./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec3_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec3_product27.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 1c4d0e54eab5e94cf1a4af64165a2546f1c45e063bd8600195a743522777000c --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 03:53:12,916 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 03:53:12,969 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 03:53:12,976 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 03:53:12,976 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 03:53:13,001 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 03:53:13,001 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 03:53:13,001 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 03:53:13,001 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 03:53:13,001 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 03:53:13,002 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 03:53:13,002 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 03:53:13,002 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 03:53:13,002 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 03:53:13,002 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 03:53:13,003 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 03:53:13,003 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 03:53:13,003 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 03:53:13,003 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 03:53:13,003 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 03:53:13,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 03:53:13,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 03:53:13,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 03:53:13,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 03:53:13,003 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 03:53:13,003 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 03:53:13,003 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 03:53:13,004 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 03:53:13,004 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 03:53:13,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:53:13,004 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:53:13,004 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:53:13,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:53:13,004 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 03:53:13,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:53:13,004 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:53:13,004 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:53:13,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:53:13,004 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 03:53:13,004 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 03:53:13,004 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 03:53:13,004 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 03:53:13,004 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 03:53:13,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 03:53:13,005 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 03:53:13,005 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 03:53:13,005 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 03:53:13,005 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 03:53:13,005 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 1c4d0e54eab5e94cf1a4af64165a2546f1c45e063bd8600195a743522777000c [2025-01-09 03:53:13,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 03:53:13,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 03:53:13,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 03:53:13,229 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 03:53:13,229 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 03:53:13,230 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec3_product27.cil.c [2025-01-09 03:53:14,386 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a998eb4e9/ad8a954458b843c0a5e9a85de6aed498/FLAGe4f8dca8d [2025-01-09 03:53:14,740 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 03:53:14,741 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product27.cil.c [2025-01-09 03:53:14,756 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a998eb4e9/ad8a954458b843c0a5e9a85de6aed498/FLAGe4f8dca8d [2025-01-09 03:53:14,980 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a998eb4e9/ad8a954458b843c0a5e9a85de6aed498 [2025-01-09 03:53:14,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 03:53:14,983 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 03:53:14,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 03:53:14,984 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 03:53:14,987 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 03:53:14,988 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:53:14" (1/1) ... [2025-01-09 03:53:14,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab61f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:14, skipping insertion in model container [2025-01-09 03:53:14,989 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:53:14" (1/1) ... [2025-01-09 03:53:15,019 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 03:53:15,367 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product27.cil.c[40661,40674] [2025-01-09 03:53:15,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:53:15,424 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 03:53:15,432 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2025-01-09 03:53:15,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [167] [2025-01-09 03:53:15,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [184] [2025-01-09 03:53:15,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [550] [2025-01-09 03:53:15,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [612] [2025-01-09 03:53:15,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [650] [2025-01-09 03:53:15,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1054] [2025-01-09 03:53:15,434 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1435] [2025-01-09 03:53:15,434 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1756] [2025-01-09 03:53:15,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1978] [2025-01-09 03:53:15,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1987] [2025-01-09 03:53:15,482 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product27.cil.c[40661,40674] [2025-01-09 03:53:15,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:53:15,543 INFO L204 MainTranslator]: Completed translation [2025-01-09 03:53:15,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:15 WrapperNode [2025-01-09 03:53:15,545 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 03:53:15,545 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 03:53:15,545 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 03:53:15,545 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 03:53:15,551 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:15" (1/1) ... [2025-01-09 03:53:15,578 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:15" (1/1) ... [2025-01-09 03:53:15,628 INFO L138 Inliner]: procedures = 134, calls = 215, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 1100 [2025-01-09 03:53:15,633 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 03:53:15,633 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 03:53:15,633 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 03:53:15,634 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 03:53:15,647 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:15" (1/1) ... [2025-01-09 03:53:15,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:15" (1/1) ... [2025-01-09 03:53:15,657 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:15" (1/1) ... [2025-01-09 03:53:15,684 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]. [2025-01-09 03:53:15,684 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:15" (1/1) ... [2025-01-09 03:53:15,685 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:15" (1/1) ... [2025-01-09 03:53:15,697 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:15" (1/1) ... [2025-01-09 03:53:15,699 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:15" (1/1) ... [2025-01-09 03:53:15,714 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:15" (1/1) ... [2025-01-09 03:53:15,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:15" (1/1) ... [2025-01-09 03:53:15,727 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:15" (1/1) ... [2025-01-09 03:53:15,741 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 03:53:15,745 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 03:53:15,745 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 03:53:15,745 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 03:53:15,746 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:15" (1/1) ... [2025-01-09 03:53:15,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:53:15,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:53:15,795 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 03:53:15,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 03:53:15,822 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2025-01-09 03:53:15,823 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2025-01-09 03:53:15,823 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2025-01-09 03:53:15,823 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2025-01-09 03:53:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2025-01-09 03:53:15,824 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2025-01-09 03:53:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2025-01-09 03:53:15,824 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2025-01-09 03:53:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2025-01-09 03:53:15,824 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2025-01-09 03:53:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2025-01-09 03:53:15,825 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2025-01-09 03:53:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2025-01-09 03:53:15,825 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2025-01-09 03:53:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2025-01-09 03:53:15,825 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2025-01-09 03:53:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2025-01-09 03:53:15,825 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2025-01-09 03:53:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2025-01-09 03:53:15,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2025-01-09 03:53:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2025-01-09 03:53:15,826 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2025-01-09 03:53:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2025-01-09 03:53:15,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2025-01-09 03:53:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 03:53:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2025-01-09 03:53:15,826 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2025-01-09 03:53:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2025-01-09 03:53:15,826 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2025-01-09 03:53:15,826 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2025-01-09 03:53:15,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2025-01-09 03:53:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2025-01-09 03:53:15,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2025-01-09 03:53:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2025-01-09 03:53:15,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2025-01-09 03:53:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2025-01-09 03:53:15,827 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2025-01-09 03:53:15,827 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2025-01-09 03:53:15,828 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2025-01-09 03:53:15,828 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2025-01-09 03:53:15,828 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2025-01-09 03:53:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2025-01-09 03:53:15,829 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2025-01-09 03:53:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2025-01-09 03:53:15,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2025-01-09 03:53:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2025-01-09 03:53:15,829 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2025-01-09 03:53:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 03:53:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 03:53:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 03:53:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 03:53:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2025-01-09 03:53:15,829 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2025-01-09 03:53:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2025-01-09 03:53:15,829 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2025-01-09 03:53:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 03:53:15,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 03:53:15,998 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 03:53:15,999 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 03:53:16,789 INFO L? ?]: Removed 564 outVars from TransFormulas that were not future-live. [2025-01-09 03:53:16,789 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 03:53:16,804 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 03:53:16,804 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 03:53:16,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:53:16 BoogieIcfgContainer [2025-01-09 03:53:16,804 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 03:53:16,808 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 03:53:16,808 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 03:53:16,811 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 03:53:16,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 03:53:14" (1/3) ... [2025-01-09 03:53:16,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0912ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:53:16, skipping insertion in model container [2025-01-09 03:53:16,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:53:15" (2/3) ... [2025-01-09 03:53:16,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0912ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:53:16, skipping insertion in model container [2025-01-09 03:53:16,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:53:16" (3/3) ... [2025-01-09 03:53:16,813 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec3_product27.cil.c [2025-01-09 03:53:16,823 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 03:53:16,825 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec3_product27.cil.c that has 26 procedures, 419 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 03:53:16,870 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 03:53:16,877 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;@a339cd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 03:53:16,877 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 03:53:16,881 INFO L276 IsEmpty]: Start isEmpty. Operand has 419 states, 326 states have (on average 1.5521472392638036) internal successors, (506), 331 states have internal predecessors, (506), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (66), 64 states have call predecessors, (66), 66 states have call successors, (66) [2025-01-09 03:53:16,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-01-09 03:53:16,898 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:16,899 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2025-01-09 03:53:16,899 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:16,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:16,903 INFO L85 PathProgramCache]: Analyzing trace with hash -389201050, now seen corresponding path program 1 times [2025-01-09 03:53:16,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:16,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952917700] [2025-01-09 03:53:16,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:16,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:17,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-01-09 03:53:17,096 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-01-09 03:53:17,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:17,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:17,541 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-09 03:53:17,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:17,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952917700] [2025-01-09 03:53:17,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952917700] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:53:17,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251445128] [2025-01-09 03:53:17,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:17,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:53:17,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:53:17,547 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:53:17,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 03:53:17,777 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-01-09 03:53:17,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-01-09 03:53:17,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:17,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:17,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 03:53:17,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:53:17,944 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-01-09 03:53:17,944 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:53:17,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251445128] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:17,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:53:17,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-01-09 03:53:17,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159059449] [2025-01-09 03:53:17,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:17,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:17,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:17,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:17,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:53:17,966 INFO L87 Difference]: Start difference. First operand has 419 states, 326 states have (on average 1.5521472392638036) internal successors, (506), 331 states have internal predecessors, (506), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (66), 64 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:53:18,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:18,063 INFO L93 Difference]: Finished difference Result 642 states and 964 transitions. [2025-01-09 03:53:18,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:18,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2025-01-09 03:53:18,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:18,076 INFO L225 Difference]: With dead ends: 642 [2025-01-09 03:53:18,077 INFO L226 Difference]: Without dead ends: 413 [2025-01-09 03:53:18,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:53:18,086 INFO L435 NwaCegarLoop]: 631 mSDtfsCounter, 1 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:53:18,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1259 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:18,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2025-01-09 03:53:18,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 412. [2025-01-09 03:53:18,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 321 states have (on average 1.5482866043613708) internal successors, (497), 324 states have internal predecessors, (497), 66 states have call successors, (66), 25 states have call predecessors, (66), 24 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2025-01-09 03:53:18,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 626 transitions. [2025-01-09 03:53:18,149 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 626 transitions. Word has length 131 [2025-01-09 03:53:18,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:18,150 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 626 transitions. [2025-01-09 03:53:18,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:53:18,153 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 626 transitions. [2025-01-09 03:53:18,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2025-01-09 03:53:18,157 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:18,159 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:18,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 03:53:18,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 03:53:18,360 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:18,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:18,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1691851015, now seen corresponding path program 1 times [2025-01-09 03:53:18,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:18,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693794526] [2025-01-09 03:53:18,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:18,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:18,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-01-09 03:53:18,425 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-01-09 03:53:18,430 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:18,430 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:18,652 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:53:18,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:18,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693794526] [2025-01-09 03:53:18,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693794526] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:53:18,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805683723] [2025-01-09 03:53:18,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:18,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:53:18,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:53:18,657 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:53:18,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 03:53:18,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-01-09 03:53:18,923 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-01-09 03:53:18,924 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:18,924 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:18,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 1117 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:53:18,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:53:18,945 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-09 03:53:18,945 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:53:18,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805683723] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:18,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:53:18,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-01-09 03:53:18,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671237872] [2025-01-09 03:53:18,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:18,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:18,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:18,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:18,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:53:18,947 INFO L87 Difference]: Start difference. First operand 412 states and 626 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:53:18,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:18,976 INFO L93 Difference]: Finished difference Result 877 states and 1352 transitions. [2025-01-09 03:53:18,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:18,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2025-01-09 03:53:18,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:18,979 INFO L225 Difference]: With dead ends: 877 [2025-01-09 03:53:18,980 INFO L226 Difference]: Without dead ends: 491 [2025-01-09 03:53:18,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:53:18,981 INFO L435 NwaCegarLoop]: 643 mSDtfsCounter, 142 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1222 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 [2025-01-09 03:53:18,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1222 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:18,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2025-01-09 03:53:18,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 483. [2025-01-09 03:53:19,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 378 states have (on average 1.5687830687830688) internal successors, (593), 381 states have internal predecessors, (593), 80 states have call successors, (80), 25 states have call predecessors, (80), 24 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2025-01-09 03:53:19,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 750 transitions. [2025-01-09 03:53:19,003 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 750 transitions. Word has length 120 [2025-01-09 03:53:19,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:19,003 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 750 transitions. [2025-01-09 03:53:19,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:53:19,004 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 750 transitions. [2025-01-09 03:53:19,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-01-09 03:53:19,006 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:19,006 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2025-01-09 03:53:19,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-09 03:53:19,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:53:19,210 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:19,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:19,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1858489050, now seen corresponding path program 1 times [2025-01-09 03:53:19,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:19,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703670929] [2025-01-09 03:53:19,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:19,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:19,248 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 03:53:19,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 03:53:19,255 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:19,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:19,416 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-01-09 03:53:19,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:19,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703670929] [2025-01-09 03:53:19,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703670929] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:53:19,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49642777] [2025-01-09 03:53:19,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:19,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:53:19,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:53:19,421 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:53:19,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 03:53:19,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 03:53:19,679 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 03:53:19,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:19,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:19,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 1200 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 03:53:19,686 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:53:19,731 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-09 03:53:19,732 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:53:19,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49642777] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:19,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:53:19,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-01-09 03:53:19,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044654720] [2025-01-09 03:53:19,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:19,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:53:19,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:19,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:53:19,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:53:19,734 INFO L87 Difference]: Start difference. First operand 483 states and 750 transitions. Second operand has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2025-01-09 03:53:19,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:19,792 INFO L93 Difference]: Finished difference Result 957 states and 1490 transitions. [2025-01-09 03:53:19,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:53:19,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 140 [2025-01-09 03:53:19,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:19,796 INFO L225 Difference]: With dead ends: 957 [2025-01-09 03:53:19,797 INFO L226 Difference]: Without dead ends: 485 [2025-01-09 03:53:19,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:53:19,799 INFO L435 NwaCegarLoop]: 617 mSDtfsCounter, 2 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2457 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 [2025-01-09 03:53:19,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2457 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:19,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2025-01-09 03:53:19,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 485. [2025-01-09 03:53:19,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 379 states have (on average 1.567282321899736) internal successors, (594), 383 states have internal predecessors, (594), 80 states have call successors, (80), 25 states have call predecessors, (80), 25 states have return successors, (79), 76 states have call predecessors, (79), 77 states have call successors, (79) [2025-01-09 03:53:19,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 753 transitions. [2025-01-09 03:53:19,828 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 753 transitions. Word has length 140 [2025-01-09 03:53:19,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:19,829 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 753 transitions. [2025-01-09 03:53:19,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2025-01-09 03:53:19,829 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 753 transitions. [2025-01-09 03:53:19,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-01-09 03:53:19,833 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:19,833 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:19,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 03:53:20,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:53:20,036 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:20,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:20,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1342141478, now seen corresponding path program 1 times [2025-01-09 03:53:20,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:20,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197060908] [2025-01-09 03:53:20,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:20,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:20,074 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-01-09 03:53:20,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-01-09 03:53:20,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:20,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:20,222 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-09 03:53:20,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:20,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197060908] [2025-01-09 03:53:20,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197060908] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:53:20,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826010096] [2025-01-09 03:53:20,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:20,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:53:20,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:53:20,226 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:53:20,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 03:53:20,368 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-01-09 03:53:20,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-01-09 03:53:20,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:20,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:20,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 1123 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 03:53:20,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:53:20,513 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:53:20,514 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:53:20,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826010096] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:20,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:53:20,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2025-01-09 03:53:20,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630237567] [2025-01-09 03:53:20,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:20,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:53:20,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:20,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:53:20,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:53:20,515 INFO L87 Difference]: Start difference. First operand 485 states and 753 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2025-01-09 03:53:20,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:20,573 INFO L93 Difference]: Finished difference Result 959 states and 1495 transitions. [2025-01-09 03:53:20,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:53:20,574 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2025-01-09 03:53:20,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:20,576 INFO L225 Difference]: With dead ends: 959 [2025-01-09 03:53:20,577 INFO L226 Difference]: Without dead ends: 487 [2025-01-09 03:53:20,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:53:20,579 INFO L435 NwaCegarLoop]: 615 mSDtfsCounter, 2 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2443 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 [2025-01-09 03:53:20,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2443 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:20,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2025-01-09 03:53:20,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 487. [2025-01-09 03:53:20,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 380 states have (on average 1.5657894736842106) internal successors, (595), 385 states have internal predecessors, (595), 80 states have call successors, (80), 25 states have call predecessors, (80), 26 states have return successors, (84), 76 states have call predecessors, (84), 77 states have call successors, (84) [2025-01-09 03:53:20,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 759 transitions. [2025-01-09 03:53:20,594 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 759 transitions. Word has length 122 [2025-01-09 03:53:20,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:20,595 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 759 transitions. [2025-01-09 03:53:20,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2025-01-09 03:53:20,595 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 759 transitions. [2025-01-09 03:53:20,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2025-01-09 03:53:20,597 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:20,597 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:20,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 03:53:20,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:53:20,798 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:20,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:20,799 INFO L85 PathProgramCache]: Analyzing trace with hash -945429484, now seen corresponding path program 1 times [2025-01-09 03:53:20,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:20,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059562009] [2025-01-09 03:53:20,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:20,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:20,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-01-09 03:53:20,823 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-01-09 03:53:20,823 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:20,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:20,940 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:53:20,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:20,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059562009] [2025-01-09 03:53:20,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059562009] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:20,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:20,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 03:53:20,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047761648] [2025-01-09 03:53:20,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:20,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:53:20,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:20,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:53:20,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:53:20,943 INFO L87 Difference]: Start difference. First operand 487 states and 759 transitions. Second operand has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2025-01-09 03:53:20,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:20,981 INFO L93 Difference]: Finished difference Result 951 states and 1486 transitions. [2025-01-09 03:53:20,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:53:20,981 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2025-01-09 03:53:20,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:20,984 INFO L225 Difference]: With dead ends: 951 [2025-01-09 03:53:20,984 INFO L226 Difference]: Without dead ends: 487 [2025-01-09 03:53:20,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:53:20,986 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 2 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:53:20,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2461 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:20,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2025-01-09 03:53:20,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 487. [2025-01-09 03:53:20,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 380 states have (on average 1.5657894736842106) internal successors, (595), 385 states have internal predecessors, (595), 80 states have call successors, (80), 25 states have call predecessors, (80), 26 states have return successors, (83), 76 states have call predecessors, (83), 77 states have call successors, (83) [2025-01-09 03:53:21,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 758 transitions. [2025-01-09 03:53:21,002 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 758 transitions. Word has length 123 [2025-01-09 03:53:21,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:21,002 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 758 transitions. [2025-01-09 03:53:21,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2025-01-09 03:53:21,003 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 758 transitions. [2025-01-09 03:53:21,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2025-01-09 03:53:21,005 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:21,005 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2025-01-09 03:53:21,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 03:53:21,005 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:21,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:21,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1897721458, now seen corresponding path program 1 times [2025-01-09 03:53:21,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:21,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400656649] [2025-01-09 03:53:21,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:21,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:21,024 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-01-09 03:53:21,029 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-01-09 03:53:21,029 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:21,029 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:21,138 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-01-09 03:53:21,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:21,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400656649] [2025-01-09 03:53:21,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400656649] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:21,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:21,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 03:53:21,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559063782] [2025-01-09 03:53:21,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:21,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:53:21,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:21,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:53:21,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:53:21,140 INFO L87 Difference]: Start difference. First operand 487 states and 758 transitions. Second operand has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2025-01-09 03:53:21,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:21,205 INFO L93 Difference]: Finished difference Result 953 states and 1489 transitions. [2025-01-09 03:53:21,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:53:21,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 143 [2025-01-09 03:53:21,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:21,208 INFO L225 Difference]: With dead ends: 953 [2025-01-09 03:53:21,208 INFO L226 Difference]: Without dead ends: 489 [2025-01-09 03:53:21,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:53:21,210 INFO L435 NwaCegarLoop]: 619 mSDtfsCounter, 1 mSDsluCounter, 1845 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2464 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 [2025-01-09 03:53:21,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2464 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:21,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2025-01-09 03:53:21,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2025-01-09 03:53:21,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 381 states have (on average 1.5643044619422573) internal successors, (596), 387 states have internal predecessors, (596), 80 states have call successors, (80), 25 states have call predecessors, (80), 27 states have return successors, (85), 76 states have call predecessors, (85), 77 states have call successors, (85) [2025-01-09 03:53:21,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 761 transitions. [2025-01-09 03:53:21,228 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 761 transitions. Word has length 143 [2025-01-09 03:53:21,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:21,228 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 761 transitions. [2025-01-09 03:53:21,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2025-01-09 03:53:21,228 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 761 transitions. [2025-01-09 03:53:21,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2025-01-09 03:53:21,230 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:21,230 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:21,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 03:53:21,231 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:21,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:21,231 INFO L85 PathProgramCache]: Analyzing trace with hash 2049424409, now seen corresponding path program 1 times [2025-01-09 03:53:21,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:21,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136089886] [2025-01-09 03:53:21,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:21,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:21,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-01-09 03:53:21,252 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-01-09 03:53:21,252 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:21,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:21,362 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-09 03:53:21,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:21,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136089886] [2025-01-09 03:53:21,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136089886] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:21,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:21,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 03:53:21,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033347] [2025-01-09 03:53:21,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:21,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:53:21,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:21,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:53:21,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:53:21,363 INFO L87 Difference]: Start difference. First operand 489 states and 761 transitions. Second operand has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2025-01-09 03:53:21,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:21,482 INFO L93 Difference]: Finished difference Result 955 states and 1488 transitions. [2025-01-09 03:53:21,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 03:53:21,482 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 125 [2025-01-09 03:53:21,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:21,485 INFO L225 Difference]: With dead ends: 955 [2025-01-09 03:53:21,485 INFO L226 Difference]: Without dead ends: 491 [2025-01-09 03:53:21,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:53:21,487 INFO L435 NwaCegarLoop]: 609 mSDtfsCounter, 7 mSDsluCounter, 3625 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4234 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:53:21,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4234 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:53:21,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2025-01-09 03:53:21,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2025-01-09 03:53:21,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 383 states have (on average 1.5613577023498695) internal successors, (598), 388 states have internal predecessors, (598), 80 states have call successors, (80), 26 states have call predecessors, (80), 27 states have return successors, (84), 76 states have call predecessors, (84), 77 states have call successors, (84) [2025-01-09 03:53:21,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 762 transitions. [2025-01-09 03:53:21,504 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 762 transitions. Word has length 125 [2025-01-09 03:53:21,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:21,504 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 762 transitions. [2025-01-09 03:53:21,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 8 states have internal predecessors, (86), 4 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2025-01-09 03:53:21,505 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 762 transitions. [2025-01-09 03:53:21,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2025-01-09 03:53:21,506 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:21,506 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:21,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 03:53:21,507 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:21,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:21,507 INFO L85 PathProgramCache]: Analyzing trace with hash -598816777, now seen corresponding path program 2 times [2025-01-09 03:53:21,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:21,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423244182] [2025-01-09 03:53:21,508 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 03:53:21,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:21,524 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 126 statements into 2 equivalence classes. [2025-01-09 03:53:21,533 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 126 of 126 statements. [2025-01-09 03:53:21,533 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 03:53:21,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:21,666 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-09 03:53:21,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:21,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423244182] [2025-01-09 03:53:21,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423244182] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:21,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:21,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:53:21,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334073433] [2025-01-09 03:53:21,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:21,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:53:21,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:21,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:53:21,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:53:21,668 INFO L87 Difference]: Start difference. First operand 491 states and 762 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2025-01-09 03:53:21,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:21,740 INFO L93 Difference]: Finished difference Result 955 states and 1492 transitions. [2025-01-09 03:53:21,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:53:21,741 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 126 [2025-01-09 03:53:21,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:21,744 INFO L225 Difference]: With dead ends: 955 [2025-01-09 03:53:21,744 INFO L226 Difference]: Without dead ends: 493 [2025-01-09 03:53:21,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:53:21,746 INFO L435 NwaCegarLoop]: 617 mSDtfsCounter, 2 mSDsluCounter, 2445 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3062 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:53:21,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3062 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:21,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2025-01-09 03:53:21,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 493. [2025-01-09 03:53:21,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 384 states have (on average 1.5598958333333333) internal successors, (599), 390 states have internal predecessors, (599), 80 states have call successors, (80), 26 states have call predecessors, (80), 28 states have return successors, (89), 76 states have call predecessors, (89), 77 states have call successors, (89) [2025-01-09 03:53:21,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 768 transitions. [2025-01-09 03:53:21,764 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 768 transitions. Word has length 126 [2025-01-09 03:53:21,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:21,764 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 768 transitions. [2025-01-09 03:53:21,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 7 states have internal predecessors, (84), 4 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2025-01-09 03:53:21,764 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 768 transitions. [2025-01-09 03:53:21,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2025-01-09 03:53:21,766 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:21,766 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2025-01-09 03:53:21,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 03:53:21,767 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:21,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:21,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1776674884, now seen corresponding path program 1 times [2025-01-09 03:53:21,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:21,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574255373] [2025-01-09 03:53:21,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:21,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:21,788 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes. [2025-01-09 03:53:21,796 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 146 of 146 statements. [2025-01-09 03:53:21,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:21,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:21,922 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-01-09 03:53:21,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:21,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574255373] [2025-01-09 03:53:21,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574255373] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:53:21,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064722371] [2025-01-09 03:53:21,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:21,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:53:21,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:53:21,928 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:53:21,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-09 03:53:22,080 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes. [2025-01-09 03:53:22,185 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 146 of 146 statements. [2025-01-09 03:53:22,185 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:22,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:22,190 INFO L256 TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:53:22,193 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:53:22,252 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-01-09 03:53:22,254 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:53:22,343 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-01-09 03:53:22,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064722371] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 03:53:22,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 03:53:22,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 11 [2025-01-09 03:53:22,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442446165] [2025-01-09 03:53:22,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 03:53:22,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-09 03:53:22,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:22,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-09 03:53:22,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:53:22,345 INFO L87 Difference]: Start difference. First operand 493 states and 768 transitions. Second operand has 11 states, 10 states have (on average 14.6) internal successors, (146), 11 states have internal predecessors, (146), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2025-01-09 03:53:22,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:22,986 INFO L93 Difference]: Finished difference Result 1419 states and 2304 transitions. [2025-01-09 03:53:22,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 03:53:22,987 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.6) internal successors, (146), 11 states have internal predecessors, (146), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) Word has length 146 [2025-01-09 03:53:22,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:22,993 INFO L225 Difference]: With dead ends: 1419 [2025-01-09 03:53:22,993 INFO L226 Difference]: Without dead ends: 956 [2025-01-09 03:53:22,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2025-01-09 03:53:22,997 INFO L435 NwaCegarLoop]: 608 mSDtfsCounter, 1594 mSDsluCounter, 3787 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 4395 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 03:53:22,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1594 Valid, 4395 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 03:53:22,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2025-01-09 03:53:23,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 930. [2025-01-09 03:53:23,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 742 states have (on average 1.6159029649595686) internal successors, (1199), 748 states have internal predecessors, (1199), 159 states have call successors, (159), 26 states have call predecessors, (159), 28 states have return successors, (178), 155 states have call predecessors, (178), 156 states have call successors, (178) [2025-01-09 03:53:23,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1536 transitions. [2025-01-09 03:53:23,037 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1536 transitions. Word has length 146 [2025-01-09 03:53:23,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:23,037 INFO L471 AbstractCegarLoop]: Abstraction has 930 states and 1536 transitions. [2025-01-09 03:53:23,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.6) internal successors, (146), 11 states have internal predecessors, (146), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) [2025-01-09 03:53:23,038 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1536 transitions. [2025-01-09 03:53:23,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-01-09 03:53:23,042 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:23,042 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:23,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-09 03:53:23,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:53:23,247 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:23,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:23,248 INFO L85 PathProgramCache]: Analyzing trace with hash -611045787, now seen corresponding path program 1 times [2025-01-09 03:53:23,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:23,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672107243] [2025-01-09 03:53:23,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:23,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:23,268 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-01-09 03:53:23,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-01-09 03:53:23,277 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:23,277 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:23,315 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-09 03:53:23,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:23,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672107243] [2025-01-09 03:53:23,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672107243] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:23,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:23,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:23,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673325633] [2025-01-09 03:53:23,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:23,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:23,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:23,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:23,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:23,317 INFO L87 Difference]: Start difference. First operand 930 states and 1536 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:53:23,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:23,359 INFO L93 Difference]: Finished difference Result 2198 states and 3688 transitions. [2025-01-09 03:53:23,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:23,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2025-01-09 03:53:23,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:23,367 INFO L225 Difference]: With dead ends: 2198 [2025-01-09 03:53:23,368 INFO L226 Difference]: Without dead ends: 1346 [2025-01-09 03:53:23,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:23,371 INFO L435 NwaCegarLoop]: 634 mSDtfsCounter, 139 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 1248 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 [2025-01-09 03:53:23,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 1248 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:23,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2025-01-09 03:53:23,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1338. [2025-01-09 03:53:23,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1071 states have (on average 1.6358543417366946) internal successors, (1752), 1077 states have internal predecessors, (1752), 238 states have call successors, (238), 26 states have call predecessors, (238), 28 states have return successors, (267), 234 states have call predecessors, (267), 235 states have call successors, (267) [2025-01-09 03:53:23,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 2257 transitions. [2025-01-09 03:53:23,450 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 2257 transitions. Word has length 131 [2025-01-09 03:53:23,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:23,451 INFO L471 AbstractCegarLoop]: Abstraction has 1338 states and 2257 transitions. [2025-01-09 03:53:23,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:53:23,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 2257 transitions. [2025-01-09 03:53:23,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-01-09 03:53:23,458 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:23,458 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:23,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 03:53:23,458 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:23,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:23,459 INFO L85 PathProgramCache]: Analyzing trace with hash 920044717, now seen corresponding path program 1 times [2025-01-09 03:53:23,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:23,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518618641] [2025-01-09 03:53:23,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:23,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:23,477 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-01-09 03:53:23,485 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-01-09 03:53:23,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:23,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:23,513 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-09 03:53:23,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:23,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518618641] [2025-01-09 03:53:23,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518618641] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:23,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:23,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:23,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623597919] [2025-01-09 03:53:23,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:23,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:23,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:23,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:23,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:23,514 INFO L87 Difference]: Start difference. First operand 1338 states and 2257 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:53:23,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:23,574 INFO L93 Difference]: Finished difference Result 3220 states and 5468 transitions. [2025-01-09 03:53:23,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:23,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2025-01-09 03:53:23,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:23,584 INFO L225 Difference]: With dead ends: 3220 [2025-01-09 03:53:23,584 INFO L226 Difference]: Without dead ends: 2011 [2025-01-09 03:53:23,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:23,589 INFO L435 NwaCegarLoop]: 625 mSDtfsCounter, 137 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1242 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 [2025-01-09 03:53:23,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1242 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:23,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2025-01-09 03:53:23,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 2003. [2025-01-09 03:53:23,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2003 states, 1617 states have (on average 1.6462585034013606) internal successors, (2662), 1623 states have internal predecessors, (2662), 357 states have call successors, (357), 26 states have call predecessors, (357), 28 states have return successors, (386), 353 states have call predecessors, (386), 354 states have call successors, (386) [2025-01-09 03:53:23,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 3405 transitions. [2025-01-09 03:53:23,674 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 3405 transitions. Word has length 132 [2025-01-09 03:53:23,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:23,674 INFO L471 AbstractCegarLoop]: Abstraction has 2003 states and 3405 transitions. [2025-01-09 03:53:23,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:53:23,674 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 3405 transitions. [2025-01-09 03:53:23,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2025-01-09 03:53:23,684 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:23,684 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2025-01-09 03:53:23,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-09 03:53:23,684 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:23,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:23,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1721637533, now seen corresponding path program 1 times [2025-01-09 03:53:23,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:23,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426710500] [2025-01-09 03:53:23,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:23,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:23,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 152 statements into 1 equivalence classes. [2025-01-09 03:53:23,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 152 of 152 statements. [2025-01-09 03:53:23,717 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:23,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:23,761 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-01-09 03:53:23,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:23,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426710500] [2025-01-09 03:53:23,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426710500] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:23,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:23,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:23,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453083626] [2025-01-09 03:53:23,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:23,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:23,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:23,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:23,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:23,763 INFO L87 Difference]: Start difference. First operand 2003 states and 3405 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:53:23,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:23,863 INFO L93 Difference]: Finished difference Result 4777 states and 8185 transitions. [2025-01-09 03:53:23,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:23,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2025-01-09 03:53:23,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:23,878 INFO L225 Difference]: With dead ends: 4777 [2025-01-09 03:53:23,878 INFO L226 Difference]: Without dead ends: 3034 [2025-01-09 03:53:23,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:23,884 INFO L435 NwaCegarLoop]: 623 mSDtfsCounter, 135 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1237 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 [2025-01-09 03:53:23,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1237 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:23,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3034 states. [2025-01-09 03:53:23,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3034 to 3026. [2025-01-09 03:53:23,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3026 states, 2478 states have (on average 1.6545601291364003) internal successors, (4100), 2484 states have internal predecessors, (4100), 519 states have call successors, (519), 26 states have call predecessors, (519), 28 states have return successors, (564), 515 states have call predecessors, (564), 516 states have call successors, (564) [2025-01-09 03:53:24,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3026 states to 3026 states and 5183 transitions. [2025-01-09 03:53:24,008 INFO L78 Accepts]: Start accepts. Automaton has 3026 states and 5183 transitions. Word has length 152 [2025-01-09 03:53:24,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:24,010 INFO L471 AbstractCegarLoop]: Abstraction has 3026 states and 5183 transitions. [2025-01-09 03:53:24,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:53:24,010 INFO L276 IsEmpty]: Start isEmpty. Operand 3026 states and 5183 transitions. [2025-01-09 03:53:24,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-01-09 03:53:24,023 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:24,024 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2025-01-09 03:53:24,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-09 03:53:24,024 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:24,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:24,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1668419694, now seen corresponding path program 1 times [2025-01-09 03:53:24,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:24,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892795391] [2025-01-09 03:53:24,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:24,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:24,043 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-01-09 03:53:24,048 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-01-09 03:53:24,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:24,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:24,075 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-01-09 03:53:24,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:24,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892795391] [2025-01-09 03:53:24,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892795391] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:24,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:24,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:24,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543394945] [2025-01-09 03:53:24,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:24,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:24,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:24,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:24,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:24,077 INFO L87 Difference]: Start difference. First operand 3026 states and 5183 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:53:24,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:24,243 INFO L93 Difference]: Finished difference Result 7245 states and 12497 transitions. [2025-01-09 03:53:24,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:24,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 153 [2025-01-09 03:53:24,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:24,267 INFO L225 Difference]: With dead ends: 7245 [2025-01-09 03:53:24,268 INFO L226 Difference]: Without dead ends: 4691 [2025-01-09 03:53:24,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:24,279 INFO L435 NwaCegarLoop]: 623 mSDtfsCounter, 133 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1237 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 [2025-01-09 03:53:24,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1237 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:24,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4691 states. [2025-01-09 03:53:24,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4691 to 4683. [2025-01-09 03:53:24,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4683 states, 3890 states have (on average 1.6604113110539847) internal successors, (6459), 3896 states have internal predecessors, (6459), 764 states have call successors, (764), 26 states have call predecessors, (764), 28 states have return successors, (835), 760 states have call predecessors, (835), 761 states have call successors, (835) [2025-01-09 03:53:24,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4683 states to 4683 states and 8058 transitions. [2025-01-09 03:53:24,510 INFO L78 Accepts]: Start accepts. Automaton has 4683 states and 8058 transitions. Word has length 153 [2025-01-09 03:53:24,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:24,510 INFO L471 AbstractCegarLoop]: Abstraction has 4683 states and 8058 transitions. [2025-01-09 03:53:24,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:53:24,511 INFO L276 IsEmpty]: Start isEmpty. Operand 4683 states and 8058 transitions. [2025-01-09 03:53:24,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-01-09 03:53:24,527 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:24,527 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2025-01-09 03:53:24,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-09 03:53:24,527 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:24,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:24,528 INFO L85 PathProgramCache]: Analyzing trace with hash -852796449, now seen corresponding path program 1 times [2025-01-09 03:53:24,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:24,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428441996] [2025-01-09 03:53:24,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:24,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:24,544 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-01-09 03:53:24,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-01-09 03:53:24,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:24,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:24,579 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-01-09 03:53:24,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:24,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428441996] [2025-01-09 03:53:24,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428441996] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:24,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:24,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:24,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437231596] [2025-01-09 03:53:24,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:24,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:24,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:24,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:24,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:24,581 INFO L87 Difference]: Start difference. First operand 4683 states and 8058 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:53:24,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:24,773 INFO L93 Difference]: Finished difference Result 11369 states and 19697 transitions. [2025-01-09 03:53:24,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:24,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 154 [2025-01-09 03:53:24,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:24,807 INFO L225 Difference]: With dead ends: 11369 [2025-01-09 03:53:24,807 INFO L226 Difference]: Without dead ends: 7479 [2025-01-09 03:53:24,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:24,820 INFO L435 NwaCegarLoop]: 629 mSDtfsCounter, 131 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1241 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 [2025-01-09 03:53:24,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1241 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:24,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7479 states. [2025-01-09 03:53:25,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7479 to 7471. [2025-01-09 03:53:25,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7471 states, 6185 states have (on average 1.6593371059013744) internal successors, (10263), 6191 states have internal predecessors, (10263), 1257 states have call successors, (1257), 26 states have call predecessors, (1257), 28 states have return successors, (1372), 1253 states have call predecessors, (1372), 1254 states have call successors, (1372) [2025-01-09 03:53:25,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7471 states to 7471 states and 12892 transitions. [2025-01-09 03:53:25,195 INFO L78 Accepts]: Start accepts. Automaton has 7471 states and 12892 transitions. Word has length 154 [2025-01-09 03:53:25,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:25,196 INFO L471 AbstractCegarLoop]: Abstraction has 7471 states and 12892 transitions. [2025-01-09 03:53:25,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:53:25,196 INFO L276 IsEmpty]: Start isEmpty. Operand 7471 states and 12892 transitions. [2025-01-09 03:53:25,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-01-09 03:53:25,219 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:25,219 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2025-01-09 03:53:25,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-09 03:53:25,220 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:25,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:25,220 INFO L85 PathProgramCache]: Analyzing trace with hash -877505038, now seen corresponding path program 1 times [2025-01-09 03:53:25,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:25,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103501558] [2025-01-09 03:53:25,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:25,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:25,238 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-01-09 03:53:25,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-01-09 03:53:25,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:25,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:25,272 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-01-09 03:53:25,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:25,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103501558] [2025-01-09 03:53:25,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103501558] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:25,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:25,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:25,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311444896] [2025-01-09 03:53:25,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:25,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:25,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:25,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:25,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:25,274 INFO L87 Difference]: Start difference. First operand 7471 states and 12892 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:53:25,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:25,555 INFO L93 Difference]: Finished difference Result 18851 states and 32729 transitions. [2025-01-09 03:53:25,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:25,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 155 [2025-01-09 03:53:25,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:25,622 INFO L225 Difference]: With dead ends: 18851 [2025-01-09 03:53:25,622 INFO L226 Difference]: Without dead ends: 12559 [2025-01-09 03:53:25,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:25,648 INFO L435 NwaCegarLoop]: 625 mSDtfsCounter, 129 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1242 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 [2025-01-09 03:53:25,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1242 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:25,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12559 states. [2025-01-09 03:53:26,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12559 to 12551. [2025-01-09 03:53:26,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12551 states, 10443 states have (on average 1.6596763382169875) internal successors, (17332), 10449 states have internal predecessors, (17332), 2079 states have call successors, (2079), 26 states have call predecessors, (2079), 28 states have return successors, (2272), 2075 states have call predecessors, (2272), 2076 states have call successors, (2272) [2025-01-09 03:53:26,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12551 states to 12551 states and 21683 transitions. [2025-01-09 03:53:26,270 INFO L78 Accepts]: Start accepts. Automaton has 12551 states and 21683 transitions. Word has length 155 [2025-01-09 03:53:26,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:26,271 INFO L471 AbstractCegarLoop]: Abstraction has 12551 states and 21683 transitions. [2025-01-09 03:53:26,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:53:26,271 INFO L276 IsEmpty]: Start isEmpty. Operand 12551 states and 21683 transitions. [2025-01-09 03:53:26,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-01-09 03:53:26,307 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:26,307 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:26,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-09 03:53:26,307 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:26,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:26,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1588847347, now seen corresponding path program 1 times [2025-01-09 03:53:26,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:26,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416109815] [2025-01-09 03:53:26,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:26,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:26,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-01-09 03:53:26,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-01-09 03:53:26,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:26,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:26,378 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-01-09 03:53:26,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:26,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416109815] [2025-01-09 03:53:26,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416109815] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:26,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:26,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:26,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435934197] [2025-01-09 03:53:26,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:26,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:26,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:26,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:26,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:26,380 INFO L87 Difference]: Start difference. First operand 12551 states and 21683 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:53:26,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:26,804 INFO L93 Difference]: Finished difference Result 30096 states and 51910 transitions. [2025-01-09 03:53:26,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:26,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 156 [2025-01-09 03:53:26,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:26,880 INFO L225 Difference]: With dead ends: 30096 [2025-01-09 03:53:26,880 INFO L226 Difference]: Without dead ends: 19706 [2025-01-09 03:53:26,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:26,920 INFO L435 NwaCegarLoop]: 623 mSDtfsCounter, 127 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1212 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 [2025-01-09 03:53:26,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 1212 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:26,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19706 states. [2025-01-09 03:53:27,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19706 to 19698. [2025-01-09 03:53:27,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19698 states, 16387 states have (on average 1.6361750167815952) internal successors, (26812), 16393 states have internal predecessors, (26812), 3282 states have call successors, (3282), 26 states have call predecessors, (3282), 28 states have return successors, (3619), 3278 states have call predecessors, (3619), 3279 states have call successors, (3619) [2025-01-09 03:53:27,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19698 states to 19698 states and 33713 transitions. [2025-01-09 03:53:27,665 INFO L78 Accepts]: Start accepts. Automaton has 19698 states and 33713 transitions. Word has length 156 [2025-01-09 03:53:27,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:27,665 INFO L471 AbstractCegarLoop]: Abstraction has 19698 states and 33713 transitions. [2025-01-09 03:53:27,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:53:27,665 INFO L276 IsEmpty]: Start isEmpty. Operand 19698 states and 33713 transitions. [2025-01-09 03:53:27,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2025-01-09 03:53:27,695 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:27,695 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:27,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-09 03:53:27,695 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:27,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:27,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1614403193, now seen corresponding path program 1 times [2025-01-09 03:53:27,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:27,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982076474] [2025-01-09 03:53:27,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:27,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:27,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-01-09 03:53:27,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-01-09 03:53:27,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:27,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:27,871 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-09 03:53:27,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:27,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982076474] [2025-01-09 03:53:27,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982076474] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:27,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:27,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:27,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526549215] [2025-01-09 03:53:27,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:27,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:27,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:27,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:27,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:27,873 INFO L87 Difference]: Start difference. First operand 19698 states and 33713 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:53:28,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:28,648 INFO L93 Difference]: Finished difference Result 52098 states and 89464 transitions. [2025-01-09 03:53:28,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:28,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2025-01-09 03:53:28,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:28,796 INFO L225 Difference]: With dead ends: 52098 [2025-01-09 03:53:28,796 INFO L226 Difference]: Without dead ends: 35209 [2025-01-09 03:53:28,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:28,854 INFO L435 NwaCegarLoop]: 623 mSDtfsCounter, 125 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1240 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 [2025-01-09 03:53:28,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1240 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:28,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35209 states. [2025-01-09 03:53:30,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35209 to 35201. [2025-01-09 03:53:30,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35201 states, 29440 states have (on average 1.6328464673913043) internal successors, (48071), 29446 states have internal predecessors, (48071), 5732 states have call successors, (5732), 26 states have call predecessors, (5732), 28 states have return successors, (6343), 5728 states have call predecessors, (6343), 5729 states have call successors, (6343) [2025-01-09 03:53:30,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35201 states to 35201 states and 60146 transitions. [2025-01-09 03:53:30,250 INFO L78 Accepts]: Start accepts. Automaton has 35201 states and 60146 transitions. Word has length 138 [2025-01-09 03:53:30,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:30,251 INFO L471 AbstractCegarLoop]: Abstraction has 35201 states and 60146 transitions. [2025-01-09 03:53:30,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:53:30,251 INFO L276 IsEmpty]: Start isEmpty. Operand 35201 states and 60146 transitions. [2025-01-09 03:53:30,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-01-09 03:53:30,282 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:30,282 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:30,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-01-09 03:53:30,282 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:30,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:30,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1845691545, now seen corresponding path program 1 times [2025-01-09 03:53:30,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:30,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884092228] [2025-01-09 03:53:30,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:30,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:30,300 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-01-09 03:53:30,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-01-09 03:53:30,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:30,310 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:30,340 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-01-09 03:53:30,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:30,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884092228] [2025-01-09 03:53:30,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884092228] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:30,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:30,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:30,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046762634] [2025-01-09 03:53:30,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:30,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:30,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:30,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:30,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:30,342 INFO L87 Difference]: Start difference. First operand 35201 states and 60146 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:53:31,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:31,542 INFO L93 Difference]: Finished difference Result 96110 states and 164656 transitions. [2025-01-09 03:53:31,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:31,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 158 [2025-01-09 03:53:31,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:31,776 INFO L225 Difference]: With dead ends: 96110 [2025-01-09 03:53:31,777 INFO L226 Difference]: Without dead ends: 64637 [2025-01-09 03:53:31,849 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:31,850 INFO L435 NwaCegarLoop]: 624 mSDtfsCounter, 123 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1241 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 [2025-01-09 03:53:31,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1241 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:31,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64637 states. [2025-01-09 03:53:34,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64637 to 64629. [2025-01-09 03:53:34,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64629 states, 54355 states have (on average 1.6284610431423052) internal successors, (88515), 54361 states have internal predecessors, (88515), 10245 states have call successors, (10245), 26 states have call predecessors, (10245), 28 states have return successors, (11388), 10241 states have call predecessors, (11388), 10242 states have call successors, (11388) [2025-01-09 03:53:34,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64629 states to 64629 states and 110148 transitions. [2025-01-09 03:53:34,599 INFO L78 Accepts]: Start accepts. Automaton has 64629 states and 110148 transitions. Word has length 158 [2025-01-09 03:53:34,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:34,599 INFO L471 AbstractCegarLoop]: Abstraction has 64629 states and 110148 transitions. [2025-01-09 03:53:34,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:53:34,600 INFO L276 IsEmpty]: Start isEmpty. Operand 64629 states and 110148 transitions. [2025-01-09 03:53:34,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2025-01-09 03:53:34,638 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:34,639 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:34,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-01-09 03:53:34,639 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:34,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:34,641 INFO L85 PathProgramCache]: Analyzing trace with hash 869101843, now seen corresponding path program 1 times [2025-01-09 03:53:34,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:34,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481904006] [2025-01-09 03:53:34,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:34,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:34,661 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-01-09 03:53:34,669 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-01-09 03:53:34,669 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:34,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:34,706 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-01-09 03:53:34,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:34,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481904006] [2025-01-09 03:53:34,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481904006] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:34,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:34,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:53:34,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093582489] [2025-01-09 03:53:34,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:34,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:53:34,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:34,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:53:34,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:34,708 INFO L87 Difference]: Start difference. First operand 64629 states and 110148 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:53:37,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:37,042 INFO L93 Difference]: Finished difference Result 121252 states and 207001 transitions. [2025-01-09 03:53:37,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:53:37,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 159 [2025-01-09 03:53:37,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:37,491 INFO L225 Difference]: With dead ends: 121252 [2025-01-09 03:53:37,492 INFO L226 Difference]: Without dead ends: 121037 [2025-01-09 03:53:37,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:53:37,548 INFO L435 NwaCegarLoop]: 632 mSDtfsCounter, 118 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:53:37,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1254 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:37,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121037 states. [2025-01-09 03:53:41,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121037 to 121029. [2025-01-09 03:53:41,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121029 states, 102387 states have (on average 1.6230478478713117) internal successors, (166179), 102393 states have internal predecessors, (166179), 18613 states have call successors, (18613), 26 states have call predecessors, (18613), 28 states have return successors, (20802), 18609 states have call predecessors, (20802), 18610 states have call successors, (20802) [2025-01-09 03:53:41,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121029 states to 121029 states and 205594 transitions. [2025-01-09 03:53:41,654 INFO L78 Accepts]: Start accepts. Automaton has 121029 states and 205594 transitions. Word has length 159 [2025-01-09 03:53:41,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:41,655 INFO L471 AbstractCegarLoop]: Abstraction has 121029 states and 205594 transitions. [2025-01-09 03:53:41,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:53:41,655 INFO L276 IsEmpty]: Start isEmpty. Operand 121029 states and 205594 transitions. [2025-01-09 03:53:41,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-01-09 03:53:41,703 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:41,703 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:41,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-01-09 03:53:41,703 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:41,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:41,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1656022284, now seen corresponding path program 1 times [2025-01-09 03:53:41,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:41,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565502495] [2025-01-09 03:53:41,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:41,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:41,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-01-09 03:53:41,731 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-01-09 03:53:41,732 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:41,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:41,872 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-09 03:53:41,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:41,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565502495] [2025-01-09 03:53:41,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565502495] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:41,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:41,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 03:53:41,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220810657] [2025-01-09 03:53:41,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:41,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:53:41,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:41,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:53:41,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:53:41,875 INFO L87 Difference]: Start difference. First operand 121029 states and 205594 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2025-01-09 03:53:44,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:44,302 INFO L93 Difference]: Finished difference Result 121712 states and 206588 transitions. [2025-01-09 03:53:44,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-09 03:53:44,302 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 141 [2025-01-09 03:53:44,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:44,971 INFO L225 Difference]: With dead ends: 121712 [2025-01-09 03:53:44,971 INFO L226 Difference]: Without dead ends: 121505 [2025-01-09 03:53:45,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:53:45,019 INFO L435 NwaCegarLoop]: 831 mSDtfsCounter, 957 mSDsluCounter, 2699 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 3530 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 03:53:45,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [963 Valid, 3530 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 03:53:45,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121505 states. [2025-01-09 03:53:48,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121505 to 121494. [2025-01-09 03:53:48,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121494 states, 102744 states have (on average 1.622518103246905) internal successors, (166704), 102756 states have internal predecessors, (166704), 18683 states have call successors, (18683), 61 states have call predecessors, (18683), 66 states have return successors, (20883), 18676 states have call predecessors, (20883), 18676 states have call successors, (20883) [2025-01-09 03:53:49,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121494 states to 121494 states and 206270 transitions. [2025-01-09 03:53:49,123 INFO L78 Accepts]: Start accepts. Automaton has 121494 states and 206270 transitions. Word has length 141 [2025-01-09 03:53:49,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:53:49,123 INFO L471 AbstractCegarLoop]: Abstraction has 121494 states and 206270 transitions. [2025-01-09 03:53:49,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2025-01-09 03:53:49,123 INFO L276 IsEmpty]: Start isEmpty. Operand 121494 states and 206270 transitions. [2025-01-09 03:53:49,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-01-09 03:53:49,168 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:53:49,168 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:53:49,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-01-09 03:53:49,168 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:53:49,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:53:49,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1391087947, now seen corresponding path program 1 times [2025-01-09 03:53:49,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:53:49,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985574560] [2025-01-09 03:53:49,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:53:49,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:53:49,186 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 03:53:49,195 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 03:53:49,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:53:49,196 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:53:49,304 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-01-09 03:53:49,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:53:49,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985574560] [2025-01-09 03:53:49,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985574560] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:53:49,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:53:49,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 03:53:49,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271909447] [2025-01-09 03:53:49,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:53:49,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:53:49,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:53:49,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:53:49,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:53:49,306 INFO L87 Difference]: Start difference. First operand 121494 states and 206270 transitions. Second operand has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2025-01-09 03:53:51,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:53:51,770 INFO L93 Difference]: Finished difference Result 122194 states and 207301 transitions. [2025-01-09 03:53:51,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 03:53:51,771 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 142 [2025-01-09 03:53:51,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:53:52,184 INFO L225 Difference]: With dead ends: 122194 [2025-01-09 03:53:52,185 INFO L226 Difference]: Without dead ends: 121522 [2025-01-09 03:53:52,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:53:52,257 INFO L435 NwaCegarLoop]: 614 mSDtfsCounter, 4 mSDsluCounter, 3668 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4282 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:53:52,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4282 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:53:52,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121522 states.