./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash b615ef3e9ec848bbbdbcac9993fc5d609594ef1caaa279a862c4f038e6ec482e --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 19:15:04,034 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 19:15:04,078 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 19:15:04,081 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 19:15:04,081 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 19:15:04,095 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 19:15:04,096 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 19:15:04,096 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 19:15:04,096 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 19:15:04,096 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 19:15:04,096 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 19:15:04,097 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 19:15:04,097 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 19:15:04,097 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 19:15:04,097 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 19:15:04,097 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 19:15:04,097 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 19:15:04,097 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 19:15:04,097 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 19:15:04,097 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 19:15:04,098 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 19:15:04,098 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 19:15:04,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 19:15:04,098 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 19:15:04,098 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 19:15:04,098 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 19:15:04,098 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 19:15:04,098 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 19:15:04,098 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 19:15:04,098 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 19:15:04,098 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 19:15:04,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 19:15:04,099 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 19:15:04,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 19:15:04,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 19:15:04,099 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 19:15:04,099 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 19:15:04,099 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 19:15:04,099 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 19:15:04,099 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 19:15:04,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 19:15:04,099 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 19:15:04,100 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 19:15:04,100 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 19:15:04,100 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 19:15:04,100 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b615ef3e9ec848bbbdbcac9993fc5d609594ef1caaa279a862c4f038e6ec482e [2025-01-09 19:15:04,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 19:15:04,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 19:15:04,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 19:15:04,365 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 19:15:04,365 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 19:15:04,366 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i [2025-01-09 19:15:05,581 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/30bae6952/a35fc1af7692471c849454ea2651b0ea/FLAG15344bf55 [2025-01-09 19:15:05,975 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 19:15:05,975 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i [2025-01-09 19:15:06,003 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/30bae6952/a35fc1af7692471c849454ea2651b0ea/FLAG15344bf55 [2025-01-09 19:15:06,144 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/30bae6952/a35fc1af7692471c849454ea2651b0ea [2025-01-09 19:15:06,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 19:15:06,147 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 19:15:06,148 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 19:15:06,148 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 19:15:06,151 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 19:15:06,151 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 07:15:06" (1/1) ... [2025-01-09 19:15:06,152 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15279668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:15:06, skipping insertion in model container [2025-01-09 19:15:06,152 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 07:15:06" (1/1) ... [2025-01-09 19:15:06,221 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 19:15:06,894 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/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i[208194,208207] [2025-01-09 19:15:06,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 19:15:07,004 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 19:15:07,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5300] [2025-01-09 19:15:07,076 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5307] [2025-01-09 19:15:07,081 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5446] [2025-01-09 19:15:07,082 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5454] [2025-01-09 19:15:07,088 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1,%b0": "=a" (_v): "d" (port)); [5637] [2025-01-09 19:15:07,168 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/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i[208194,208207] [2025-01-09 19:15:07,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 19:15:07,271 INFO L204 MainTranslator]: Completed translation [2025-01-09 19:15:07,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:15:07 WrapperNode [2025-01-09 19:15:07,274 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 19:15:07,275 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 19:15:07,275 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 19:15:07,275 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 19:15:07,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:15:07" (1/1) ... [2025-01-09 19:15:07,318 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:15:07" (1/1) ... [2025-01-09 19:15:07,408 INFO L138 Inliner]: procedures = 152, calls = 711, calls flagged for inlining = 70, calls inlined = 67, statements flattened = 1968 [2025-01-09 19:15:07,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 19:15:07,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 19:15:07,409 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 19:15:07,409 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 19:15:07,416 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:15:07" (1/1) ... [2025-01-09 19:15:07,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:15:07" (1/1) ... [2025-01-09 19:15:07,437 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:15:07" (1/1) ... [2025-01-09 19:15:07,585 INFO L175 MemorySlicer]: Split 327 memory accesses to 10 slices as follows [2, 23, 61, 3, 209, 4, 4, 4, 11, 6]. 64 percent of accesses are in the largest equivalence class. The 39 initializations are split as follows [2, 23, 0, 2, 0, 2, 2, 0, 8, 0]. The 192 writes are split as follows [0, 0, 61, 0, 125, 0, 0, 2, 0, 4]. [2025-01-09 19:15:07,585 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:15:07" (1/1) ... [2025-01-09 19:15:07,585 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:15:07" (1/1) ... [2025-01-09 19:15:07,624 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:15:07" (1/1) ... [2025-01-09 19:15:07,629 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:15:07" (1/1) ... [2025-01-09 19:15:07,636 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:15:07" (1/1) ... [2025-01-09 19:15:07,652 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:15:07" (1/1) ... [2025-01-09 19:15:07,660 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:15:07" (1/1) ... [2025-01-09 19:15:07,677 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 19:15:07,678 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 19:15:07,678 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 19:15:07,678 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 19:15:07,679 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:15:07" (1/1) ... [2025-01-09 19:15:07,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 19:15:07,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 19:15:07,728 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 19:15:07,736 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 19:15:07,761 INFO L130 BoogieDeclarations]: Found specification of procedure atp_probe1 [2025-01-09 19:15:07,762 INFO L138 BoogieDeclarations]: Found implementation of procedure atp_probe1 [2025-01-09 19:15:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2025-01-09 19:15:07,762 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2025-01-09 19:15:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 19:15:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 19:15:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 19:15:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 19:15:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 19:15:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 19:15:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 19:15:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-01-09 19:15:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-01-09 19:15:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2025-01-09 19:15:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure read_block [2025-01-09 19:15:07,762 INFO L138 BoogieDeclarations]: Found implementation of procedure read_block [2025-01-09 19:15:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 19:15:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 19:15:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 19:15:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 19:15:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 19:15:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 19:15:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-01-09 19:15:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-01-09 19:15:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-01-09 19:15:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2025-01-09 19:15:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2025-01-09 19:15:07,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2025-01-09 19:15:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 19:15:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 19:15:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 19:15:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 19:15:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 19:15:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 19:15:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 19:15:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 19:15:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-01-09 19:15:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-01-09 19:15:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2025-01-09 19:15:07,767 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2025-01-09 19:15:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2025-01-09 19:15:07,767 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2025-01-09 19:15:07,767 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2025-01-09 19:15:07,767 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure write_byte_mode0 [2025-01-09 19:15:07,768 INFO L138 BoogieDeclarations]: Found implementation of procedure write_byte_mode0 [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure write_byte_mode1 [2025-01-09 19:15:07,768 INFO L138 BoogieDeclarations]: Found implementation of procedure write_byte_mode1 [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2025-01-09 19:15:07,768 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2025-01-09 19:15:07,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2025-01-09 19:15:07,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2025-01-09 19:15:07,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure tx_timeout [2025-01-09 19:15:07,768 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_timeout [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure net_rx [2025-01-09 19:15:07,768 INFO L138 BoogieDeclarations]: Found implementation of procedure net_rx [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2025-01-09 19:15:07,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg_high [2025-01-09 19:15:07,768 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg_high [2025-01-09 19:15:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2025-01-09 19:15:07,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2025-01-09 19:15:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 19:15:07,769 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 19:15:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2025-01-09 19:15:07,769 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2025-01-09 19:15:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure read_nibble [2025-01-09 19:15:07,769 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nibble [2025-01-09 19:15:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 19:15:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure hardware_init [2025-01-09 19:15:07,769 INFO L138 BoogieDeclarations]: Found implementation of procedure hardware_init [2025-01-09 19:15:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 19:15:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 19:15:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 19:15:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 19:15:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 19:15:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 19:15:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 19:15:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 19:15:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-01-09 19:15:07,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-01-09 19:15:07,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-01-09 19:15:07,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-01-09 19:15:07,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2025-01-09 19:15:07,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2025-01-09 19:15:07,770 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2025-01-09 19:15:07,770 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2025-01-09 19:15:07,770 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2025-01-09 19:15:07,770 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2025-01-09 19:15:07,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 19:15:07,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 19:15:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 19:15:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 19:15:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 19:15:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 19:15:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-01-09 19:15:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-01-09 19:15:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-01-09 19:15:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-01-09 19:15:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2025-01-09 19:15:07,771 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2025-01-09 19:15:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg_byte [2025-01-09 19:15:07,772 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg_byte [2025-01-09 19:15:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2025-01-09 19:15:07,772 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2025-01-09 19:15:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2025-01-09 19:15:07,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2025-01-09 19:15:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 19:15:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure inbyte [2025-01-09 19:15:07,772 INFO L138 BoogieDeclarations]: Found implementation of procedure inbyte [2025-01-09 19:15:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2025-01-09 19:15:07,772 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2025-01-09 19:15:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure trigger_send [2025-01-09 19:15:07,772 INFO L138 BoogieDeclarations]: Found implementation of procedure trigger_send [2025-01-09 19:15:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2025-01-09 19:15:07,772 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2025-01-09 19:15:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2025-01-09 19:15:07,772 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2025-01-09 19:15:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2025-01-09 19:15:07,772 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2025-01-09 19:15:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2025-01-09 19:15:07,772 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2025-01-09 19:15:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2025-01-09 19:15:07,772 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2025-01-09 19:15:07,772 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2025-01-09 19:15:07,773 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2025-01-09 19:15:07,773 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_op [2025-01-09 19:15:07,773 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_op [2025-01-09 19:15:07,773 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2025-01-09 19:15:07,773 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2025-01-09 19:15:07,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 19:15:07,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 19:15:07,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 19:15:07,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 19:15:07,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 19:15:07,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 19:15:07,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 19:15:07,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 19:15:07,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 19:15:07,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-09 19:15:07,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 19:15:07,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 19:15:08,141 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 19:15:08,143 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 19:15:08,616 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2025-01-09 19:15:14,788 INFO L? ?]: Removed 775 outVars from TransFormulas that were not future-live. [2025-01-09 19:15:14,788 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 19:15:14,814 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 19:15:14,817 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 19:15:14,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 07:15:14 BoogieIcfgContainer [2025-01-09 19:15:14,818 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 19:15:14,820 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 19:15:14,820 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 19:15:14,824 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 19:15:14,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 07:15:06" (1/3) ... [2025-01-09 19:15:14,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dde31df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 07:15:14, skipping insertion in model container [2025-01-09 19:15:14,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:15:07" (2/3) ... [2025-01-09 19:15:14,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dde31df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 07:15:14, skipping insertion in model container [2025-01-09 19:15:14,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 07:15:14" (3/3) ... [2025-01-09 19:15:14,826 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i [2025-01-09 19:15:14,837 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 19:15:14,839 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--realtek--atp.ko-entry_point.cil.out.i that has 41 procedures, 924 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 19:15:14,903 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 19:15:14,912 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;@2a2f3ead, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 19:15:14,912 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 19:15:14,919 INFO L276 IsEmpty]: Start isEmpty. Operand has 923 states, 639 states have (on average 1.3708920187793427) internal successors, (876), 654 states have internal predecessors, (876), 243 states have call successors, (243), 40 states have call predecessors, (243), 39 states have return successors, (238), 236 states have call predecessors, (238), 238 states have call successors, (238) [2025-01-09 19:15:14,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2025-01-09 19:15:14,964 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 19:15:14,965 INFO L218 NwaCegarLoop]: trace histogram [40, 40, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 19:15:14,965 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 19:15:14,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 19:15:14,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1528622827, now seen corresponding path program 1 times [2025-01-09 19:15:14,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 19:15:14,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000011323] [2025-01-09 19:15:14,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:15:14,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 19:15:17,188 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 364 statements into 1 equivalence classes. [2025-01-09 19:15:17,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 364 of 364 statements. [2025-01-09 19:15:17,376 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:15:17,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:15:17,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2476 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2471 trivial. 0 not checked. [2025-01-09 19:15:17,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 19:15:17,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000011323] [2025-01-09 19:15:17,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000011323] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 19:15:17,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461595899] [2025-01-09 19:15:17,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:15:17,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 19:15:17,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 19:15:17,767 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 19:15:17,770 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 19:15:19,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 364 statements into 1 equivalence classes. [2025-01-09 19:15:20,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 364 of 364 statements. [2025-01-09 19:15:20,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:15:20,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:15:20,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 2752 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 19:15:20,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 19:15:20,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2476 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2467 trivial. 0 not checked. [2025-01-09 19:15:20,158 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 19:15:20,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461595899] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 19:15:20,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 19:15:20,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 19:15:20,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786906229] [2025-01-09 19:15:20,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 19:15:20,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 19:15:20,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 19:15:20,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 19:15:20,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 19:15:20,188 INFO L87 Difference]: Start difference. First operand has 923 states, 639 states have (on average 1.3708920187793427) internal successors, (876), 654 states have internal predecessors, (876), 243 states have call successors, (243), 40 states have call predecessors, (243), 39 states have return successors, (238), 236 states have call predecessors, (238), 238 states have call successors, (238) Second operand has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2025-01-09 19:15:20,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 19:15:20,317 INFO L93 Difference]: Finished difference Result 1841 states and 2789 transitions. [2025-01-09 19:15:20,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 19:15:20,319 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 364 [2025-01-09 19:15:20,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 19:15:20,344 INFO L225 Difference]: With dead ends: 1841 [2025-01-09 19:15:20,346 INFO L226 Difference]: Without dead ends: 901 [2025-01-09 19:15:20,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 19:15:20,358 INFO L435 NwaCegarLoop]: 1337 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 19:15:20,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 19:15:20,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2025-01-09 19:15:20,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 901. [2025-01-09 19:15:20,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 626 states have (on average 1.3370607028753994) internal successors, (837), 634 states have internal predecessors, (837), 236 states have call successors, (236), 39 states have call predecessors, (236), 38 states have return successors, (235), 233 states have call predecessors, (235), 235 states have call successors, (235) [2025-01-09 19:15:20,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1308 transitions. [2025-01-09 19:15:20,457 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1308 transitions. Word has length 364 [2025-01-09 19:15:20,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 19:15:20,458 INFO L471 AbstractCegarLoop]: Abstraction has 901 states and 1308 transitions. [2025-01-09 19:15:20,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2025-01-09 19:15:20,459 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1308 transitions. [2025-01-09 19:15:20,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2025-01-09 19:15:20,472 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 19:15:20,473 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-01-09 19:15:20,484 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 19:15:20,677 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 19:15:20,677 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 19:15:20,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 19:15:20,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1064948970, now seen corresponding path program 1 times [2025-01-09 19:15:20,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 19:15:20,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173191778] [2025-01-09 19:15:20,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:15:20,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 19:15:22,433 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 324 statements into 1 equivalence classes. [2025-01-09 19:15:22,480 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 324 of 324 statements. [2025-01-09 19:15:22,480 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:15:22,480 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:15:22,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1720 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2025-01-09 19:15:22,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 19:15:22,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173191778] [2025-01-09 19:15:22,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173191778] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 19:15:22,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 19:15:23,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 19:15:23,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719241362] [2025-01-09 19:15:23,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 19:15:23,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 19:15:23,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 19:15:23,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 19:15:23,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 19:15:23,004 INFO L87 Difference]: Start difference. First operand 901 states and 1308 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2025-01-09 19:15:23,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 19:15:23,418 INFO L93 Difference]: Finished difference Result 2688 states and 3902 transitions. [2025-01-09 19:15:23,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 19:15:23,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 324 [2025-01-09 19:15:23,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 19:15:23,434 INFO L225 Difference]: With dead ends: 2688 [2025-01-09 19:15:23,435 INFO L226 Difference]: Without dead ends: 1797 [2025-01-09 19:15:23,448 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-01-09 19:15:23,448 INFO L435 NwaCegarLoop]: 1680 mSDtfsCounter, 1290 mSDsluCounter, 4635 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1291 SdHoareTripleChecker+Valid, 6315 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 19:15:23,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1291 Valid, 6315 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 19:15:23,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2025-01-09 19:15:23,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1792. [2025-01-09 19:15:23,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1792 states, 1245 states have (on average 1.3349397590361445) internal successors, (1662), 1261 states have internal predecessors, (1662), 469 states have call successors, (469), 78 states have call predecessors, (469), 77 states have return successors, (468), 464 states have call predecessors, (468), 468 states have call successors, (468) [2025-01-09 19:15:23,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2599 transitions. [2025-01-09 19:15:23,549 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2599 transitions. Word has length 324 [2025-01-09 19:15:23,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 19:15:23,549 INFO L471 AbstractCegarLoop]: Abstraction has 1792 states and 2599 transitions. [2025-01-09 19:15:23,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2025-01-09 19:15:23,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2599 transitions. [2025-01-09 19:15:23,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2025-01-09 19:15:23,562 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 19:15:23,562 INFO L218 NwaCegarLoop]: trace histogram [40, 40, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 19:15:23,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 19:15:23,562 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 19:15:23,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 19:15:23,563 INFO L85 PathProgramCache]: Analyzing trace with hash 600035532, now seen corresponding path program 1 times [2025-01-09 19:15:23,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 19:15:23,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057105579] [2025-01-09 19:15:23,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:15:23,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 19:15:25,194 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 362 statements into 1 equivalence classes. [2025-01-09 19:15:25,240 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 362 of 362 statements. [2025-01-09 19:15:25,240 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:15:25,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:15:25,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2476 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2476 trivial. 0 not checked. [2025-01-09 19:15:25,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 19:15:25,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057105579] [2025-01-09 19:15:25,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057105579] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 19:15:25,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 19:15:25,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 19:15:25,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840613646] [2025-01-09 19:15:25,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 19:15:25,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 19:15:25,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 19:15:25,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 19:15:25,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 19:15:25,731 INFO L87 Difference]: Start difference. First operand 1792 states and 2599 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2025-01-09 19:15:26,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 19:15:26,122 INFO L93 Difference]: Finished difference Result 5364 states and 7778 transitions. [2025-01-09 19:15:26,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 19:15:26,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 362 [2025-01-09 19:15:26,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 19:15:26,143 INFO L225 Difference]: With dead ends: 5364 [2025-01-09 19:15:26,143 INFO L226 Difference]: Without dead ends: 3582 [2025-01-09 19:15:26,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-01-09 19:15:26,152 INFO L435 NwaCegarLoop]: 1729 mSDtfsCounter, 1289 mSDsluCounter, 4734 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1290 SdHoareTripleChecker+Valid, 6463 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 19:15:26,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1290 Valid, 6463 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 19:15:26,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3582 states. [2025-01-09 19:15:26,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3582 to 3561. [2025-01-09 19:15:26,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3561 states, 2471 states have (on average 1.3342776203966005) internal successors, (3297), 2510 states have internal predecessors, (3297), 934 states have call successors, (934), 156 states have call predecessors, (934), 155 states have return successors, (933), 918 states have call predecessors, (933), 933 states have call successors, (933) [2025-01-09 19:15:26,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3561 states to 3561 states and 5164 transitions. [2025-01-09 19:15:26,280 INFO L78 Accepts]: Start accepts. Automaton has 3561 states and 5164 transitions. Word has length 362 [2025-01-09 19:15:26,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 19:15:26,280 INFO L471 AbstractCegarLoop]: Abstraction has 3561 states and 5164 transitions. [2025-01-09 19:15:26,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2025-01-09 19:15:26,281 INFO L276 IsEmpty]: Start isEmpty. Operand 3561 states and 5164 transitions. [2025-01-09 19:15:26,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2025-01-09 19:15:26,296 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 19:15:26,296 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:15:26,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 19:15:26,297 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 19:15:26,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 19:15:26,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1273095033, now seen corresponding path program 1 times [2025-01-09 19:15:26,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 19:15:26,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558233291] [2025-01-09 19:15:26,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:15:26,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 19:15:27,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 326 statements into 1 equivalence classes. [2025-01-09 19:15:27,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 326 of 326 statements. [2025-01-09 19:15:27,936 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:15:27,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:15:28,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1720 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2025-01-09 19:15:28,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 19:15:28,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558233291] [2025-01-09 19:15:28,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558233291] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 19:15:28,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 19:15:28,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 19:15:28,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224493818] [2025-01-09 19:15:28,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 19:15:28,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 19:15:28,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 19:15:28,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 19:15:28,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 19:15:28,350 INFO L87 Difference]: Start difference. First operand 3561 states and 5164 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2025-01-09 19:15:28,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 19:15:28,855 INFO L93 Difference]: Finished difference Result 10691 states and 15498 transitions. [2025-01-09 19:15:28,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 19:15:28,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 326 [2025-01-09 19:15:28,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 19:15:28,915 INFO L225 Difference]: With dead ends: 10691 [2025-01-09 19:15:28,915 INFO L226 Difference]: Without dead ends: 7140 [2025-01-09 19:15:28,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-01-09 19:15:28,937 INFO L435 NwaCegarLoop]: 1305 mSDtfsCounter, 1292 mSDsluCounter, 3886 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 5191 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 19:15:28,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1293 Valid, 5191 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 19:15:28,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7140 states. [2025-01-09 19:15:29,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7140 to 7117. [2025-01-09 19:15:29,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7117 states, 4941 states have (on average 1.333130945152803) internal successors, (6587), 5017 states have internal predecessors, (6587), 1863 states have call successors, (1863), 313 states have call predecessors, (1863), 312 states have return successors, (1862), 1834 states have call predecessors, (1862), 1862 states have call successors, (1862) [2025-01-09 19:15:29,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7117 states to 7117 states and 10312 transitions. [2025-01-09 19:15:29,190 INFO L78 Accepts]: Start accepts. Automaton has 7117 states and 10312 transitions. Word has length 326 [2025-01-09 19:15:29,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 19:15:29,192 INFO L471 AbstractCegarLoop]: Abstraction has 7117 states and 10312 transitions. [2025-01-09 19:15:29,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2025-01-09 19:15:29,192 INFO L276 IsEmpty]: Start isEmpty. Operand 7117 states and 10312 transitions. [2025-01-09 19:15:29,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2025-01-09 19:15:29,210 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 19:15:29,210 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-01-09 19:15:29,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 19:15:29,211 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 19:15:29,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 19:15:29,211 INFO L85 PathProgramCache]: Analyzing trace with hash -189699494, now seen corresponding path program 1 times [2025-01-09 19:15:29,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 19:15:29,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59750071] [2025-01-09 19:15:29,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:15:29,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 19:15:30,805 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 325 statements into 1 equivalence classes. [2025-01-09 19:15:30,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 325 of 325 statements. [2025-01-09 19:15:30,836 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:15:30,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:15:31,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1720 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2025-01-09 19:15:31,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 19:15:31,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59750071] [2025-01-09 19:15:31,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59750071] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 19:15:31,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 19:15:31,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 19:15:31,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499182912] [2025-01-09 19:15:31,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 19:15:31,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 19:15:31,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 19:15:31,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 19:15:31,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 19:15:31,164 INFO L87 Difference]: Start difference. First operand 7117 states and 10312 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2025-01-09 19:15:31,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 19:15:31,718 INFO L93 Difference]: Finished difference Result 21143 states and 30592 transitions. [2025-01-09 19:15:31,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 19:15:31,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 325 [2025-01-09 19:15:31,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 19:15:31,830 INFO L225 Difference]: With dead ends: 21143 [2025-01-09 19:15:31,830 INFO L226 Difference]: Without dead ends: 14036 [2025-01-09 19:15:31,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-01-09 19:15:31,868 INFO L435 NwaCegarLoop]: 1306 mSDtfsCounter, 1291 mSDsluCounter, 3888 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 5194 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 19:15:31,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1292 Valid, 5194 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 19:15:31,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14036 states. [2025-01-09 19:15:32,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14036 to 13994. [2025-01-09 19:15:32,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13994 states, 9722 states have (on average 1.3302818350133718) internal successors, (12933), 9865 states have internal predecessors, (12933), 3647 states have call successors, (3647), 625 states have call predecessors, (3647), 624 states have return successors, (3646), 3596 states have call predecessors, (3646), 3646 states have call successors, (3646) [2025-01-09 19:15:32,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13994 states to 13994 states and 20226 transitions. [2025-01-09 19:15:32,404 INFO L78 Accepts]: Start accepts. Automaton has 13994 states and 20226 transitions. Word has length 325 [2025-01-09 19:15:32,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 19:15:32,405 INFO L471 AbstractCegarLoop]: Abstraction has 13994 states and 20226 transitions. [2025-01-09 19:15:32,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2025-01-09 19:15:32,409 INFO L276 IsEmpty]: Start isEmpty. Operand 13994 states and 20226 transitions. [2025-01-09 19:15:32,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2025-01-09 19:15:32,432 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 19:15:32,432 INFO L218 NwaCegarLoop]: trace histogram [40, 40, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 19:15:32,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 19:15:32,433 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 19:15:32,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 19:15:32,434 INFO L85 PathProgramCache]: Analyzing trace with hash 2043533653, now seen corresponding path program 1 times [2025-01-09 19:15:32,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 19:15:32,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806131795] [2025-01-09 19:15:32,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:15:32,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 19:15:34,281 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 374 statements into 1 equivalence classes. [2025-01-09 19:15:34,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 374 of 374 statements. [2025-01-09 19:15:34,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:15:34,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:15:35,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2481 trivial. 0 not checked. [2025-01-09 19:15:35,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 19:15:35,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806131795] [2025-01-09 19:15:35,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806131795] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 19:15:35,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483501300] [2025-01-09 19:15:35,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:15:35,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 19:15:35,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 19:15:35,106 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 19:15:35,107 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 19:15:37,176 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 374 statements into 1 equivalence classes. [2025-01-09 19:15:37,434 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 374 of 374 statements. [2025-01-09 19:15:37,434 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:15:37,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:15:37,444 INFO L256 TraceCheckSpWp]: Trace formula consists of 2809 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 19:15:37,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 19:15:37,560 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2483 trivial. 0 not checked. [2025-01-09 19:15:37,561 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 19:15:37,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483501300] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 19:15:37,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 19:15:37,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2025-01-09 19:15:37,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840370679] [2025-01-09 19:15:37,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 19:15:37,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 19:15:37,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 19:15:37,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 19:15:37,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 19:15:37,563 INFO L87 Difference]: Start difference. First operand 13994 states and 20226 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2025-01-09 19:15:37,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 19:15:37,784 INFO L93 Difference]: Finished difference Result 14012 states and 20258 transitions. [2025-01-09 19:15:37,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 19:15:37,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 374 [2025-01-09 19:15:37,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 19:15:37,850 INFO L225 Difference]: With dead ends: 14012 [2025-01-09 19:15:37,850 INFO L226 Difference]: Without dead ends: 14009 [2025-01-09 19:15:37,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 19:15:37,864 INFO L435 NwaCegarLoop]: 1307 mSDtfsCounter, 0 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2609 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 19:15:37,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2609 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 19:15:37,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14009 states. [2025-01-09 19:15:38,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14009 to 14009. [2025-01-09 19:15:38,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14009 states, 9737 states have (on average 1.32977303070761) internal successors, (12948), 9880 states have internal predecessors, (12948), 3647 states have call successors, (3647), 625 states have call predecessors, (3647), 624 states have return successors, (3646), 3596 states have call predecessors, (3646), 3646 states have call successors, (3646) [2025-01-09 19:15:38,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14009 states to 14009 states and 20241 transitions. [2025-01-09 19:15:38,304 INFO L78 Accepts]: Start accepts. Automaton has 14009 states and 20241 transitions. Word has length 374 [2025-01-09 19:15:38,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 19:15:38,306 INFO L471 AbstractCegarLoop]: Abstraction has 14009 states and 20241 transitions. [2025-01-09 19:15:38,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2025-01-09 19:15:38,307 INFO L276 IsEmpty]: Start isEmpty. Operand 14009 states and 20241 transitions. [2025-01-09 19:15:38,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2025-01-09 19:15:38,328 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 19:15:38,328 INFO L218 NwaCegarLoop]: trace histogram [40, 40, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 19:15:38,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 19:15:38,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 19:15:38,533 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 19:15:38,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 19:15:38,534 INFO L85 PathProgramCache]: Analyzing trace with hash 542324282, now seen corresponding path program 1 times [2025-01-09 19:15:38,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 19:15:38,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710256172] [2025-01-09 19:15:38,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:15:38,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 19:15:40,387 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 376 statements into 1 equivalence classes. [2025-01-09 19:15:40,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 376 of 376 statements. [2025-01-09 19:15:40,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:15:40,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:15:41,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2481 trivial. 0 not checked. [2025-01-09 19:15:41,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 19:15:41,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710256172] [2025-01-09 19:15:41,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710256172] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 19:15:41,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078815298] [2025-01-09 19:15:41,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:15:41,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 19:15:41,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 19:15:41,036 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 19:15:41,037 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 19:15:43,084 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 376 statements into 1 equivalence classes. [2025-01-09 19:15:43,327 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 376 of 376 statements. [2025-01-09 19:15:43,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:15:43,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:15:43,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 2814 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 19:15:43,344 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 19:15:43,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2483 trivial. 0 not checked. [2025-01-09 19:15:43,428 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 19:15:43,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078815298] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 19:15:43,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 19:15:43,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2025-01-09 19:15:43,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094179957] [2025-01-09 19:15:43,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 19:15:43,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 19:15:43,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 19:15:43,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 19:15:43,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 19:15:43,430 INFO L87 Difference]: Start difference. First operand 14009 states and 20241 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2025-01-09 19:15:43,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 19:15:43,743 INFO L93 Difference]: Finished difference Result 28023 states and 40561 transitions. [2025-01-09 19:15:43,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 19:15:43,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) Word has length 376 [2025-01-09 19:15:43,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 19:15:43,804 INFO L225 Difference]: With dead ends: 28023 [2025-01-09 19:15:43,804 INFO L226 Difference]: Without dead ends: 14024 [2025-01-09 19:15:43,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 19:15:43,851 INFO L435 NwaCegarLoop]: 1307 mSDtfsCounter, 0 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2610 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 19:15:43,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2610 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 19:15:43,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14024 states. [2025-01-09 19:15:44,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14024 to 14024. [2025-01-09 19:15:44,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14024 states, 9752 states have (on average 1.3292657916324857) internal successors, (12963), 9895 states have internal predecessors, (12963), 3647 states have call successors, (3647), 625 states have call predecessors, (3647), 624 states have return successors, (3646), 3596 states have call predecessors, (3646), 3646 states have call successors, (3646) [2025-01-09 19:15:44,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14024 states to 14024 states and 20256 transitions. [2025-01-09 19:15:44,218 INFO L78 Accepts]: Start accepts. Automaton has 14024 states and 20256 transitions. Word has length 376 [2025-01-09 19:15:44,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 19:15:44,220 INFO L471 AbstractCegarLoop]: Abstraction has 14024 states and 20256 transitions. [2025-01-09 19:15:44,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 1 states have call predecessors, (43), 1 states have call successors, (43) [2025-01-09 19:15:44,220 INFO L276 IsEmpty]: Start isEmpty. Operand 14024 states and 20256 transitions. [2025-01-09 19:15:44,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2025-01-09 19:15:44,237 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 19:15:44,237 INFO L218 NwaCegarLoop]: trace histogram [40, 40, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 19:15:44,323 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 19:15:44,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 19:15:44,513 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 19:15:44,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 19:15:44,517 INFO L85 PathProgramCache]: Analyzing trace with hash 890731929, now seen corresponding path program 1 times [2025-01-09 19:15:44,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 19:15:44,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670384310] [2025-01-09 19:15:44,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:15:44,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 19:15:46,384 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 377 statements into 1 equivalence classes. [2025-01-09 19:15:46,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 377 of 377 statements. [2025-01-09 19:15:46,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:15:46,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:15:46,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2481 trivial. 0 not checked. [2025-01-09 19:15:46,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 19:15:46,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670384310] [2025-01-09 19:15:46,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670384310] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 19:15:46,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046155621] [2025-01-09 19:15:46,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:15:46,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 19:15:46,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 19:15:46,985 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 19:15:46,987 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 19:15:49,167 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 377 statements into 1 equivalence classes. [2025-01-09 19:15:49,379 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 377 of 377 statements. [2025-01-09 19:15:49,379 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:15:49,380 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:15:49,388 INFO L256 TraceCheckSpWp]: Trace formula consists of 2815 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 19:15:49,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 19:15:49,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 1268 proven. 0 refuted. 0 times theorem prover too weak. 1215 trivial. 0 not checked. [2025-01-09 19:15:49,460 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 19:15:49,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046155621] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 19:15:49,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 19:15:49,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2025-01-09 19:15:49,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376204742] [2025-01-09 19:15:49,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 19:15:49,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 19:15:49,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 19:15:49,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 19:15:49,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 19:15:49,462 INFO L87 Difference]: Start difference. First operand 14024 states and 20256 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2025-01-09 19:15:49,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 19:15:49,743 INFO L93 Difference]: Finished difference Result 28053 states and 40561 transitions. [2025-01-09 19:15:49,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 19:15:49,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 377 [2025-01-09 19:15:49,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 19:15:49,808 INFO L225 Difference]: With dead ends: 28053 [2025-01-09 19:15:49,808 INFO L226 Difference]: Without dead ends: 14039 [2025-01-09 19:15:49,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 19:15:49,856 INFO L435 NwaCegarLoop]: 1307 mSDtfsCounter, 0 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2608 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 19:15:49,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2608 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 19:15:49,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14039 states. [2025-01-09 19:15:50,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14039 to 14039. [2025-01-09 19:15:50,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14039 states, 9767 states have (on average 1.3287601105764308) internal successors, (12978), 9910 states have internal predecessors, (12978), 3647 states have call successors, (3647), 625 states have call predecessors, (3647), 624 states have return successors, (3646), 3596 states have call predecessors, (3646), 3646 states have call successors, (3646) [2025-01-09 19:15:50,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14039 states to 14039 states and 20271 transitions. [2025-01-09 19:15:50,320 INFO L78 Accepts]: Start accepts. Automaton has 14039 states and 20271 transitions. Word has length 377 [2025-01-09 19:15:50,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 19:15:50,321 INFO L471 AbstractCegarLoop]: Abstraction has 14039 states and 20271 transitions. [2025-01-09 19:15:50,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2025-01-09 19:15:50,321 INFO L276 IsEmpty]: Start isEmpty. Operand 14039 states and 20271 transitions. [2025-01-09 19:15:50,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2025-01-09 19:15:50,339 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 19:15:50,340 INFO L218 NwaCegarLoop]: trace histogram [40, 40, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 19:15:50,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-09 19:15:50,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-01-09 19:15:50,545 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 19:15:50,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 19:15:50,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1829052073, now seen corresponding path program 1 times [2025-01-09 19:15:50,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 19:15:50,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118974351] [2025-01-09 19:15:50,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:15:50,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 19:15:52,211 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 378 statements into 1 equivalence classes. [2025-01-09 19:15:52,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 378 of 378 statements. [2025-01-09 19:15:52,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:15:52,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:15:52,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2481 trivial. 0 not checked. [2025-01-09 19:15:52,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 19:15:52,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118974351] [2025-01-09 19:15:52,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118974351] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 19:15:52,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765692533] [2025-01-09 19:15:52,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:15:52,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 19:15:52,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 19:15:52,784 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 19:15:52,786 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 19:15:55,298 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 378 statements into 1 equivalence classes. [2025-01-09 19:15:55,545 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 378 of 378 statements. [2025-01-09 19:15:55,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:15:55,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:15:55,558 INFO L256 TraceCheckSpWp]: Trace formula consists of 2816 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 19:15:55,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 19:15:55,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 1035 proven. 0 refuted. 0 times theorem prover too weak. 1448 trivial. 0 not checked. [2025-01-09 19:15:55,672 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 19:15:55,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765692533] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 19:15:55,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 19:15:55,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2025-01-09 19:15:55,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429832314] [2025-01-09 19:15:55,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 19:15:55,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 19:15:55,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 19:15:55,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 19:15:55,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 19:15:55,674 INFO L87 Difference]: Start difference. First operand 14039 states and 20271 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2025-01-09 19:15:56,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 19:15:56,046 INFO L93 Difference]: Finished difference Result 28083 states and 40591 transitions. [2025-01-09 19:15:56,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 19:15:56,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 378 [2025-01-09 19:15:56,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 19:15:56,135 INFO L225 Difference]: With dead ends: 28083 [2025-01-09 19:15:56,135 INFO L226 Difference]: Without dead ends: 14054 [2025-01-09 19:15:56,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 19:15:56,204 INFO L435 NwaCegarLoop]: 1307 mSDtfsCounter, 0 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2608 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 19:15:56,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2608 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 19:15:56,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14054 states. [2025-01-09 19:15:56,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14054 to 14054. [2025-01-09 19:15:56,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14054 states, 9782 states have (on average 1.3282559803721121) internal successors, (12993), 9925 states have internal predecessors, (12993), 3647 states have call successors, (3647), 625 states have call predecessors, (3647), 624 states have return successors, (3646), 3596 states have call predecessors, (3646), 3646 states have call successors, (3646) [2025-01-09 19:15:56,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14054 states to 14054 states and 20286 transitions. [2025-01-09 19:15:56,710 INFO L78 Accepts]: Start accepts. Automaton has 14054 states and 20286 transitions. Word has length 378 [2025-01-09 19:15:56,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 19:15:56,711 INFO L471 AbstractCegarLoop]: Abstraction has 14054 states and 20286 transitions. [2025-01-09 19:15:56,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2025-01-09 19:15:56,711 INFO L276 IsEmpty]: Start isEmpty. Operand 14054 states and 20286 transitions. [2025-01-09 19:15:56,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2025-01-09 19:15:56,726 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 19:15:56,727 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 19:15:56,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-09 19:15:56,927 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 19:15:56,928 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 19:15:56,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 19:15:56,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1255006684, now seen corresponding path program 1 times [2025-01-09 19:15:56,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 19:15:56,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963556601] [2025-01-09 19:15:56,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:15:56,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 19:15:58,568 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 339 statements into 1 equivalence classes. [2025-01-09 19:15:58,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 339 of 339 statements. [2025-01-09 19:15:58,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:15:58,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:15:59,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1725 trivial. 0 not checked. [2025-01-09 19:15:59,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 19:15:59,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963556601] [2025-01-09 19:15:59,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963556601] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 19:15:59,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040754070] [2025-01-09 19:15:59,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:15:59,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 19:15:59,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 19:15:59,430 INFO L229 MonitoredProcess]: Starting monitored process 7 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 19:15:59,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-09 19:16:01,828 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 339 statements into 1 equivalence classes. [2025-01-09 19:16:02,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 339 of 339 statements. [2025-01-09 19:16:02,060 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:16:02,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:16:02,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 2689 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 19:16:02,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 19:16:02,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2025-01-09 19:16:02,720 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 19:16:02,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040754070] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 19:16:02,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 19:16:02,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2025-01-09 19:16:02,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287050808] [2025-01-09 19:16:02,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 19:16:02,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 19:16:02,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 19:16:02,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 19:16:02,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-01-09 19:16:02,725 INFO L87 Difference]: Start difference. First operand 14054 states and 20286 transitions. Second operand has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2025-01-09 19:16:04,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 19:16:04,064 INFO L93 Difference]: Finished difference Result 35184 states and 50752 transitions. [2025-01-09 19:16:04,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-09 19:16:04,064 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) Word has length 339 [2025-01-09 19:16:04,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 19:16:04,273 INFO L225 Difference]: With dead ends: 35184 [2025-01-09 19:16:04,273 INFO L226 Difference]: Without dead ends: 21140 [2025-01-09 19:16:04,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2025-01-09 19:16:04,309 INFO L435 NwaCegarLoop]: 1368 mSDtfsCounter, 1321 mSDsluCounter, 6758 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 8126 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 19:16:04,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 8126 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 19:16:04,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21140 states. [2025-01-09 19:16:04,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21140 to 20991. [2025-01-09 19:16:04,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20991 states, 14623 states have (on average 1.3288654858784108) internal successors, (19432), 14845 states have internal predecessors, (19432), 5427 states have call successors, (5427), 933 states have call predecessors, (5427), 940 states have return successors, (5446), 5350 states have call predecessors, (5446), 5426 states have call successors, (5446) [2025-01-09 19:16:04,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20991 states to 20991 states and 30305 transitions. [2025-01-09 19:16:04,886 INFO L78 Accepts]: Start accepts. Automaton has 20991 states and 30305 transitions. Word has length 339 [2025-01-09 19:16:04,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 19:16:04,886 INFO L471 AbstractCegarLoop]: Abstraction has 20991 states and 30305 transitions. [2025-01-09 19:16:04,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.285714285714286) internal successors, (107), 5 states have internal predecessors, (107), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2025-01-09 19:16:04,886 INFO L276 IsEmpty]: Start isEmpty. Operand 20991 states and 30305 transitions. [2025-01-09 19:16:04,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2025-01-09 19:16:04,913 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 19:16:04,913 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 19:16:04,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-09 19:16:05,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-01-09 19:16:05,114 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 19:16:05,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 19:16:05,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1485998930, now seen corresponding path program 1 times [2025-01-09 19:16:05,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 19:16:05,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485473267] [2025-01-09 19:16:05,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:16:05,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 19:16:06,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 340 statements into 1 equivalence classes. [2025-01-09 19:16:06,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 340 of 340 statements. [2025-01-09 19:16:06,734 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:16:06,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:16:07,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1726 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2025-01-09 19:16:07,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 19:16:07,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485473267] [2025-01-09 19:16:07,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485473267] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 19:16:07,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991518715] [2025-01-09 19:16:07,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:16:07,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 19:16:07,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 19:16:07,475 INFO L229 MonitoredProcess]: Starting monitored process 8 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 19:16:07,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-09 19:16:10,125 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 340 statements into 1 equivalence classes. [2025-01-09 19:16:10,379 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 340 of 340 statements. [2025-01-09 19:16:10,379 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:16:10,379 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:16:10,390 INFO L256 TraceCheckSpWp]: Trace formula consists of 2691 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 19:16:10,396 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 19:16:11,062 INFO L134 CoverageAnalysis]: Checked inductivity of 1726 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2025-01-09 19:16:11,062 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 19:16:11,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991518715] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 19:16:11,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 19:16:11,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2025-01-09 19:16:11,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305616878] [2025-01-09 19:16:11,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 19:16:11,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 19:16:11,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 19:16:11,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 19:16:11,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2025-01-09 19:16:11,065 INFO L87 Difference]: Start difference. First operand 20991 states and 30305 transitions. Second operand has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2025-01-09 19:16:12,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 19:16:12,726 INFO L93 Difference]: Finished difference Result 49111 states and 70836 transitions. [2025-01-09 19:16:12,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-09 19:16:12,727 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) Word has length 340 [2025-01-09 19:16:12,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 19:16:12,930 INFO L225 Difference]: With dead ends: 49111 [2025-01-09 19:16:12,931 INFO L226 Difference]: Without dead ends: 28130 [2025-01-09 19:16:13,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2025-01-09 19:16:13,039 INFO L435 NwaCegarLoop]: 1759 mSDtfsCounter, 1321 mSDsluCounter, 8308 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 10067 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 19:16:13,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 10067 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 19:16:13,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28130 states. [2025-01-09 19:16:13,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28130 to 27960. [2025-01-09 19:16:13,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27960 states, 19484 states have (on average 1.3288339150071853) internal successors, (25891), 19801 states have internal predecessors, (25891), 7207 states have call successors, (7207), 1241 states have call predecessors, (7207), 1268 states have return successors, (7258), 7100 states have call predecessors, (7258), 7206 states have call successors, (7258) [2025-01-09 19:16:13,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27960 states to 27960 states and 40356 transitions. [2025-01-09 19:16:14,023 INFO L78 Accepts]: Start accepts. Automaton has 27960 states and 40356 transitions. Word has length 340 [2025-01-09 19:16:14,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 19:16:14,025 INFO L471 AbstractCegarLoop]: Abstraction has 27960 states and 40356 transitions. [2025-01-09 19:16:14,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.428571428571429) internal successors, (108), 5 states have internal predecessors, (108), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2025-01-09 19:16:14,025 INFO L276 IsEmpty]: Start isEmpty. Operand 27960 states and 40356 transitions. [2025-01-09 19:16:14,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2025-01-09 19:16:14,065 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 19:16:14,065 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 19:16:14,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-09 19:16:14,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 19:16:14,270 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 19:16:14,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 19:16:14,271 INFO L85 PathProgramCache]: Analyzing trace with hash 640497955, now seen corresponding path program 1 times [2025-01-09 19:16:14,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 19:16:14,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243551679] [2025-01-09 19:16:14,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:16:14,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 19:16:15,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 341 statements into 1 equivalence classes. [2025-01-09 19:16:15,938 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 341 of 341 statements. [2025-01-09 19:16:15,938 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:16:15,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:16:16,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1726 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2025-01-09 19:16:16,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 19:16:16,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243551679] [2025-01-09 19:16:16,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243551679] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 19:16:16,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158980644] [2025-01-09 19:16:16,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:16:16,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 19:16:16,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 19:16:16,517 INFO L229 MonitoredProcess]: Starting monitored process 9 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 19:16:16,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-09 19:16:18,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 341 statements into 1 equivalence classes. [2025-01-09 19:16:19,164 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 341 of 341 statements. [2025-01-09 19:16:19,164 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:16:19,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:16:19,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 2693 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 19:16:19,182 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 19:16:19,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1726 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2025-01-09 19:16:19,798 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 19:16:19,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158980644] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 19:16:19,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 19:16:19,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2025-01-09 19:16:19,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214061318] [2025-01-09 19:16:19,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 19:16:19,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 19:16:19,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 19:16:19,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 19:16:19,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2025-01-09 19:16:19,801 INFO L87 Difference]: Start difference. First operand 27960 states and 40356 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2025-01-09 19:16:21,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 19:16:21,299 INFO L93 Difference]: Finished difference Result 63038 states and 90920 transitions. [2025-01-09 19:16:21,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-09 19:16:21,299 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) Word has length 341 [2025-01-09 19:16:21,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 19:16:21,519 INFO L225 Difference]: With dead ends: 63038 [2025-01-09 19:16:21,519 INFO L226 Difference]: Without dead ends: 35088 [2025-01-09 19:16:21,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2025-01-09 19:16:21,643 INFO L435 NwaCegarLoop]: 1759 mSDtfsCounter, 1321 mSDsluCounter, 8308 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 10067 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 19:16:21,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 10067 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 19:16:21,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35088 states. [2025-01-09 19:16:22,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35088 to 27982. [2025-01-09 19:16:22,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27982 states, 19500 states have (on average 1.3285641025641026) internal successors, (25907), 19819 states have internal predecessors, (25907), 7207 states have call successors, (7207), 1241 states have call predecessors, (7207), 1274 states have return successors, (7267), 7104 states have call predecessors, (7267), 7206 states have call successors, (7267) [2025-01-09 19:16:22,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27982 states to 27982 states and 40381 transitions. [2025-01-09 19:16:22,708 INFO L78 Accepts]: Start accepts. Automaton has 27982 states and 40381 transitions. Word has length 341 [2025-01-09 19:16:22,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 19:16:22,709 INFO L471 AbstractCegarLoop]: Abstraction has 27982 states and 40381 transitions. [2025-01-09 19:16:22,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 5 states have internal predecessors, (109), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2025-01-09 19:16:22,710 INFO L276 IsEmpty]: Start isEmpty. Operand 27982 states and 40381 transitions. [2025-01-09 19:16:22,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2025-01-09 19:16:22,741 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 19:16:22,741 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 19:16:22,755 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-09 19:16:22,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 19:16:22,943 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 19:16:22,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 19:16:22,943 INFO L85 PathProgramCache]: Analyzing trace with hash -959250347, now seen corresponding path program 1 times [2025-01-09 19:16:22,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 19:16:22,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975006502] [2025-01-09 19:16:22,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:16:22,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 19:16:24,572 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 342 statements into 1 equivalence classes. [2025-01-09 19:16:24,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 342 of 342 statements. [2025-01-09 19:16:24,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 19:16:24,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 19:16:25,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1726 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1720 trivial. 0 not checked. [2025-01-09 19:16:25,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 19:16:25,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975006502] [2025-01-09 19:16:25,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975006502] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 19:16:25,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060324537] [2025-01-09 19:16:25,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 19:16:25,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 19:16:25,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 19:16:25,192 INFO L229 MonitoredProcess]: Starting monitored process 10 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 19:16:25,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process