./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec0_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_spec0_product33.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 6a2f1102c08ad072b808cfc472937f1cd1560bb61fc22de7fb77e42f10991bfd --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 14:56:56,278 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 14:56:56,354 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 14:56:56,358 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 14:56:56,359 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 14:56:56,388 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 14:56:56,389 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 14:56:56,390 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 14:56:56,391 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 14:56:56,391 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 14:56:56,392 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 14:56:56,392 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 14:56:56,393 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 14:56:56,393 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 14:56:56,393 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 14:56:56,394 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 14:56:56,394 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 14:56:56,394 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 14:56:56,395 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 14:56:56,395 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 14:56:56,398 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 14:56:56,400 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 14:56:56,400 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 14:56:56,401 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 14:56:56,401 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 14:56:56,401 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 14:56:56,402 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 14:56:56,402 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 14:56:56,402 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 14:56:56,403 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 14:56:56,403 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 14:56:56,404 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 14:56:56,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:56:56,405 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 14:56:56,405 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 14:56:56,405 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 14:56:56,405 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 14:56:56,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 14:56:56,406 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 14:56:56,406 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 14:56:56,406 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 14:56:56,406 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 14:56:56,407 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a2f1102c08ad072b808cfc472937f1cd1560bb61fc22de7fb77e42f10991bfd [2024-11-08 14:56:56,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 14:56:56,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 14:56:56,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 14:56:56,679 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 14:56:56,679 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 14:56:56,680 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec0_product33.cil.c [2024-11-08 14:56:58,134 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 14:56:58,423 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 14:56:58,423 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product33.cil.c [2024-11-08 14:56:58,445 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30adf4718/b1abb1ac279640fc831584c3e45abdf9/FLAGba9dc6383 [2024-11-08 14:56:58,712 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30adf4718/b1abb1ac279640fc831584c3e45abdf9 [2024-11-08 14:56:58,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 14:56:58,716 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 14:56:58,717 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 14:56:58,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 14:56:58,723 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 14:56:58,724 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:56:58" (1/1) ... [2024-11-08 14:56:58,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@122f8480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:56:58, skipping insertion in model container [2024-11-08 14:56:58,725 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:56:58" (1/1) ... [2024-11-08 14:56:58,794 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 14:56:59,203 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_spec0_product33.cil.c[31228,31241] [2024-11-08 14:56:59,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:56:59,472 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 14:56:59,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2024-11-08 14:56:59,484 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1128] [2024-11-08 14:56:59,484 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1288] [2024-11-08 14:56:59,484 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1326] [2024-11-08 14:56:59,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [1335] [2024-11-08 14:56:59,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1355] [2024-11-08 14:56:59,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1751] [2024-11-08 14:56:59,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1768] [2024-11-08 14:56:59,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2165] [2024-11-08 14:56:59,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2531] [2024-11-08 14:56:59,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2827] [2024-11-08 14:56:59,546 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_spec0_product33.cil.c[31228,31241] [2024-11-08 14:56:59,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:56:59,629 INFO L204 MainTranslator]: Completed translation [2024-11-08 14:56:59,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:56:59 WrapperNode [2024-11-08 14:56:59,629 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 14:56:59,630 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 14:56:59,630 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 14:56:59,630 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 14:56:59,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:56:59" (1/1) ... [2024-11-08 14:56:59,668 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:56:59" (1/1) ... [2024-11-08 14:56:59,725 INFO L138 Inliner]: procedures = 134, calls = 211, calls flagged for inlining = 65, calls inlined = 60, statements flattened = 1070 [2024-11-08 14:56:59,725 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 14:56:59,726 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 14:56:59,726 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 14:56:59,726 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 14:56:59,741 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:56:59" (1/1) ... [2024-11-08 14:56:59,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:56:59" (1/1) ... [2024-11-08 14:56:59,747 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:56:59" (1/1) ... [2024-11-08 14:56:59,782 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]. [2024-11-08 14:56:59,783 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:56:59" (1/1) ... [2024-11-08 14:56:59,783 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:56:59" (1/1) ... [2024-11-08 14:56:59,820 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:56:59" (1/1) ... [2024-11-08 14:56:59,836 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:56:59" (1/1) ... [2024-11-08 14:56:59,845 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:56:59" (1/1) ... [2024-11-08 14:56:59,854 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:56:59" (1/1) ... [2024-11-08 14:56:59,869 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 14:56:59,870 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 14:56:59,871 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 14:56:59,871 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 14:56:59,875 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:56:59" (1/1) ... [2024-11-08 14:56:59,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:56:59,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:56:59,919 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) [2024-11-08 14:56:59,922 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 [2024-11-08 14:56:59,974 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-08 14:56:59,974 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-08 14:56:59,974 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-08 14:56:59,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-08 14:56:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-08 14:56:59,975 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-08 14:56:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-08 14:56:59,975 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-08 14:56:59,976 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-08 14:56:59,976 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-08 14:56:59,976 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-08 14:56:59,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-08 14:56:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-08 14:56:59,977 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-08 14:56:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-08 14:56:59,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-08 14:56:59,977 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-08 14:56:59,978 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-08 14:56:59,978 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-08 14:56:59,979 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-08 14:56:59,979 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-08 14:56:59,979 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-08 14:56:59,979 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-08 14:56:59,979 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-08 14:56:59,979 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-08 14:56:59,980 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-08 14:56:59,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 14:56:59,980 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-08 14:56:59,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-08 14:56:59,980 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-08 14:56:59,982 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-08 14:56:59,982 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-08 14:56:59,983 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-08 14:56:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-08 14:56:59,983 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-08 14:56:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-08 14:56:59,983 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-08 14:56:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-08 14:56:59,983 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-08 14:56:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-08 14:56:59,984 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-08 14:56:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-08 14:56:59,984 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-08 14:56:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-08 14:56:59,984 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-08 14:56:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-08 14:56:59,984 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-08 14:56:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 14:56:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 14:56:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 14:56:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 14:56:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-08 14:56:59,985 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-08 14:56:59,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 14:56:59,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 14:57:00,209 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 14:57:00,212 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 14:57:01,123 INFO L? ?]: Removed 497 outVars from TransFormulas that were not future-live. [2024-11-08 14:57:01,123 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 14:57:01,154 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 14:57:01,154 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 14:57:01,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:57:01 BoogieIcfgContainer [2024-11-08 14:57:01,155 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 14:57:01,157 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 14:57:01,157 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 14:57:01,160 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 14:57:01,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 02:56:58" (1/3) ... [2024-11-08 14:57:01,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@389d29aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:57:01, skipping insertion in model container [2024-11-08 14:57:01,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:56:59" (2/3) ... [2024-11-08 14:57:01,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@389d29aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:57:01, skipping insertion in model container [2024-11-08 14:57:01,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:57:01" (3/3) ... [2024-11-08 14:57:01,162 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product33.cil.c [2024-11-08 14:57:01,196 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 14:57:01,197 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 14:57:01,268 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 14:57:01,275 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;@560714bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 14:57:01,275 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 14:57:01,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 385 states, 297 states have (on average 1.5016835016835017) internal successors, (446), 301 states have internal predecessors, (446), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-08 14:57:01,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-08 14:57:01,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:01,304 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:01,305 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:01,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:01,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1873468759, now seen corresponding path program 1 times [2024-11-08 14:57:01,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:01,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801153672] [2024-11-08 14:57:01,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:01,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 14:57:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 14:57:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 14:57:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 14:57:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 14:57:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 14:57:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:57:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 14:57:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 14:57:02,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 14:57:02,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 14:57:02,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 14:57:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-08 14:57:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-08 14:57:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,329 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-08 14:57:02,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:02,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801153672] [2024-11-08 14:57:02,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801153672] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:57:02,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653033628] [2024-11-08 14:57:02,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:02,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:57:02,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:57:02,334 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) [2024-11-08 14:57:02,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 14:57:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:02,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 1219 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 14:57:02,749 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:57:02,777 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-08 14:57:02,777 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:57:02,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653033628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:57:02,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:57:02,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-08 14:57:02,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579616748] [2024-11-08 14:57:02,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:57:02,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 14:57:02,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:02,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 14:57:02,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:57:02,829 INFO L87 Difference]: Start difference. First operand has 385 states, 297 states have (on average 1.5016835016835017) internal successors, (446), 301 states have internal predecessors, (446), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:02,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:57:02,903 INFO L93 Difference]: Finished difference Result 611 states and 886 transitions. [2024-11-08 14:57:02,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 14:57:02,905 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 149 [2024-11-08 14:57:02,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:57:02,918 INFO L225 Difference]: With dead ends: 611 [2024-11-08 14:57:02,919 INFO L226 Difference]: Without dead ends: 378 [2024-11-08 14:57:02,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:57:02,927 INFO L432 NwaCegarLoop]: 566 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, 566 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 [2024-11-08 14:57:02,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:57:02,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-08 14:57:02,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2024-11-08 14:57:02,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 291 states have (on average 1.4948453608247423) internal successors, (435), 294 states have internal predecessors, (435), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-08 14:57:02,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 558 transitions. [2024-11-08 14:57:02,989 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 558 transitions. Word has length 149 [2024-11-08 14:57:02,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:57:02,990 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 558 transitions. [2024-11-08 14:57:02,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.0) internal successors, (78), 2 states have internal predecessors, (78), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:02,990 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 558 transitions. [2024-11-08 14:57:02,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-08 14:57:02,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:02,995 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:03,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 14:57:03,195 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,SelfDestructingSolverStorable0 [2024-11-08 14:57:03,196 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:03,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:03,196 INFO L85 PathProgramCache]: Analyzing trace with hash 952972900, now seen corresponding path program 1 times [2024-11-08 14:57:03,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:03,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256153938] [2024-11-08 14:57:03,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:03,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 14:57:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 14:57:03,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 14:57:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 14:57:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 14:57:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 14:57:03,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 14:57:03,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 14:57:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 14:57:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 14:57:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 14:57:03,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 14:57:03,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-08 14:57:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 14:57:03,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,625 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-08 14:57:03,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:03,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256153938] [2024-11-08 14:57:03,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256153938] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:57:03,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802441807] [2024-11-08 14:57:03,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:03,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:57:03,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:57:03,629 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) [2024-11-08 14:57:03,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 14:57:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:03,978 INFO L255 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 14:57:03,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:57:04,022 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-08 14:57:04,024 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:57:04,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802441807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:57:04,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:57:04,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-08 14:57:04,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046769967] [2024-11-08 14:57:04,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:57:04,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 14:57:04,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:04,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 14:57:04,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:57:04,027 INFO L87 Difference]: Start difference. First operand 378 states and 558 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:04,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:57:04,083 INFO L93 Difference]: Finished difference Result 601 states and 867 transitions. [2024-11-08 14:57:04,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 14:57:04,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 150 [2024-11-08 14:57:04,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:57:04,090 INFO L225 Difference]: With dead ends: 601 [2024-11-08 14:57:04,092 INFO L226 Difference]: Without dead ends: 381 [2024-11-08 14:57:04,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:57:04,096 INFO L432 NwaCegarLoop]: 556 mSDtfsCounter, 1 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1110 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 [2024-11-08 14:57:04,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1110 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:57:04,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-08 14:57:04,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 380. [2024-11-08 14:57:04,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 293 states have (on average 1.4914675767918089) internal successors, (437), 296 states have internal predecessors, (437), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-08 14:57:04,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 560 transitions. [2024-11-08 14:57:04,139 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 560 transitions. Word has length 150 [2024-11-08 14:57:04,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:57:04,140 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 560 transitions. [2024-11-08 14:57:04,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:04,143 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 560 transitions. [2024-11-08 14:57:04,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-08 14:57:04,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:04,147 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:04,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 14:57:04,350 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,SelfDestructingSolverStorable1 [2024-11-08 14:57:04,351 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:04,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:04,352 INFO L85 PathProgramCache]: Analyzing trace with hash 2076245378, now seen corresponding path program 1 times [2024-11-08 14:57:04,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:04,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411033] [2024-11-08 14:57:04,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:04,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:04,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:04,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:04,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:04,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 14:57:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:04,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 14:57:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:04,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 14:57:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:04,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 14:57:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:04,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 14:57:04,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:04,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 14:57:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:04,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 14:57:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:04,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 14:57:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:04,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 14:57:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:04,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 14:57:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:04,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 14:57:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:04,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 14:57:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:04,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:04,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 14:57:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:04,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-08 14:57:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:04,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:04,688 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-08 14:57:04,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:04,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411033] [2024-11-08 14:57:04,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:57:04,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888869958] [2024-11-08 14:57:04,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:04,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:57:04,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:57:04,691 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) [2024-11-08 14:57:04,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 14:57:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 1245 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:57:05,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:57:05,079 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-08 14:57:05,080 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:57:05,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888869958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:57:05,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:57:05,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-08 14:57:05,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656878472] [2024-11-08 14:57:05,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:57:05,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 14:57:05,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:05,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 14:57:05,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:57:05,085 INFO L87 Difference]: Start difference. First operand 380 states and 560 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:05,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:57:05,114 INFO L93 Difference]: Finished difference Result 795 states and 1187 transitions. [2024-11-08 14:57:05,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 14:57:05,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 159 [2024-11-08 14:57:05,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:57:05,118 INFO L225 Difference]: With dead ends: 795 [2024-11-08 14:57:05,119 INFO L226 Difference]: Without dead ends: 442 [2024-11-08 14:57:05,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:57:05,121 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 115 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1082 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 [2024-11-08 14:57:05,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1082 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:57:05,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-11-08 14:57:05,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 434. [2024-11-08 14:57:05,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 336 states have (on average 1.5089285714285714) internal successors, (507), 339 states have internal predecessors, (507), 73 states have call successors, (73), 24 states have call predecessors, (73), 24 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-08 14:57:05,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 652 transitions. [2024-11-08 14:57:05,158 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 652 transitions. Word has length 159 [2024-11-08 14:57:05,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:57:05,160 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 652 transitions. [2024-11-08 14:57:05,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:05,160 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 652 transitions. [2024-11-08 14:57:05,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-08 14:57:05,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:05,165 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:05,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 14:57:05,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:57:05,366 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:05,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:05,367 INFO L85 PathProgramCache]: Analyzing trace with hash -95466447, now seen corresponding path program 1 times [2024-11-08 14:57:05,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:05,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407811459] [2024-11-08 14:57:05,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:05,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 14:57:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 14:57:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 14:57:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-08 14:57:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 14:57:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 14:57:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 14:57:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 14:57:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 14:57:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 14:57:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 14:57:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 14:57:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-08 14:57:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-08 14:57:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,635 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-08 14:57:05,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:05,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407811459] [2024-11-08 14:57:05,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407811459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:57:05,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867485159] [2024-11-08 14:57:05,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:05,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:57:05,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:57:05,638 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) [2024-11-08 14:57:05,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 14:57:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:05,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 1250 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 14:57:05,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:57:06,080 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-08 14:57:06,080 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:57:06,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867485159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:57:06,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:57:06,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-08 14:57:06,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361197038] [2024-11-08 14:57:06,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:57:06,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 14:57:06,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:06,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 14:57:06,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:57:06,091 INFO L87 Difference]: Start difference. First operand 434 states and 652 transitions. Second operand has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 14:57:06,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:57:06,156 INFO L93 Difference]: Finished difference Result 859 states and 1294 transitions. [2024-11-08 14:57:06,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:57:06,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 160 [2024-11-08 14:57:06,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:57:06,160 INFO L225 Difference]: With dead ends: 859 [2024-11-08 14:57:06,160 INFO L226 Difference]: Without dead ends: 436 [2024-11-08 14:57:06,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:57:06,162 INFO L432 NwaCegarLoop]: 550 mSDtfsCounter, 2 mSDsluCounter, 1639 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2189 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:57:06,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2189 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:57:06,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-08 14:57:06,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 436. [2024-11-08 14:57:06,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 337 states have (on average 1.5074183976261128) internal successors, (508), 341 states have internal predecessors, (508), 73 states have call successors, (73), 24 states have call predecessors, (73), 25 states have return successors, (74), 72 states have call predecessors, (74), 72 states have call successors, (74) [2024-11-08 14:57:06,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 655 transitions. [2024-11-08 14:57:06,187 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 655 transitions. Word has length 160 [2024-11-08 14:57:06,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:57:06,188 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 655 transitions. [2024-11-08 14:57:06,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.25) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 14:57:06,188 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 655 transitions. [2024-11-08 14:57:06,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-08 14:57:06,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:06,191 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:06,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 14:57:06,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:57:06,392 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:06,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:06,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1319010768, now seen corresponding path program 1 times [2024-11-08 14:57:06,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:06,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419194131] [2024-11-08 14:57:06,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:06,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:06,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:06,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:06,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:06,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 14:57:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:06,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 14:57:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:06,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:57:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:06,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 14:57:06,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:06,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 14:57:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:06,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 14:57:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:06,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 14:57:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:06,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 14:57:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:06,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 14:57:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:06,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 14:57:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:06,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 14:57:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:06,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-08 14:57:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:06,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:06,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-08 14:57:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:06,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 14:57:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:06,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:06,684 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-08 14:57:06,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:06,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419194131] [2024-11-08 14:57:06,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419194131] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:57:06,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913630108] [2024-11-08 14:57:06,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:06,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:57:06,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:57:06,686 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) [2024-11-08 14:57:06,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 14:57:07,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 1251 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 14:57:07,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:57:07,131 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-08 14:57:07,132 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:57:07,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913630108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:57:07,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:57:07,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-08 14:57:07,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716786364] [2024-11-08 14:57:07,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:57:07,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 14:57:07,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:07,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 14:57:07,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:57:07,135 INFO L87 Difference]: Start difference. First operand 436 states and 655 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 14:57:07,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:57:07,215 INFO L93 Difference]: Finished difference Result 861 states and 1299 transitions. [2024-11-08 14:57:07,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 14:57:07,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 161 [2024-11-08 14:57:07,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:57:07,221 INFO L225 Difference]: With dead ends: 861 [2024-11-08 14:57:07,221 INFO L226 Difference]: Without dead ends: 438 [2024-11-08 14:57:07,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:57:07,224 INFO L432 NwaCegarLoop]: 548 mSDtfsCounter, 2 mSDsluCounter, 1627 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:57:07,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2175 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 14:57:07,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-11-08 14:57:07,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 438. [2024-11-08 14:57:07,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 338 states have (on average 1.5059171597633136) internal successors, (509), 343 states have internal predecessors, (509), 73 states have call successors, (73), 24 states have call predecessors, (73), 26 states have return successors, (79), 72 states have call predecessors, (79), 72 states have call successors, (79) [2024-11-08 14:57:07,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 661 transitions. [2024-11-08 14:57:07,252 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 661 transitions. Word has length 161 [2024-11-08 14:57:07,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:57:07,254 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 661 transitions. [2024-11-08 14:57:07,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 14:57:07,254 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 661 transitions. [2024-11-08 14:57:07,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-08 14:57:07,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:07,258 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:07,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 14:57:07,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:57:07,459 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:07,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:07,459 INFO L85 PathProgramCache]: Analyzing trace with hash -569198182, now seen corresponding path program 1 times [2024-11-08 14:57:07,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:07,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596136508] [2024-11-08 14:57:07,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:07,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 14:57:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:57:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 14:57:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 14:57:07,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 14:57:07,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 14:57:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 14:57:07,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 14:57:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 14:57:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 14:57:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 14:57:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-08 14:57:07,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:07,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-08 14:57:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 14:57:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:07,709 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-08 14:57:07,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:07,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596136508] [2024-11-08 14:57:07,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596136508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:57:07,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:57:07,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 14:57:07,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287655531] [2024-11-08 14:57:07,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:57:07,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 14:57:07,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:07,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 14:57:07,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:57:07,712 INFO L87 Difference]: Start difference. First operand 438 states and 661 transitions. Second operand has 9 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 14:57:10,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:57:10,292 INFO L93 Difference]: Finished difference Result 1076 states and 1629 transitions. [2024-11-08 14:57:10,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 14:57:10,293 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 162 [2024-11-08 14:57:10,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:57:10,299 INFO L225 Difference]: With dead ends: 1076 [2024-11-08 14:57:10,299 INFO L226 Difference]: Without dead ends: 661 [2024-11-08 14:57:10,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 14:57:10,303 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 1313 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 2956 mSolverCounterSat, 461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 3417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 2956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 14:57:10,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 1172 Invalid, 3417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 2956 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 14:57:10,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2024-11-08 14:57:10,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 438. [2024-11-08 14:57:10,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 338 states have (on average 1.5059171597633136) internal successors, (509), 343 states have internal predecessors, (509), 73 states have call successors, (73), 24 states have call predecessors, (73), 26 states have return successors, (78), 72 states have call predecessors, (78), 72 states have call successors, (78) [2024-11-08 14:57:10,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 660 transitions. [2024-11-08 14:57:10,357 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 660 transitions. Word has length 162 [2024-11-08 14:57:10,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:57:10,357 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 660 transitions. [2024-11-08 14:57:10,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.875) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 14:57:10,357 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 660 transitions. [2024-11-08 14:57:10,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-08 14:57:10,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:10,363 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:10,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 14:57:10,364 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:10,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:10,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1671511141, now seen corresponding path program 2 times [2024-11-08 14:57:10,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:10,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850920559] [2024-11-08 14:57:10,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:10,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:10,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:10,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:10,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:10,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 14:57:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:10,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:57:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:10,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:57:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:10,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 14:57:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:10,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 14:57:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:10,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 14:57:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:10,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 14:57:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:10,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 14:57:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:10,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 14:57:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:10,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 14:57:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:10,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-08 14:57:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:10,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 14:57:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:10,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:10,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-08 14:57:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:10,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-08 14:57:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:10,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:10,599 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-08 14:57:10,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:10,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850920559] [2024-11-08 14:57:10,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850920559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:57:10,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:57:10,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 14:57:10,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285998215] [2024-11-08 14:57:10,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:57:10,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 14:57:10,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:10,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 14:57:10,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:57:10,601 INFO L87 Difference]: Start difference. First operand 438 states and 660 transitions. Second operand has 9 states, 8 states have (on average 12.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 14:57:13,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:57:13,079 INFO L93 Difference]: Finished difference Result 1078 states and 1632 transitions. [2024-11-08 14:57:13,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 14:57:13,080 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 163 [2024-11-08 14:57:13,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:57:13,085 INFO L225 Difference]: With dead ends: 1078 [2024-11-08 14:57:13,085 INFO L226 Difference]: Without dead ends: 663 [2024-11-08 14:57:13,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 14:57:13,088 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 1301 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 3007 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 3463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 3007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-08 14:57:13,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1302 Valid, 1172 Invalid, 3463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 3007 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-08 14:57:13,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2024-11-08 14:57:13,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 440. [2024-11-08 14:57:13,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 339 states have (on average 1.5044247787610618) internal successors, (510), 345 states have internal predecessors, (510), 73 states have call successors, (73), 24 states have call predecessors, (73), 27 states have return successors, (80), 72 states have call predecessors, (80), 72 states have call successors, (80) [2024-11-08 14:57:13,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 663 transitions. [2024-11-08 14:57:13,152 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 663 transitions. Word has length 163 [2024-11-08 14:57:13,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:57:13,152 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 663 transitions. [2024-11-08 14:57:13,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-08 14:57:13,153 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 663 transitions. [2024-11-08 14:57:13,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-08 14:57:13,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:13,156 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:13,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 14:57:13,156 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:13,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:13,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1349563669, now seen corresponding path program 1 times [2024-11-08 14:57:13,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:13,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611361017] [2024-11-08 14:57:13,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:13,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:13,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:13,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:13,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:13,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:13,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:13,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 14:57:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:13,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:57:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:13,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 14:57:13,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:13,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 14:57:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:13,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 14:57:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:13,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 14:57:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:13,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 14:57:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:13,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 14:57:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:13,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 14:57:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:13,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 14:57:13,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:13,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 14:57:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:13,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 14:57:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:13,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:13,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-08 14:57:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:13,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-08 14:57:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:13,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:13,468 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-08 14:57:13,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:13,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611361017] [2024-11-08 14:57:13,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611361017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:57:13,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:57:13,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 14:57:13,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802907236] [2024-11-08 14:57:13,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:57:13,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 14:57:13,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:13,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 14:57:13,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:57:13,470 INFO L87 Difference]: Start difference. First operand 440 states and 663 transitions. Second operand has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 14:57:16,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:57:16,721 INFO L93 Difference]: Finished difference Result 1076 states and 1627 transitions. [2024-11-08 14:57:16,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 14:57:16,722 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 164 [2024-11-08 14:57:16,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:57:16,727 INFO L225 Difference]: With dead ends: 1076 [2024-11-08 14:57:16,727 INFO L226 Difference]: Without dead ends: 663 [2024-11-08 14:57:16,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-08 14:57:16,730 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 1322 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 4902 mSolverCounterSat, 470 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 5372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 470 IncrementalHoareTripleChecker+Valid, 4902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-08 14:57:16,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1323 Valid, 1623 Invalid, 5372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [470 Valid, 4902 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-08 14:57:16,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2024-11-08 14:57:16,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 440. [2024-11-08 14:57:16,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 339 states have (on average 1.5044247787610618) internal successors, (510), 345 states have internal predecessors, (510), 73 states have call successors, (73), 24 states have call predecessors, (73), 27 states have return successors, (79), 72 states have call predecessors, (79), 72 states have call successors, (79) [2024-11-08 14:57:16,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 662 transitions. [2024-11-08 14:57:16,768 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 662 transitions. Word has length 164 [2024-11-08 14:57:16,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:57:16,768 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 662 transitions. [2024-11-08 14:57:16,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.090909090909092) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 14:57:16,769 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 662 transitions. [2024-11-08 14:57:16,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-08 14:57:16,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:16,772 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:16,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 14:57:16,772 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:16,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:16,772 INFO L85 PathProgramCache]: Analyzing trace with hash -2015848371, now seen corresponding path program 2 times [2024-11-08 14:57:16,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:16,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163704928] [2024-11-08 14:57:16,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:16,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:16,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:16,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:16,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:16,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 14:57:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:16,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:57:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:16,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 14:57:16,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:17,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 14:57:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:17,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 14:57:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:17,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 14:57:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:17,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 14:57:17,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:17,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 14:57:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:17,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 14:57:17,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:17,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 14:57:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:17,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 14:57:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:17,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 14:57:17,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:17,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:17,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-08 14:57:17,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:17,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-08 14:57:17,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:17,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:17,048 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-08 14:57:17,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:17,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163704928] [2024-11-08 14:57:17,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163704928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:57:17,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:57:17,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 14:57:17,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374562674] [2024-11-08 14:57:17,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:57:17,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 14:57:17,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:17,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 14:57:17,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:57:17,051 INFO L87 Difference]: Start difference. First operand 440 states and 662 transitions. Second operand has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 14:57:19,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:57:19,780 INFO L93 Difference]: Finished difference Result 1078 states and 1633 transitions. [2024-11-08 14:57:19,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 14:57:19,781 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 165 [2024-11-08 14:57:19,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:57:19,785 INFO L225 Difference]: With dead ends: 1078 [2024-11-08 14:57:19,785 INFO L226 Difference]: Without dead ends: 665 [2024-11-08 14:57:19,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-08 14:57:19,788 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 1355 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 4905 mSolverCounterSat, 477 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 5382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 477 IncrementalHoareTripleChecker+Valid, 4905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 14:57:19,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1356 Valid, 1624 Invalid, 5382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [477 Valid, 4905 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 14:57:19,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-08 14:57:19,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 442. [2024-11-08 14:57:19,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 340 states have (on average 1.5029411764705882) internal successors, (511), 347 states have internal predecessors, (511), 73 states have call successors, (73), 24 states have call predecessors, (73), 28 states have return successors, (84), 72 states have call predecessors, (84), 72 states have call successors, (84) [2024-11-08 14:57:19,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 668 transitions. [2024-11-08 14:57:19,822 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 668 transitions. Word has length 165 [2024-11-08 14:57:19,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:57:19,822 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 668 transitions. [2024-11-08 14:57:19,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 14:57:19,822 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 668 transitions. [2024-11-08 14:57:19,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-08 14:57:19,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:19,825 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:19,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 14:57:19,825 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:19,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:19,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1947977808, now seen corresponding path program 1 times [2024-11-08 14:57:19,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:19,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363636306] [2024-11-08 14:57:19,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:19,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:19,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:19,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:19,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:20,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:20,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 14:57:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:20,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:57:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:20,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 14:57:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:20,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 14:57:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:20,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:57:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:20,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 14:57:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:20,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 14:57:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:20,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 14:57:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:20,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 14:57:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:20,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 14:57:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:20,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 14:57:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:20,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-08 14:57:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:20,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:20,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-08 14:57:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:20,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-08 14:57:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:20,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:20,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:20,101 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-08 14:57:20,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:20,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363636306] [2024-11-08 14:57:20,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363636306] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:57:20,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515469833] [2024-11-08 14:57:20,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:20,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:57:20,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:57:20,104 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) [2024-11-08 14:57:20,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 14:57:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:20,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 14:57:20,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:57:20,471 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-08 14:57:20,471 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 14:57:20,614 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-08 14:57:20,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515469833] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 14:57:20,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 14:57:20,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-11-08 14:57:20,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186658582] [2024-11-08 14:57:20,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 14:57:20,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 14:57:20,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:20,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 14:57:20,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:57:20,617 INFO L87 Difference]: Start difference. First operand 442 states and 668 transitions. Second operand has 15 states, 14 states have (on average 11.357142857142858) internal successors, (159), 11 states have internal predecessors, (159), 4 states have call successors, (42), 6 states have call predecessors, (42), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2024-11-08 14:57:23,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:57:23,843 INFO L93 Difference]: Finished difference Result 1453 states and 2305 transitions. [2024-11-08 14:57:23,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 14:57:23,844 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 11.357142857142858) internal successors, (159), 11 states have internal predecessors, (159), 4 states have call successors, (42), 6 states have call predecessors, (42), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) Word has length 166 [2024-11-08 14:57:23,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:57:23,850 INFO L225 Difference]: With dead ends: 1453 [2024-11-08 14:57:23,851 INFO L226 Difference]: Without dead ends: 1042 [2024-11-08 14:57:23,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-11-08 14:57:23,854 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 2472 mSDsluCounter, 1799 mSDsCounter, 0 mSdLazyCounter, 5988 mSolverCounterSat, 815 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2489 SdHoareTripleChecker+Valid, 1987 SdHoareTripleChecker+Invalid, 6803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 815 IncrementalHoareTripleChecker+Valid, 5988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 14:57:23,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2489 Valid, 1987 Invalid, 6803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [815 Valid, 5988 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 14:57:23,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2024-11-08 14:57:23,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 795. [2024-11-08 14:57:23,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 629 states have (on average 1.56120826709062) internal successors, (982), 636 states have internal predecessors, (982), 137 states have call successors, (137), 24 states have call predecessors, (137), 28 states have return successors, (158), 136 states have call predecessors, (158), 136 states have call successors, (158) [2024-11-08 14:57:23,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1277 transitions. [2024-11-08 14:57:23,923 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1277 transitions. Word has length 166 [2024-11-08 14:57:23,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:57:23,924 INFO L471 AbstractCegarLoop]: Abstraction has 795 states and 1277 transitions. [2024-11-08 14:57:23,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 11.357142857142858) internal successors, (159), 11 states have internal predecessors, (159), 4 states have call successors, (42), 6 states have call predecessors, (42), 3 states have return successors, (34), 3 states have call predecessors, (34), 4 states have call successors, (34) [2024-11-08 14:57:23,924 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1277 transitions. [2024-11-08 14:57:23,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-08 14:57:23,928 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:23,929 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:23,948 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 14:57:24,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:57:24,129 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:24,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:24,130 INFO L85 PathProgramCache]: Analyzing trace with hash -40022500, now seen corresponding path program 1 times [2024-11-08 14:57:24,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:24,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678459953] [2024-11-08 14:57:24,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:24,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:24,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:24,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:24,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:24,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:24,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 14:57:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:24,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:57:24,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:24,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 14:57:24,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:24,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 14:57:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:24,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 14:57:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:24,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 14:57:24,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:24,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 14:57:24,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:24,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 14:57:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:24,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 14:57:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:24,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-08 14:57:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:24,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-08 14:57:24,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:24,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 14:57:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:24,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:24,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-08 14:57:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:24,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 14:57:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:24,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:24,273 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-08 14:57:24,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:24,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678459953] [2024-11-08 14:57:24,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678459953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:57:24,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:57:24,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:57:24,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250928484] [2024-11-08 14:57:24,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:57:24,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:57:24,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:24,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:57:24,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:57:24,276 INFO L87 Difference]: Start difference. First operand 795 states and 1277 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:25,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:57:25,786 INFO L93 Difference]: Finished difference Result 2068 states and 3384 transitions. [2024-11-08 14:57:25,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:57:25,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 169 [2024-11-08 14:57:25,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:57:25,795 INFO L225 Difference]: With dead ends: 2068 [2024-11-08 14:57:25,795 INFO L226 Difference]: Without dead ends: 1351 [2024-11-08 14:57:25,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:57:25,799 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 1423 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 521 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 2228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 521 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 14:57:25,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 910 Invalid, 2228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [521 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 14:57:25,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2024-11-08 14:57:25,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1120. [2024-11-08 14:57:25,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 890 states have (on average 1.5808988764044944) internal successors, (1407), 897 states have internal predecessors, (1407), 201 states have call successors, (201), 24 states have call predecessors, (201), 28 states have return successors, (232), 200 states have call predecessors, (232), 200 states have call successors, (232) [2024-11-08 14:57:25,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 1840 transitions. [2024-11-08 14:57:25,865 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 1840 transitions. Word has length 169 [2024-11-08 14:57:25,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:57:25,865 INFO L471 AbstractCegarLoop]: Abstraction has 1120 states and 1840 transitions. [2024-11-08 14:57:25,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:25,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 1840 transitions. [2024-11-08 14:57:25,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-08 14:57:25,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:25,872 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:25,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 14:57:25,873 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:25,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:25,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1418744724, now seen corresponding path program 1 times [2024-11-08 14:57:25,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:25,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403363859] [2024-11-08 14:57:25,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:25,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:25,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:25,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:25,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:25,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 14:57:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:25,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:57:25,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:25,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 14:57:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:25,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 14:57:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:25,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 14:57:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:25,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 14:57:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:25,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 14:57:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:25,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 14:57:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:25,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 14:57:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:25,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 14:57:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:25,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-08 14:57:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:25,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 14:57:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:26,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:26,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-08 14:57:26,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:26,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-08 14:57:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:26,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:26,011 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-08 14:57:26,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:26,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403363859] [2024-11-08 14:57:26,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403363859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:57:26,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:57:26,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:57:26,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409163468] [2024-11-08 14:57:26,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:57:26,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:57:26,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:26,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:57:26,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:57:26,013 INFO L87 Difference]: Start difference. First operand 1120 states and 1840 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:27,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:57:27,535 INFO L93 Difference]: Finished difference Result 2873 states and 4768 transitions. [2024-11-08 14:57:27,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:57:27,535 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 170 [2024-11-08 14:57:27,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:57:27,547 INFO L225 Difference]: With dead ends: 2873 [2024-11-08 14:57:27,547 INFO L226 Difference]: Without dead ends: 1884 [2024-11-08 14:57:27,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:57:27,552 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 1447 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 539 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1462 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 2154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 539 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 14:57:27,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1462 Valid, 854 Invalid, 2154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [539 Valid, 1615 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 14:57:27,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2024-11-08 14:57:27,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1653. [2024-11-08 14:57:27,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1328 states have (on average 1.5911144578313252) internal successors, (2113), 1335 states have internal predecessors, (2113), 296 states have call successors, (296), 24 states have call predecessors, (296), 28 states have return successors, (327), 295 states have call predecessors, (327), 295 states have call successors, (327) [2024-11-08 14:57:27,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2736 transitions. [2024-11-08 14:57:27,648 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2736 transitions. Word has length 170 [2024-11-08 14:57:27,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:57:27,649 INFO L471 AbstractCegarLoop]: Abstraction has 1653 states and 2736 transitions. [2024-11-08 14:57:27,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:27,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2736 transitions. [2024-11-08 14:57:27,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-08 14:57:27,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:27,658 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:27,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 14:57:27,659 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:27,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:27,659 INFO L85 PathProgramCache]: Analyzing trace with hash -2118031254, now seen corresponding path program 1 times [2024-11-08 14:57:27,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:27,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089443139] [2024-11-08 14:57:27,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:27,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:27,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:27,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:27,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:27,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 14:57:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:27,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:57:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:27,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 14:57:27,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:27,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 14:57:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:27,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 14:57:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:27,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 14:57:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:27,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 14:57:27,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:27,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 14:57:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:27,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 14:57:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:27,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 14:57:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:27,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 14:57:27,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:27,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-08 14:57:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:27,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:27,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-08 14:57:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:27,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-08 14:57:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:27,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:27,825 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-08 14:57:27,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:27,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089443139] [2024-11-08 14:57:27,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089443139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:57:27,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:57:27,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:57:27,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377224810] [2024-11-08 14:57:27,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:57:27,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:57:27,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:27,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:57:27,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:57:27,828 INFO L87 Difference]: Start difference. First operand 1653 states and 2736 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:29,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:57:29,260 INFO L93 Difference]: Finished difference Result 4080 states and 6854 transitions. [2024-11-08 14:57:29,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:57:29,261 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2024-11-08 14:57:29,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:57:29,277 INFO L225 Difference]: With dead ends: 4080 [2024-11-08 14:57:29,277 INFO L226 Difference]: Without dead ends: 2693 [2024-11-08 14:57:29,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:57:29,284 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 1529 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 2135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 14:57:29,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 853 Invalid, 2135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 1577 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 14:57:29,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2024-11-08 14:57:29,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 2462. [2024-11-08 14:57:29,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2462 states, 2014 states have (on average 1.5988083416087389) internal successors, (3220), 2021 states have internal predecessors, (3220), 419 states have call successors, (419), 24 states have call predecessors, (419), 28 states have return successors, (466), 418 states have call predecessors, (466), 418 states have call successors, (466) [2024-11-08 14:57:29,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2462 states to 2462 states and 4105 transitions. [2024-11-08 14:57:29,426 INFO L78 Accepts]: Start accepts. Automaton has 2462 states and 4105 transitions. Word has length 171 [2024-11-08 14:57:29,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:57:29,426 INFO L471 AbstractCegarLoop]: Abstraction has 2462 states and 4105 transitions. [2024-11-08 14:57:29,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:29,426 INFO L276 IsEmpty]: Start isEmpty. Operand 2462 states and 4105 transitions. [2024-11-08 14:57:29,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-08 14:57:29,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:29,439 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:29,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 14:57:29,439 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:29,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:29,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1966516301, now seen corresponding path program 1 times [2024-11-08 14:57:29,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:29,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647005743] [2024-11-08 14:57:29,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:29,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:29,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:29,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:29,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:29,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 14:57:29,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:29,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:57:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:29,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 14:57:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:29,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 14:57:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:29,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 14:57:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:29,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 14:57:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:29,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 14:57:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:29,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 14:57:29,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:29,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 14:57:29,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:29,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 14:57:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:29,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 14:57:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:29,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-08 14:57:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:29,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:29,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-08 14:57:29,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:29,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-08 14:57:29,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:29,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:29,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:29,590 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-08 14:57:29,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:29,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647005743] [2024-11-08 14:57:29,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647005743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:57:29,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:57:29,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:57:29,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062305826] [2024-11-08 14:57:29,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:57:29,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:57:29,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:29,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:57:29,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:57:29,592 INFO L87 Difference]: Start difference. First operand 2462 states and 4105 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:31,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:57:31,162 INFO L93 Difference]: Finished difference Result 5964 states and 10114 transitions. [2024-11-08 14:57:31,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:57:31,163 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 172 [2024-11-08 14:57:31,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:57:31,187 INFO L225 Difference]: With dead ends: 5964 [2024-11-08 14:57:31,187 INFO L226 Difference]: Without dead ends: 3987 [2024-11-08 14:57:31,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:57:31,196 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 1486 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 1574 mSolverCounterSat, 549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 2123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 1574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 14:57:31,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 853 Invalid, 2123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [549 Valid, 1574 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 14:57:31,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3987 states. [2024-11-08 14:57:31,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3987 to 3756. [2024-11-08 14:57:31,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3756 states, 3129 states have (on average 1.6037072547139661) internal successors, (5018), 3136 states have internal predecessors, (5018), 598 states have call successors, (598), 24 states have call predecessors, (598), 28 states have return successors, (671), 597 states have call predecessors, (671), 597 states have call successors, (671) [2024-11-08 14:57:31,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3756 states to 3756 states and 6287 transitions. [2024-11-08 14:57:31,390 INFO L78 Accepts]: Start accepts. Automaton has 3756 states and 6287 transitions. Word has length 172 [2024-11-08 14:57:31,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:57:31,390 INFO L471 AbstractCegarLoop]: Abstraction has 3756 states and 6287 transitions. [2024-11-08 14:57:31,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:31,390 INFO L276 IsEmpty]: Start isEmpty. Operand 3756 states and 6287 transitions. [2024-11-08 14:57:31,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-08 14:57:31,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:31,408 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:31,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 14:57:31,408 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:31,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:31,409 INFO L85 PathProgramCache]: Analyzing trace with hash -237704474, now seen corresponding path program 1 times [2024-11-08 14:57:31,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:31,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541637527] [2024-11-08 14:57:31,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:31,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:31,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:31,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:31,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:31,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 14:57:31,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:31,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:57:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:31,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 14:57:31,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:31,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 14:57:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:31,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 14:57:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:31,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 14:57:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:31,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 14:57:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:31,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 14:57:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:31,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 14:57:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:31,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 14:57:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:31,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 14:57:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:31,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-08 14:57:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:31,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:31,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:31,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-08 14:57:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:31,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-08 14:57:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:31,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:31,534 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-08 14:57:31,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:31,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541637527] [2024-11-08 14:57:31,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541637527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:57:31,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:57:31,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:57:31,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078577627] [2024-11-08 14:57:31,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:57:31,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:57:31,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:31,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:57:31,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:57:31,536 INFO L87 Difference]: Start difference. First operand 3756 states and 6287 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:33,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:57:33,182 INFO L93 Difference]: Finished difference Result 9067 states and 15478 transitions. [2024-11-08 14:57:33,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:57:33,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 173 [2024-11-08 14:57:33,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:57:33,216 INFO L225 Difference]: With dead ends: 9067 [2024-11-08 14:57:33,216 INFO L226 Difference]: Without dead ends: 6128 [2024-11-08 14:57:33,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:57:33,229 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 1477 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 2186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 14:57:33,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 911 Invalid, 2186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 1661 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 14:57:33,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6128 states. [2024-11-08 14:57:33,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6128 to 5897. [2024-11-08 14:57:33,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5897 states, 4894 states have (on average 1.5986922762566407) internal successors, (7824), 4901 states have internal predecessors, (7824), 974 states have call successors, (974), 24 states have call predecessors, (974), 28 states have return successors, (1091), 973 states have call predecessors, (1091), 973 states have call successors, (1091) [2024-11-08 14:57:33,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5897 states to 5897 states and 9889 transitions. [2024-11-08 14:57:33,546 INFO L78 Accepts]: Start accepts. Automaton has 5897 states and 9889 transitions. Word has length 173 [2024-11-08 14:57:33,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:57:33,546 INFO L471 AbstractCegarLoop]: Abstraction has 5897 states and 9889 transitions. [2024-11-08 14:57:33,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:33,551 INFO L276 IsEmpty]: Start isEmpty. Operand 5897 states and 9889 transitions. [2024-11-08 14:57:33,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-08 14:57:33,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:33,579 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:33,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 14:57:33,579 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:33,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:33,579 INFO L85 PathProgramCache]: Analyzing trace with hash -818134575, now seen corresponding path program 1 times [2024-11-08 14:57:33,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:33,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779577386] [2024-11-08 14:57:33,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:33,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:33,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:33,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:33,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:33,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:33,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 14:57:33,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:33,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:57:33,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:33,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 14:57:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:33,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 14:57:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:33,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 14:57:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:33,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 14:57:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:33,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 14:57:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:33,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 14:57:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:33,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 14:57:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:33,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 14:57:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:33,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-08 14:57:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:33,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-08 14:57:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:33,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:33,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-08 14:57:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:33,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 14:57:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:33,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:33,711 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-08 14:57:33,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:33,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779577386] [2024-11-08 14:57:33,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779577386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:57:33,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:57:33,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:57:33,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650506138] [2024-11-08 14:57:33,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:57:33,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:57:33,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:33,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:57:33,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:57:33,715 INFO L87 Difference]: Start difference. First operand 5897 states and 9889 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:35,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:57:35,460 INFO L93 Difference]: Finished difference Result 14684 states and 25091 transitions. [2024-11-08 14:57:35,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:57:35,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 174 [2024-11-08 14:57:35,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:57:35,512 INFO L225 Difference]: With dead ends: 14684 [2024-11-08 14:57:35,512 INFO L226 Difference]: Without dead ends: 10006 [2024-11-08 14:57:35,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:57:35,532 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 1429 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1665 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1444 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 2187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 1665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 14:57:35,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1444 Valid, 854 Invalid, 2187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 1665 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 14:57:35,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10006 states. [2024-11-08 14:57:36,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10006 to 9775. [2024-11-08 14:57:36,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9775 states, 8166 states have (on average 1.5972324271369092) internal successors, (13043), 8173 states have internal predecessors, (13043), 1580 states have call successors, (1580), 24 states have call predecessors, (1580), 28 states have return successors, (1775), 1579 states have call predecessors, (1775), 1579 states have call successors, (1775) [2024-11-08 14:57:36,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9775 states to 9775 states and 16398 transitions. [2024-11-08 14:57:36,055 INFO L78 Accepts]: Start accepts. Automaton has 9775 states and 16398 transitions. Word has length 174 [2024-11-08 14:57:36,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:57:36,056 INFO L471 AbstractCegarLoop]: Abstraction has 9775 states and 16398 transitions. [2024-11-08 14:57:36,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:36,056 INFO L276 IsEmpty]: Start isEmpty. Operand 9775 states and 16398 transitions. [2024-11-08 14:57:36,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-08 14:57:36,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:36,103 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:36,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 14:57:36,104 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:36,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:36,104 INFO L85 PathProgramCache]: Analyzing trace with hash 251162516, now seen corresponding path program 1 times [2024-11-08 14:57:36,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:36,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438874790] [2024-11-08 14:57:36,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:36,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:36,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:36,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:36,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:36,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 14:57:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:36,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:57:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:36,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 14:57:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:36,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 14:57:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:36,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 14:57:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:36,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 14:57:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:36,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 14:57:36,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:36,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 14:57:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:36,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-08 14:57:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:36,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-08 14:57:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:36,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-08 14:57:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:36,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 14:57:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:36,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:36,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 14:57:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:36,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-08 14:57:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:36,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:36,236 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-08 14:57:36,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:36,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438874790] [2024-11-08 14:57:36,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438874790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:57:36,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:57:36,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:57:36,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969534388] [2024-11-08 14:57:36,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:57:36,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:57:36,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:36,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:57:36,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:57:36,239 INFO L87 Difference]: Start difference. First operand 9775 states and 16398 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:37,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:57:37,968 INFO L93 Difference]: Finished difference Result 25393 states and 43372 transitions. [2024-11-08 14:57:37,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:57:37,969 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 175 [2024-11-08 14:57:37,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:57:38,033 INFO L225 Difference]: With dead ends: 25393 [2024-11-08 14:57:38,033 INFO L226 Difference]: Without dead ends: 17319 [2024-11-08 14:57:38,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:57:38,064 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 1448 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 1652 mSolverCounterSat, 531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1463 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 2183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 531 IncrementalHoareTripleChecker+Valid, 1652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 14:57:38,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1463 Valid, 902 Invalid, 2183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [531 Valid, 1652 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 14:57:38,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17319 states. [2024-11-08 14:57:38,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17319 to 17088. [2024-11-08 14:57:38,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17088 states, 14276 states have (on average 1.589310731297282) internal successors, (22689), 14283 states have internal predecessors, (22689), 2783 states have call successors, (2783), 24 states have call predecessors, (2783), 28 states have return successors, (3122), 2782 states have call predecessors, (3122), 2782 states have call successors, (3122) [2024-11-08 14:57:38,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17088 states to 17088 states and 28594 transitions. [2024-11-08 14:57:38,723 INFO L78 Accepts]: Start accepts. Automaton has 17088 states and 28594 transitions. Word has length 175 [2024-11-08 14:57:38,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:57:38,725 INFO L471 AbstractCegarLoop]: Abstraction has 17088 states and 28594 transitions. [2024-11-08 14:57:38,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:38,725 INFO L276 IsEmpty]: Start isEmpty. Operand 17088 states and 28594 transitions. [2024-11-08 14:57:38,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-08 14:57:38,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:38,774 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:38,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 14:57:38,775 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:38,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:38,775 INFO L85 PathProgramCache]: Analyzing trace with hash -890327342, now seen corresponding path program 1 times [2024-11-08 14:57:38,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:38,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013449582] [2024-11-08 14:57:38,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:38,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:38,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:38,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:38,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:38,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:38,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:38,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 14:57:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:38,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:57:38,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:38,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 14:57:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:38,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 14:57:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:38,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 14:57:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:38,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 14:57:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:38,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 14:57:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:38,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 14:57:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:39,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 14:57:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:39,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-08 14:57:39,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:39,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-08 14:57:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:39,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 14:57:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:39,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:39,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-08 14:57:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:39,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-08 14:57:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:39,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:39,016 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-08 14:57:39,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:39,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013449582] [2024-11-08 14:57:39,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013449582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:57:39,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:57:39,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:57:39,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408214945] [2024-11-08 14:57:39,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:57:39,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:57:39,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:39,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:57:39,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:57:39,019 INFO L87 Difference]: Start difference. First operand 17088 states and 28594 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:41,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:57:41,072 INFO L93 Difference]: Finished difference Result 45369 states and 77385 transitions. [2024-11-08 14:57:41,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:57:41,073 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 176 [2024-11-08 14:57:41,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:57:41,201 INFO L225 Difference]: With dead ends: 45369 [2024-11-08 14:57:41,201 INFO L226 Difference]: Without dead ends: 30659 [2024-11-08 14:57:41,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:57:41,249 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 1430 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1645 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 1645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 14:57:41,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1445 Valid, 854 Invalid, 2161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 1645 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 14:57:41,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30659 states. [2024-11-08 14:57:42,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30659 to 30428. [2024-11-08 14:57:42,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30428 states, 25577 states have (on average 1.5854869609414708) internal successors, (40552), 25584 states have internal predecessors, (40552), 4822 states have call successors, (4822), 24 states have call predecessors, (4822), 28 states have return successors, (5435), 4821 states have call predecessors, (5435), 4821 states have call successors, (5435) [2024-11-08 14:57:42,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30428 states to 30428 states and 50809 transitions. [2024-11-08 14:57:42,393 INFO L78 Accepts]: Start accepts. Automaton has 30428 states and 50809 transitions. Word has length 176 [2024-11-08 14:57:42,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:57:42,394 INFO L471 AbstractCegarLoop]: Abstraction has 30428 states and 50809 transitions. [2024-11-08 14:57:42,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:42,394 INFO L276 IsEmpty]: Start isEmpty. Operand 30428 states and 50809 transitions. [2024-11-08 14:57:42,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-08 14:57:42,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:42,464 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:42,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 14:57:42,464 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:42,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:42,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1767426486, now seen corresponding path program 1 times [2024-11-08 14:57:42,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:42,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978651524] [2024-11-08 14:57:42,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:42,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:42,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:42,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:42,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:42,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 14:57:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:42,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:57:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:42,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 14:57:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:42,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 14:57:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:42,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 14:57:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:42,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 14:57:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:42,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 14:57:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:42,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 14:57:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:42,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 14:57:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:42,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 14:57:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:42,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 14:57:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:42,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-08 14:57:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:42,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:42,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-08 14:57:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:42,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-08 14:57:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:42,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:42,593 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-08 14:57:42,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:42,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978651524] [2024-11-08 14:57:42,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978651524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:57:42,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:57:42,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:57:42,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997539643] [2024-11-08 14:57:42,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:57:42,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:57:42,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:42,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:57:42,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:57:42,595 INFO L87 Difference]: Start difference. First operand 30428 states and 50809 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:45,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:57:45,634 INFO L93 Difference]: Finished difference Result 83106 states and 140909 transitions. [2024-11-08 14:57:45,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:57:45,635 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 177 [2024-11-08 14:57:45,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:57:46,119 INFO L225 Difference]: With dead ends: 83106 [2024-11-08 14:57:46,120 INFO L226 Difference]: Without dead ends: 55868 [2024-11-08 14:57:46,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:57:46,183 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 1580 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1508 mSolverCounterSat, 560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 560 IncrementalHoareTripleChecker+Valid, 1508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 14:57:46,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1595 Valid, 854 Invalid, 2068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [560 Valid, 1508 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 14:57:46,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55868 states. [2024-11-08 14:57:48,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55868 to 55637. [2024-11-08 14:57:48,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55637 states, 47071 states have (on average 1.5802298655222962) internal successors, (74383), 47078 states have internal predecessors, (74383), 8537 states have call successors, (8537), 24 states have call predecessors, (8537), 28 states have return successors, (9682), 8536 states have call predecessors, (9682), 8536 states have call successors, (9682) [2024-11-08 14:57:48,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55637 states to 55637 states and 92602 transitions. [2024-11-08 14:57:48,772 INFO L78 Accepts]: Start accepts. Automaton has 55637 states and 92602 transitions. Word has length 177 [2024-11-08 14:57:48,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:57:48,773 INFO L471 AbstractCegarLoop]: Abstraction has 55637 states and 92602 transitions. [2024-11-08 14:57:48,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:48,774 INFO L276 IsEmpty]: Start isEmpty. Operand 55637 states and 92602 transitions. [2024-11-08 14:57:48,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-08 14:57:48,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:48,889 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:48,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 14:57:48,889 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:48,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:48,889 INFO L85 PathProgramCache]: Analyzing trace with hash 109656498, now seen corresponding path program 1 times [2024-11-08 14:57:48,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:48,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101022908] [2024-11-08 14:57:48,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:48,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:48,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:48,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:48,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:48,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 14:57:48,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:48,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:57:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:48,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 14:57:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:48,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 14:57:48,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:48,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 14:57:48,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:48,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 14:57:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:49,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 14:57:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:49,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 14:57:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:49,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 14:57:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:49,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 14:57:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:49,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 14:57:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:49,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-08 14:57:49,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:49,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:49,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-08 14:57:49,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:49,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-08 14:57:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:49,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:49,014 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-08 14:57:49,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:49,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101022908] [2024-11-08 14:57:49,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101022908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:57:49,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:57:49,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:57:49,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681200695] [2024-11-08 14:57:49,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:57:49,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:57:49,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:49,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:57:49,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:57:49,016 INFO L87 Difference]: Start difference. First operand 55637 states and 92602 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:52,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:57:52,612 INFO L93 Difference]: Finished difference Result 104162 states and 176895 transitions. [2024-11-08 14:57:52,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:57:52,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 178 [2024-11-08 14:57:52,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:57:53,083 INFO L225 Difference]: With dead ends: 104162 [2024-11-08 14:57:53,084 INFO L226 Difference]: Without dead ends: 103942 [2024-11-08 14:57:53,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:57:53,141 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 1403 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 508 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 2171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 14:57:53,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 863 Invalid, 2171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [508 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 14:57:53,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103942 states. [2024-11-08 14:57:56,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103942 to 103711. [2024-11-08 14:57:57,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103711 states, 88346 states have (on average 1.5735177597174745) internal successors, (139014), 88353 states have internal predecessors, (139014), 15336 states have call successors, (15336), 24 states have call predecessors, (15336), 28 states have return successors, (17527), 15335 states have call predecessors, (17527), 15335 states have call successors, (17527) [2024-11-08 14:57:57,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103711 states to 103711 states and 171877 transitions. [2024-11-08 14:57:57,596 INFO L78 Accepts]: Start accepts. Automaton has 103711 states and 171877 transitions. Word has length 178 [2024-11-08 14:57:57,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:57:57,597 INFO L471 AbstractCegarLoop]: Abstraction has 103711 states and 171877 transitions. [2024-11-08 14:57:57,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 14:57:57,597 INFO L276 IsEmpty]: Start isEmpty. Operand 103711 states and 171877 transitions. [2024-11-08 14:57:57,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-08 14:57:57,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:57:57,736 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:57:57,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 14:57:57,736 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:57:57,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:57:57,737 INFO L85 PathProgramCache]: Analyzing trace with hash 24264757, now seen corresponding path program 1 times [2024-11-08 14:57:57,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:57:57,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117298070] [2024-11-08 14:57:57,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:57,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:57:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 14:57:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:57:58,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 14:57:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 14:57:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:57:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 14:57:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 14:57:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 14:57:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 14:57:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 14:57:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 14:57:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 14:57:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 14:57:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-08 14:57:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 14:57:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-08 14:57:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-08 14:57:58,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:57:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,495 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-08 14:57:58,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:57:58,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117298070] [2024-11-08 14:57:58,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117298070] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:57:58,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035212427] [2024-11-08 14:57:58,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:57:58,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:57:58,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:57:58,497 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) [2024-11-08 14:57:58,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 14:57:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:57:58,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 1294 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 14:57:58,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:57:59,119 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 14:57:59,119 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 14:57:59,458 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-08 14:57:59,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035212427] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 14:57:59,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 14:57:59,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 32 [2024-11-08 14:57:59,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65077366] [2024-11-08 14:57:59,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 14:57:59,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-08 14:57:59,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:57:59,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-08 14:57:59,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=914, Unknown=0, NotChecked=0, Total=992 [2024-11-08 14:57:59,462 INFO L87 Difference]: Start difference. First operand 103711 states and 171877 transitions. Second operand has 32 states, 30 states have (on average 8.833333333333334) internal successors, (265), 24 states have internal predecessors, (265), 9 states have call successors, (53), 12 states have call predecessors, (53), 12 states have return successors, (46), 11 states have call predecessors, (46), 9 states have call successors, (46)