/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 19:30:39,656 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 19:30:39,719 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-01 19:30:39,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 19:30:39,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 19:30:39,751 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 19:30:39,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 19:30:39,753 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 19:30:39,753 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 19:30:39,754 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 19:30:39,754 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 19:30:39,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 19:30:39,755 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 19:30:39,755 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 19:30:39,755 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 19:30:39,756 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 19:30:39,756 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 19:30:39,758 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 19:30:39,758 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 19:30:39,758 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 19:30:39,761 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 19:30:39,761 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 19:30:39,761 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 19:30:39,761 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 19:30:39,762 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 19:30:39,762 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 19:30:39,762 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 19:30:39,762 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 19:30:39,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 19:30:39,763 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 19:30:39,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 19:30:39,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 19:30:39,763 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 19:30:39,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 19:30:39,763 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 19:30:39,764 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 19:30:39,764 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 19:30:39,764 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 19:30:39,765 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 19:30:39,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 19:30:39,765 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 19:30:39,766 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 19:30:39,766 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-01 19:30:40,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 19:30:40,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 19:30:40,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 19:30:40,082 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 19:30:40,082 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 19:30:40,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2024-11-01 19:30:41,761 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 19:30:42,148 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 19:30:42,149 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2024-11-01 19:30:42,180 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ddec9b14/ed85fd9ab7e1496b94a2b765059ae78c/FLAGdddb977a9 [2024-11-01 19:30:42,190 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ddec9b14/ed85fd9ab7e1496b94a2b765059ae78c [2024-11-01 19:30:42,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 19:30:42,193 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 19:30:42,194 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 19:30:42,194 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 19:30:42,201 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 19:30:42,202 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 07:30:42" (1/1) ... [2024-11-01 19:30:42,203 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@474c7b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:30:42, skipping insertion in model container [2024-11-01 19:30:42,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 07:30:42" (1/1) ... [2024-11-01 19:30:42,274 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 19:30:42,901 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 19:30:42,902 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 19:30:42,961 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 19:30:42,962 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 19:30:42,966 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 19:30:42,967 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 19:30:42,967 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 19:30:42,967 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 19:30:42,967 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 19:30:42,968 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 19:30:42,970 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 19:30:42,970 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 19:30:42,971 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 19:30:42,991 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i[120162,120175] [2024-11-01 19:30:43,037 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 19:30:43,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 19:30:43,063 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 19:30:43,140 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3119] [2024-11-01 19:30:43,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [3126] [2024-11-01 19:30:43,143 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3134-3135] [2024-11-01 19:30:43,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3143-3144] [2024-11-01 19:30:43,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [3164] [2024-11-01 19:30:43,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [3172] [2024-11-01 19:30:43,186 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (buf + ofs), "i" (1UL)); [3673-3674] [2024-11-01 19:30:43,191 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (uarg.i): "ebx"); [3734] [2024-11-01 19:30:43,192 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (uarg.i): "ebx"); [3737] [2024-11-01 19:30:43,192 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (uarg.i): "ebx"); [3740] [2024-11-01 19:30:43,194 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (uarg.i): "ebx"); [3743] [2024-11-01 19:30:43,194 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (uarg.i): "ebx"); [3746] [2024-11-01 19:30:43,196 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (uarg.i): "ebx"); [3757-3758] [2024-11-01 19:30:43,197 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (uarg.i): "ebx"); [3761-3762] [2024-11-01 19:30:43,197 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (uarg.i): "ebx"); [3765-3766] [2024-11-01 19:30:43,197 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (uarg.i): "ebx"); [3769-3770] [2024-11-01 19:30:43,198 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (uarg.i): "ebx"); [3773-3774] [2024-11-01 19:30:43,198 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (uarg.i), "i" (4UL)); [3785-3786] [2024-11-01 19:30:43,204 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___0), "=r" (__val_gu___0): "0" (uarg.i), "i" (4UL)); [3823-3824] [2024-11-01 19:30:43,205 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (uarg.i): "ebx"); [3837-3838] [2024-11-01 19:30:43,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (uarg.i): "ebx"); [3841-3842] [2024-11-01 19:30:43,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (uarg.i): "ebx"); [3845-3846] [2024-11-01 19:30:43,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (uarg.i): "ebx"); [3849-3850] [2024-11-01 19:30:43,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (uarg.i): "ebx"); [3853-3854] [2024-11-01 19:30:43,241 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i[120162,120175] [2024-11-01 19:30:43,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 19:30:43,302 INFO L204 MainTranslator]: Completed translation [2024-11-01 19:30:43,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:30:43 WrapperNode [2024-11-01 19:30:43,304 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 19:30:43,306 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 19:30:43,307 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 19:30:43,307 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 19:30:43,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:30:43" (1/1) ... [2024-11-01 19:30:43,352 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:30:43" (1/1) ... [2024-11-01 19:30:43,461 INFO L138 Inliner]: procedures = 105, calls = 407, calls flagged for inlining = 31, calls inlined = 28, statements flattened = 1200 [2024-11-01 19:30:43,462 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 19:30:43,463 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 19:30:43,463 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 19:30:43,463 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 19:30:43,470 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:30:43" (1/1) ... [2024-11-01 19:30:43,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:30:43" (1/1) ... [2024-11-01 19:30:43,484 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:30:43" (1/1) ... [2024-11-01 19:30:43,533 INFO L175 MemorySlicer]: Split 104 memory accesses to 11 slices as follows [0, 2, 9, 3, 8, 2, 34, 29, 13, 1, 3]. 33 percent of accesses are in the largest equivalence class. The 40 initializations are split as follows [0, 2, 0, 3, 0, 0, 34, 0, 0, 0, 1]. The 50 writes are split as follows [0, 0, 2, 0, 4, 1, 0, 29, 12, 1, 1]. [2024-11-01 19:30:43,533 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:30:43" (1/1) ... [2024-11-01 19:30:43,533 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:30:43" (1/1) ... [2024-11-01 19:30:43,564 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:30:43" (1/1) ... [2024-11-01 19:30:43,572 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:30:43" (1/1) ... [2024-11-01 19:30:43,581 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:30:43" (1/1) ... [2024-11-01 19:30:43,588 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:30:43" (1/1) ... [2024-11-01 19:30:43,600 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 19:30:43,601 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 19:30:43,601 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 19:30:43,602 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 19:30:43,602 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:30:43" (1/1) ... [2024-11-01 19:30:43,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 19:30:43,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 19:30:43,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-01 19:30:43,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-01 19:30:43,677 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_stop [2024-11-01 19:30:43,677 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_stop [2024-11-01 19:30:43,677 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_write [2024-11-01 19:30:43,677 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_write [2024-11-01 19:30:43,677 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_update_timeout [2024-11-01 19:30:43,677 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_update_timeout [2024-11-01 19:30:43,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2024-11-01 19:30:43,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2024-11-01 19:30:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2024-11-01 19:30:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#3 [2024-11-01 19:30:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#4 [2024-11-01 19:30:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#5 [2024-11-01 19:30:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#6 [2024-11-01 19:30:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#7 [2024-11-01 19:30:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#8 [2024-11-01 19:30:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#9 [2024-11-01 19:30:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#10 [2024-11-01 19:30:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-01 19:30:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-01 19:30:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-01 19:30:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-01 19:30:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-01 19:30:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-01 19:30:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-01 19:30:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-01 19:30:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-01 19:30:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-01 19:30:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-01 19:30:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-01 19:30:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-01 19:30:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-01 19:30:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-01 19:30:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-01 19:30:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-01 19:30:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-01 19:30:43,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-01 19:30:43,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-01 19:30:43,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-01 19:30:43,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-01 19:30:43,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-01 19:30:43,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-01 19:30:43,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-01 19:30:43,680 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-01 19:30:43,680 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_round_time [2024-11-01 19:30:43,680 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_round_time [2024-11-01 19:30:43,680 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_reboot_notifier [2024-11-01 19:30:43,680 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_reboot_notifier [2024-11-01 19:30:43,680 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-01 19:30:43,680 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-01 19:30:43,680 INFO L130 BoogieDeclarations]: Found specification of procedure superio_exit [2024-11-01 19:30:43,681 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_exit [2024-11-01 19:30:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-11-01 19:30:43,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-11-01 19:30:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-01 19:30:43,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-01 19:30:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure superio_select [2024-11-01 19:30:43,681 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_select [2024-11-01 19:30:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-01 19:30:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-01 19:30:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-01 19:30:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-01 19:30:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-01 19:30:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#5 [2024-11-01 19:30:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#6 [2024-11-01 19:30:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#7 [2024-11-01 19:30:43,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#8 [2024-11-01 19:30:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#9 [2024-11-01 19:30:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#10 [2024-11-01 19:30:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-01 19:30:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-01 19:30:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#2 [2024-11-01 19:30:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#3 [2024-11-01 19:30:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#4 [2024-11-01 19:30:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#5 [2024-11-01 19:30:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#6 [2024-11-01 19:30:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#7 [2024-11-01 19:30:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#8 [2024-11-01 19:30:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#9 [2024-11-01 19:30:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#10 [2024-11-01 19:30:43,682 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-01 19:30:43,682 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-01 19:30:43,683 INFO L130 BoogieDeclarations]: Found specification of procedure superio_enter [2024-11-01 19:30:43,683 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_enter [2024-11-01 19:30:43,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-01 19:30:43,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-01 19:30:43,683 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-01 19:30:43,683 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-01 19:30:43,683 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_keepalive [2024-11-01 19:30:43,683 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_keepalive [2024-11-01 19:30:43,683 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inb [2024-11-01 19:30:43,683 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inb [2024-11-01 19:30:43,683 INFO L130 BoogieDeclarations]: Found specification of procedure superio_outb [2024-11-01 19:30:43,683 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_outb [2024-11-01 19:30:43,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-01 19:30:43,683 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-01 19:30:43,684 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-01 19:30:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-01 19:30:43,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-01 19:30:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 19:30:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inw [2024-11-01 19:30:43,684 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inw [2024-11-01 19:30:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure superio_outw [2024-11-01 19:30:43,684 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_outw [2024-11-01 19:30:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-01 19:30:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-01 19:30:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-01 19:30:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-01 19:30:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-01 19:30:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-01 19:30:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-01 19:30:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-01 19:30:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-01 19:30:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-01 19:30:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-01 19:30:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-01 19:30:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-01 19:30:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-01 19:30:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-01 19:30:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-01 19:30:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-01 19:30:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-01 19:30:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-01 19:30:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-01 19:30:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-01 19:30:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-01 19:30:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-01 19:30:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#0 [2024-11-01 19:30:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#1 [2024-11-01 19:30:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#2 [2024-11-01 19:30:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#3 [2024-11-01 19:30:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#4 [2024-11-01 19:30:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#5 [2024-11-01 19:30:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#6 [2024-11-01 19:30:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#7 [2024-11-01 19:30:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#8 [2024-11-01 19:30:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#9 [2024-11-01 19:30:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#10 [2024-11-01 19:30:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-01 19:30:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-01 19:30:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-01 19:30:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-01 19:30:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-01 19:30:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-01 19:30:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-01 19:30:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-01 19:30:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-01 19:30:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-01 19:30:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-01 19:30:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-11-01 19:30:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-01 19:30:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-01 19:30:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-01 19:30:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-01 19:30:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-01 19:30:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-01 19:30:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-01 19:30:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-01 19:30:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-01 19:30:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-01 19:30:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-01 19:30:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-01 19:30:43,688 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-01 19:30:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 19:30:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-01 19:30:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-01 19:30:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-01 19:30:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-01 19:30:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-01 19:30:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-01 19:30:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-01 19:30:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-01 19:30:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-01 19:30:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-01 19:30:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-01 19:30:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-01 19:30:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-01 19:30:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-01 19:30:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-01 19:30:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-01 19:30:43,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-01 19:30:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-11-01 19:30:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2024-11-01 19:30:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2024-11-01 19:30:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2024-11-01 19:30:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#0 [2024-11-01 19:30:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#1 [2024-11-01 19:30:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#2 [2024-11-01 19:30:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#3 [2024-11-01 19:30:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#4 [2024-11-01 19:30:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#5 [2024-11-01 19:30:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#6 [2024-11-01 19:30:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#7 [2024-11-01 19:30:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#8 [2024-11-01 19:30:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#9 [2024-11-01 19:30:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#10 [2024-11-01 19:30:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2024-11-01 19:30:43,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2024-11-01 19:30:43,690 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_start [2024-11-01 19:30:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_start [2024-11-01 19:30:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-01 19:30:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-01 19:30:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-01 19:30:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-01 19:30:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-01 19:30:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-01 19:30:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2024-11-01 19:30:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2024-11-01 19:30:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2024-11-01 19:30:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2024-11-01 19:30:43,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 19:30:43,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 19:30:44,020 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 19:30:44,024 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 19:30:44,170 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-01 19:30:52,491 INFO L? ?]: Removed 480 outVars from TransFormulas that were not future-live. [2024-11-01 19:30:52,492 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 19:30:52,509 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 19:30:52,509 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-01 19:30:52,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 07:30:52 BoogieIcfgContainer [2024-11-01 19:30:52,510 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 19:30:52,512 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 19:30:52,512 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 19:30:52,514 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 19:30:52,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 07:30:42" (1/3) ... [2024-11-01 19:30:52,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88f18ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 07:30:52, skipping insertion in model container [2024-11-01 19:30:52,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:30:43" (2/3) ... [2024-11-01 19:30:52,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@88f18ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 07:30:52, skipping insertion in model container [2024-11-01 19:30:52,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 07:30:52" (3/3) ... [2024-11-01 19:30:52,515 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2024-11-01 19:30:52,526 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 19:30:52,527 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 19:30:52,576 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 19:30:52,581 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;@364bfb96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 19:30:52,581 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 19:30:52,586 INFO L276 IsEmpty]: Start isEmpty. Operand has 590 states, 367 states have (on average 1.3923705722070845) internal successors, (511), 400 states have internal predecessors, (511), 191 states have call successors, (191), 31 states have call predecessors, (191), 30 states have return successors, (187), 182 states have call predecessors, (187), 187 states have call successors, (187) [2024-11-01 19:30:52,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-01 19:30:52,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:30:52,599 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 19:30:52,600 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:30:52,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:30:52,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1201237634, now seen corresponding path program 1 times [2024-11-01 19:30:52,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:30:52,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [178172551] [2024-11-01 19:30:52,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:30:52,611 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:30:52,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:30:52,627 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:30:52,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-01 19:30:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:30:53,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-01 19:30:53,170 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:30:53,195 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-01 19:30:53,195 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:30:54,084 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-01 19:30:54,085 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:30:54,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [178172551] [2024-11-01 19:30:54,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [178172551] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 19:30:54,085 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 19:30:54,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-01 19:30:54,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629842936] [2024-11-01 19:30:54,088 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 19:30:54,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-01 19:30:54,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:30:54,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-01 19:30:54,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-01 19:30:54,117 INFO L87 Difference]: Start difference. First operand has 590 states, 367 states have (on average 1.3923705722070845) internal successors, (511), 400 states have internal predecessors, (511), 191 states have call successors, (191), 31 states have call predecessors, (191), 30 states have return successors, (187), 182 states have call predecessors, (187), 187 states have call successors, (187) Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-01 19:30:54,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:30:54,194 INFO L93 Difference]: Finished difference Result 1175 states and 1803 transitions. [2024-11-01 19:30:54,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-01 19:30:54,196 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 137 [2024-11-01 19:30:54,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:30:54,207 INFO L225 Difference]: With dead ends: 1175 [2024-11-01 19:30:54,207 INFO L226 Difference]: Without dead ends: 579 [2024-11-01 19:30:54,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-01 19:30:54,219 INFO L432 NwaCegarLoop]: 885 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, 885 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-01 19:30:54,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-01 19:30:54,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-01 19:30:54,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2024-11-01 19:30:54,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 362 states have (on average 1.3784530386740332) internal successors, (499), 389 states have internal predecessors, (499), 187 states have call successors, (187), 30 states have call predecessors, (187), 29 states have return successors, (186), 181 states have call predecessors, (186), 186 states have call successors, (186) [2024-11-01 19:30:54,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 872 transitions. [2024-11-01 19:30:54,300 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 872 transitions. Word has length 137 [2024-11-01 19:30:54,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:30:54,300 INFO L471 AbstractCegarLoop]: Abstraction has 579 states and 872 transitions. [2024-11-01 19:30:54,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-01 19:30:54,301 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 872 transitions. [2024-11-01 19:30:54,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-01 19:30:54,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:30:54,304 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 19:30:54,312 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-01 19:30:54,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:30:54,506 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:30:54,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:30:54,506 INFO L85 PathProgramCache]: Analyzing trace with hash -2139712646, now seen corresponding path program 1 times [2024-11-01 19:30:54,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:30:54,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2542123] [2024-11-01 19:30:54,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:30:54,507 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:30:54,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:30:54,509 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:30:54,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-01 19:30:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:30:54,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-01 19:30:54,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:30:55,129 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-01 19:30:55,129 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:30:56,127 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-01 19:30:56,128 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:30:56,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2542123] [2024-11-01 19:30:56,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2542123] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-01 19:30:56,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-01 19:30:56,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-01 19:30:56,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234212363] [2024-11-01 19:30:56,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-01 19:30:56,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-01 19:30:56,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:30:56,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-01 19:30:56,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-01 19:30:56,136 INFO L87 Difference]: Start difference. First operand 579 states and 872 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-01 19:30:56,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:30:56,349 INFO L93 Difference]: Finished difference Result 1150 states and 1737 transitions. [2024-11-01 19:30:56,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 19:30:56,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2024-11-01 19:30:56,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:30:56,353 INFO L225 Difference]: With dead ends: 1150 [2024-11-01 19:30:56,353 INFO L226 Difference]: Without dead ends: 580 [2024-11-01 19:30:56,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-01 19:30:56,356 INFO L432 NwaCegarLoop]: 870 mSDtfsCounter, 0 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2596 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-01 19:30:56,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2596 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-01 19:30:56,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-01 19:30:56,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2024-11-01 19:30:56,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 363 states have (on average 1.3774104683195592) internal successors, (500), 390 states have internal predecessors, (500), 187 states have call successors, (187), 30 states have call predecessors, (187), 29 states have return successors, (186), 181 states have call predecessors, (186), 186 states have call successors, (186) [2024-11-01 19:30:56,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 873 transitions. [2024-11-01 19:30:56,378 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 873 transitions. Word has length 137 [2024-11-01 19:30:56,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:30:56,379 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 873 transitions. [2024-11-01 19:30:56,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-01 19:30:56,379 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 873 transitions. [2024-11-01 19:30:56,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-01 19:30:56,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:30:56,381 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 19:30:56,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-01 19:30:56,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:30:56,586 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:30:56,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:30:56,587 INFO L85 PathProgramCache]: Analyzing trace with hash 2142592682, now seen corresponding path program 1 times [2024-11-01 19:30:56,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:30:56,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [761573860] [2024-11-01 19:30:56,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:30:56,588 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:30:56,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:30:56,590 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:30:56,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-01 19:30:57,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:30:57,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-01 19:30:57,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:30:57,303 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 40 proven. 1 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2024-11-01 19:30:57,303 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:30:58,672 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-11-01 19:30:58,673 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:30:58,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [761573860] [2024-11-01 19:30:58,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [761573860] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 19:30:58,673 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 19:30:58,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-01 19:30:58,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792822265] [2024-11-01 19:30:58,673 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 19:30:58,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-01 19:30:58,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:30:58,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-01 19:30:58,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-01 19:30:58,675 INFO L87 Difference]: Start difference. First operand 580 states and 873 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-01 19:30:59,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:30:59,844 INFO L93 Difference]: Finished difference Result 1161 states and 1755 transitions. [2024-11-01 19:30:59,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-01 19:30:59,846 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 143 [2024-11-01 19:30:59,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:30:59,853 INFO L225 Difference]: With dead ends: 1161 [2024-11-01 19:30:59,853 INFO L226 Difference]: Without dead ends: 590 [2024-11-01 19:30:59,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-01 19:30:59,857 INFO L432 NwaCegarLoop]: 868 mSDtfsCounter, 4 mSDsluCounter, 5164 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6032 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-01 19:30:59,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6032 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-01 19:30:59,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-11-01 19:30:59,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 590. [2024-11-01 19:30:59,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 372 states have (on average 1.3763440860215055) internal successors, (512), 399 states have internal predecessors, (512), 187 states have call successors, (187), 31 states have call predecessors, (187), 30 states have return successors, (186), 181 states have call predecessors, (186), 186 states have call successors, (186) [2024-11-01 19:30:59,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 885 transitions. [2024-11-01 19:30:59,891 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 885 transitions. Word has length 143 [2024-11-01 19:30:59,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:30:59,892 INFO L471 AbstractCegarLoop]: Abstraction has 590 states and 885 transitions. [2024-11-01 19:30:59,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-01 19:30:59,892 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 885 transitions. [2024-11-01 19:30:59,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-01 19:30:59,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:30:59,896 INFO L215 NwaCegarLoop]: trace histogram [20, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 19:30:59,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0 [2024-11-01 19:31:00,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:31:00,099 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:31:00,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:31:00,100 INFO L85 PathProgramCache]: Analyzing trace with hash 785478458, now seen corresponding path program 2 times [2024-11-01 19:31:00,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:31:00,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1907792154] [2024-11-01 19:31:00,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:31:00,100 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:31:00,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:31:00,105 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:31:00,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-01 19:31:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:31:00,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-01 19:31:00,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:31:01,299 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 125 proven. 10 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-01 19:31:01,299 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:31:03,311 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-11-01 19:31:03,311 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:31:03,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1907792154] [2024-11-01 19:31:03,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1907792154] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 19:31:03,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 19:31:03,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-01 19:31:03,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438231680] [2024-11-01 19:31:03,312 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 19:31:03,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-01 19:31:03,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:31:03,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-01 19:31:03,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-11-01 19:31:03,313 INFO L87 Difference]: Start difference. First operand 590 states and 885 transitions. Second operand has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-01 19:31:05,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:31:05,590 INFO L93 Difference]: Finished difference Result 1180 states and 1779 transitions. [2024-11-01 19:31:05,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-01 19:31:05,591 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 157 [2024-11-01 19:31:05,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:31:05,597 INFO L225 Difference]: With dead ends: 1180 [2024-11-01 19:31:05,597 INFO L226 Difference]: Without dead ends: 596 [2024-11-01 19:31:05,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=144, Invalid=276, Unknown=0, NotChecked=0, Total=420 [2024-11-01 19:31:05,600 INFO L432 NwaCegarLoop]: 868 mSDtfsCounter, 5 mSDsluCounter, 5166 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6034 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-01 19:31:05,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6034 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-01 19:31:05,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-11-01 19:31:05,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2024-11-01 19:31:05,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 378 states have (on average 1.373015873015873) internal successors, (519), 405 states have internal predecessors, (519), 187 states have call successors, (187), 31 states have call predecessors, (187), 30 states have return successors, (186), 181 states have call predecessors, (186), 186 states have call successors, (186) [2024-11-01 19:31:05,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 892 transitions. [2024-11-01 19:31:05,621 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 892 transitions. Word has length 157 [2024-11-01 19:31:05,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:31:05,621 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 892 transitions. [2024-11-01 19:31:05,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-01 19:31:05,622 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 892 transitions. [2024-11-01 19:31:05,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-01 19:31:05,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:31:05,624 INFO L215 NwaCegarLoop]: trace histogram [36, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 19:31:05,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Ended with exit code 0 [2024-11-01 19:31:05,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:31:05,827 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:31:05,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:31:05,827 INFO L85 PathProgramCache]: Analyzing trace with hash 574231354, now seen corresponding path program 3 times [2024-11-01 19:31:05,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:31:05,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1256979272] [2024-11-01 19:31:05,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:31:05,828 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:31:05,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:31:05,829 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:31:05,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process [2024-11-01 19:31:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:31:06,343 INFO L255 TraceCheckSpWp]: Trace formula consists of 1218 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-01 19:31:06,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:31:06,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 537 proven. 3 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2024-11-01 19:31:06,665 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:31:08,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 60 proven. 75 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2024-11-01 19:31:08,046 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:31:08,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1256979272] [2024-11-01 19:31:08,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1256979272] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 19:31:08,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 19:31:08,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-01 19:31:08,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650677189] [2024-11-01 19:31:08,047 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 19:31:08,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-01 19:31:08,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:31:08,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-01 19:31:08,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-01 19:31:08,048 INFO L87 Difference]: Start difference. First operand 596 states and 892 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 2 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-01 19:31:08,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:31:08,975 INFO L93 Difference]: Finished difference Result 1182 states and 1769 transitions. [2024-11-01 19:31:08,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-01 19:31:08,976 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 2 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 173 [2024-11-01 19:31:08,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:31:08,979 INFO L225 Difference]: With dead ends: 1182 [2024-11-01 19:31:08,979 INFO L226 Difference]: Without dead ends: 596 [2024-11-01 19:31:08,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-01 19:31:08,982 INFO L432 NwaCegarLoop]: 865 mSDtfsCounter, 6 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4302 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-01 19:31:08,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4302 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-01 19:31:08,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-11-01 19:31:08,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2024-11-01 19:31:08,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 378 states have (on average 1.3624338624338623) internal successors, (515), 405 states have internal predecessors, (515), 187 states have call successors, (187), 31 states have call predecessors, (187), 30 states have return successors, (186), 181 states have call predecessors, (186), 186 states have call successors, (186) [2024-11-01 19:31:08,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 888 transitions. [2024-11-01 19:31:08,999 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 888 transitions. Word has length 173 [2024-11-01 19:31:08,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:31:08,999 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 888 transitions. [2024-11-01 19:31:08,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 2 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-01 19:31:08,999 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 888 transitions. [2024-11-01 19:31:09,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-01 19:31:09,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:31:09,002 INFO L215 NwaCegarLoop]: trace histogram [40, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 19:31:09,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Ended with exit code 0 [2024-11-01 19:31:09,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:31:09,203 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:31:09,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:31:09,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1768198906, now seen corresponding path program 4 times [2024-11-01 19:31:09,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:31:09,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060842473] [2024-11-01 19:31:09,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:31:09,206 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:31:09,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:31:09,207 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:31:09,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Waiting until timeout for monitored process [2024-11-01 19:31:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:31:09,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 1262 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-01 19:31:09,706 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:31:10,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1179 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1179 trivial. 0 not checked. [2024-11-01 19:31:10,090 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:31:11,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1179 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1179 trivial. 0 not checked. [2024-11-01 19:31:11,458 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:31:11,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060842473] [2024-11-01 19:31:11,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2060842473] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 19:31:11,458 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 19:31:11,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2024-11-01 19:31:11,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623414763] [2024-11-01 19:31:11,459 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 19:31:11,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-01 19:31:11,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:31:11,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-01 19:31:11,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-01 19:31:11,460 INFO L87 Difference]: Start difference. First operand 596 states and 888 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 10 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-01 19:31:15,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-01 19:31:19,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-01 19:31:20,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:31:20,548 INFO L93 Difference]: Finished difference Result 1167 states and 1752 transitions. [2024-11-01 19:31:20,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-01 19:31:20,549 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 10 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 1 states have call successors, (15) Word has length 177 [2024-11-01 19:31:20,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:31:20,554 INFO L225 Difference]: With dead ends: 1167 [2024-11-01 19:31:20,554 INFO L226 Difference]: Without dead ends: 616 [2024-11-01 19:31:20,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-01 19:31:20,557 INFO L432 NwaCegarLoop]: 870 mSDtfsCounter, 27 mSDsluCounter, 6051 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 6921 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-11-01 19:31:20,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 6921 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 85 Invalid, 2 Unknown, 0 Unchecked, 9.0s Time] [2024-11-01 19:31:20,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2024-11-01 19:31:20,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 603. [2024-11-01 19:31:20,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 384 states have (on average 1.3567708333333333) internal successors, (521), 411 states have internal predecessors, (521), 187 states have call successors, (187), 31 states have call predecessors, (187), 31 states have return successors, (194), 182 states have call predecessors, (194), 186 states have call successors, (194) [2024-11-01 19:31:20,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 902 transitions. [2024-11-01 19:31:20,598 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 902 transitions. Word has length 177 [2024-11-01 19:31:20,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:31:20,599 INFO L471 AbstractCegarLoop]: Abstraction has 603 states and 902 transitions. [2024-11-01 19:31:20,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 10 states have internal predecessors, (56), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (15), 3 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-01 19:31:20,599 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 902 transitions. [2024-11-01 19:31:20,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-01 19:31:20,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:31:20,600 INFO L215 NwaCegarLoop]: trace histogram [40, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 19:31:20,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Ended with exit code 0 [2024-11-01 19:31:20,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:31:20,804 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:31:20,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:31:20,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1825457208, now seen corresponding path program 1 times [2024-11-01 19:31:20,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:31:20,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1694514400] [2024-11-01 19:31:20,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:31:20,805 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:31:20,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:31:20,807 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:31:20,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Waiting until timeout for monitored process [2024-11-01 19:31:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:31:21,297 INFO L255 TraceCheckSpWp]: Trace formula consists of 1260 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 19:31:21,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:31:25,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1179 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1179 trivial. 0 not checked. [2024-11-01 19:31:25,074 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:31:27,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1179 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1179 trivial. 0 not checked. [2024-11-01 19:31:27,122 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:31:27,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1694514400] [2024-11-01 19:31:27,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1694514400] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 19:31:27,123 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 19:31:27,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2024-11-01 19:31:27,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426200062] [2024-11-01 19:31:27,123 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 19:31:27,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 19:31:27,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:31:27,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 19:31:27,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 19:31:27,124 INFO L87 Difference]: Start difference. First operand 603 states and 902 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-01 19:31:27,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:31:27,190 INFO L93 Difference]: Finished difference Result 1161 states and 1750 transitions. [2024-11-01 19:31:27,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 19:31:27,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 177 [2024-11-01 19:31:27,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:31:27,195 INFO L225 Difference]: With dead ends: 1161 [2024-11-01 19:31:27,195 INFO L226 Difference]: Without dead ends: 1082 [2024-11-01 19:31:27,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 19:31:27,196 INFO L432 NwaCegarLoop]: 970 mSDtfsCounter, 792 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-01 19:31:27,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 1802 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-01 19:31:27,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2024-11-01 19:31:27,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1082. [2024-11-01 19:31:27,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 694 states have (on average 1.3631123919308357) internal successors, (946), 739 states have internal predecessors, (946), 328 states have call successors, (328), 58 states have call predecessors, (328), 59 states have return successors, (341), 321 states have call predecessors, (341), 327 states have call successors, (341) [2024-11-01 19:31:27,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1615 transitions. [2024-11-01 19:31:27,229 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1615 transitions. Word has length 177 [2024-11-01 19:31:27,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:31:27,230 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1615 transitions. [2024-11-01 19:31:27,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-01 19:31:27,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1615 transitions. [2024-11-01 19:31:27,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-01 19:31:27,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:31:27,233 INFO L215 NwaCegarLoop]: trace histogram [40, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 19:31:27,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Ended with exit code 0 [2024-11-01 19:31:27,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:31:27,437 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:31:27,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:31:27,438 INFO L85 PathProgramCache]: Analyzing trace with hash 282174662, now seen corresponding path program 1 times [2024-11-01 19:31:27,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:31:27,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260648531] [2024-11-01 19:31:27,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:31:27,438 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:31:27,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:31:27,440 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:31:27,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (9)] Waiting until timeout for monitored process [2024-11-01 19:31:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:31:27,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 1395 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 19:31:28,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:31:28,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1196 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1193 trivial. 0 not checked. [2024-11-01 19:31:28,163 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:31:29,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1196 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1193 trivial. 0 not checked. [2024-11-01 19:31:29,901 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:31:29,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260648531] [2024-11-01 19:31:29,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1260648531] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 19:31:29,901 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 19:31:29,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-01 19:31:29,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182519320] [2024-11-01 19:31:29,901 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 19:31:29,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 19:31:29,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:31:29,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 19:31:29,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 19:31:29,903 INFO L87 Difference]: Start difference. First operand 1082 states and 1615 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-01 19:31:30,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:31:30,260 INFO L93 Difference]: Finished difference Result 2581 states and 3832 transitions. [2024-11-01 19:31:30,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 19:31:30,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 228 [2024-11-01 19:31:30,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:31:30,273 INFO L225 Difference]: With dead ends: 2581 [2024-11-01 19:31:30,273 INFO L226 Difference]: Without dead ends: 1544 [2024-11-01 19:31:30,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 19:31:30,278 INFO L432 NwaCegarLoop]: 931 mSDtfsCounter, 428 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1724 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-01 19:31:30,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 1724 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-01 19:31:30,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2024-11-01 19:31:30,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1522. [2024-11-01 19:31:30,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1522 states, 949 states have (on average 1.3498419388830347) internal successors, (1281), 1018 states have internal predecessors, (1281), 474 states have call successors, (474), 95 states have call predecessors, (474), 98 states have return successors, (493), 459 states have call predecessors, (493), 473 states have call successors, (493) [2024-11-01 19:31:30,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 2248 transitions. [2024-11-01 19:31:30,343 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 2248 transitions. Word has length 228 [2024-11-01 19:31:30,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:31:30,343 INFO L471 AbstractCegarLoop]: Abstraction has 1522 states and 2248 transitions. [2024-11-01 19:31:30,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-01 19:31:30,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 2248 transitions. [2024-11-01 19:31:30,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2024-11-01 19:31:30,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:31:30,351 INFO L215 NwaCegarLoop]: trace histogram [40, 17, 17, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 19:31:30,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (9)] Ended with exit code 0 [2024-11-01 19:31:30,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:31:30,554 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:31:30,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:31:30,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1388021079, now seen corresponding path program 1 times [2024-11-01 19:31:30,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:31:30,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2007812771] [2024-11-01 19:31:30,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:31:30,555 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:31:30,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:31:30,557 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:31:30,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (10)] Waiting until timeout for monitored process [2024-11-01 19:31:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:31:31,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 1896 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-01 19:31:31,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:31:31,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1823 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 1673 trivial. 0 not checked. [2024-11-01 19:31:31,924 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:31:37,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1823 backedges. 11 proven. 21 refuted. 0 times theorem prover too weak. 1791 trivial. 0 not checked. [2024-11-01 19:31:37,750 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:31:37,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2007812771] [2024-11-01 19:31:37,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2007812771] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-01 19:31:37,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-01 19:31:37,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-11-01 19:31:37,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893119948] [2024-11-01 19:31:37,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-01 19:31:37,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-01 19:31:37,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:31:37,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-01 19:31:37,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-01 19:31:37,753 INFO L87 Difference]: Start difference. First operand 1522 states and 2248 transitions. Second operand has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 5 states have internal predecessors, (152), 2 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-01 19:31:38,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:31:38,007 INFO L93 Difference]: Finished difference Result 3009 states and 4510 transitions. [2024-11-01 19:31:38,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-01 19:31:38,009 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 5 states have internal predecessors, (152), 2 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) Word has length 444 [2024-11-01 19:31:38,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:31:38,017 INFO L225 Difference]: With dead ends: 3009 [2024-11-01 19:31:38,017 INFO L226 Difference]: Without dead ends: 1542 [2024-11-01 19:31:38,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 886 GetRequests, 878 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-01 19:31:38,022 INFO L432 NwaCegarLoop]: 869 mSDtfsCounter, 0 mSDsluCounter, 3471 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4340 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-01 19:31:38,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4340 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-01 19:31:38,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2024-11-01 19:31:38,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 1542. [2024-11-01 19:31:38,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 965 states have (on average 1.344041450777202) internal successors, (1297), 1034 states have internal predecessors, (1297), 474 states have call successors, (474), 95 states have call predecessors, (474), 102 states have return successors, (505), 463 states have call predecessors, (505), 473 states have call successors, (505) [2024-11-01 19:31:38,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 2276 transitions. [2024-11-01 19:31:38,073 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 2276 transitions. Word has length 444 [2024-11-01 19:31:38,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:31:38,074 INFO L471 AbstractCegarLoop]: Abstraction has 1542 states and 2276 transitions. [2024-11-01 19:31:38,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 5 states have internal predecessors, (152), 2 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-01 19:31:38,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 2276 transitions. [2024-11-01 19:31:38,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-01 19:31:38,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:31:38,080 INFO L215 NwaCegarLoop]: trace histogram [40, 17, 17, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 19:31:38,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (10)] Ended with exit code 0 [2024-11-01 19:31:38,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:31:38,284 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:31:38,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:31:38,285 INFO L85 PathProgramCache]: Analyzing trace with hash 35192279, now seen corresponding path program 1 times [2024-11-01 19:31:38,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:31:38,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853700057] [2024-11-01 19:31:38,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:31:38,285 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:31:38,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:31:38,287 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:31:38,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (11)] Waiting until timeout for monitored process [2024-11-01 19:31:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:31:38,960 INFO L255 TraceCheckSpWp]: Trace formula consists of 1947 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-01 19:31:38,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:31:39,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1913 backedges. 439 proven. 0 refuted. 0 times theorem prover too weak. 1474 trivial. 0 not checked. [2024-11-01 19:31:39,248 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:31:44,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1913 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 1894 trivial. 0 not checked. [2024-11-01 19:31:44,331 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:31:44,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853700057] [2024-11-01 19:31:44,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [853700057] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-01 19:31:44,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-01 19:31:44,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-01 19:31:44,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480238766] [2024-11-01 19:31:44,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-01 19:31:44,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-01 19:31:44,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:31:44,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-01 19:31:44,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-01 19:31:44,333 INFO L87 Difference]: Start difference. First operand 1542 states and 2276 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 2 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (56), 3 states have call predecessors, (56), 2 states have call successors, (56) [2024-11-01 19:31:44,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:31:44,700 INFO L93 Difference]: Finished difference Result 3037 states and 4498 transitions. [2024-11-01 19:31:44,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-01 19:31:44,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 2 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (56), 3 states have call predecessors, (56), 2 states have call successors, (56) Word has length 462 [2024-11-01 19:31:44,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:31:44,709 INFO L225 Difference]: With dead ends: 3037 [2024-11-01 19:31:44,709 INFO L226 Difference]: Without dead ends: 1546 [2024-11-01 19:31:44,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 922 GetRequests, 916 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-01 19:31:44,714 INFO L432 NwaCegarLoop]: 871 mSDtfsCounter, 0 mSDsluCounter, 2596 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3467 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-01 19:31:44,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3467 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-01 19:31:44,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2024-11-01 19:31:44,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1544. [2024-11-01 19:31:44,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 967 states have (on average 1.343329886246122) internal successors, (1299), 1035 states have internal predecessors, (1299), 474 states have call successors, (474), 95 states have call predecessors, (474), 102 states have return successors, (503), 464 states have call predecessors, (503), 473 states have call successors, (503) [2024-11-01 19:31:44,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 2276 transitions. [2024-11-01 19:31:44,760 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 2276 transitions. Word has length 462 [2024-11-01 19:31:44,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:31:44,761 INFO L471 AbstractCegarLoop]: Abstraction has 1544 states and 2276 transitions. [2024-11-01 19:31:44,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 2 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (56), 3 states have call predecessors, (56), 2 states have call successors, (56) [2024-11-01 19:31:44,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 2276 transitions. [2024-11-01 19:31:44,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-11-01 19:31:44,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:31:44,768 INFO L215 NwaCegarLoop]: trace histogram [40, 21, 21, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 19:31:44,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (11)] Ended with exit code 0 [2024-11-01 19:31:44,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:31:44,968 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:31:44,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:31:44,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1398569634, now seen corresponding path program 2 times [2024-11-01 19:31:44,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:31:44,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286225185] [2024-11-01 19:31:44,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:31:44,970 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:31:44,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:31:44,971 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:31:44,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (12)] Waiting until timeout for monitored process [2024-11-01 19:31:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:31:45,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 1979 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-01 19:31:45,713 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:31:49,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2140 backedges. 335 proven. 32 refuted. 0 times theorem prover too weak. 1773 trivial. 0 not checked. [2024-11-01 19:31:49,364 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:31:56,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2140 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2127 trivial. 0 not checked. [2024-11-01 19:31:56,093 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:31:56,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286225185] [2024-11-01 19:31:56,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1286225185] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-01 19:31:56,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-01 19:31:56,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-01 19:31:56,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577877106] [2024-11-01 19:31:56,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-01 19:31:56,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-01 19:31:56,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:31:56,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-01 19:31:56,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-01 19:31:56,095 INFO L87 Difference]: Start difference. First operand 1544 states and 2276 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 4 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2024-11-01 19:31:57,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:31:57,121 INFO L93 Difference]: Finished difference Result 3253 states and 4863 transitions. [2024-11-01 19:31:57,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 19:31:57,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 4 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) Word has length 479 [2024-11-01 19:31:57,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:31:57,132 INFO L225 Difference]: With dead ends: 3253 [2024-11-01 19:31:57,132 INFO L226 Difference]: Without dead ends: 1764 [2024-11-01 19:31:57,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 957 GetRequests, 953 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-01 19:31:57,136 INFO L432 NwaCegarLoop]: 939 mSDtfsCounter, 922 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-01 19:31:57,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 1780 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-01 19:31:57,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2024-11-01 19:31:57,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1673. [2024-11-01 19:31:57,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1673 states, 1034 states have (on average 1.3433268858800773) internal successors, (1389), 1111 states have internal predecessors, (1389), 536 states have call successors, (536), 95 states have call predecessors, (536), 102 states have return successors, (569), 524 states have call predecessors, (569), 535 states have call successors, (569) [2024-11-01 19:31:57,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 2494 transitions. [2024-11-01 19:31:57,202 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 2494 transitions. Word has length 479 [2024-11-01 19:31:57,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:31:57,202 INFO L471 AbstractCegarLoop]: Abstraction has 1673 states and 2494 transitions. [2024-11-01 19:31:57,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 4 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2024-11-01 19:31:57,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 2494 transitions. [2024-11-01 19:31:57,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2024-11-01 19:31:57,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:31:57,207 INFO L215 NwaCegarLoop]: trace histogram [40, 21, 21, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 19:31:57,222 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (12)] Forceful destruction successful, exit code 0 [2024-11-01 19:31:57,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:31:57,411 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:31:57,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:31:57,411 INFO L85 PathProgramCache]: Analyzing trace with hash 813196748, now seen corresponding path program 1 times [2024-11-01 19:31:57,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:31:57,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [63445687] [2024-11-01 19:31:57,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:31:57,412 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:31:57,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:31:57,414 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:31:57,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (13)] Waiting until timeout for monitored process [2024-11-01 19:31:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:31:58,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 1979 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-01 19:31:58,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:31:58,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2104 backedges. 525 proven. 0 refuted. 0 times theorem prover too weak. 1579 trivial. 0 not checked. [2024-11-01 19:31:58,332 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:32:04,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2104 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2091 trivial. 0 not checked. [2024-11-01 19:32:04,807 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:32:04,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [63445687] [2024-11-01 19:32:04,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [63445687] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 19:32:04,807 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 19:32:04,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 4 [2024-11-01 19:32:04,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715887623] [2024-11-01 19:32:04,807 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 19:32:04,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-01 19:32:04,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:32:04,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-01 19:32:04,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-01 19:32:04,812 INFO L87 Difference]: Start difference. First operand 1673 states and 2494 transitions. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) [2024-11-01 19:32:08,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-01 19:32:09,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:32:09,408 INFO L93 Difference]: Finished difference Result 3327 states and 4980 transitions. [2024-11-01 19:32:09,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 19:32:09,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) Word has length 486 [2024-11-01 19:32:09,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:32:09,420 INFO L225 Difference]: With dead ends: 3327 [2024-11-01 19:32:09,420 INFO L226 Difference]: Without dead ends: 1703 [2024-11-01 19:32:09,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 970 GetRequests, 967 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-01 19:32:09,426 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 6 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-01 19:32:09,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1695 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 39 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-11-01 19:32:09,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2024-11-01 19:32:09,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1699. [2024-11-01 19:32:09,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1060 states have (on average 1.3311320754716982) internal successors, (1411), 1137 states have internal predecessors, (1411), 536 states have call successors, (536), 95 states have call predecessors, (536), 102 states have return successors, (569), 524 states have call predecessors, (569), 535 states have call successors, (569) [2024-11-01 19:32:09,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2516 transitions. [2024-11-01 19:32:09,495 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2516 transitions. Word has length 486 [2024-11-01 19:32:09,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:32:09,496 INFO L471 AbstractCegarLoop]: Abstraction has 1699 states and 2516 transitions. [2024-11-01 19:32:09,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (78), 2 states have call predecessors, (78), 2 states have call successors, (78) [2024-11-01 19:32:09,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2516 transitions. [2024-11-01 19:32:09,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2024-11-01 19:32:09,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:32:09,501 INFO L215 NwaCegarLoop]: trace histogram [40, 21, 21, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 19:32:09,514 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (13)] Ended with exit code 0 [2024-11-01 19:32:09,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:32:09,705 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:32:09,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:32:09,706 INFO L85 PathProgramCache]: Analyzing trace with hash -284098696, now seen corresponding path program 1 times [2024-11-01 19:32:09,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:32:09,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [790091619] [2024-11-01 19:32:09,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:32:09,706 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:32:09,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:32:09,711 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:32:09,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (14)] Waiting until timeout for monitored process [2024-11-01 19:32:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:32:10,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 1996 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 19:32:10,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:32:17,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2140 backedges. 335 proven. 0 refuted. 0 times theorem prover too weak. 1805 trivial. 0 not checked. [2024-11-01 19:32:17,472 INFO L311 TraceCheckSpWp]: Computing backward predicates...