./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 410663f06ff647e412b04b4e33dc5a0aa773139e9be33f59003b35b6e81927a8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 08:09:28,937 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 08:09:28,995 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-03-17 08:09:29,001 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 08:09:29,003 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 08:09:29,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 08:09:29,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 08:09:29,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 08:09:29,023 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 08:09:29,023 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 08:09:29,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 08:09:29,024 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 08:09:29,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 08:09:29,024 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 08:09:29,024 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 08:09:29,025 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 08:09:29,025 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 08:09:29,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 08:09:29,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 08:09:29,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 08:09:29,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 08:09:29,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 08:09:29,025 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 08:09:29,025 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 08:09:29,026 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 08:09:29,026 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 08:09:29,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 08:09:29,026 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 08:09:29,026 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 08:09:29,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 08:09:29,026 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 08:09:29,027 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 08:09:29,027 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 08:09:29,027 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 08:09:29,027 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 08:09:29,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 08:09:29,027 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 08:09:29,027 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 08:09:29,027 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 08:09:29,027 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 08:09:29,027 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/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 -> 410663f06ff647e412b04b4e33dc5a0aa773139e9be33f59003b35b6e81927a8 [2025-03-17 08:09:29,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 08:09:29,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 08:09:29,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 08:09:29,298 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 08:09:29,298 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 08:09:29,300 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2025-03-17 08:09:30,590 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7a290ea3/7d5504e1df1647bba6bde8d77ef6b22b/FLAG18847ed28 [2025-03-17 08:09:30,956 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 08:09:30,958 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2025-03-17 08:09:30,987 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7a290ea3/7d5504e1df1647bba6bde8d77ef6b22b/FLAG18847ed28 [2025-03-17 08:09:31,003 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7a290ea3/7d5504e1df1647bba6bde8d77ef6b22b [2025-03-17 08:09:31,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 08:09:31,006 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 08:09:31,007 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 08:09:31,008 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 08:09:31,010 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 08:09:31,011 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 08:09:31" (1/1) ... [2025-03-17 08:09:31,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79600425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:09:31, skipping insertion in model container [2025-03-17 08:09:31,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 08:09:31" (1/1) ... [2025-03-17 08:09:31,074 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 08:09:31,847 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i[108133,108146] [2025-03-17 08:09:31,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 08:09:31,968 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 08:09:32,036 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)); [2808] [2025-03-17 08:09:32,039 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 %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [2815-2816] [2025-03-17 08:09:32,111 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i[108133,108146] [2025-03-17 08:09:32,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 08:09:32,176 INFO L204 MainTranslator]: Completed translation [2025-03-17 08:09:32,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:09:32 WrapperNode [2025-03-17 08:09:32,177 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 08:09:32,178 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 08:09:32,178 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 08:09:32,178 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 08:09:32,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:09:32" (1/1) ... [2025-03-17 08:09:32,218 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:09:32" (1/1) ... [2025-03-17 08:09:32,345 INFO L138 Inliner]: procedures = 133, calls = 1232, calls flagged for inlining = 49, calls inlined = 41, statements flattened = 1948 [2025-03-17 08:09:32,346 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 08:09:32,347 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 08:09:32,347 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 08:09:32,348 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 08:09:32,356 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:09:32" (1/1) ... [2025-03-17 08:09:32,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:09:32" (1/1) ... [2025-03-17 08:09:32,371 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:09:32" (1/1) ... [2025-03-17 08:09:32,460 INFO L175 MemorySlicer]: Split 952 memory accesses to 22 slices as follows [2, 3, 5, 1, 32, 24, 1, 6, 14, 28, 273, 11, 5, 2, 3, 6, 1, 13, 3, 2, 5, 512]. 54 percent of accesses are in the largest equivalence class. The 780 initializations are split as follows [2, 3, 5, 0, 24, 0, 1, 4, 14, 0, 180, 11, 0, 0, 0, 6, 0, 13, 0, 0, 5, 512]. The 103 writes are split as follows [0, 0, 0, 0, 0, 24, 0, 0, 0, 28, 40, 0, 5, 1, 2, 0, 0, 0, 1, 2, 0, 0]. [2025-03-17 08:09:32,465 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:09:32" (1/1) ... [2025-03-17 08:09:32,465 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:09:32" (1/1) ... [2025-03-17 08:09:32,530 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:09:32" (1/1) ... [2025-03-17 08:09:32,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:09:32" (1/1) ... [2025-03-17 08:09:32,554 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:09:32" (1/1) ... [2025-03-17 08:09:32,566 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:09:32" (1/1) ... [2025-03-17 08:09:32,586 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 08:09:32,589 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 08:09:32,589 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 08:09:32,589 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 08:09:32,590 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:09:32" (1/1) ... [2025-03-17 08:09:32,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 08:09:32,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 08:09:32,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 08:09:32,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 08:09:32,646 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2025-03-17 08:09:32,646 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2025-03-17 08:09:32,646 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2025-03-17 08:09:32,646 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2025-03-17 08:09:32,646 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2025-03-17 08:09:32,646 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2025-03-17 08:09:32,646 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2025-03-17 08:09:32,646 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2025-03-17 08:09:32,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-17 08:09:32,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-17 08:09:32,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2025-03-17 08:09:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#21 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2025-03-17 08:09:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2025-03-17 08:09:32,649 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2025-03-17 08:09:32,649 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2025-03-17 08:09:32,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2025-03-17 08:09:32,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2025-03-17 08:09:32,649 INFO L130 BoogieDeclarations]: Found specification of procedure pg_sleep [2025-03-17 08:09:32,649 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_sleep [2025-03-17 08:09:32,651 INFO L130 BoogieDeclarations]: Found specification of procedure pg_completion [2025-03-17 08:09:32,651 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_completion [2025-03-17 08:09:32,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 08:09:32,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 08:09:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 08:09:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 08:09:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 08:09:32,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2025-03-17 08:09:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2025-03-17 08:09:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure pg_wait [2025-03-17 08:09:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_wait [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2025-03-17 08:09:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2025-03-17 08:09:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2025-03-17 08:09:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2025-03-17 08:09:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2025-03-17 08:09:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_11 [2025-03-17 08:09:32,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_11 [2025-03-17 08:09:32,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2025-03-17 08:09:32,654 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure pg_write [2025-03-17 08:09:32,654 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_write [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-03-17 08:09:32,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2025-03-17 08:09:32,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2025-03-17 08:09:32,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure pg_reset [2025-03-17 08:09:32,659 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_reset [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure pg_identify [2025-03-17 08:09:32,659 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_identify [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2025-03-17 08:09:32,659 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2025-03-17 08:09:32,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2025-03-17 08:09:32,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2025-03-17 08:09:32,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2025-03-17 08:09:32,660 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2025-03-17 08:09:32,660 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure pg_probe [2025-03-17 08:09:32,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_probe [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2025-03-17 08:09:32,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure pg_command [2025-03-17 08:09:32,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_command [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2025-03-17 08:09:32,660 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2025-03-17 08:09:32,661 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2025-03-17 08:09:32,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 08:09:32,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 08:09:32,661 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2025-03-17 08:09:32,663 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2025-03-17 08:09:33,051 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 08:09:33,053 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 08:09:33,159 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2923: havoc ~res~0#1.base, ~res~0#1.offset; [2025-03-17 08:09:33,191 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3073: havoc #t~mem103; [2025-03-17 08:09:33,296 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3248: call ULTIMATE.dealloc(~#expect~0.base, ~#expect~0.offset);havoc ~#expect~0.base, ~#expect~0.offset;call ULTIMATE.dealloc(~#got~0.base, ~#got~0.offset);havoc ~#got~0.base, ~#got~0.offset; [2025-03-17 08:09:33,785 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3367: call ULTIMATE.dealloc(~#ms~0.base, ~#ms~0.offset);havoc ~#ms~0.base, ~#ms~0.offset;call ULTIMATE.dealloc(~#mf~0.base, ~#mf~0.offset);havoc ~#mf~0.base, ~#mf~0.offset;call ULTIMATE.dealloc(~#id~0.base, ~#id~0.offset);havoc ~#id~0.base, ~#id~0.offset;call ULTIMATE.dealloc(~#id_cmd~0.base, ~#id_cmd~0.offset);havoc ~#id_cmd~0.base, ~#id_cmd~0.offset;call ULTIMATE.dealloc(~#buf~0.base, ~#buf~0.offset);havoc ~#buf~0.base, ~#buf~0.offset; [2025-03-17 08:09:33,793 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L4557: havoc #t~nondet285; [2025-03-17 08:09:33,804 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L4564: havoc #t~nondet286; [2025-03-17 08:09:33,809 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L4577: havoc #t~nondet287; [2025-03-17 08:09:33,843 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L4517: havoc #t~nondet280; [2025-03-17 08:09:33,911 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L4581: havoc schedule_timeout_interruptible_#t~nondet288#1; [2025-03-17 08:09:34,001 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L4521: havoc _copy_to_user_#t~nondet281#1; [2025-03-17 08:09:34,184 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3565: call ULTIMATE.dealloc(~#hdr~0.base, ~#hdr~0.offset);havoc ~#hdr~0.base, ~#hdr~0.offset; [2025-03-17 08:09:38,957 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3702: call ULTIMATE.dealloc(pg_init_~#__key~0#1.base, pg_init_~#__key~0#1.offset);havoc pg_init_~#__key~0#1.base, pg_init_~#__key~0#1.offset; [2025-03-17 08:09:38,957 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L4547: havoc noop_llseek_#t~nondet284#1; [2025-03-17 08:09:38,957 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3639: call ULTIMATE.dealloc(pg_read_~#hdr~1#1.base, pg_read_~#hdr~1#1.offset);havoc pg_read_~#hdr~1#1.base, pg_read_~#hdr~1#1.offset; [2025-03-17 08:09:38,957 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2883: havoc iminor_#t~mem18#1; [2025-03-17 08:09:38,957 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2933: havoc __kmalloc_#t~ret37#1.base, __kmalloc_#t~ret37#1.offset; [2025-03-17 08:09:38,957 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L4503: havoc __class_create_#t~ret278#1.base, __class_create_#t~ret278#1.offset; [2025-03-17 08:09:38,957 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L4510: havoc __register_chrdev_#t~nondet279#1; [2025-03-17 08:09:38,957 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L4527: havoc device_create_#t~ret282#1.base, device_create_#t~ret282#1.offset; [2025-03-17 08:09:39,083 INFO L? ?]: Removed 477 outVars from TransFormulas that were not future-live. [2025-03-17 08:09:39,083 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 08:09:39,117 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 08:09:39,122 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 08:09:39,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 08:09:39 BoogieIcfgContainer [2025-03-17 08:09:39,123 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 08:09:39,125 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 08:09:39,125 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 08:09:39,129 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 08:09:39,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 08:09:31" (1/3) ... [2025-03-17 08:09:39,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524d6559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 08:09:39, skipping insertion in model container [2025-03-17 08:09:39,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 08:09:32" (2/3) ... [2025-03-17 08:09:39,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524d6559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 08:09:39, skipping insertion in model container [2025-03-17 08:09:39,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 08:09:39" (3/3) ... [2025-03-17 08:09:39,131 INFO L128 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2025-03-17 08:09:39,142 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 08:09:39,145 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i that has 32 procedures, 502 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-03-17 08:09:39,224 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 08:09:39,236 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;@6ef01caf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 08:09:39,236 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-17 08:09:39,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 502 states, 367 states have (on average 1.3950953678474114) internal successors, (512), 377 states have internal predecessors, (512), 102 states have call successors, (102), 31 states have call predecessors, (102), 31 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2025-03-17 08:09:39,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-17 08:09:39,247 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 08:09:39,247 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 08:09:39,248 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 08:09:39,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 08:09:39,252 INFO L85 PathProgramCache]: Analyzing trace with hash 865807926, now seen corresponding path program 1 times [2025-03-17 08:09:39,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 08:09:39,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31445623] [2025-03-17 08:09:39,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 08:09:39,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 08:09:39,753 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 08:09:39,949 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 08:09:39,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 08:09:39,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 08:09:40,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 08:09:40,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 08:09:40,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31445623] [2025-03-17 08:09:40,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31445623] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 08:09:40,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 08:09:40,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 08:09:40,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627322473] [2025-03-17 08:09:40,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 08:09:40,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 08:09:40,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 08:09:40,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 08:09:40,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 08:09:40,273 INFO L87 Difference]: Start difference. First operand has 502 states, 367 states have (on average 1.3950953678474114) internal successors, (512), 377 states have internal predecessors, (512), 102 states have call successors, (102), 31 states have call predecessors, (102), 31 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 08:09:40,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 08:09:40,511 INFO L93 Difference]: Finished difference Result 1319 states and 1905 transitions. [2025-03-17 08:09:40,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 08:09:40,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-03-17 08:09:40,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 08:09:40,533 INFO L225 Difference]: With dead ends: 1319 [2025-03-17 08:09:40,533 INFO L226 Difference]: Without dead ends: 812 [2025-03-17 08:09:40,541 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 08:09:40,545 INFO L435 NwaCegarLoop]: 856 mSDtfsCounter, 450 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 08:09:40,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 1514 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 08:09:40,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2025-03-17 08:09:40,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 789. [2025-03-17 08:09:40,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 573 states have (on average 1.3717277486910995) internal successors, (786), 583 states have internal predecessors, (786), 165 states have call successors, (165), 51 states have call predecessors, (165), 50 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2025-03-17 08:09:40,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1110 transitions. [2025-03-17 08:09:40,656 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1110 transitions. Word has length 14 [2025-03-17 08:09:40,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 08:09:40,657 INFO L471 AbstractCegarLoop]: Abstraction has 789 states and 1110 transitions. [2025-03-17 08:09:40,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 08:09:40,658 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1110 transitions. [2025-03-17 08:09:40,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-17 08:09:40,659 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 08:09:40,659 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 08:09:40,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 08:09:40,659 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 08:09:40,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 08:09:40,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1884854292, now seen corresponding path program 1 times [2025-03-17 08:09:40,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 08:09:40,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121737189] [2025-03-17 08:09:40,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 08:09:40,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 08:09:41,041 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 08:09:41,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 08:09:41,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 08:09:41,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 08:09:41,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 08:09:41,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 08:09:41,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121737189] [2025-03-17 08:09:41,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121737189] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 08:09:41,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 08:09:41,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 08:09:41,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126617038] [2025-03-17 08:09:41,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 08:09:41,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 08:09:41,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 08:09:41,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 08:09:41,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 08:09:41,260 INFO L87 Difference]: Start difference. First operand 789 states and 1110 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 08:09:41,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 08:09:41,351 INFO L93 Difference]: Finished difference Result 1577 states and 2219 transitions. [2025-03-17 08:09:41,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 08:09:41,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2025-03-17 08:09:41,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 08:09:41,359 INFO L225 Difference]: With dead ends: 1577 [2025-03-17 08:09:41,360 INFO L226 Difference]: Without dead ends: 789 [2025-03-17 08:09:41,363 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 08:09:41,364 INFO L435 NwaCegarLoop]: 690 mSDtfsCounter, 694 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 08:09:41,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 690 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 08:09:41,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2025-03-17 08:09:41,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 789. [2025-03-17 08:09:41,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 573 states have (on average 1.368237347294939) internal successors, (784), 583 states have internal predecessors, (784), 165 states have call successors, (165), 51 states have call predecessors, (165), 50 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2025-03-17 08:09:41,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1108 transitions. [2025-03-17 08:09:41,426 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1108 transitions. Word has length 17 [2025-03-17 08:09:41,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 08:09:41,427 INFO L471 AbstractCegarLoop]: Abstraction has 789 states and 1108 transitions. [2025-03-17 08:09:41,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 08:09:41,427 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1108 transitions. [2025-03-17 08:09:41,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-03-17 08:09:41,429 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 08:09:41,429 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 08:09:41,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 08:09:41,429 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 08:09:41,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 08:09:41,433 INFO L85 PathProgramCache]: Analyzing trace with hash 885631391, now seen corresponding path program 1 times [2025-03-17 08:09:41,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 08:09:41,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958109794] [2025-03-17 08:09:41,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 08:09:41,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 08:09:41,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-17 08:09:41,858 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-17 08:09:41,859 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 08:09:41,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 08:09:42,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 08:09:42,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 08:09:42,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958109794] [2025-03-17 08:09:42,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958109794] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 08:09:42,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 08:09:42,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 08:09:42,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29075325] [2025-03-17 08:09:42,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 08:09:42,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 08:09:42,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 08:09:42,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 08:09:42,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 08:09:42,090 INFO L87 Difference]: Start difference. First operand 789 states and 1108 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 08:09:42,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 08:09:42,256 INFO L93 Difference]: Finished difference Result 1969 states and 2769 transitions. [2025-03-17 08:09:42,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 08:09:42,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2025-03-17 08:09:42,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 08:09:42,265 INFO L225 Difference]: With dead ends: 1969 [2025-03-17 08:09:42,266 INFO L226 Difference]: Without dead ends: 1181 [2025-03-17 08:09:42,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 08:09:42,275 INFO L435 NwaCegarLoop]: 750 mSDtfsCounter, 653 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 08:09:42,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 1302 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 08:09:42,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2025-03-17 08:09:42,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1177. [2025-03-17 08:09:42,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 858 states have (on average 1.3741258741258742) internal successors, (1179), 870 states have internal predecessors, (1179), 240 states have call successors, (240), 79 states have call predecessors, (240), 78 states have return successors, (234), 234 states have call predecessors, (234), 234 states have call successors, (234) [2025-03-17 08:09:42,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1653 transitions. [2025-03-17 08:09:42,337 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1653 transitions. Word has length 20 [2025-03-17 08:09:42,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 08:09:42,337 INFO L471 AbstractCegarLoop]: Abstraction has 1177 states and 1653 transitions. [2025-03-17 08:09:42,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 08:09:42,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1653 transitions. [2025-03-17 08:09:42,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-03-17 08:09:42,338 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 08:09:42,339 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 08:09:42,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 08:09:42,339 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 08:09:42,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 08:09:42,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1725935562, now seen corresponding path program 1 times [2025-03-17 08:09:42,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 08:09:42,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162531434] [2025-03-17 08:09:42,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 08:09:42,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 08:09:42,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-17 08:09:42,733 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-17 08:09:42,733 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 08:09:42,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 08:09:42,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 08:09:42,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 08:09:42,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162531434] [2025-03-17 08:09:42,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162531434] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 08:09:42,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 08:09:42,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 08:09:42,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774744025] [2025-03-17 08:09:42,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 08:09:42,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 08:09:42,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 08:09:42,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 08:09:42,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 08:09:42,935 INFO L87 Difference]: Start difference. First operand 1177 states and 1653 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 08:09:43,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 08:09:43,061 INFO L93 Difference]: Finished difference Result 2367 states and 3327 transitions. [2025-03-17 08:09:43,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 08:09:43,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2025-03-17 08:09:43,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 08:09:43,071 INFO L225 Difference]: With dead ends: 2367 [2025-03-17 08:09:43,071 INFO L226 Difference]: Without dead ends: 1191 [2025-03-17 08:09:43,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 08:09:43,077 INFO L435 NwaCegarLoop]: 688 mSDtfsCounter, 7 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 08:09:43,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1373 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 08:09:43,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1191 states. [2025-03-17 08:09:43,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1191 to 1179. [2025-03-17 08:09:43,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1179 states, 860 states have (on average 1.3732558139534883) internal successors, (1181), 872 states have internal predecessors, (1181), 240 states have call successors, (240), 79 states have call predecessors, (240), 78 states have return successors, (234), 234 states have call predecessors, (234), 234 states have call successors, (234) [2025-03-17 08:09:43,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 1655 transitions. [2025-03-17 08:09:43,166 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 1655 transitions. Word has length 28 [2025-03-17 08:09:43,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 08:09:43,166 INFO L471 AbstractCegarLoop]: Abstraction has 1179 states and 1655 transitions. [2025-03-17 08:09:43,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 08:09:43,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 1655 transitions. [2025-03-17 08:09:43,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-17 08:09:43,168 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 08:09:43,168 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 08:09:43,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 08:09:43,169 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 08:09:43,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 08:09:43,169 INFO L85 PathProgramCache]: Analyzing trace with hash -998153552, now seen corresponding path program 1 times [2025-03-17 08:09:43,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 08:09:43,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672993777] [2025-03-17 08:09:43,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 08:09:43,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 08:09:43,493 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-17 08:09:43,547 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-17 08:09:43,547 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 08:09:43,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 08:09:43,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 08:09:43,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 08:09:43,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672993777] [2025-03-17 08:09:43,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672993777] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 08:09:43,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860476607] [2025-03-17 08:09:43,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 08:09:43,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 08:09:43,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 08:09:43,771 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 08:09:43,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 08:09:44,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-17 08:09:44,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-17 08:09:44,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 08:09:44,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 08:09:44,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 2564 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 08:09:44,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 08:09:44,606 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 08:09:44,606 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 08:09:44,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860476607] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 08:09:44,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 08:09:44,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-03-17 08:09:44,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123559766] [2025-03-17 08:09:44,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 08:09:44,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 08:09:44,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 08:09:44,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 08:09:44,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 08:09:44,607 INFO L87 Difference]: Start difference. First operand 1179 states and 1655 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 08:09:44,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 08:09:44,707 INFO L93 Difference]: Finished difference Result 2383 states and 3351 transitions. [2025-03-17 08:09:44,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 08:09:44,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 38 [2025-03-17 08:09:44,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 08:09:44,715 INFO L225 Difference]: With dead ends: 2383 [2025-03-17 08:09:44,715 INFO L226 Difference]: Without dead ends: 1205 [2025-03-17 08:09:44,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 08:09:44,719 INFO L435 NwaCegarLoop]: 688 mSDtfsCounter, 19 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1361 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 08:09:44,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1361 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 08:09:44,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2025-03-17 08:09:44,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1205. [2025-03-17 08:09:44,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 880 states have (on average 1.3738636363636363) internal successors, (1209), 892 states have internal predecessors, (1209), 246 states have call successors, (246), 79 states have call predecessors, (246), 78 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2025-03-17 08:09:44,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1695 transitions. [2025-03-17 08:09:44,772 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1695 transitions. Word has length 38 [2025-03-17 08:09:44,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 08:09:44,772 INFO L471 AbstractCegarLoop]: Abstraction has 1205 states and 1695 transitions. [2025-03-17 08:09:44,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 08:09:44,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1695 transitions. [2025-03-17 08:09:44,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-17 08:09:44,773 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 08:09:44,774 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 08:09:44,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 08:09:44,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 08:09:44,974 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 08:09:44,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 08:09:44,975 INFO L85 PathProgramCache]: Analyzing trace with hash 2041008592, now seen corresponding path program 1 times [2025-03-17 08:09:44,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 08:09:44,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703601214] [2025-03-17 08:09:44,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 08:09:44,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 08:09:45,335 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 08:09:45,369 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 08:09:45,369 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 08:09:45,369 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 08:09:45,574 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-17 08:09:45,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 08:09:45,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703601214] [2025-03-17 08:09:45,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703601214] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 08:09:45,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166398351] [2025-03-17 08:09:45,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 08:09:45,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 08:09:45,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 08:09:45,578 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 08:09:45,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 08:09:46,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 08:09:46,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 08:09:46,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 08:09:46,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 08:09:46,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 2582 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 08:09:46,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 08:09:46,478 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 08:09:46,478 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 08:09:46,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166398351] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 08:09:46,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 08:09:46,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-17 08:09:46,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280678438] [2025-03-17 08:09:46,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 08:09:46,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 08:09:46,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 08:09:46,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 08:09:46,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 08:09:46,479 INFO L87 Difference]: Start difference. First operand 1205 states and 1695 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 08:09:46,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 08:09:46,534 INFO L93 Difference]: Finished difference Result 1207 states and 1696 transitions. [2025-03-17 08:09:46,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 08:09:46,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2025-03-17 08:09:46,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 08:09:46,541 INFO L225 Difference]: With dead ends: 1207 [2025-03-17 08:09:46,541 INFO L226 Difference]: Without dead ends: 1204 [2025-03-17 08:09:46,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 08:09:46,543 INFO L435 NwaCegarLoop]: 688 mSDtfsCounter, 662 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 08:09:46,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 688 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 08:09:46,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2025-03-17 08:09:46,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1204. [2025-03-17 08:09:46,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 880 states have (on average 1.3727272727272728) internal successors, (1208), 891 states have internal predecessors, (1208), 245 states have call successors, (245), 79 states have call predecessors, (245), 78 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2025-03-17 08:09:46,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1693 transitions. [2025-03-17 08:09:46,591 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1693 transitions. Word has length 43 [2025-03-17 08:09:46,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 08:09:46,591 INFO L471 AbstractCegarLoop]: Abstraction has 1204 states and 1693 transitions. [2025-03-17 08:09:46,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 08:09:46,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1693 transitions. [2025-03-17 08:09:46,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-17 08:09:46,592 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 08:09:46,592 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 08:09:46,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 08:09:46,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-03-17 08:09:46,793 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 08:09:46,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 08:09:46,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1153720341, now seen corresponding path program 1 times [2025-03-17 08:09:46,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 08:09:46,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338102899] [2025-03-17 08:09:46,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 08:09:46,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 08:09:47,123 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-17 08:09:47,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-17 08:09:47,149 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 08:09:47,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 08:09:47,328 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-17 08:09:47,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 08:09:47,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338102899] [2025-03-17 08:09:47,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338102899] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 08:09:47,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416294909] [2025-03-17 08:09:47,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 08:09:47,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 08:09:47,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 08:09:47,331 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 08:09:47,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 08:09:47,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-17 08:09:48,209 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-17 08:09:48,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 08:09:48,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 08:09:48,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 2584 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 08:09:48,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 08:09:48,284 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 08:09:48,284 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 08:09:48,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416294909] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 08:09:48,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 08:09:48,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-17 08:09:48,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107684743] [2025-03-17 08:09:48,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 08:09:48,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 08:09:48,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 08:09:48,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 08:09:48,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 08:09:48,285 INFO L87 Difference]: Start difference. First operand 1204 states and 1693 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 08:09:48,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 08:09:48,329 INFO L93 Difference]: Finished difference Result 1206 states and 1694 transitions. [2025-03-17 08:09:48,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 08:09:48,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2025-03-17 08:09:48,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 08:09:48,335 INFO L225 Difference]: With dead ends: 1206 [2025-03-17 08:09:48,335 INFO L226 Difference]: Without dead ends: 1203 [2025-03-17 08:09:48,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 08:09:48,336 INFO L435 NwaCegarLoop]: 686 mSDtfsCounter, 659 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 08:09:48,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 686 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 08:09:48,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2025-03-17 08:09:48,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1203. [2025-03-17 08:09:48,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 880 states have (on average 1.371590909090909) internal successors, (1207), 890 states have internal predecessors, (1207), 244 states have call successors, (244), 79 states have call predecessors, (244), 78 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2025-03-17 08:09:48,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1691 transitions. [2025-03-17 08:09:48,379 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1691 transitions. Word has length 44 [2025-03-17 08:09:48,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 08:09:48,381 INFO L471 AbstractCegarLoop]: Abstraction has 1203 states and 1691 transitions. [2025-03-17 08:09:48,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 08:09:48,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1691 transitions. [2025-03-17 08:09:48,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-17 08:09:48,383 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 08:09:48,383 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 08:09:48,394 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 08:09:48,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 08:09:48,584 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 08:09:48,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 08:09:48,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1406070479, now seen corresponding path program 1 times [2025-03-17 08:09:48,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 08:09:48,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192513327] [2025-03-17 08:09:48,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 08:09:48,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 08:09:48,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 08:09:48,904 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 08:09:48,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 08:09:48,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 08:09:49,057 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-17 08:09:49,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 08:09:49,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192513327] [2025-03-17 08:09:49,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192513327] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 08:09:49,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372698693] [2025-03-17 08:09:49,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 08:09:49,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 08:09:49,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 08:09:49,061 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 08:09:49,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 08:09:49,629 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 08:09:49,828 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 08:09:49,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 08:09:49,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 08:09:49,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 2586 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 08:09:49,840 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 08:09:49,898 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 08:09:49,898 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 08:09:49,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372698693] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 08:09:49,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 08:09:49,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-17 08:09:49,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908758558] [2025-03-17 08:09:49,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 08:09:49,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 08:09:49,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 08:09:49,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 08:09:49,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 08:09:49,899 INFO L87 Difference]: Start difference. First operand 1203 states and 1691 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 08:09:49,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 08:09:49,951 INFO L93 Difference]: Finished difference Result 1205 states and 1692 transitions. [2025-03-17 08:09:49,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 08:09:49,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2025-03-17 08:09:49,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 08:09:49,958 INFO L225 Difference]: With dead ends: 1205 [2025-03-17 08:09:49,958 INFO L226 Difference]: Without dead ends: 1202 [2025-03-17 08:09:49,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 08:09:49,959 INFO L435 NwaCegarLoop]: 684 mSDtfsCounter, 656 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 08:09:49,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 684 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 08:09:49,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2025-03-17 08:09:49,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1202. [2025-03-17 08:09:49,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 880 states have (on average 1.3704545454545454) internal successors, (1206), 889 states have internal predecessors, (1206), 243 states have call successors, (243), 79 states have call predecessors, (243), 78 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2025-03-17 08:09:50,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1689 transitions. [2025-03-17 08:09:50,004 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1689 transitions. Word has length 45 [2025-03-17 08:09:50,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 08:09:50,005 INFO L471 AbstractCegarLoop]: Abstraction has 1202 states and 1689 transitions. [2025-03-17 08:09:50,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 08:09:50,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1689 transitions. [2025-03-17 08:09:50,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-17 08:09:50,007 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 08:09:50,008 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-17 08:09:50,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 08:09:50,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 08:09:50,208 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 08:09:50,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 08:09:50,209 INFO L85 PathProgramCache]: Analyzing trace with hash -638991188, now seen corresponding path program 1 times [2025-03-17 08:09:50,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 08:09:50,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104767436] [2025-03-17 08:09:50,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 08:09:50,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 08:09:50,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-17 08:09:50,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-17 08:09:50,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 08:09:50,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 08:09:50,773 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-17 08:09:50,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 08:09:50,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104767436] [2025-03-17 08:09:50,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104767436] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 08:09:50,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688509006] [2025-03-17 08:09:50,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 08:09:50,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 08:09:50,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 08:09:50,776 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 08:09:50,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 08:09:51,396 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-17 08:09:51,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-17 08:09:51,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 08:09:51,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 08:09:51,604 INFO L256 TraceCheckSpWp]: Trace formula consists of 2588 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 08:09:51,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 08:09:51,651 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 08:09:51,651 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 08:09:51,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688509006] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 08:09:51,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 08:09:51,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-17 08:09:51,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364006308] [2025-03-17 08:09:51,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 08:09:51,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 08:09:51,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 08:09:51,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 08:09:51,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 08:09:51,652 INFO L87 Difference]: Start difference. First operand 1202 states and 1689 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 08:09:51,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 08:09:51,724 INFO L93 Difference]: Finished difference Result 1619 states and 2250 transitions. [2025-03-17 08:09:51,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 08:09:51,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2025-03-17 08:09:51,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 08:09:51,731 INFO L225 Difference]: With dead ends: 1619 [2025-03-17 08:09:51,731 INFO L226 Difference]: Without dead ends: 1586 [2025-03-17 08:09:51,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 08:09:51,732 INFO L435 NwaCegarLoop]: 749 mSDtfsCounter, 614 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 08:09:51,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 1075 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 08:09:51,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2025-03-17 08:09:51,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1586. [2025-03-17 08:09:51,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1142 states have (on average 1.3458844133099825) internal successors, (1537), 1153 states have internal predecessors, (1537), 334 states have call successors, (334), 110 states have call predecessors, (334), 109 states have return successors, (333), 333 states have call predecessors, (333), 333 states have call successors, (333) [2025-03-17 08:09:51,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2204 transitions. [2025-03-17 08:09:51,791 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2204 transitions. Word has length 46 [2025-03-17 08:09:51,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 08:09:51,791 INFO L471 AbstractCegarLoop]: Abstraction has 1586 states and 2204 transitions. [2025-03-17 08:09:51,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 08:09:51,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2204 transitions. [2025-03-17 08:09:51,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-17 08:09:51,793 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 08:09:51,793 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-03-17 08:09:51,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-17 08:09:51,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 08:09:51,994 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 08:09:51,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 08:09:51,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1636963458, now seen corresponding path program 1 times [2025-03-17 08:09:51,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 08:09:51,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214889605] [2025-03-17 08:09:51,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 08:09:51,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 08:09:52,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-17 08:09:52,402 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 08:09:52,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 08:09:52,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 08:09:52,578 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-17 08:09:52,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 08:09:52,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214889605] [2025-03-17 08:09:52,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214889605] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 08:09:52,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119868648] [2025-03-17 08:09:52,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 08:09:52,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 08:09:52,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 08:09:52,581 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 08:09:52,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 08:09:53,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-17 08:09:53,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-17 08:09:53,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 08:09:53,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 08:09:53,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 2797 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 08:09:53,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 08:09:53,436 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-17 08:09:53,436 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 08:09:53,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119868648] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 08:09:53,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 08:09:53,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-03-17 08:09:53,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084057239] [2025-03-17 08:09:53,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 08:09:53,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 08:09:53,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 08:09:53,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 08:09:53,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 08:09:53,437 INFO L87 Difference]: Start difference. First operand 1586 states and 2204 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 08:09:53,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 08:09:53,547 INFO L93 Difference]: Finished difference Result 3188 states and 4432 transitions. [2025-03-17 08:09:53,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 08:09:53,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 70 [2025-03-17 08:09:53,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 08:09:53,558 INFO L225 Difference]: With dead ends: 3188 [2025-03-17 08:09:53,558 INFO L226 Difference]: Without dead ends: 1603 [2025-03-17 08:09:53,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 08:09:53,563 INFO L435 NwaCegarLoop]: 640 mSDtfsCounter, 17 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 08:09:53,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 1274 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 08:09:53,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1603 states. [2025-03-17 08:09:53,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1603 to 1588. [2025-03-17 08:09:53,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 1144 states have (on average 1.3452797202797202) internal successors, (1539), 1155 states have internal predecessors, (1539), 334 states have call successors, (334), 110 states have call predecessors, (334), 109 states have return successors, (333), 333 states have call predecessors, (333), 333 states have call successors, (333) [2025-03-17 08:09:53,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 2206 transitions. [2025-03-17 08:09:53,632 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 2206 transitions. Word has length 70 [2025-03-17 08:09:53,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 08:09:53,632 INFO L471 AbstractCegarLoop]: Abstraction has 1588 states and 2206 transitions. [2025-03-17 08:09:53,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 08:09:53,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 2206 transitions. [2025-03-17 08:09:53,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-17 08:09:53,637 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 08:09:53,637 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-03-17 08:09:53,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 08:09:53,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 08:09:53,838 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 08:09:53,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 08:09:53,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1064412351, now seen corresponding path program 1 times [2025-03-17 08:09:53,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 08:09:53,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288294716] [2025-03-17 08:09:53,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 08:09:53,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 08:09:54,151 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-17 08:09:54,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-17 08:09:54,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 08:09:54,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 08:09:54,319 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-17 08:09:54,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 08:09:54,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288294716] [2025-03-17 08:09:54,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288294716] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 08:09:54,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566661422] [2025-03-17 08:09:54,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 08:09:54,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 08:09:54,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 08:09:54,322 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 08:09:54,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 08:09:54,963 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-17 08:09:55,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-17 08:09:55,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 08:09:55,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 08:09:55,173 INFO L256 TraceCheckSpWp]: Trace formula consists of 2808 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 08:09:55,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 08:09:55,212 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-17 08:09:55,213 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 08:09:55,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566661422] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 08:09:55,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 08:09:55,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-03-17 08:09:55,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896181160] [2025-03-17 08:09:55,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 08:09:55,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 08:09:55,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 08:09:55,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 08:09:55,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 08:09:55,214 INFO L87 Difference]: Start difference. First operand 1588 states and 2206 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 08:09:59,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 08:09:59,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 08:09:59,336 INFO L93 Difference]: Finished difference Result 2809 states and 3894 transitions. [2025-03-17 08:09:59,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 08:09:59,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 74 [2025-03-17 08:09:59,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 08:09:59,343 INFO L225 Difference]: With dead ends: 2809 [2025-03-17 08:09:59,344 INFO L226 Difference]: Without dead ends: 1220 [2025-03-17 08:09:59,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 08:09:59,349 INFO L435 NwaCegarLoop]: 650 mSDtfsCounter, 0 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1295 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-03-17 08:09:59,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1295 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2025-03-17 08:09:59,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2025-03-17 08:09:59,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1220. [2025-03-17 08:09:59,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 876 states have (on average 1.3333333333333333) internal successors, (1168), 885 states have internal predecessors, (1168), 259 states have call successors, (259), 85 states have call predecessors, (259), 84 states have return successors, (258), 258 states have call predecessors, (258), 258 states have call successors, (258) [2025-03-17 08:09:59,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1685 transitions. [2025-03-17 08:09:59,399 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1685 transitions. Word has length 74 [2025-03-17 08:09:59,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 08:09:59,400 INFO L471 AbstractCegarLoop]: Abstraction has 1220 states and 1685 transitions. [2025-03-17 08:09:59,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 08:09:59,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1685 transitions. [2025-03-17 08:09:59,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-17 08:09:59,402 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 08:09:59,403 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-03-17 08:09:59,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-17 08:09:59,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 08:09:59,604 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-17 08:09:59,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 08:09:59,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1012796992, now seen corresponding path program 1 times [2025-03-17 08:09:59,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 08:09:59,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129898661] [2025-03-17 08:09:59,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 08:09:59,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 08:09:59,909 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-17 08:09:59,928 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-17 08:09:59,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 08:09:59,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 08:10:00,107 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-17 08:10:00,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 08:10:00,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129898661] [2025-03-17 08:10:00,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129898661] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 08:10:00,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595279057] [2025-03-17 08:10:00,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 08:10:00,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 08:10:00,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 08:10:00,144 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 08:10:00,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 08:10:00,896 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-17 08:10:01,111 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-17 08:10:01,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 08:10:01,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 08:10:01,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 2811 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 08:10:01,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 08:10:01,142 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-03-17 08:10:01,143 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 08:10:01,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595279057] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 08:10:01,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 08:10:01,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-03-17 08:10:01,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177261387] [2025-03-17 08:10:01,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 08:10:01,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 08:10:01,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 08:10:01,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 08:10:01,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 08:10:01,148 INFO L87 Difference]: Start difference. First operand 1220 states and 1685 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 08:10:05,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 08:10:05,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 08:10:05,272 INFO L93 Difference]: Finished difference Result 1220 states and 1685 transitions. [2025-03-17 08:10:05,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 08:10:05,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 74 [2025-03-17 08:10:05,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 08:10:05,274 INFO L225 Difference]: With dead ends: 1220 [2025-03-17 08:10:05,275 INFO L226 Difference]: Without dead ends: 0 [2025-03-17 08:10:05,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 08:10:05,279 INFO L435 NwaCegarLoop]: 869 mSDtfsCounter, 324 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 1479 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-03-17 08:10:05,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 1479 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2025-03-17 08:10:05,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-17 08:10:05,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-17 08:10:05,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 08:10:05,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-17 08:10:05,281 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 74 [2025-03-17 08:10:05,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 08:10:05,281 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-17 08:10:05,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 08:10:05,281 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-17 08:10:05,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-17 08:10:05,284 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-17 08:10:05,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-17 08:10:05,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-03-17 08:10:05,487 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 08:10:05,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-17 08:10:11,797 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 08:10:11,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 08:10:11 BoogieIcfgContainer [2025-03-17 08:10:11,807 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 08:10:11,808 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 08:10:11,808 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 08:10:11,808 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 08:10:11,808 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 08:09:39" (3/4) ... [2025-03-17 08:10:11,810 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 08:10:11,814 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure copy_from_user [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure pi_release [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure pi_init [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure write_reg [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure pg_sleep [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure pi_read_regr [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure might_fault [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure printk [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure pi_disconnect [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure pg_probe [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure status_reg [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure pg_completion [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure ldv_unregister_chrdev_11 [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure DRIVE [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure mutex_unlock [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure copy_to_user [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure pg_wait [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure ldv_error [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure pg_write [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure pi_connect [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure pg_command [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure clear_bit [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure read_reg [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure pg_reset [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure mutex_lock [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure xs [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure pg_identify [2025-03-17 08:10:11,815 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure pi_write_block [2025-03-17 08:10:11,846 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 208 nodes and edges [2025-03-17 08:10:11,849 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 94 nodes and edges [2025-03-17 08:10:11,851 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2025-03-17 08:10:11,853 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-03-17 08:10:11,855 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-17 08:10:11,857 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-17 08:10:11,859 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-17 08:10:12,009 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 08:10:12,010 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 08:10:12,010 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 08:10:12,011 INFO L158 Benchmark]: Toolchain (without parser) took 41004.08ms. Allocated memory was 167.8MB in the beginning and 973.1MB in the end (delta: 805.3MB). Free memory was 124.3MB in the beginning and 361.4MB in the end (delta: -237.1MB). Peak memory consumption was 564.5MB. Max. memory is 16.1GB. [2025-03-17 08:10:12,011 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 08:10:12,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1169.47ms. Allocated memory is still 167.8MB. Free memory was 123.9MB in the beginning and 48.5MB in the end (delta: 75.4MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2025-03-17 08:10:12,011 INFO L158 Benchmark]: Boogie Procedure Inliner took 168.24ms. Allocated memory is still 167.8MB. Free memory was 48.5MB in the beginning and 112.2MB in the end (delta: -63.7MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2025-03-17 08:10:12,011 INFO L158 Benchmark]: Boogie Preprocessor took 241.48ms. Allocated memory is still 167.8MB. Free memory was 112.2MB in the beginning and 88.2MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-17 08:10:12,012 INFO L158 Benchmark]: IcfgBuilder took 6534.07ms. Allocated memory is still 167.8MB. Free memory was 88.2MB in the beginning and 40.6MB in the end (delta: 47.6MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. [2025-03-17 08:10:12,012 INFO L158 Benchmark]: TraceAbstraction took 32682.49ms. Allocated memory was 167.8MB in the beginning and 973.1MB in the end (delta: 805.3MB). Free memory was 40.6MB in the beginning and 390.7MB in the end (delta: -350.1MB). Peak memory consumption was 516.1MB. Max. memory is 16.1GB. [2025-03-17 08:10:12,012 INFO L158 Benchmark]: Witness Printer took 202.27ms. Allocated memory is still 973.1MB. Free memory was 390.7MB in the beginning and 361.4MB in the end (delta: 29.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-17 08:10:12,015 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1169.47ms. Allocated memory is still 167.8MB. Free memory was 123.9MB in the beginning and 48.5MB in the end (delta: 75.4MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 168.24ms. Allocated memory is still 167.8MB. Free memory was 48.5MB in the beginning and 112.2MB in the end (delta: -63.7MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 241.48ms. Allocated memory is still 167.8MB. Free memory was 112.2MB in the beginning and 88.2MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * IcfgBuilder took 6534.07ms. Allocated memory is still 167.8MB. Free memory was 88.2MB in the beginning and 40.6MB in the end (delta: 47.6MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. * TraceAbstraction took 32682.49ms. Allocated memory was 167.8MB in the beginning and 973.1MB in the end (delta: 805.3MB). Free memory was 40.6MB in the beginning and 390.7MB in the end (delta: -350.1MB). Peak memory consumption was 516.1MB. Max. memory is 16.1GB. * Witness Printer took 202.27ms. Allocated memory is still 973.1MB. Free memory was 390.7MB in the beginning and 361.4MB in the end (delta: 29.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 2808]: 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)); [2808] - GenericResultAtLocation [Line: 2815]: 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 %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [2815-2816] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 4044]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 32 procedures, 502 locations, 818 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 26.3s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 4764 SdHoareTripleChecker+Valid, 8.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4755 mSDsluCounter, 13421 SdHoareTripleChecker+Invalid, 8.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4783 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 308 IncrementalHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 8638 mSDtfsCounter, 308 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 468 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1588occurred in iteration=10, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 54 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 947 NumberOfCodeBlocks, 947 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 927 ConstructedInterpolants, 0 QuantifiedInterpolants, 1450 SizeOfPredicates, 0 NumberOfNonLiveVariables, 21320 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 20 InterpolantComputations, 12 PerfectInterpolantSequences, 102/110 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 3033]: Location Invariant Derived location invariant: ((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) RESULT: Ultimate proved your program to be correct! [2025-03-17 08:10:12,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE