./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 37b391ae58c5e6c2e62d05a454cd149d807feea3462a4157cf615889ce62b744 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 18:38:54,909 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 18:38:54,963 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 18:38:54,967 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 18:38:54,968 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 18:38:54,988 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 18:38:54,989 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 18:38:54,989 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 18:38:54,989 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 18:38:54,989 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 18:38:54,990 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 18:38:54,990 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 18:38:54,990 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 18:38:54,990 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 18:38:54,991 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 18:38:54,991 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 18:38:54,991 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 18:38:54,991 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 18:38:54,991 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 18:38:54,991 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 18:38:54,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 18:38:54,992 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 18:38:54,992 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 18:38:54,992 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 18:38:54,992 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 18:38:54,992 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 18:38:54,992 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 18:38:54,992 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 18:38:54,992 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 18:38:54,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 18:38:54,992 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 18:38:54,992 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 18:38:54,992 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 18:38:54,993 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 18:38:54,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 18:38:54,993 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 18:38:54,993 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 18:38:54,993 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 18:38:54,993 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 18:38:54,993 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 18:38:54,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 18:38:54,994 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 18:38:54,994 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 18:38:54,994 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 18:38:54,994 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 18:38:54,994 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37b391ae58c5e6c2e62d05a454cd149d807feea3462a4157cf615889ce62b744 [2025-01-09 18:38:55,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 18:38:55,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 18:38:55,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 18:38:55,257 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 18:38:55,257 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 18:38:55,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i [2025-01-09 18:38:56,416 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f9665e63c/1d45b84b273742baaaad6f4ac6b6d5d5/FLAGa91a40fd5 [2025-01-09 18:38:56,898 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 18:38:56,899 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i [2025-01-09 18:38:56,932 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f9665e63c/1d45b84b273742baaaad6f4ac6b6d5d5/FLAGa91a40fd5 [2025-01-09 18:38:57,013 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f9665e63c/1d45b84b273742baaaad6f4ac6b6d5d5 [2025-01-09 18:38:57,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 18:38:57,015 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 18:38:57,017 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 18:38:57,017 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 18:38:57,020 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 18:38:57,020 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 06:38:57" (1/1) ... [2025-01-09 18:38:57,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7696888c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:57, skipping insertion in model container [2025-01-09 18:38:57,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 06:38:57" (1/1) ... [2025-01-09 18:38:57,084 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 18:38:57,899 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i[158797,158810] [2025-01-09 18:38:57,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 18:38:57,958 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 18:38:58,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [2769-2770] [2025-01-09 18:38:58,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [2796] [2025-01-09 18:38:58,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2799] [2025-01-09 18:38:58,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2802] [2025-01-09 18:38:58,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2805] [2025-01-09 18:38:58,107 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)ep->ep_list.next) [3649] [2025-01-09 18:38:58,110 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)ep->ep_list.next) [3671] [2025-01-09 18:38:58,188 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i[158797,158810] [2025-01-09 18:38:58,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 18:38:58,265 INFO L204 MainTranslator]: Completed translation [2025-01-09 18:38:58,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:58 WrapperNode [2025-01-09 18:38:58,266 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 18:38:58,268 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 18:38:58,268 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 18:38:58,268 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 18:38:58,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:58" (1/1) ... [2025-01-09 18:38:58,344 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:58" (1/1) ... [2025-01-09 18:38:58,520 INFO L138 Inliner]: procedures = 189, calls = 2554, calls flagged for inlining = 78, calls inlined = 78, statements flattened = 4799 [2025-01-09 18:38:58,521 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 18:38:58,521 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 18:38:58,521 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 18:38:58,521 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 18:38:58,529 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:58" (1/1) ... [2025-01-09 18:38:58,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:58" (1/1) ... [2025-01-09 18:38:58,551 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:58" (1/1) ... [2025-01-09 18:38:58,903 INFO L175 MemorySlicer]: Split 1878 memory accesses to 13 slices as follows [2, 6, 12, 26, 13, 5, 0, 8, 19, 23, 2, 1737, 25]. 92 percent of accesses are in the largest equivalence class. The 1387 initializations are split as follows [2, 1, 12, 0, 8, 2, 0, 0, 8, 0, 0, 1332, 22]. The 231 writes are split as follows [0, 0, 0, 26, 0, 0, 0, 1, 1, 23, 0, 180, 0]. [2025-01-09 18:38:58,903 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:58" (1/1) ... [2025-01-09 18:38:58,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:58" (1/1) ... [2025-01-09 18:38:59,002 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:58" (1/1) ... [2025-01-09 18:38:59,015 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:58" (1/1) ... [2025-01-09 18:38:59,035 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:58" (1/1) ... [2025-01-09 18:38:59,056 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:58" (1/1) ... [2025-01-09 18:38:59,075 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:58" (1/1) ... [2025-01-09 18:38:59,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 18:38:59,097 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 18:38:59,097 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 18:38:59,097 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 18:38:59,098 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:58" (1/1) ... [2025-01-09 18:38:59,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 18:38:59,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 18:38:59,149 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 18:38:59,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 18:38:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2025-01-09 18:38:59,176 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2025-01-09 18:38:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2025-01-09 18:38:59,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2025-01-09 18:38:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2025-01-09 18:38:59,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2025-01-09 18:38:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2025-01-09 18:38:59,176 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2025-01-09 18:38:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 18:38:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 18:38:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 18:38:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 18:38:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 18:38:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 18:38:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 18:38:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-01-09 18:38:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-01-09 18:38:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2025-01-09 18:38:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2025-01-09 18:38:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2025-01-09 18:38:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2025-01-09 18:38:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2025-01-09 18:38:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2025-01-09 18:38:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2025-01-09 18:38:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2025-01-09 18:38:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2025-01-09 18:38:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2025-01-09 18:38:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2025-01-09 18:38:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2025-01-09 18:38:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2025-01-09 18:38:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2025-01-09 18:38:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2025-01-09 18:38:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2025-01-09 18:38:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2025-01-09 18:38:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 18:38:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 18:38:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 18:38:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 18:38:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 18:38:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 18:38:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-01-09 18:38:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-01-09 18:38:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-01-09 18:38:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2025-01-09 18:38:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2025-01-09 18:38:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2025-01-09 18:38:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2025-01-09 18:38:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2025-01-09 18:38:59,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2025-01-09 18:38:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 18:38:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 18:38:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 18:38:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 18:38:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 18:38:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 18:38:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 18:38:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 18:38:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-01-09 18:38:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-01-09 18:38:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-01-09 18:38:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-01-09 18:38:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-01-09 18:38:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2025-01-09 18:38:59,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2025-01-09 18:38:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2025-01-09 18:38:59,181 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2025-01-09 18:38:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2025-01-09 18:38:59,181 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2025-01-09 18:38:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2025-01-09 18:38:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2025-01-09 18:38:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2025-01-09 18:38:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2025-01-09 18:38:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2025-01-09 18:38:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2025-01-09 18:38:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2025-01-09 18:38:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2025-01-09 18:38:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2025-01-09 18:38:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2025-01-09 18:38:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2025-01-09 18:38:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2025-01-09 18:38:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2025-01-09 18:38:59,183 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2025-01-09 18:38:59,183 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2025-01-09 18:38:59,183 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2025-01-09 18:38:59,183 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2025-01-09 18:38:59,183 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2025-01-09 18:38:59,183 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2025-01-09 18:38:59,183 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2025-01-09 18:38:59,183 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2025-01-09 18:38:59,183 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2025-01-09 18:38:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2025-01-09 18:38:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2025-01-09 18:38:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2025-01-09 18:38:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2025-01-09 18:38:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2025-01-09 18:38:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2025-01-09 18:38:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2025-01-09 18:38:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2025-01-09 18:38:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2025-01-09 18:38:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2025-01-09 18:38:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2025-01-09 18:38:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2025-01-09 18:38:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2025-01-09 18:38:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-01-09 18:38:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2025-01-09 18:38:59,186 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2025-01-09 18:38:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2025-01-09 18:38:59,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2025-01-09 18:38:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2025-01-09 18:38:59,186 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2025-01-09 18:38:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2025-01-09 18:38:59,186 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2025-01-09 18:38:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2025-01-09 18:38:59,186 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2025-01-09 18:38:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2025-01-09 18:38:59,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2025-01-09 18:38:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-01-09 18:38:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-01-09 18:38:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-01-09 18:38:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2025-01-09 18:38:59,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2025-01-09 18:38:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 18:38:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 18:38:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 18:38:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 18:38:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 18:38:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 18:38:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 18:38:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-01-09 18:38:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-01-09 18:38:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-01-09 18:38:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-01-09 18:38:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2025-01-09 18:38:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2025-01-09 18:38:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2025-01-09 18:38:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2025-01-09 18:38:59,188 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2025-01-09 18:38:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2025-01-09 18:38:59,188 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2025-01-09 18:38:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2025-01-09 18:38:59,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2025-01-09 18:38:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 18:38:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 18:38:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 18:38:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 18:38:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 18:38:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 18:38:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2025-01-09 18:38:59,191 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2025-01-09 18:38:59,191 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2025-01-09 18:38:59,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2025-01-09 18:38:59,191 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2025-01-09 18:38:59,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2025-01-09 18:38:59,191 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2025-01-09 18:38:59,191 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2025-01-09 18:38:59,191 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2025-01-09 18:38:59,191 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2025-01-09 18:38:59,191 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2025-01-09 18:38:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2025-01-09 18:38:59,191 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2025-01-09 18:38:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2025-01-09 18:38:59,192 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2025-01-09 18:38:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2025-01-09 18:38:59,192 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2025-01-09 18:38:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2025-01-09 18:38:59,192 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2025-01-09 18:38:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2025-01-09 18:38:59,192 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2025-01-09 18:38:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2025-01-09 18:38:59,192 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2025-01-09 18:38:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2025-01-09 18:38:59,192 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2025-01-09 18:38:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2025-01-09 18:38:59,192 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2025-01-09 18:38:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2025-01-09 18:38:59,192 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2025-01-09 18:38:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2025-01-09 18:38:59,192 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2025-01-09 18:38:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2025-01-09 18:38:59,192 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2025-01-09 18:38:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2025-01-09 18:38:59,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2025-01-09 18:38:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2025-01-09 18:38:59,192 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2025-01-09 18:38:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2025-01-09 18:38:59,192 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2025-01-09 18:38:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2025-01-09 18:38:59,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2025-01-09 18:38:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2025-01-09 18:38:59,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2025-01-09 18:38:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2025-01-09 18:38:59,194 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2025-01-09 18:38:59,194 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 18:38:59,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 18:38:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2025-01-09 18:38:59,194 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2025-01-09 18:38:59,751 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 18:38:59,753 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 18:38:59,934 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2025-01-09 18:39:07,761 INFO L? ?]: Removed 1655 outVars from TransFormulas that were not future-live. [2025-01-09 18:39:07,761 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 18:39:07,788 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 18:39:07,788 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 18:39:07,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 06:39:07 BoogieIcfgContainer [2025-01-09 18:39:07,789 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 18:39:07,790 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 18:39:07,790 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 18:39:07,797 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 18:39:07,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 06:38:57" (1/3) ... [2025-01-09 18:39:07,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795bc5f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 06:39:07, skipping insertion in model container [2025-01-09 18:39:07,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:58" (2/3) ... [2025-01-09 18:39:07,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795bc5f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 06:39:07, skipping insertion in model container [2025-01-09 18:39:07,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 06:39:07" (3/3) ... [2025-01-09 18:39:07,803 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i [2025-01-09 18:39:07,818 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 18:39:07,821 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i that has 95 procedures, 1500 locations, 1 initial locations, 40 loop locations, and 1 error locations. [2025-01-09 18:39:07,903 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 18:39:07,911 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;@75b3efa1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 18:39:07,911 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 18:39:07,918 INFO L276 IsEmpty]: Start isEmpty. Operand has 1395 states, 959 states have (on average 1.3618352450469238) internal successors, (1306), 1002 states have internal predecessors, (1306), 364 states have call successors, (364), 71 states have call predecessors, (364), 70 states have return successors, (359), 356 states have call predecessors, (359), 359 states have call successors, (359) [2025-01-09 18:39:07,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2025-01-09 18:39:07,928 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:39:07,929 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:39:07,930 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:39:07,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:39:07,933 INFO L85 PathProgramCache]: Analyzing trace with hash 450639526, now seen corresponding path program 1 times [2025-01-09 18:39:07,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:39:07,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998069116] [2025-01-09 18:39:07,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:07,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:39:09,274 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 171 statements into 1 equivalence classes. [2025-01-09 18:39:09,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 171 of 171 statements. [2025-01-09 18:39:09,541 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:09,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:09,887 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2025-01-09 18:39:09,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:39:09,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998069116] [2025-01-09 18:39:09,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998069116] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 18:39:09,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513646323] [2025-01-09 18:39:09,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:09,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 18:39:09,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 18:39:09,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 18:39:09,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 18:39:11,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 171 statements into 1 equivalence classes. [2025-01-09 18:39:12,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 171 of 171 statements. [2025-01-09 18:39:12,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:12,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:12,256 INFO L256 TraceCheckSpWp]: Trace formula consists of 5287 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 18:39:12,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 18:39:12,288 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2025-01-09 18:39:12,288 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 18:39:12,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513646323] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:39:12,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 18:39:12,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 18:39:12,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193263557] [2025-01-09 18:39:12,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:39:12,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 18:39:12,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:39:12,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 18:39:12,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 18:39:12,308 INFO L87 Difference]: Start difference. First operand has 1395 states, 959 states have (on average 1.3618352450469238) internal successors, (1306), 1002 states have internal predecessors, (1306), 364 states have call successors, (364), 71 states have call predecessors, (364), 70 states have return successors, (359), 356 states have call predecessors, (359), 359 states have call successors, (359) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 18:39:12,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:39:12,403 INFO L93 Difference]: Finished difference Result 2785 states and 4109 transitions. [2025-01-09 18:39:12,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 18:39:12,404 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 171 [2025-01-09 18:39:12,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:39:12,421 INFO L225 Difference]: With dead ends: 2785 [2025-01-09 18:39:12,421 INFO L226 Difference]: Without dead ends: 1383 [2025-01-09 18:39:12,439 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 18:39:12,441 INFO L435 NwaCegarLoop]: 2006 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 18:39:12,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2006 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 18:39:12,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2025-01-09 18:39:12,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1383. [2025-01-09 18:39:12,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1383 states, 954 states have (on average 1.3480083857442349) internal successors, (1286), 990 states have internal predecessors, (1286), 359 states have call successors, (359), 70 states have call predecessors, (359), 69 states have return successors, (346), 343 states have call predecessors, (346), 346 states have call successors, (346) [2025-01-09 18:39:12,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 1991 transitions. [2025-01-09 18:39:12,535 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 1991 transitions. Word has length 171 [2025-01-09 18:39:12,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:39:12,535 INFO L471 AbstractCegarLoop]: Abstraction has 1383 states and 1991 transitions. [2025-01-09 18:39:12,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 18:39:12,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 1991 transitions. [2025-01-09 18:39:12,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2025-01-09 18:39:12,538 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:39:12,538 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:39:12,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 18:39:12,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 18:39:12,743 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:39:12,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:39:12,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1985247514, now seen corresponding path program 1 times [2025-01-09 18:39:12,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:39:12,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672758609] [2025-01-09 18:39:12,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:12,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:39:13,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 171 statements into 1 equivalence classes. [2025-01-09 18:39:13,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 171 of 171 statements. [2025-01-09 18:39:13,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:13,962 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:14,285 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2025-01-09 18:39:14,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:39:14,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672758609] [2025-01-09 18:39:14,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672758609] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:39:14,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:39:14,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 18:39:14,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664393641] [2025-01-09 18:39:14,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:39:14,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 18:39:14,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:39:14,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 18:39:14,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:39:14,290 INFO L87 Difference]: Start difference. First operand 1383 states and 1991 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-01-09 18:39:14,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:39:14,482 INFO L93 Difference]: Finished difference Result 2702 states and 3895 transitions. [2025-01-09 18:39:14,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 18:39:14,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 171 [2025-01-09 18:39:14,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:39:14,504 INFO L225 Difference]: With dead ends: 2702 [2025-01-09 18:39:14,504 INFO L226 Difference]: Without dead ends: 2673 [2025-01-09 18:39:14,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:39:14,507 INFO L435 NwaCegarLoop]: 1977 mSDtfsCounter, 1933 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1933 SdHoareTripleChecker+Valid, 3856 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 18:39:14,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1933 Valid, 3856 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 18:39:14,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2673 states. [2025-01-09 18:39:14,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2673 to 2669. [2025-01-09 18:39:14,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2669 states, 1852 states have (on average 1.349892008639309) internal successors, (2500), 1913 states have internal predecessors, (2500), 683 states have call successors, (683), 135 states have call predecessors, (683), 133 states have return successors, (671), 662 states have call predecessors, (671), 671 states have call successors, (671) [2025-01-09 18:39:14,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 3854 transitions. [2025-01-09 18:39:14,619 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 3854 transitions. Word has length 171 [2025-01-09 18:39:14,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:39:14,621 INFO L471 AbstractCegarLoop]: Abstraction has 2669 states and 3854 transitions. [2025-01-09 18:39:14,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-01-09 18:39:14,622 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 3854 transitions. [2025-01-09 18:39:14,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2025-01-09 18:39:14,626 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:39:14,626 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:39:14,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 18:39:14,626 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:39:14,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:39:14,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1412259008, now seen corresponding path program 1 times [2025-01-09 18:39:14,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:39:14,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880258779] [2025-01-09 18:39:14,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:14,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:39:15,882 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 172 statements into 1 equivalence classes. [2025-01-09 18:39:15,944 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 172 of 172 statements. [2025-01-09 18:39:15,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:15,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:16,164 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2025-01-09 18:39:16,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:39:16,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880258779] [2025-01-09 18:39:16,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880258779] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:39:16,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:39:16,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 18:39:16,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950318786] [2025-01-09 18:39:16,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:39:16,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 18:39:16,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:39:16,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 18:39:16,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:39:16,167 INFO L87 Difference]: Start difference. First operand 2669 states and 3854 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-01-09 18:39:16,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:39:16,335 INFO L93 Difference]: Finished difference Result 7905 states and 11434 transitions. [2025-01-09 18:39:16,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 18:39:16,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 172 [2025-01-09 18:39:16,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:39:16,364 INFO L225 Difference]: With dead ends: 7905 [2025-01-09 18:39:16,364 INFO L226 Difference]: Without dead ends: 5270 [2025-01-09 18:39:16,373 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:39:16,374 INFO L435 NwaCegarLoop]: 1991 mSDtfsCounter, 1933 mSDsluCounter, 1888 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1933 SdHoareTripleChecker+Valid, 3879 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 18:39:16,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1933 Valid, 3879 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 18:39:16,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5270 states. [2025-01-09 18:39:16,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5270 to 5262. [2025-01-09 18:39:16,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5262 states, 3663 states have (on average 1.3518973518973518) internal successors, (4952), 3776 states have internal predecessors, (4952), 1337 states have call successors, (1337), 265 states have call predecessors, (1337), 261 states have return successors, (1319), 1304 states have call predecessors, (1319), 1319 states have call successors, (1319) [2025-01-09 18:39:16,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5262 states to 5262 states and 7608 transitions. [2025-01-09 18:39:16,548 INFO L78 Accepts]: Start accepts. Automaton has 5262 states and 7608 transitions. Word has length 172 [2025-01-09 18:39:16,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:39:16,548 INFO L471 AbstractCegarLoop]: Abstraction has 5262 states and 7608 transitions. [2025-01-09 18:39:16,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-01-09 18:39:16,549 INFO L276 IsEmpty]: Start isEmpty. Operand 5262 states and 7608 transitions. [2025-01-09 18:39:16,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2025-01-09 18:39:16,552 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:39:16,552 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:39:16,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 18:39:16,552 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:39:16,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:39:16,553 INFO L85 PathProgramCache]: Analyzing trace with hash -962117445, now seen corresponding path program 1 times [2025-01-09 18:39:16,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:39:16,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033263906] [2025-01-09 18:39:16,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:16,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:39:17,773 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 174 statements into 1 equivalence classes. [2025-01-09 18:39:17,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 174 of 174 statements. [2025-01-09 18:39:17,829 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:17,829 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:18,128 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2025-01-09 18:39:18,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:39:18,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033263906] [2025-01-09 18:39:18,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033263906] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:39:18,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:39:18,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 18:39:18,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067699450] [2025-01-09 18:39:18,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:39:18,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 18:39:18,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:39:18,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 18:39:18,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:39:18,131 INFO L87 Difference]: Start difference. First operand 5262 states and 7608 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 18:39:22,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 18:39:22,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:39:22,521 INFO L93 Difference]: Finished difference Result 15444 states and 22365 transitions. [2025-01-09 18:39:22,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 18:39:22,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 174 [2025-01-09 18:39:22,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:39:22,587 INFO L225 Difference]: With dead ends: 15444 [2025-01-09 18:39:22,587 INFO L226 Difference]: Without dead ends: 10216 [2025-01-09 18:39:22,612 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:39:22,614 INFO L435 NwaCegarLoop]: 2462 mSDtfsCounter, 1893 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1893 SdHoareTripleChecker+Valid, 4338 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2025-01-09 18:39:22,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1893 Valid, 4338 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2025-01-09 18:39:22,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10216 states. [2025-01-09 18:39:22,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10216 to 10208. [2025-01-09 18:39:22,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10208 states, 7110 states have (on average 1.3544303797468353) internal successors, (9630), 7318 states have internal predecessors, (9630), 2585 states have call successors, (2585), 517 states have call predecessors, (2585), 512 states have return successors, (2567), 2540 states have call predecessors, (2567), 2567 states have call successors, (2567) [2025-01-09 18:39:23,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10208 states to 10208 states and 14782 transitions. [2025-01-09 18:39:23,059 INFO L78 Accepts]: Start accepts. Automaton has 10208 states and 14782 transitions. Word has length 174 [2025-01-09 18:39:23,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:39:23,063 INFO L471 AbstractCegarLoop]: Abstraction has 10208 states and 14782 transitions. [2025-01-09 18:39:23,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 18:39:23,063 INFO L276 IsEmpty]: Start isEmpty. Operand 10208 states and 14782 transitions. [2025-01-09 18:39:23,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2025-01-09 18:39:23,065 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:39:23,066 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:39:23,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 18:39:23,066 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:39:23,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:39:23,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1282377259, now seen corresponding path program 1 times [2025-01-09 18:39:23,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:39:23,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044553959] [2025-01-09 18:39:23,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:23,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:39:24,268 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 195 statements into 1 equivalence classes. [2025-01-09 18:39:24,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 195 of 195 statements. [2025-01-09 18:39:24,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:24,336 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:24,650 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2025-01-09 18:39:24,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:39:24,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044553959] [2025-01-09 18:39:24,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044553959] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:39:24,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:39:24,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 18:39:24,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216245144] [2025-01-09 18:39:24,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:39:24,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 18:39:24,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:39:24,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 18:39:24,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:39:24,652 INFO L87 Difference]: Start difference. First operand 10208 states and 14782 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 18:39:25,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:39:25,039 INFO L93 Difference]: Finished difference Result 30537 states and 44238 transitions. [2025-01-09 18:39:25,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 18:39:25,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 195 [2025-01-09 18:39:25,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:39:25,168 INFO L225 Difference]: With dead ends: 30537 [2025-01-09 18:39:25,168 INFO L226 Difference]: Without dead ends: 20360 [2025-01-09 18:39:25,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:39:25,223 INFO L435 NwaCegarLoop]: 2040 mSDtfsCounter, 1921 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1921 SdHoareTripleChecker+Valid, 3951 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 18:39:25,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1921 Valid, 3951 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 18:39:25,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20360 states. [2025-01-09 18:39:25,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20360 to 20317. [2025-01-09 18:39:25,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20317 states, 14167 states have (on average 1.3551210559751534) internal successors, (19198), 14573 states have internal predecessors, (19198), 5133 states have call successors, (5133), 1024 states have call predecessors, (5133), 1016 states have return successors, (5113), 5055 states have call predecessors, (5113), 5113 states have call successors, (5113) [2025-01-09 18:39:26,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20317 states to 20317 states and 29444 transitions. [2025-01-09 18:39:26,034 INFO L78 Accepts]: Start accepts. Automaton has 20317 states and 29444 transitions. Word has length 195 [2025-01-09 18:39:26,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:39:26,034 INFO L471 AbstractCegarLoop]: Abstraction has 20317 states and 29444 transitions. [2025-01-09 18:39:26,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 18:39:26,035 INFO L276 IsEmpty]: Start isEmpty. Operand 20317 states and 29444 transitions. [2025-01-09 18:39:26,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2025-01-09 18:39:26,043 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:39:26,043 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:39:26,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 18:39:26,044 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:39:26,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:39:26,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1282391141, now seen corresponding path program 1 times [2025-01-09 18:39:26,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:39:26,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675985909] [2025-01-09 18:39:26,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:26,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:39:27,298 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-01-09 18:39:27,451 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-01-09 18:39:27,455 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:27,455 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:28,459 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2025-01-09 18:39:28,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:39:28,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675985909] [2025-01-09 18:39:28,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675985909] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 18:39:28,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127419521] [2025-01-09 18:39:28,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:28,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 18:39:28,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 18:39:28,465 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 18:39:28,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 18:39:30,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 197 statements into 1 equivalence classes. [2025-01-09 18:39:33,590 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 197 of 197 statements. [2025-01-09 18:39:33,590 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:33,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:33,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 5399 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-01-09 18:39:33,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 18:39:33,797 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2025-01-09 18:39:33,797 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 18:39:33,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127419521] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:39:33,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 18:39:33,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2025-01-09 18:39:33,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121531593] [2025-01-09 18:39:33,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:39:33,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 18:39:33,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:39:33,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 18:39:33,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 18:39:33,799 INFO L87 Difference]: Start difference. First operand 20317 states and 29444 transitions. Second operand has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2025-01-09 18:39:34,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:39:34,586 INFO L93 Difference]: Finished difference Result 40624 states and 58876 transitions. [2025-01-09 18:39:34,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 18:39:34,587 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 197 [2025-01-09 18:39:34,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:39:34,683 INFO L225 Difference]: With dead ends: 40624 [2025-01-09 18:39:34,684 INFO L226 Difference]: Without dead ends: 20318 [2025-01-09 18:39:34,741 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-01-09 18:39:34,741 INFO L435 NwaCegarLoop]: 1969 mSDtfsCounter, 4 mSDsluCounter, 7860 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9829 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 18:39:34,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9829 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 18:39:34,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20318 states. [2025-01-09 18:39:35,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20318 to 20318. [2025-01-09 18:39:35,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20318 states, 14168 states have (on average 1.3550959909655562) internal successors, (19199), 14574 states have internal predecessors, (19199), 5133 states have call successors, (5133), 1024 states have call predecessors, (5133), 1016 states have return successors, (5113), 5055 states have call predecessors, (5113), 5113 states have call successors, (5113) [2025-01-09 18:39:35,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20318 states to 20318 states and 29445 transitions. [2025-01-09 18:39:35,465 INFO L78 Accepts]: Start accepts. Automaton has 20318 states and 29445 transitions. Word has length 197 [2025-01-09 18:39:35,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:39:35,466 INFO L471 AbstractCegarLoop]: Abstraction has 20318 states and 29445 transitions. [2025-01-09 18:39:35,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2025-01-09 18:39:35,467 INFO L276 IsEmpty]: Start isEmpty. Operand 20318 states and 29445 transitions. [2025-01-09 18:39:35,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2025-01-09 18:39:35,470 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:39:35,470 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:39:35,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-09 18:39:35,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 18:39:35,671 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:39:35,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:39:35,672 INFO L85 PathProgramCache]: Analyzing trace with hash -2081262812, now seen corresponding path program 1 times [2025-01-09 18:39:35,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:39:35,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332950876] [2025-01-09 18:39:35,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:35,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:39:36,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 202 statements into 1 equivalence classes. [2025-01-09 18:39:36,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 202 of 202 statements. [2025-01-09 18:39:36,962 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:36,962 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:38,029 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2025-01-09 18:39:38,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:39:38,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332950876] [2025-01-09 18:39:38,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332950876] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 18:39:38,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936370581] [2025-01-09 18:39:38,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:38,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 18:39:38,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 18:39:38,033 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 18:39:38,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 18:39:40,054 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 202 statements into 1 equivalence classes. [2025-01-09 18:39:41,642 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 202 of 202 statements. [2025-01-09 18:39:41,642 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:41,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:41,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 5474 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-01-09 18:39:41,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 18:39:41,983 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2025-01-09 18:39:41,983 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 18:39:43,491 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2025-01-09 18:39:43,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936370581] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 18:39:43,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 18:39:43,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2025-01-09 18:39:43,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072131574] [2025-01-09 18:39:43,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 18:39:43,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 18:39:43,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:39:43,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 18:39:43,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2025-01-09 18:39:43,495 INFO L87 Difference]: Start difference. First operand 20318 states and 29445 transitions. Second operand has 13 states, 11 states have (on average 8.818181818181818) internal successors, (97), 13 states have internal predecessors, (97), 4 states have call successors, (30), 2 states have call predecessors, (30), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2025-01-09 18:39:44,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:39:44,654 INFO L93 Difference]: Finished difference Result 40637 states and 58891 transitions. [2025-01-09 18:39:44,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-09 18:39:44,655 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.818181818181818) internal successors, (97), 13 states have internal predecessors, (97), 4 states have call successors, (30), 2 states have call predecessors, (30), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 202 [2025-01-09 18:39:44,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:39:44,763 INFO L225 Difference]: With dead ends: 40637 [2025-01-09 18:39:44,763 INFO L226 Difference]: Without dead ends: 20330 [2025-01-09 18:39:44,823 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 397 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2025-01-09 18:39:44,823 INFO L435 NwaCegarLoop]: 1971 mSDtfsCounter, 11 mSDsluCounter, 11809 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 13780 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 18:39:44,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 13780 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 18:39:44,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20330 states. [2025-01-09 18:39:45,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20330 to 20330. [2025-01-09 18:39:45,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20330 states, 14177 states have (on average 1.3549411017845807) internal successors, (19209), 14583 states have internal predecessors, (19209), 5134 states have call successors, (5134), 1026 states have call predecessors, (5134), 1018 states have return successors, (5114), 5056 states have call predecessors, (5114), 5114 states have call successors, (5114) [2025-01-09 18:39:45,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20330 states to 20330 states and 29457 transitions. [2025-01-09 18:39:45,476 INFO L78 Accepts]: Start accepts. Automaton has 20330 states and 29457 transitions. Word has length 202 [2025-01-09 18:39:45,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:39:45,477 INFO L471 AbstractCegarLoop]: Abstraction has 20330 states and 29457 transitions. [2025-01-09 18:39:45,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.818181818181818) internal successors, (97), 13 states have internal predecessors, (97), 4 states have call successors, (30), 2 states have call predecessors, (30), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2025-01-09 18:39:45,478 INFO L276 IsEmpty]: Start isEmpty. Operand 20330 states and 29457 transitions. [2025-01-09 18:39:45,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2025-01-09 18:39:45,480 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:39:45,481 INFO L218 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:39:45,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-09 18:39:45,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 18:39:45,685 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:39:45,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:39:45,687 INFO L85 PathProgramCache]: Analyzing trace with hash -241907259, now seen corresponding path program 2 times [2025-01-09 18:39:45,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:39:45,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16785532] [2025-01-09 18:39:45,687 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 18:39:45,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:39:46,923 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 207 statements into 2 equivalence classes. [2025-01-09 18:39:47,403 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 73 of 207 statements. [2025-01-09 18:39:47,403 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 18:39:47,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:50,129 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2025-01-09 18:39:50,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:39:50,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16785532] [2025-01-09 18:39:50,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16785532] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:39:50,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:39:50,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-01-09 18:39:50,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399643145] [2025-01-09 18:39:50,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:39:50,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 18:39:50,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:39:50,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 18:39:50,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2025-01-09 18:39:50,132 INFO L87 Difference]: Start difference. First operand 20330 states and 29457 transitions. Second operand has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 10 states have internal predecessors, (64), 4 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2025-01-09 18:39:52,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:39:52,894 INFO L93 Difference]: Finished difference Result 55813 states and 80944 transitions. [2025-01-09 18:39:52,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-09 18:39:52,895 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 10 states have internal predecessors, (64), 4 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 207 [2025-01-09 18:39:52,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:39:53,139 INFO L225 Difference]: With dead ends: 55813 [2025-01-09 18:39:53,139 INFO L226 Difference]: Without dead ends: 35530 [2025-01-09 18:39:53,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2025-01-09 18:39:53,221 INFO L435 NwaCegarLoop]: 1961 mSDtfsCounter, 1977 mSDsluCounter, 21491 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1985 SdHoareTripleChecker+Valid, 23452 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-01-09 18:39:53,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1985 Valid, 23452 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-01-09 18:39:53,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35530 states. [2025-01-09 18:39:54,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35530 to 35336. [2025-01-09 18:39:54,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35336 states, 24638 states have (on average 1.3558324539329492) internal successors, (33405), 25351 states have internal predecessors, (33405), 8921 states have call successors, (8921), 1772 states have call predecessors, (8921), 1776 states have return successors, (8957), 8800 states have call predecessors, (8957), 8901 states have call successors, (8957) [2025-01-09 18:39:54,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35336 states to 35336 states and 51283 transitions. [2025-01-09 18:39:54,541 INFO L78 Accepts]: Start accepts. Automaton has 35336 states and 51283 transitions. Word has length 207 [2025-01-09 18:39:54,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:39:54,541 INFO L471 AbstractCegarLoop]: Abstraction has 35336 states and 51283 transitions. [2025-01-09 18:39:54,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 10 states have internal predecessors, (64), 4 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2025-01-09 18:39:54,541 INFO L276 IsEmpty]: Start isEmpty. Operand 35336 states and 51283 transitions. [2025-01-09 18:39:54,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2025-01-09 18:39:54,546 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:39:54,547 INFO L218 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:39:54,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 18:39:54,548 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:39:54,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:39:54,548 INFO L85 PathProgramCache]: Analyzing trace with hash -2067073681, now seen corresponding path program 1 times [2025-01-09 18:39:54,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:39:54,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688757085] [2025-01-09 18:39:54,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:54,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:39:55,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 226 statements into 1 equivalence classes. [2025-01-09 18:39:55,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 226 of 226 statements. [2025-01-09 18:39:56,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:56,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:56,470 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2025-01-09 18:39:56,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:39:56,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688757085] [2025-01-09 18:39:56,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688757085] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:39:56,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:39:56,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 18:39:56,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698629233] [2025-01-09 18:39:56,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:39:56,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 18:39:56,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:39:56,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 18:39:56,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:39:56,474 INFO L87 Difference]: Start difference. First operand 35336 states and 51283 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 18:40:00,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 18:40:01,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:40:01,341 INFO L93 Difference]: Finished difference Result 70632 states and 102514 transitions. [2025-01-09 18:40:01,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 18:40:01,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 226 [2025-01-09 18:40:01,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:40:01,538 INFO L225 Difference]: With dead ends: 70632 [2025-01-09 18:40:01,538 INFO L226 Difference]: Without dead ends: 35343 [2025-01-09 18:40:01,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:40:01,652 INFO L435 NwaCegarLoop]: 3770 mSDtfsCounter, 1872 mSDsluCounter, 1966 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1872 SdHoareTripleChecker+Valid, 5736 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-01-09 18:40:01,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1872 Valid, 5736 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2025-01-09 18:40:01,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35343 states. [2025-01-09 18:40:02,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35343 to 35317. [2025-01-09 18:40:02,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35317 states, 24619 states have (on average 1.3554571672285634) internal successors, (33370), 25334 states have internal predecessors, (33370), 8921 states have call successors, (8921), 1772 states have call predecessors, (8921), 1776 states have return successors, (8957), 8798 states have call predecessors, (8957), 8901 states have call successors, (8957) [2025-01-09 18:40:02,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35317 states to 35317 states and 51248 transitions. [2025-01-09 18:40:02,773 INFO L78 Accepts]: Start accepts. Automaton has 35317 states and 51248 transitions. Word has length 226 [2025-01-09 18:40:02,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:40:02,774 INFO L471 AbstractCegarLoop]: Abstraction has 35317 states and 51248 transitions. [2025-01-09 18:40:02,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 18:40:02,774 INFO L276 IsEmpty]: Start isEmpty. Operand 35317 states and 51248 transitions. [2025-01-09 18:40:02,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2025-01-09 18:40:02,778 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:40:02,778 INFO L218 NwaCegarLoop]: trace histogram [10, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:40:02,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 18:40:02,778 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:40:02,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:40:02,779 INFO L85 PathProgramCache]: Analyzing trace with hash -783339228, now seen corresponding path program 1 times [2025-01-09 18:40:02,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:40:02,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730649216] [2025-01-09 18:40:02,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:40:02,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:40:04,379 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 228 statements into 1 equivalence classes. [2025-01-09 18:40:04,452 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 228 of 228 statements. [2025-01-09 18:40:04,452 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:40:04,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:40:05,573 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2025-01-09 18:40:05,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:40:05,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730649216] [2025-01-09 18:40:05,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730649216] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 18:40:05,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565112652] [2025-01-09 18:40:05,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:40:05,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 18:40:05,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 18:40:05,576 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 18:40:05,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 18:40:07,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 228 statements into 1 equivalence classes. [2025-01-09 18:40:07,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 228 of 228 statements. [2025-01-09 18:40:07,976 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:40:07,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:40:08,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 5618 conjuncts, 89 conjuncts are in the unsatisfiable core [2025-01-09 18:40:08,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 18:40:11,538 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2025-01-09 18:40:11,538 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 18:40:11,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565112652] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:40:11,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 18:40:11,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [8] total 28 [2025-01-09 18:40:11,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572284120] [2025-01-09 18:40:11,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:40:11,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-01-09 18:40:11,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:40:11,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-01-09 18:40:11,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2025-01-09 18:40:11,540 INFO L87 Difference]: Start difference. First operand 35317 states and 51248 transitions. Second operand has 22 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 17 states have internal predecessors, (74), 7 states have call successors, (23), 3 states have call predecessors, (23), 8 states have return successors, (22), 9 states have call predecessors, (22), 7 states have call successors, (22)