. [2024-11-22 01:56:14,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:56:14,788 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 197 [2024-11-22 01:56:14,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:14,807 INFO L225 Difference]: With dead ends: 5071 [2024-11-22 01:56:14,807 INFO L226 Difference]: Without dead ends: 2611 [2024-11-22 01:56:14,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:56:14,818 INFO L432 NwaCegarLoop]: 851 mSDtfsCounter, 2 mSDsluCounter, 3387 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4238 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:14,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4238 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:56:14,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2024-11-22 01:56:15,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2611. [2024-11-22 01:56:15,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2013 states have (on average 1.469945355191257) internal successors, (2959), 2046 states have internal predecessors, (2959), 420 states have call successors, (420), 170 states have call predecessors, (420), 177 states have return successors, (496), 414 states have call predecessors, (496), 414 states have call successors, (496) [2024-11-22 01:56:15,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 3875 transitions. [2024-11-22 01:56:15,028 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 3875 transitions. Word has length 197 [2024-11-22 01:56:15,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:15,029 INFO L471 AbstractCegarLoop]: Abstraction has 2611 states and 3875 transitions. [2024-11-22 01:56:15,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-22 01:56:15,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 3875 transitions. [2024-11-22 01:56:15,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-22 01:56:15,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:15,039 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:15,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 01:56:15,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:15,244 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:15,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:15,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1306528101, now seen corresponding path program 1 times [2024-11-22 01:56:15,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:15,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021222397] [2024-11-22 01:56:15,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:15,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:15,474 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-22 01:56:15,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:15,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021222397] [2024-11-22 01:56:15,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021222397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:15,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:15,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:56:15,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417764893] [2024-11-22 01:56:15,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:15,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:56:15,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:15,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:56:15,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:56:15,477 INFO L87 Difference]: Start difference. First operand 2611 states and 3875 transitions. Second operand has 8 states, 6 states have (on average 19.333333333333332) internal successors, (116), 8 states have internal predecessors, (116), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-22 01:56:15,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:15,699 INFO L93 Difference]: Finished difference Result 5023 states and 7506 transitions. [2024-11-22 01:56:15,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:56:15,700 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 19.333333333333332) internal successors, (116), 8 states have internal predecessors, (116), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 198 [2024-11-22 01:56:15,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:15,717 INFO L225 Difference]: With dead ends: 5023 [2024-11-22 01:56:15,717 INFO L226 Difference]: Without dead ends: 2611 [2024-11-22 01:56:15,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:56:15,726 INFO L432 NwaCegarLoop]: 852 mSDtfsCounter, 4 mSDsluCounter, 5095 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5947 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:15,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5947 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:15,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2024-11-22 01:56:15,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2611. [2024-11-22 01:56:15,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2013 states have (on average 1.469945355191257) internal successors, (2959), 2046 states have internal predecessors, (2959), 420 states have call successors, (420), 170 states have call predecessors, (420), 177 states have return successors, (492), 414 states have call predecessors, (492), 414 states have call successors, (492) [2024-11-22 01:56:15,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 3871 transitions. [2024-11-22 01:56:15,861 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 3871 transitions. Word has length 198 [2024-11-22 01:56:15,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:15,862 INFO L471 AbstractCegarLoop]: Abstraction has 2611 states and 3871 transitions. [2024-11-22 01:56:15,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 19.333333333333332) internal successors, (116), 8 states have internal predecessors, (116), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-22 01:56:15,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 3871 transitions. [2024-11-22 01:56:15,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-22 01:56:15,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:15,872 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:15,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 01:56:15,872 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:15,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:15,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1187164808, now seen corresponding path program 2 times [2024-11-22 01:56:15,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:15,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25826014] [2024-11-22 01:56:15,873 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 01:56:15,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:15,917 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 01:56:15,917 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 01:56:16,116 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-22 01:56:16,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:16,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25826014] [2024-11-22 01:56:16,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25826014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:16,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:16,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:56:16,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139730000] [2024-11-22 01:56:16,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:16,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:56:16,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:16,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:56:16,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:56:16,119 INFO L87 Difference]: Start difference. First operand 2611 states and 3871 transitions. Second operand has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-22 01:56:16,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:16,346 INFO L93 Difference]: Finished difference Result 5011 states and 7482 transitions. [2024-11-22 01:56:16,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:56:16,347 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 199 [2024-11-22 01:56:16,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:16,367 INFO L225 Difference]: With dead ends: 5011 [2024-11-22 01:56:16,367 INFO L226 Difference]: Without dead ends: 2611 [2024-11-22 01:56:16,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:56:16,378 INFO L432 NwaCegarLoop]: 852 mSDtfsCounter, 2 mSDsluCounter, 3391 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4243 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:16,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4243 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:16,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2024-11-22 01:56:16,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2611. [2024-11-22 01:56:16,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2013 states have (on average 1.469945355191257) internal successors, (2959), 2046 states have internal predecessors, (2959), 420 states have call successors, (420), 170 states have call predecessors, (420), 177 states have return successors, (488), 414 states have call predecessors, (488), 414 states have call successors, (488) [2024-11-22 01:56:16,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 3867 transitions. [2024-11-22 01:56:16,559 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 3867 transitions. Word has length 199 [2024-11-22 01:56:16,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:16,560 INFO L471 AbstractCegarLoop]: Abstraction has 2611 states and 3867 transitions. [2024-11-22 01:56:16,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-22 01:56:16,561 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 3867 transitions. [2024-11-22 01:56:16,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-22 01:56:16,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:16,571 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:16,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 01:56:16,571 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:16,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:16,572 INFO L85 PathProgramCache]: Analyzing trace with hash 529111111, now seen corresponding path program 3 times [2024-11-22 01:56:16,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:16,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10998102] [2024-11-22 01:56:16,572 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 01:56:16,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:16,617 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-22 01:56:16,618 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 01:56:16,874 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-22 01:56:16,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:16,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10998102] [2024-11-22 01:56:16,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10998102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:16,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:16,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:56:16,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335830892] [2024-11-22 01:56:16,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:16,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:56:16,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:16,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:56:16,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:56:16,878 INFO L87 Difference]: Start difference. First operand 2611 states and 3867 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 4 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-22 01:56:17,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:17,876 INFO L93 Difference]: Finished difference Result 6593 states and 9766 transitions. [2024-11-22 01:56:17,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 01:56:17,881 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 4 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) Word has length 200 [2024-11-22 01:56:17,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:17,929 INFO L225 Difference]: With dead ends: 6593 [2024-11-22 01:56:17,929 INFO L226 Difference]: Without dead ends: 5381 [2024-11-22 01:56:17,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:56:17,936 INFO L432 NwaCegarLoop]: 1174 mSDtfsCounter, 1352 mSDsluCounter, 3837 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 5011 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:17,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 5011 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 01:56:17,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5381 states. [2024-11-22 01:56:18,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5381 to 5349. [2024-11-22 01:56:18,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5349 states, 4005 states have (on average 1.4414481897627964) internal successors, (5773), 4100 states have internal predecessors, (5773), 892 states have call successors, (892), 440 states have call predecessors, (892), 451 states have return successors, (1152), 870 states have call predecessors, (1152), 854 states have call successors, (1152) [2024-11-22 01:56:18,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5349 states to 5349 states and 7817 transitions. [2024-11-22 01:56:18,241 INFO L78 Accepts]: Start accepts. Automaton has 5349 states and 7817 transitions. Word has length 200 [2024-11-22 01:56:18,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:18,242 INFO L471 AbstractCegarLoop]: Abstraction has 5349 states and 7817 transitions. [2024-11-22 01:56:18,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 4 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-22 01:56:18,243 INFO L276 IsEmpty]: Start isEmpty. Operand 5349 states and 7817 transitions. [2024-11-22 01:56:18,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-22 01:56:18,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:18,253 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:18,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 01:56:18,254 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:18,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:18,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1598499737, now seen corresponding path program 1 times [2024-11-22 01:56:18,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:18,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633615251] [2024-11-22 01:56:18,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:18,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:18,646 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-22 01:56:18,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:18,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633615251] [2024-11-22 01:56:18,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633615251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:18,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:18,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:56:18,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926610906] [2024-11-22 01:56:18,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:18,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:56:18,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:18,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:56:18,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:56:18,649 INFO L87 Difference]: Start difference. First operand 5349 states and 7817 transitions. Second operand has 8 states, 6 states have (on average 19.666666666666668) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-22 01:56:19,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:19,032 INFO L93 Difference]: Finished difference Result 10507 states and 15410 transitions. [2024-11-22 01:56:19,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:56:19,033 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 19.666666666666668) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 201 [2024-11-22 01:56:19,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:19,084 INFO L225 Difference]: With dead ends: 10507 [2024-11-22 01:56:19,084 INFO L226 Difference]: Without dead ends: 5357 [2024-11-22 01:56:19,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:56:19,104 INFO L432 NwaCegarLoop]: 853 mSDtfsCounter, 3 mSDsluCounter, 5100 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5953 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:19,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5953 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:56:19,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5357 states. [2024-11-22 01:56:19,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5357 to 5357. [2024-11-22 01:56:19,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5357 states, 4009 states have (on average 1.4410077326016464) internal successors, (5777), 4108 states have internal predecessors, (5777), 892 states have call successors, (892), 440 states have call predecessors, (892), 455 states have return successors, (1160), 870 states have call predecessors, (1160), 854 states have call successors, (1160) [2024-11-22 01:56:19,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5357 states to 5357 states and 7829 transitions. [2024-11-22 01:56:19,419 INFO L78 Accepts]: Start accepts. Automaton has 5357 states and 7829 transitions. Word has length 201 [2024-11-22 01:56:19,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:19,420 INFO L471 AbstractCegarLoop]: Abstraction has 5357 states and 7829 transitions. [2024-11-22 01:56:19,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 19.666666666666668) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-22 01:56:19,421 INFO L276 IsEmpty]: Start isEmpty. Operand 5357 states and 7829 transitions. [2024-11-22 01:56:19,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-22 01:56:19,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:19,432 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:19,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 01:56:19,433 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:19,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:19,433 INFO L85 PathProgramCache]: Analyzing trace with hash 2043603845, now seen corresponding path program 1 times [2024-11-22 01:56:19,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:19,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307849779] [2024-11-22 01:56:19,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:19,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:19,728 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-22 01:56:19,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:19,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307849779] [2024-11-22 01:56:19,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307849779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:19,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:19,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 01:56:19,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252205010] [2024-11-22 01:56:19,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:19,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 01:56:19,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:19,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 01:56:19,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:56:19,731 INFO L87 Difference]: Start difference. First operand 5357 states and 7829 transitions. Second operand has 9 states, 7 states have (on average 17.571428571428573) internal successors, (123), 8 states have internal predecessors, (123), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-22 01:56:20,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:20,069 INFO L93 Difference]: Finished difference Result 10503 states and 15418 transitions. [2024-11-22 01:56:20,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 01:56:20,070 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 17.571428571428573) internal successors, (123), 8 states have internal predecessors, (123), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 202 [2024-11-22 01:56:20,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:20,105 INFO L225 Difference]: With dead ends: 10503 [2024-11-22 01:56:20,105 INFO L226 Difference]: Without dead ends: 5365 [2024-11-22 01:56:20,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:56:20,126 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 4 mSDsluCounter, 5899 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6746 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:20,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6746 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:56:20,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5365 states. [2024-11-22 01:56:20,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5365 to 5365. [2024-11-22 01:56:20,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5365 states, 4013 states have (on average 1.4405681535011214) internal successors, (5781), 4116 states have internal predecessors, (5781), 892 states have call successors, (892), 440 states have call predecessors, (892), 459 states have return successors, (1180), 870 states have call predecessors, (1180), 854 states have call successors, (1180) [2024-11-22 01:56:20,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5365 states to 5365 states and 7853 transitions. [2024-11-22 01:56:20,430 INFO L78 Accepts]: Start accepts. Automaton has 5365 states and 7853 transitions. Word has length 202 [2024-11-22 01:56:20,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:20,432 INFO L471 AbstractCegarLoop]: Abstraction has 5365 states and 7853 transitions. [2024-11-22 01:56:20,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 17.571428571428573) internal successors, (123), 8 states have internal predecessors, (123), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-22 01:56:20,432 INFO L276 IsEmpty]: Start isEmpty. Operand 5365 states and 7853 transitions. [2024-11-22 01:56:20,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-22 01:56:20,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:20,519 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:20,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 01:56:20,519 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:20,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:20,520 INFO L85 PathProgramCache]: Analyzing trace with hash -41191885, now seen corresponding path program 1 times [2024-11-22 01:56:20,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:20,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952944121] [2024-11-22 01:56:20,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:20,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:20,762 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-22 01:56:20,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:20,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952944121] [2024-11-22 01:56:20,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952944121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:56:20,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215068725] [2024-11-22 01:56:20,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:20,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:20,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:56:20,767 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:56:20,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 01:56:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:21,130 INFO L255 TraceCheckSpWp]: Trace formula consists of 1541 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:56:21,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:56:21,156 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-22 01:56:21,156 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 01:56:21,262 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-22 01:56:21,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215068725] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 01:56:21,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 01:56:21,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-22 01:56:21,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891973297] [2024-11-22 01:56:21,263 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 01:56:21,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:56:21,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:21,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:56:21,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:56:21,265 INFO L87 Difference]: Start difference. First operand 5365 states and 7853 transitions. Second operand has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-22 01:56:21,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:21,651 INFO L93 Difference]: Finished difference Result 11743 states and 17467 transitions. [2024-11-22 01:56:21,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:56:21,652 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 203 [2024-11-22 01:56:21,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:21,686 INFO L225 Difference]: With dead ends: 11743 [2024-11-22 01:56:21,686 INFO L226 Difference]: Without dead ends: 7761 [2024-11-22 01:56:21,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:56:21,702 INFO L432 NwaCegarLoop]: 909 mSDtfsCounter, 634 mSDsluCounter, 2790 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 3699 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:21,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 3699 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:56:21,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7761 states. [2024-11-22 01:56:21,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7761 to 7521. [2024-11-22 01:56:21,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7521 states, 5853 states have (on average 1.4824876131898173) internal successors, (8677), 5956 states have internal predecessors, (8677), 1208 states have call successors, (1208), 440 states have call predecessors, (1208), 459 states have return successors, (1536), 1186 states have call predecessors, (1536), 1170 states have call successors, (1536) [2024-11-22 01:56:21,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7521 states to 7521 states and 11421 transitions. [2024-11-22 01:56:21,974 INFO L78 Accepts]: Start accepts. Automaton has 7521 states and 11421 transitions. Word has length 203 [2024-11-22 01:56:21,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:21,975 INFO L471 AbstractCegarLoop]: Abstraction has 7521 states and 11421 transitions. [2024-11-22 01:56:21,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-22 01:56:21,975 INFO L276 IsEmpty]: Start isEmpty. Operand 7521 states and 11421 transitions. [2024-11-22 01:56:21,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-22 01:56:21,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:21,990 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:21,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-22 01:56:22,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:56:22,191 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:22,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:22,191 INFO L85 PathProgramCache]: Analyzing trace with hash 848627089, now seen corresponding path program 1 times [2024-11-22 01:56:22,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:22,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7465581] [2024-11-22 01:56:22,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:22,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:22,361 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-22 01:56:22,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:22,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7465581] [2024-11-22 01:56:22,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7465581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:22,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:22,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:22,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699827828] [2024-11-22 01:56:22,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:22,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:22,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:22,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:22,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:22,364 INFO L87 Difference]: Start difference. First operand 7521 states and 11421 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:56:22,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:22,556 INFO L93 Difference]: Finished difference Result 16675 states and 25625 transitions. [2024-11-22 01:56:22,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:22,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 207 [2024-11-22 01:56:22,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:22,599 INFO L225 Difference]: With dead ends: 16675 [2024-11-22 01:56:22,599 INFO L226 Difference]: Without dead ends: 9605 [2024-11-22 01:56:22,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:22,620 INFO L432 NwaCegarLoop]: 872 mSDtfsCounter, 163 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:22,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1720 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:22,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9605 states. [2024-11-22 01:56:22,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9605 to 9525. [2024-11-22 01:56:22,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9525 states, 7541 states have (on average 1.4986076117225833) internal successors, (11301), 7644 states have internal predecessors, (11301), 1524 states have call successors, (1524), 440 states have call predecessors, (1524), 459 states have return successors, (1892), 1502 states have call predecessors, (1892), 1486 states have call successors, (1892) [2024-11-22 01:56:22,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9525 states to 9525 states and 14717 transitions. [2024-11-22 01:56:22,925 INFO L78 Accepts]: Start accepts. Automaton has 9525 states and 14717 transitions. Word has length 207 [2024-11-22 01:56:22,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:22,925 INFO L471 AbstractCegarLoop]: Abstraction has 9525 states and 14717 transitions. [2024-11-22 01:56:22,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:56:22,926 INFO L276 IsEmpty]: Start isEmpty. Operand 9525 states and 14717 transitions. [2024-11-22 01:56:22,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-22 01:56:22,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:22,958 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:22,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 01:56:22,958 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:22,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:22,958 INFO L85 PathProgramCache]: Analyzing trace with hash 2136309204, now seen corresponding path program 1 times [2024-11-22 01:56:22,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:22,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636454492] [2024-11-22 01:56:22,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:22,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:23,023 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-22 01:56:23,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:23,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636454492] [2024-11-22 01:56:23,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636454492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:23,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:23,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:23,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380700736] [2024-11-22 01:56:23,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:23,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:23,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:23,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:23,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:23,025 INFO L87 Difference]: Start difference. First operand 9525 states and 14717 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:56:23,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:23,308 INFO L93 Difference]: Finished difference Result 21663 states and 33789 transitions. [2024-11-22 01:56:23,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:23,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 208 [2024-11-22 01:56:23,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:23,350 INFO L225 Difference]: With dead ends: 21663 [2024-11-22 01:56:23,351 INFO L226 Difference]: Without dead ends: 12841 [2024-11-22 01:56:23,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:23,374 INFO L432 NwaCegarLoop]: 865 mSDtfsCounter, 161 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:23,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1718 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:23,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12841 states. [2024-11-22 01:56:23,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12841 to 12761. [2024-11-22 01:56:23,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12761 states, 10301 states have (on average 1.516454713134647) internal successors, (15621), 10404 states have internal predecessors, (15621), 2000 states have call successors, (2000), 440 states have call predecessors, (2000), 459 states have return successors, (2368), 1978 states have call predecessors, (2368), 1962 states have call successors, (2368) [2024-11-22 01:56:23,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12761 states to 12761 states and 19989 transitions. [2024-11-22 01:56:23,856 INFO L78 Accepts]: Start accepts. Automaton has 12761 states and 19989 transitions. Word has length 208 [2024-11-22 01:56:23,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:23,857 INFO L471 AbstractCegarLoop]: Abstraction has 12761 states and 19989 transitions. [2024-11-22 01:56:23,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:56:23,857 INFO L276 IsEmpty]: Start isEmpty. Operand 12761 states and 19989 transitions. [2024-11-22 01:56:23,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-22 01:56:23,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:23,883 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:23,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 01:56:23,884 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:23,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:23,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1910890328, now seen corresponding path program 1 times [2024-11-22 01:56:23,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:23,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416654418] [2024-11-22 01:56:23,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:23,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:23,952 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-22 01:56:23,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:23,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416654418] [2024-11-22 01:56:23,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416654418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:23,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:23,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:23,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234149746] [2024-11-22 01:56:23,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:23,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:23,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:23,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:23,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:23,953 INFO L87 Difference]: Start difference. First operand 12761 states and 19989 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:56:24,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:24,277 INFO L93 Difference]: Finished difference Result 29259 states and 46281 transitions. [2024-11-22 01:56:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:24,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 209 [2024-11-22 01:56:24,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:24,341 INFO L225 Difference]: With dead ends: 29259 [2024-11-22 01:56:24,342 INFO L226 Difference]: Without dead ends: 17829 [2024-11-22 01:56:24,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:24,372 INFO L432 NwaCegarLoop]: 861 mSDtfsCounter, 159 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:24,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1711 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:24,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17829 states. [2024-11-22 01:56:25,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17829 to 17749. [2024-11-22 01:56:25,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17749 states, 14641 states have (on average 1.532477289802609) internal successors, (22437), 14744 states have internal predecessors, (22437), 2648 states have call successors, (2648), 440 states have call predecessors, (2648), 459 states have return successors, (3080), 2626 states have call predecessors, (3080), 2610 states have call successors, (3080) [2024-11-22 01:56:25,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17749 states to 17749 states and 28165 transitions. [2024-11-22 01:56:25,306 INFO L78 Accepts]: Start accepts. Automaton has 17749 states and 28165 transitions. Word has length 209 [2024-11-22 01:56:25,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:25,307 INFO L471 AbstractCegarLoop]: Abstraction has 17749 states and 28165 transitions. [2024-11-22 01:56:25,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:56:25,307 INFO L276 IsEmpty]: Start isEmpty. Operand 17749 states and 28165 transitions. [2024-11-22 01:56:25,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-22 01:56:25,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:25,349 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:25,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 01:56:25,350 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:25,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:25,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1451519676, now seen corresponding path program 1 times [2024-11-22 01:56:25,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:25,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534936433] [2024-11-22 01:56:25,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:25,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:25,428 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-22 01:56:25,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:25,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534936433] [2024-11-22 01:56:25,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534936433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:25,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:25,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:25,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019011212] [2024-11-22 01:56:25,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:25,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:25,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:25,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:25,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:25,433 INFO L87 Difference]: Start difference. First operand 17749 states and 28165 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:56:26,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:26,026 INFO L93 Difference]: Finished difference Result 41267 states and 66089 transitions. [2024-11-22 01:56:26,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:26,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 210 [2024-11-22 01:56:26,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:26,130 INFO L225 Difference]: With dead ends: 41267 [2024-11-22 01:56:26,130 INFO L226 Difference]: Without dead ends: 25885 [2024-11-22 01:56:26,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:26,178 INFO L432 NwaCegarLoop]: 861 mSDtfsCounter, 157 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:26,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1711 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:26,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25885 states. [2024-11-22 01:56:27,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25885 to 25805. [2024-11-22 01:56:27,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25805 states, 21717 states have (on average 1.5463001335359396) internal successors, (33581), 21820 states have internal predecessors, (33581), 3628 states have call successors, (3628), 440 states have call predecessors, (3628), 459 states have return successors, (4164), 3606 states have call predecessors, (4164), 3590 states have call successors, (4164) [2024-11-22 01:56:27,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25805 states to 25805 states and 41373 transitions. [2024-11-22 01:56:27,240 INFO L78 Accepts]: Start accepts. Automaton has 25805 states and 41373 transitions. Word has length 210 [2024-11-22 01:56:27,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:27,241 INFO L471 AbstractCegarLoop]: Abstraction has 25805 states and 41373 transitions. [2024-11-22 01:56:27,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:56:27,241 INFO L276 IsEmpty]: Start isEmpty. Operand 25805 states and 41373 transitions. [2024-11-22 01:56:27,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-22 01:56:27,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:27,287 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:27,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 01:56:27,287 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:27,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:27,288 INFO L85 PathProgramCache]: Analyzing trace with hash -345299379, now seen corresponding path program 1 times [2024-11-22 01:56:27,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:27,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514027666] [2024-11-22 01:56:27,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:27,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:27,356 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-22 01:56:27,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:27,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514027666] [2024-11-22 01:56:27,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514027666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:27,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:27,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:27,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911651022] [2024-11-22 01:56:27,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:27,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:27,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:27,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:27,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:27,359 INFO L87 Difference]: Start difference. First operand 25805 states and 41373 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:56:28,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:28,406 INFO L93 Difference]: Finished difference Result 61239 states and 98881 transitions. [2024-11-22 01:56:28,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:28,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 211 [2024-11-22 01:56:28,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:28,738 INFO L225 Difference]: With dead ends: 61239 [2024-11-22 01:56:28,739 INFO L226 Difference]: Without dead ends: 39385 [2024-11-22 01:56:28,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:28,797 INFO L432 NwaCegarLoop]: 866 mSDtfsCounter, 155 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:28,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 1713 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:28,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39385 states. [2024-11-22 01:56:30,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39385 to 39305. [2024-11-22 01:56:30,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39305 states, 33245 states have (on average 1.5484132952323657) internal successors, (51477), 33348 states have internal predecessors, (51477), 5600 states have call successors, (5600), 440 states have call predecessors, (5600), 459 states have return successors, (6312), 5578 states have call predecessors, (6312), 5562 states have call successors, (6312) [2024-11-22 01:56:30,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39305 states to 39305 states and 63389 transitions. [2024-11-22 01:56:30,654 INFO L78 Accepts]: Start accepts. Automaton has 39305 states and 63389 transitions. Word has length 211 [2024-11-22 01:56:30,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:30,655 INFO L471 AbstractCegarLoop]: Abstraction has 39305 states and 63389 transitions. [2024-11-22 01:56:30,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:56:30,655 INFO L276 IsEmpty]: Start isEmpty. Operand 39305 states and 63389 transitions. [2024-11-22 01:56:30,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-22 01:56:30,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:30,728 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:30,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 01:56:30,728 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:30,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:30,729 INFO L85 PathProgramCache]: Analyzing trace with hash 189293511, now seen corresponding path program 1 times [2024-11-22 01:56:30,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:30,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805487122] [2024-11-22 01:56:30,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:30,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:30,795 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-22 01:56:30,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:30,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805487122] [2024-11-22 01:56:30,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805487122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:30,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:30,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:30,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068201306] [2024-11-22 01:56:30,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:30,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:30,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:30,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:30,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:30,798 INFO L87 Difference]: Start difference. First operand 39305 states and 63389 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:56:32,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:32,422 INFO L93 Difference]: Finished difference Result 97051 states and 157941 transitions. [2024-11-22 01:56:32,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:32,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 212 [2024-11-22 01:56:32,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:32,645 INFO L225 Difference]: With dead ends: 97051 [2024-11-22 01:56:32,645 INFO L226 Difference]: Without dead ends: 63681 [2024-11-22 01:56:32,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:32,702 INFO L432 NwaCegarLoop]: 863 mSDtfsCounter, 153 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:32,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 1716 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:32,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63681 states. [2024-11-22 01:56:35,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63681 to 63601. [2024-11-22 01:56:35,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63601 states, 54253 states have (on average 1.55724107422631) internal successors, (84485), 54356 states have internal predecessors, (84485), 8888 states have call successors, (8888), 440 states have call predecessors, (8888), 459 states have return successors, (9912), 8866 states have call predecessors, (9912), 8850 states have call successors, (9912) [2024-11-22 01:56:35,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63601 states to 63601 states and 103285 transitions. [2024-11-22 01:56:35,467 INFO L78 Accepts]: Start accepts. Automaton has 63601 states and 103285 transitions. Word has length 212 [2024-11-22 01:56:35,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:35,469 INFO L471 AbstractCegarLoop]: Abstraction has 63601 states and 103285 transitions. [2024-11-22 01:56:35,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:56:35,469 INFO L276 IsEmpty]: Start isEmpty. Operand 63601 states and 103285 transitions. [2024-11-22 01:56:35,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-22 01:56:35,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:35,963 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:35,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 01:56:35,964 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:35,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:35,964 INFO L85 PathProgramCache]: Analyzing trace with hash -951356812, now seen corresponding path program 1 times [2024-11-22 01:56:35,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:35,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405688722] [2024-11-22 01:56:35,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:35,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:36,034 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-22 01:56:36,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:36,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405688722] [2024-11-22 01:56:36,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405688722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:36,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:36,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:36,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437825542] [2024-11-22 01:56:36,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:36,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:36,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:36,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:36,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:36,038 INFO L87 Difference]: Start difference. First operand 63601 states and 103285 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:56:38,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:38,438 INFO L93 Difference]: Finished difference Result 152287 states and 246353 transitions. [2024-11-22 01:56:38,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:38,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 213 [2024-11-22 01:56:38,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:38,779 INFO L225 Difference]: With dead ends: 152287 [2024-11-22 01:56:38,779 INFO L226 Difference]: Without dead ends: 99157 [2024-11-22 01:56:38,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:38,892 INFO L432 NwaCegarLoop]: 874 mSDtfsCounter, 151 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:38,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1699 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:38,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99157 states. [2024-11-22 01:56:43,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99157 to 99077. [2024-11-22 01:56:43,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99077 states, 84917 states have (on average 1.5327555142079914) internal successors, (130157), 85020 states have internal predecessors, (130157), 13700 states have call successors, (13700), 440 states have call predecessors, (13700), 459 states have return successors, (15300), 13678 states have call predecessors, (15300), 13662 states have call successors, (15300) [2024-11-22 01:56:43,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99077 states to 99077 states and 159157 transitions. [2024-11-22 01:56:43,791 INFO L78 Accepts]: Start accepts. Automaton has 99077 states and 159157 transitions. Word has length 213 [2024-11-22 01:56:43,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:43,791 INFO L471 AbstractCegarLoop]: Abstraction has 99077 states and 159157 transitions. [2024-11-22 01:56:43,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:56:43,792 INFO L276 IsEmpty]: Start isEmpty. Operand 99077 states and 159157 transitions. [2024-11-22 01:56:44,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-22 01:56:44,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:44,006 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:44,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 01:56:44,007 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:44,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:44,007 INFO L85 PathProgramCache]: Analyzing trace with hash -137531953, now seen corresponding path program 1 times [2024-11-22 01:56:44,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:44,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586105039] [2024-11-22 01:56:44,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:44,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:56:44,103 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-22 01:56:44,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:56:44,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586105039] [2024-11-22 01:56:44,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586105039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:56:44,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:56:44,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:56:44,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907193957] [2024-11-22 01:56:44,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:56:44,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:56:44,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:56:44,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:56:44,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:44,105 INFO L87 Difference]: Start difference. First operand 99077 states and 159157 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:56:49,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:56:49,484 INFO L93 Difference]: Finished difference Result 259699 states and 418945 transitions. [2024-11-22 01:56:49,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:56:49,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 214 [2024-11-22 01:56:49,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:56:50,201 INFO L225 Difference]: With dead ends: 259699 [2024-11-22 01:56:50,202 INFO L226 Difference]: Without dead ends: 174341 [2024-11-22 01:56:50,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:56:50,385 INFO L432 NwaCegarLoop]: 861 mSDtfsCounter, 149 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1715 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:56:50,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 1715 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:56:50,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174341 states. [2024-11-22 01:56:58,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174341 to 174261. [2024-11-22 01:56:58,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174261 states, 150301 states have (on average 1.5339685032035715) internal successors, (230557), 150404 states have internal predecessors, (230557), 23500 states have call successors, (23500), 440 states have call predecessors, (23500), 459 states have return successors, (26196), 23478 states have call predecessors, (26196), 23462 states have call successors, (26196) [2024-11-22 01:56:59,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174261 states to 174261 states and 280253 transitions. [2024-11-22 01:56:59,589 INFO L78 Accepts]: Start accepts. Automaton has 174261 states and 280253 transitions. Word has length 214 [2024-11-22 01:56:59,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:56:59,590 INFO L471 AbstractCegarLoop]: Abstraction has 174261 states and 280253 transitions. [2024-11-22 01:56:59,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:56:59,590 INFO L276 IsEmpty]: Start isEmpty. Operand 174261 states and 280253 transitions. [2024-11-22 01:56:59,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-22 01:56:59,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:56:59,789 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:56:59,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 01:56:59,790 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:56:59,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:56:59,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1062016711, now seen corresponding path program 1 times [2024-11-22 01:56:59,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:56:59,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570172723] [2024-11-22 01:56:59,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:56:59,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:56:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:57:00,000 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-22 01:57:00,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:57:00,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570172723] [2024-11-22 01:57:00,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570172723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:57:00,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:57:00,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:57:00,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675228992] [2024-11-22 01:57:00,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:57:00,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:57:00,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:57:00,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:57:00,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:00,003 INFO L87 Difference]: Start difference. First operand 174261 states and 280253 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:57:08,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:57:08,833 INFO L93 Difference]: Finished difference Result 470347 states and 760633 transitions. [2024-11-22 01:57:08,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:57:08,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 215 [2024-11-22 01:57:08,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:57:10,913 INFO L225 Difference]: With dead ends: 470347 [2024-11-22 01:57:10,913 INFO L226 Difference]: Without dead ends: 314509 [2024-11-22 01:57:11,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:57:11,268 INFO L432 NwaCegarLoop]: 866 mSDtfsCounter, 147 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:57:11,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1719 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:57:11,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314509 states.