/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 --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -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-17387ad-m [2024-11-06 12:16:51,593 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 12:16:51,681 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-06 12:16:51,689 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 12:16:51,691 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 12:16:51,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 12:16:51,723 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 12:16:51,723 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 12:16:51,724 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 12:16:51,724 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 12:16:51,725 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 12:16:51,725 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 12:16:51,726 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 12:16:51,728 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 12:16:51,728 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 12:16:51,728 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 12:16:51,729 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 12:16:51,729 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 12:16:51,729 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 12:16:51,729 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 12:16:51,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 12:16:51,735 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 12:16:51,735 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 12:16:51,735 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 12:16:51,735 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 12:16:51,736 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 12:16:51,736 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 12:16:51,736 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 12:16:51,736 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 12:16:51,737 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 12:16:51,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 12:16:51,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 12:16:51,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 12:16:51,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 12:16:51,738 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 12:16:51,738 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 12:16:51,739 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 12:16:51,740 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 12:16:51,740 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 12:16:51,740 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 12:16:51,740 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 12:16:51,740 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 12:16:52,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 12:16:52,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 12:16:52,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 12:16:52,032 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 12:16:52,033 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 12:16:52,035 INFO L431 ainManager$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 [2024-11-06 12:16:53,572 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 12:16:54,001 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 12:16:54,002 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 [2024-11-06 12:16:54,039 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09afc44c3/56e9bde55560485a82691a6572e2edff/FLAG54d8de713 [2024-11-06 12:16:54,058 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09afc44c3/56e9bde55560485a82691a6572e2edff [2024-11-06 12:16:54,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 12:16:54,063 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 12:16:54,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 12:16:54,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 12:16:54,075 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 12:16:54,076 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 12:16:54" (1/1) ... [2024-11-06 12:16:54,077 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a434474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:16:54, skipping insertion in model container [2024-11-06 12:16:54,077 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 12:16:54" (1/1) ... [2024-11-06 12:16:54,163 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 12:16:55,062 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:16:55,063 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:16:55,111 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:16:55,112 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:16:55,115 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:16:55,115 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:16:55,119 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:16:55,119 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:16:55,120 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:16:55,120 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:16:55,120 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:16:55,121 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:16:55,121 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:16:55,139 WARN L250 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] [2024-11-06 12:16:55,171 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-06 12:16:55,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 12:16:55,195 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 12:16:55,291 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] [2024-11-06 12:16:55,295 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] [2024-11-06 12:16:55,296 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] [2024-11-06 12:16:55,296 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] [2024-11-06 12:16:55,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [3164] [2024-11-06 12:16:55,303 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [3172] [2024-11-06 12:16:55,342 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] [2024-11-06 12:16:55,349 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] [2024-11-06 12:16:55,350 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] [2024-11-06 12:16:55,350 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] [2024-11-06 12:16:55,351 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] [2024-11-06 12:16:55,351 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] [2024-11-06 12:16:55,354 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] [2024-11-06 12:16:55,354 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] [2024-11-06 12:16:55,354 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] [2024-11-06 12:16:55,354 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] [2024-11-06 12:16:55,355 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] [2024-11-06 12:16:55,355 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] [2024-11-06 12:16:55,362 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] [2024-11-06 12:16:55,363 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] [2024-11-06 12:16:55,363 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] [2024-11-06 12:16:55,364 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] [2024-11-06 12:16:55,364 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] [2024-11-06 12:16:55,364 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] [2024-11-06 12:16:55,406 WARN L250 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] [2024-11-06 12:16:55,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 12:16:55,464 INFO L204 MainTranslator]: Completed translation [2024-11-06 12:16:55,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:16:55 WrapperNode [2024-11-06 12:16:55,467 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 12:16:55,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 12:16:55,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 12:16:55,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 12:16:55,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:16:55" (1/1) ... [2024-11-06 12:16:55,523 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:16:55" (1/1) ... [2024-11-06 12:16:55,604 INFO L138 Inliner]: procedures = 105, calls = 407, calls flagged for inlining = 31, calls inlined = 28, statements flattened = 1200 [2024-11-06 12:16:55,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 12:16:55,605 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 12:16:55,605 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 12:16:55,605 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 12:16:55,620 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:16:55" (1/1) ... [2024-11-06 12:16:55,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:16:55" (1/1) ... [2024-11-06 12:16:55,642 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:16:55" (1/1) ... [2024-11-06 12:16:55,721 INFO L175 MemorySlicer]: Split 104 memory accesses to 11 slices as follows [2, 2, 9, 29, 1, 3, 34, 0, 13, 3, 8]. 33 percent of accesses are in the largest equivalence class. The 40 initializations are split as follows [0, 2, 0, 0, 0, 3, 34, 0, 0, 1, 0]. The 50 writes are split as follows [1, 0, 2, 29, 1, 0, 0, 0, 12, 1, 4]. [2024-11-06 12:16:55,721 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:16:55" (1/1) ... [2024-11-06 12:16:55,722 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:16:55" (1/1) ... [2024-11-06 12:16:55,775 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:16:55" (1/1) ... [2024-11-06 12:16:55,786 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:16:55" (1/1) ... [2024-11-06 12:16:55,798 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:16:55" (1/1) ... [2024-11-06 12:16:55,813 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:16:55" (1/1) ... [2024-11-06 12:16:55,832 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 12:16:55,837 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 12:16:55,837 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 12:16:55,837 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 12:16:55,838 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:16:55" (1/1) ... [2024-11-06 12:16:55,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 12:16:55,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:16:55,870 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) [2024-11-06 12:16:55,872 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 [2024-11-06 12:16:55,892 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_stop [2024-11-06 12:16:55,893 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_stop [2024-11-06 12:16:55,893 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_write [2024-11-06 12:16:55,893 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_write [2024-11-06 12:16:55,893 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_update_timeout [2024-11-06 12:16:55,893 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_update_timeout [2024-11-06 12:16:55,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2024-11-06 12:16:55,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2024-11-06 12:16:55,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2024-11-06 12:16:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#3 [2024-11-06 12:16:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#4 [2024-11-06 12:16:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#5 [2024-11-06 12:16:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#6 [2024-11-06 12:16:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#7 [2024-11-06 12:16:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#8 [2024-11-06 12:16:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#9 [2024-11-06 12:16:55,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#10 [2024-11-06 12:16:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-06 12:16:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-06 12:16:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-06 12:16:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-06 12:16:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-06 12:16:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-06 12:16:55,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-06 12:16:55,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-06 12:16:55,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-06 12:16:55,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-06 12:16:55,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-06 12:16:55,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-06 12:16:55,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-06 12:16:55,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-06 12:16:55,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-06 12:16:55,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-06 12:16:55,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-06 12:16:55,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-06 12:16:55,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-06 12:16:55,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-06 12:16:55,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-06 12:16:55,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-06 12:16:55,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-06 12:16:55,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-06 12:16:55,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-06 12:16:55,898 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-06 12:16:55,898 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_round_time [2024-11-06 12:16:55,898 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_round_time [2024-11-06 12:16:55,898 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_reboot_notifier [2024-11-06 12:16:55,898 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_reboot_notifier [2024-11-06 12:16:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-06 12:16:55,899 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-06 12:16:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure superio_exit [2024-11-06 12:16:55,899 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_exit [2024-11-06 12:16:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-11-06 12:16:55,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-11-06 12:16:55,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-06 12:16:55,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-06 12:16:55,900 INFO L130 BoogieDeclarations]: Found specification of procedure superio_select [2024-11-06 12:16:55,900 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_select [2024-11-06 12:16:55,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-06 12:16:55,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-06 12:16:55,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-06 12:16:55,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-06 12:16:55,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-06 12:16:55,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#5 [2024-11-06 12:16:55,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#6 [2024-11-06 12:16:55,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#7 [2024-11-06 12:16:55,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#8 [2024-11-06 12:16:55,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#9 [2024-11-06 12:16:55,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#10 [2024-11-06 12:16:55,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-06 12:16:55,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-06 12:16:55,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#2 [2024-11-06 12:16:55,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#3 [2024-11-06 12:16:55,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#4 [2024-11-06 12:16:55,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#5 [2024-11-06 12:16:55,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#6 [2024-11-06 12:16:55,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#7 [2024-11-06 12:16:55,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#8 [2024-11-06 12:16:55,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#9 [2024-11-06 12:16:55,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#10 [2024-11-06 12:16:55,903 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-06 12:16:55,903 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-06 12:16:55,903 INFO L130 BoogieDeclarations]: Found specification of procedure superio_enter [2024-11-06 12:16:55,903 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_enter [2024-11-06 12:16:55,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-06 12:16:55,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-06 12:16:55,903 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-06 12:16:55,904 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-06 12:16:55,904 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_keepalive [2024-11-06 12:16:55,904 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_keepalive [2024-11-06 12:16:55,904 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inb [2024-11-06 12:16:55,904 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inb [2024-11-06 12:16:55,904 INFO L130 BoogieDeclarations]: Found specification of procedure superio_outb [2024-11-06 12:16:55,904 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_outb [2024-11-06 12:16:55,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-06 12:16:55,904 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-06 12:16:55,905 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-06 12:16:55,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-06 12:16:55,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-06 12:16:55,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 12:16:55,905 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inw [2024-11-06 12:16:55,905 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inw [2024-11-06 12:16:55,905 INFO L130 BoogieDeclarations]: Found specification of procedure superio_outw [2024-11-06 12:16:55,905 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_outw [2024-11-06 12:16:55,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-06 12:16:55,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-06 12:16:55,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-06 12:16:55,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-06 12:16:55,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-06 12:16:55,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-06 12:16:55,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-06 12:16:55,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-06 12:16:55,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-06 12:16:55,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-06 12:16:55,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-06 12:16:55,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-06 12:16:55,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-06 12:16:55,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-06 12:16:55,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-06 12:16:55,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-06 12:16:55,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-06 12:16:55,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-06 12:16:55,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-06 12:16:55,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-06 12:16:55,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-06 12:16:55,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-06 12:16:55,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-06 12:16:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#0 [2024-11-06 12:16:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#1 [2024-11-06 12:16:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#2 [2024-11-06 12:16:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#3 [2024-11-06 12:16:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#4 [2024-11-06 12:16:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#5 [2024-11-06 12:16:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#6 [2024-11-06 12:16:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#7 [2024-11-06 12:16:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#8 [2024-11-06 12:16:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#9 [2024-11-06 12:16:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#10 [2024-11-06 12:16:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-06 12:16:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-06 12:16:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-06 12:16:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-06 12:16:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-06 12:16:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-06 12:16:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-06 12:16:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-06 12:16:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-06 12:16:55,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-06 12:16:55,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-06 12:16:55,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-11-06 12:16:55,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-06 12:16:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-06 12:16:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-06 12:16:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-06 12:16:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-06 12:16:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-06 12:16:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-06 12:16:55,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-06 12:16:55,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-06 12:16:55,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-06 12:16:55,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-06 12:16:55,915 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-06 12:16:55,915 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-06 12:16:55,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 12:16:55,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-06 12:16:55,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-06 12:16:55,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-06 12:16:55,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-06 12:16:55,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-06 12:16:55,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-06 12:16:55,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-06 12:16:55,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-06 12:16:55,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-06 12:16:55,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-06 12:16:55,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-06 12:16:55,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-06 12:16:55,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-06 12:16:55,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-06 12:16:55,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-06 12:16:55,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-06 12:16:55,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-06 12:16:55,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-11-06 12:16:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2024-11-06 12:16:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2024-11-06 12:16:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2024-11-06 12:16:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#0 [2024-11-06 12:16:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#1 [2024-11-06 12:16:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#2 [2024-11-06 12:16:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#3 [2024-11-06 12:16:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#4 [2024-11-06 12:16:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#5 [2024-11-06 12:16:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#6 [2024-11-06 12:16:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#7 [2024-11-06 12:16:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#8 [2024-11-06 12:16:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#9 [2024-11-06 12:16:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#10 [2024-11-06 12:16:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2024-11-06 12:16:55,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2024-11-06 12:16:55,919 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_start [2024-11-06 12:16:55,920 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_start [2024-11-06 12:16:55,920 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-06 12:16:55,920 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-06 12:16:55,920 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-06 12:16:55,920 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-06 12:16:55,920 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-06 12:16:55,920 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-06 12:16:55,920 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2024-11-06 12:16:55,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2024-11-06 12:16:55,921 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2024-11-06 12:16:55,921 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2024-11-06 12:16:55,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 12:16:55,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 12:16:56,386 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 12:16:56,390 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 12:16:56,525 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-06 12:17:05,298 INFO L? ?]: Removed 480 outVars from TransFormulas that were not future-live. [2024-11-06 12:17:05,299 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 12:17:05,337 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 12:17:05,338 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-06 12:17:05,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 12:17:05 BoogieIcfgContainer [2024-11-06 12:17:05,342 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 12:17:05,344 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 12:17:05,344 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 12:17:05,348 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 12:17:05,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 12:16:54" (1/3) ... [2024-11-06 12:17:05,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e1fb9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 12:17:05, skipping insertion in model container [2024-11-06 12:17:05,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:16:55" (2/3) ... [2024-11-06 12:17:05,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e1fb9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 12:17:05, skipping insertion in model container [2024-11-06 12:17:05,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 12:17:05" (3/3) ... [2024-11-06 12:17:05,351 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2024-11-06 12:17:05,367 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 12:17:05,367 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 12:17:05,451 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 12:17:05,461 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;@2beaf061, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 12:17:05,462 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 12:17:05,470 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) [2024-11-06 12:17:05,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-06 12:17:05,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:17:05,492 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] [2024-11-06 12:17:05,492 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:17:05,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:17:05,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1201237634, now seen corresponding path program 1 times [2024-11-06 12:17:05,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:17:05,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [859591337] [2024-11-06 12:17:05,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:17:05,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:05,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:17:05,523 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:17:05,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-06 12:17:06,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:17:06,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-06 12:17:06,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:17:06,451 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-06 12:17:06,452 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:17:06,453 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:17:06,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859591337] [2024-11-06 12:17:06,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859591337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:17:06,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:17:06,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 12:17:06,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803884700] [2024-11-06 12:17:06,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:17:06,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 12:17:06,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:17:06,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 12:17:06,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 12:17:06,503 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 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-06 12:17:06,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:17:06,648 INFO L93 Difference]: Finished difference Result 1175 states and 1803 transitions. [2024-11-06 12:17:06,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 12:17:06,653 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 137 [2024-11-06 12:17:06,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:17:06,669 INFO L225 Difference]: With dead ends: 1175 [2024-11-06 12:17:06,669 INFO L226 Difference]: Without dead ends: 579 [2024-11-06 12:17:06,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 12:17:06,683 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 [2024-11-06 12:17:06,685 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] [2024-11-06 12:17:06,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-06 12:17:06,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2024-11-06 12:17:06,807 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) [2024-11-06 12:17:06,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 872 transitions. [2024-11-06 12:17:06,823 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 872 transitions. Word has length 137 [2024-11-06 12:17:06,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:17:06,824 INFO L471 AbstractCegarLoop]: Abstraction has 579 states and 872 transitions. [2024-11-06 12:17:06,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-06 12:17:06,825 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 872 transitions. [2024-11-06 12:17:06,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-06 12:17:06,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:17:06,836 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] [2024-11-06 12:17:06,867 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-06 12:17:07,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:07,037 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:17:07,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:17:07,038 INFO L85 PathProgramCache]: Analyzing trace with hash -2139712646, now seen corresponding path program 1 times [2024-11-06 12:17:07,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:17:07,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [20965060] [2024-11-06 12:17:07,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:17:07,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:07,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:17:07,042 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:17:07,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-06 12:17:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:17:07,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:17:07,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:17:07,854 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-11-06 12:17:07,855 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:17:07,855 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:17:07,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20965060] [2024-11-06 12:17:07,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20965060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:17:07,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:17:07,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 12:17:07,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716892944] [2024-11-06 12:17:07,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:17:07,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:17:07,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:17:07,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:17:07,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:17:07,858 INFO L87 Difference]: Start difference. First operand 579 states and 872 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-06 12:17:07,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:17:07,991 INFO L93 Difference]: Finished difference Result 590 states and 882 transitions. [2024-11-06 12:17:07,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:17:07,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 137 [2024-11-06 12:17:07,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:17:07,998 INFO L225 Difference]: With dead ends: 590 [2024-11-06 12:17:07,998 INFO L226 Difference]: Without dead ends: 585 [2024-11-06 12:17:07,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:17:08,000 INFO L432 NwaCegarLoop]: 871 mSDtfsCounter, 867 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-06 12:17:08,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 875 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-06 12:17:08,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-06 12:17:08,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 580. [2024-11-06 12:17:08,058 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) [2024-11-06 12:17:08,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 873 transitions. [2024-11-06 12:17:08,067 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 873 transitions. Word has length 137 [2024-11-06 12:17:08,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:17:08,069 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 873 transitions. [2024-11-06 12:17:08,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-06 12:17:08,071 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 873 transitions. [2024-11-06 12:17:08,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-06 12:17:08,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:17:08,077 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] [2024-11-06 12:17:08,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-06 12:17:08,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:08,283 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:17:08,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:17:08,284 INFO L85 PathProgramCache]: Analyzing trace with hash -2082454344, now seen corresponding path program 1 times [2024-11-06 12:17:08,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:17:08,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1062340406] [2024-11-06 12:17:08,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:17:08,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:08,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:17:08,287 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:17:08,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-06 12:17:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:17:08,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:17:08,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:17:11,310 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-11-06 12:17:11,310 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:17:11,310 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:17:11,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062340406] [2024-11-06 12:17:11,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062340406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:17:11,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:17:11,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 12:17:11,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017427797] [2024-11-06 12:17:11,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:17:11,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:17:11,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:17:11,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:17:11,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:17:11,316 INFO L87 Difference]: Start difference. First operand 580 states and 873 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-06 12:17:11,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:17:11,424 INFO L93 Difference]: Finished difference Result 1132 states and 1708 transitions. [2024-11-06 12:17:11,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:17:11,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 137 [2024-11-06 12:17:11,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:17:11,434 INFO L225 Difference]: With dead ends: 1132 [2024-11-06 12:17:11,435 INFO L226 Difference]: Without dead ends: 1093 [2024-11-06 12:17:11,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:17:11,437 INFO L432 NwaCegarLoop]: 968 mSDtfsCounter, 793 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1800 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 [2024-11-06 12:17:11,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1800 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 12:17:11,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2024-11-06 12:17:11,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1092. [2024-11-06 12:17:11,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1092 states, 689 states have (on average 1.3846153846153846) internal successors, (954), 737 states have internal predecessors, (954), 345 states have call successors, (345), 58 states have call predecessors, (345), 57 states have return successors, (344), 336 states have call predecessors, (344), 344 states have call successors, (344) [2024-11-06 12:17:11,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1643 transitions. [2024-11-06 12:17:11,541 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1643 transitions. Word has length 137 [2024-11-06 12:17:11,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:17:11,542 INFO L471 AbstractCegarLoop]: Abstraction has 1092 states and 1643 transitions. [2024-11-06 12:17:11,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-06 12:17:11,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1643 transitions. [2024-11-06 12:17:11,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-06 12:17:11,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:17:11,549 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-06 12:17:11,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-06 12:17:11,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:11,754 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:17:11,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:17:11,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1624036422, now seen corresponding path program 1 times [2024-11-06 12:17:11,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:17:11,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1094725645] [2024-11-06 12:17:11,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:17:11,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:11,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:17:11,759 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:17:11,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-06 12:17:12,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:17:12,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:17:12,478 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:17:12,627 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-06 12:17:12,628 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:17:12,628 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:17:12,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094725645] [2024-11-06 12:17:12,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094725645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:17:12,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:17:12,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 12:17:12,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16412353] [2024-11-06 12:17:12,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:17:12,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:17:12,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:17:12,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:17:12,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:17:12,633 INFO L87 Difference]: Start difference. First operand 1092 states and 1643 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-06 12:17:13,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:17:13,003 INFO L93 Difference]: Finished difference Result 2645 states and 3956 transitions. [2024-11-06 12:17:13,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:17:13,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 188 [2024-11-06 12:17:13,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:17:13,020 INFO L225 Difference]: With dead ends: 2645 [2024-11-06 12:17:13,020 INFO L226 Difference]: Without dead ends: 1581 [2024-11-06 12:17:13,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:17:13,029 INFO L432 NwaCegarLoop]: 878 mSDtfsCounter, 430 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 12:17:13,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 1671 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 12:17:13,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2024-11-06 12:17:13,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1572. [2024-11-06 12:17:13,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 971 states have (on average 1.3697219361483006) internal successors, (1330), 1039 states have internal predecessors, (1330), 506 states have call successors, (506), 95 states have call predecessors, (506), 94 states have return successors, (505), 493 states have call predecessors, (505), 505 states have call successors, (505) [2024-11-06 12:17:13,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2341 transitions. [2024-11-06 12:17:13,161 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2341 transitions. Word has length 188 [2024-11-06 12:17:13,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:17:13,163 INFO L471 AbstractCegarLoop]: Abstraction has 1572 states and 2341 transitions. [2024-11-06 12:17:13,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-06 12:17:13,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2341 transitions. [2024-11-06 12:17:13,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2024-11-06 12:17:13,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:17:13,174 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:17:13,205 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-06 12:17:13,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:13,379 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:17:13,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:17:13,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1125745284, now seen corresponding path program 1 times [2024-11-06 12:17:13,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:17:13,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2126166876] [2024-11-06 12:17:13,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:17:13,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:13,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:17:13,384 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:17:13,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-06 12:17:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:17:14,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 1424 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:17:14,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:17:17,691 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2024-11-06 12:17:17,692 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:17:17,692 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:17:17,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126166876] [2024-11-06 12:17:17,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126166876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:17:17,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:17:17,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 12:17:17,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872484242] [2024-11-06 12:17:17,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:17:17,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:17:17,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:17:17,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:17:17,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:17:17,696 INFO L87 Difference]: Start difference. First operand 1572 states and 2341 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-06 12:17:17,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:17:17,844 INFO L93 Difference]: Finished difference Result 3106 states and 4634 transitions. [2024-11-06 12:17:17,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:17:17,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 387 [2024-11-06 12:17:17,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:17:17,858 INFO L225 Difference]: With dead ends: 3106 [2024-11-06 12:17:17,858 INFO L226 Difference]: Without dead ends: 1572 [2024-11-06 12:17:17,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:17:17,868 INFO L432 NwaCegarLoop]: 870 mSDtfsCounter, 735 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 12:17:17,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 870 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 12:17:17,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2024-11-06 12:17:18,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1572. [2024-11-06 12:17:18,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 971 states have (on average 1.3656024716786819) internal successors, (1326), 1039 states have internal predecessors, (1326), 506 states have call successors, (506), 95 states have call predecessors, (506), 94 states have return successors, (505), 493 states have call predecessors, (505), 505 states have call successors, (505) [2024-11-06 12:17:18,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2337 transitions. [2024-11-06 12:17:18,055 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2337 transitions. Word has length 387 [2024-11-06 12:17:18,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:17:18,056 INFO L471 AbstractCegarLoop]: Abstraction has 1572 states and 2337 transitions. [2024-11-06 12:17:18,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-06 12:17:18,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2337 transitions. [2024-11-06 12:17:18,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-06 12:17:18,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:17:18,067 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:17:18,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-06 12:17:18,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:18,269 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:17:18,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:17:18,269 INFO L85 PathProgramCache]: Analyzing trace with hash -300384951, now seen corresponding path program 1 times [2024-11-06 12:17:18,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:17:18,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1165268978] [2024-11-06 12:17:18,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:17:18,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:18,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:17:18,272 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:17:18,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-06 12:17:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:17:19,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 1437 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 12:17:19,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:17:19,468 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2024-11-06 12:17:19,468 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:17:19,469 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:17:19,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165268978] [2024-11-06 12:17:19,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165268978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:17:19,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:17:19,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-06 12:17:19,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065938305] [2024-11-06 12:17:19,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:17:19,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 12:17:19,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:17:19,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 12:17:19,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 12:17:19,471 INFO L87 Difference]: Start difference. First operand 1572 states and 2337 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 2 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-06 12:17:19,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:17:19,859 INFO L93 Difference]: Finished difference Result 3122 states and 4664 transitions. [2024-11-06 12:17:19,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 12:17:19,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 2 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) Word has length 393 [2024-11-06 12:17:19,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:17:19,875 INFO L225 Difference]: With dead ends: 3122 [2024-11-06 12:17:19,875 INFO L226 Difference]: Without dead ends: 1588 [2024-11-06 12:17:19,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 12:17:19,884 INFO L432 NwaCegarLoop]: 869 mSDtfsCounter, 0 mSDsluCounter, 2590 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3459 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 12:17:19,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3459 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 12:17:19,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2024-11-06 12:17:19,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 1588. [2024-11-06 12:17:19,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 983 states have (on average 1.3611393692777212) internal successors, (1338), 1051 states have internal predecessors, (1338), 506 states have call successors, (506), 95 states have call predecessors, (506), 98 states have return successors, (527), 497 states have call predecessors, (527), 505 states have call successors, (527) [2024-11-06 12:17:20,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 2371 transitions. [2024-11-06 12:17:20,013 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 2371 transitions. Word has length 393 [2024-11-06 12:17:20,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:17:20,014 INFO L471 AbstractCegarLoop]: Abstraction has 1588 states and 2371 transitions. [2024-11-06 12:17:20,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 2 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-06 12:17:20,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 2371 transitions. [2024-11-06 12:17:20,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2024-11-06 12:17:20,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:17:20,027 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-06 12:17:20,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-06 12:17:20,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:20,229 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:17:20,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:17:20,230 INFO L85 PathProgramCache]: Analyzing trace with hash -157346514, now seen corresponding path program 1 times [2024-11-06 12:17:20,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:17:20,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1913787822] [2024-11-06 12:17:20,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:17:20,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:20,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:17:20,235 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:17:20,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-06 12:17:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:17:21,177 INFO L255 TraceCheckSpWp]: Trace formula consists of 1469 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 12:17:21,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:17:21,440 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 395 proven. 0 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2024-11-06 12:17:21,441 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:17:21,441 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:17:21,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913787822] [2024-11-06 12:17:21,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913787822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:17:21,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:17:21,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-06 12:17:21,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046776692] [2024-11-06 12:17:21,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:17:21,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 12:17:21,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:17:21,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 12:17:21,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 12:17:21,444 INFO L87 Difference]: Start difference. First operand 1588 states and 2371 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (56), 2 states have call predecessors, (56), 3 states have return successors, (55), 3 states have call predecessors, (55), 2 states have call successors, (55) [2024-11-06 12:17:21,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:17:21,802 INFO L93 Difference]: Finished difference Result 3146 states and 4706 transitions. [2024-11-06 12:17:21,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 12:17:21,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (56), 2 states have call predecessors, (56), 3 states have return successors, (55), 3 states have call predecessors, (55), 2 states have call successors, (55) Word has length 410 [2024-11-06 12:17:21,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:17:21,822 INFO L225 Difference]: With dead ends: 3146 [2024-11-06 12:17:21,822 INFO L226 Difference]: Without dead ends: 1596 [2024-11-06 12:17:21,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 406 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 12:17:21,832 INFO L432 NwaCegarLoop]: 869 mSDtfsCounter, 0 mSDsluCounter, 2590 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3459 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 12:17:21,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3459 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 12:17:21,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2024-11-06 12:17:21,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1596. [2024-11-06 12:17:21,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1596 states, 991 states have (on average 1.3582240161453079) internal successors, (1346), 1055 states have internal predecessors, (1346), 506 states have call successors, (506), 95 states have call predecessors, (506), 98 states have return successors, (527), 501 states have call predecessors, (527), 505 states have call successors, (527) [2024-11-06 12:17:21,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1596 states to 1596 states and 2379 transitions. [2024-11-06 12:17:21,954 INFO L78 Accepts]: Start accepts. Automaton has 1596 states and 2379 transitions. Word has length 410 [2024-11-06 12:17:21,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:17:21,955 INFO L471 AbstractCegarLoop]: Abstraction has 1596 states and 2379 transitions. [2024-11-06 12:17:21,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (56), 2 states have call predecessors, (56), 3 states have return successors, (55), 3 states have call predecessors, (55), 2 states have call successors, (55) [2024-11-06 12:17:21,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 2379 transitions. [2024-11-06 12:17:21,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2024-11-06 12:17:21,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:17:21,964 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 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, 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] [2024-11-06 12:17:22,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-06 12:17:22,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:22,166 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:17:22,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:17:22,167 INFO L85 PathProgramCache]: Analyzing trace with hash -873069429, now seen corresponding path program 1 times [2024-11-06 12:17:22,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:17:22,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2075169695] [2024-11-06 12:17:22,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:17:22,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:22,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:17:22,170 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:17:22,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-06 12:17:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:17:23,077 INFO L255 TraceCheckSpWp]: Trace formula consists of 1523 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 12:17:23,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:17:25,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2024-11-06 12:17:25,283 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:17:25,283 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:17:25,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075169695] [2024-11-06 12:17:25,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075169695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:17:25,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:17:25,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 12:17:25,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642001146] [2024-11-06 12:17:25,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:17:25,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 12:17:25,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:17:25,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 12:17:25,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 12:17:25,287 INFO L87 Difference]: Start difference. First operand 1596 states and 2379 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 4 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (57), 4 states have call predecessors, (57), 4 states have call successors, (57) [2024-11-06 12:17:26,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:17:26,326 INFO L93 Difference]: Finished difference Result 3478 states and 5254 transitions. [2024-11-06 12:17:26,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 12:17:26,327 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 4 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (57), 4 states have call predecessors, (57), 4 states have call successors, (57) Word has length 435 [2024-11-06 12:17:26,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:17:26,345 INFO L225 Difference]: With dead ends: 3478 [2024-11-06 12:17:26,345 INFO L226 Difference]: Without dead ends: 1920 [2024-11-06 12:17:26,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 12:17:26,355 INFO L432 NwaCegarLoop]: 947 mSDtfsCounter, 910 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 12:17:26,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 1806 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 12:17:26,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1920 states. [2024-11-06 12:17:26,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1920 to 1878. [2024-11-06 12:17:26,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1878 states, 1137 states have (on average 1.3562005277044855) internal successors, (1542), 1227 states have internal predecessors, (1542), 642 states have call successors, (642), 95 states have call predecessors, (642), 98 states have return successors, (667), 633 states have call predecessors, (667), 641 states have call successors, (667) [2024-11-06 12:17:26,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1878 states to 1878 states and 2851 transitions. [2024-11-06 12:17:26,585 INFO L78 Accepts]: Start accepts. Automaton has 1878 states and 2851 transitions. Word has length 435 [2024-11-06 12:17:26,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:17:26,586 INFO L471 AbstractCegarLoop]: Abstraction has 1878 states and 2851 transitions. [2024-11-06 12:17:26,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 4 states have call successors, (58), 3 states have call predecessors, (58), 3 states have return successors, (57), 4 states have call predecessors, (57), 4 states have call successors, (57) [2024-11-06 12:17:26,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1878 states and 2851 transitions. [2024-11-06 12:17:26,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2024-11-06 12:17:26,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:17:26,594 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:17:26,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-06 12:17:26,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:26,796 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:17:26,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:17:26,796 INFO L85 PathProgramCache]: Analyzing trace with hash -37309437, now seen corresponding path program 1 times [2024-11-06 12:17:26,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:17:26,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1817891571] [2024-11-06 12:17:26,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:17:26,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:26,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:17:26,799 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:17:26,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-06 12:17:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:17:27,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 1540 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 12:17:27,676 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:17:27,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 498 proven. 0 refuted. 0 times theorem prover too weak. 541 trivial. 0 not checked. [2024-11-06 12:17:27,774 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:17:27,774 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:17:27,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817891571] [2024-11-06 12:17:27,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817891571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:17:27,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:17:27,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 12:17:27,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490805843] [2024-11-06 12:17:27,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:17:27,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:17:27,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:17:27,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:17:27,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:17:27,778 INFO L87 Difference]: Start difference. First operand 1878 states and 2851 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2024-11-06 12:17:28,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:17:28,334 INFO L93 Difference]: Finished difference Result 3754 states and 5710 transitions. [2024-11-06 12:17:28,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:17:28,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 448 [2024-11-06 12:17:28,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:17:28,355 INFO L225 Difference]: With dead ends: 3754 [2024-11-06 12:17:28,355 INFO L226 Difference]: Without dead ends: 1914 [2024-11-06 12:17:28,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:17:28,368 INFO L432 NwaCegarLoop]: 858 mSDtfsCounter, 3 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-06 12:17:28,369 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1696 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-06 12:17:28,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2024-11-06 12:17:28,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1914. [2024-11-06 12:17:28,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1914 states, 1173 states have (on average 1.341858482523444) internal successors, (1574), 1263 states have internal predecessors, (1574), 642 states have call successors, (642), 95 states have call predecessors, (642), 98 states have return successors, (667), 633 states have call predecessors, (667), 641 states have call successors, (667) [2024-11-06 12:17:28,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2883 transitions. [2024-11-06 12:17:28,527 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2883 transitions. Word has length 448 [2024-11-06 12:17:28,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:17:28,528 INFO L471 AbstractCegarLoop]: Abstraction has 1914 states and 2883 transitions. [2024-11-06 12:17:28,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2024-11-06 12:17:28,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2883 transitions. [2024-11-06 12:17:28,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2024-11-06 12:17:28,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:17:28,536 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:17:28,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-06 12:17:28,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:28,741 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:17:28,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:17:28,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1973231295, now seen corresponding path program 1 times [2024-11-06 12:17:28,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:17:28,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [765513426] [2024-11-06 12:17:28,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:17:28,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:28,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:17:28,746 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:17:28,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-06 12:17:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:17:29,763 INFO L255 TraceCheckSpWp]: Trace formula consists of 1540 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 12:17:29,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:17:30,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 980 trivial. 0 not checked. [2024-11-06 12:17:30,263 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:17:30,263 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:17:30,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765513426] [2024-11-06 12:17:30,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765513426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:17:30,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:17:30,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-06 12:17:30,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292890165] [2024-11-06 12:17:30,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:17:30,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 12:17:30,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:17:30,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 12:17:30,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 12:17:30,267 INFO L87 Difference]: Start difference. First operand 1914 states and 2883 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2024-11-06 12:17:34,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-06 12:17:34,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:17:34,990 INFO L93 Difference]: Finished difference Result 3799 states and 5728 transitions. [2024-11-06 12:17:34,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 12:17:34,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 448 [2024-11-06 12:17:34,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:17:35,012 INFO L225 Difference]: With dead ends: 3799 [2024-11-06 12:17:35,012 INFO L226 Difference]: Without dead ends: 1798 [2024-11-06 12:17:35,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 444 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 12:17:35,029 INFO L432 NwaCegarLoop]: 869 mSDtfsCounter, 12 mSDsluCounter, 2558 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 3427 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-06 12:17:35,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 3427 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 27 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-11-06 12:17:35,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2024-11-06 12:17:35,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1688. [2024-11-06 12:17:35,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1688 states, 1040 states have (on average 1.3346153846153845) internal successors, (1388), 1121 states have internal predecessors, (1388), 550 states have call successors, (550), 94 states have call predecessors, (550), 97 states have return successors, (569), 534 states have call predecessors, (569), 549 states have call successors, (569) [2024-11-06 12:17:35,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1688 states to 1688 states and 2507 transitions. [2024-11-06 12:17:35,206 INFO L78 Accepts]: Start accepts. Automaton has 1688 states and 2507 transitions. Word has length 448 [2024-11-06 12:17:35,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:17:35,207 INFO L471 AbstractCegarLoop]: Abstraction has 1688 states and 2507 transitions. [2024-11-06 12:17:35,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2024-11-06 12:17:35,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1688 states and 2507 transitions. [2024-11-06 12:17:35,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2024-11-06 12:17:35,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:17:35,220 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 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, 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, 1, 1] [2024-11-06 12:17:35,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-06 12:17:35,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:35,423 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:17:35,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:17:35,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1809297515, now seen corresponding path program 1 times [2024-11-06 12:17:35,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:17:35,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1629260695] [2024-11-06 12:17:35,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:17:35,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:35,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:17:35,429 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:17:35,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-06 12:17:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:17:36,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:17:36,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:17:47,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked. [2024-11-06 12:17:47,674 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:17:47,674 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:17:47,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629260695] [2024-11-06 12:17:47,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629260695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:17:47,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:17:47,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 12:17:47,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680485070] [2024-11-06 12:17:47,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:17:47,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:17:47,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:17:47,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:17:47,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:17:47,676 INFO L87 Difference]: Start difference. First operand 1688 states and 2507 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-06 12:17:47,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:17:47,856 INFO L93 Difference]: Finished difference Result 3338 states and 4966 transitions. [2024-11-06 12:17:47,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 12:17:47,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 440 [2024-11-06 12:17:47,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:17:47,887 INFO L225 Difference]: With dead ends: 3338 [2024-11-06 12:17:47,887 INFO L226 Difference]: Without dead ends: 1688 [2024-11-06 12:17:47,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:17:47,899 INFO L432 NwaCegarLoop]: 867 mSDtfsCounter, 664 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 12:17:47,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 867 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 12:17:47,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1688 states. [2024-11-06 12:17:48,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1688 to 1688. [2024-11-06 12:17:48,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1688 states, 1040 states have (on average 1.3326923076923076) internal successors, (1386), 1121 states have internal predecessors, (1386), 550 states have call successors, (550), 94 states have call predecessors, (550), 97 states have return successors, (569), 534 states have call predecessors, (569), 549 states have call successors, (569) [2024-11-06 12:17:48,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1688 states to 1688 states and 2505 transitions. [2024-11-06 12:17:48,114 INFO L78 Accepts]: Start accepts. Automaton has 1688 states and 2505 transitions. Word has length 440 [2024-11-06 12:17:48,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:17:48,115 INFO L471 AbstractCegarLoop]: Abstraction has 1688 states and 2505 transitions. [2024-11-06 12:17:48,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-06 12:17:48,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1688 states and 2505 transitions. [2024-11-06 12:17:48,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2024-11-06 12:17:48,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:17:48,123 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 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, 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, 1, 1, 1, 1, 1] [2024-11-06 12:17:48,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-06 12:17:48,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:48,325 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:17:48,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:17:48,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1287182439, now seen corresponding path program 1 times [2024-11-06 12:17:48,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:17:48,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1431938905] [2024-11-06 12:17:48,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:17:48,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:48,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:17:48,329 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:17:48,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-06 12:17:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:17:49,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 1531 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-06 12:17:49,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:17:50,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 986 trivial. 0 not checked. [2024-11-06 12:17:50,331 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:17:50,331 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:17:50,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431938905] [2024-11-06 12:17:50,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431938905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:17:50,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:17:50,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-06 12:17:50,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28531924] [2024-11-06 12:17:50,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:17:50,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-06 12:17:50,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:17:50,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-06 12:17:50,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-06 12:17:50,338 INFO L87 Difference]: Start difference. First operand 1688 states and 2505 transitions. Second operand has 8 states, 8 states have (on average 20.5) internal successors, (164), 6 states have internal predecessors, (164), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (51), 4 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-06 12:17:51,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:17:51,361 INFO L93 Difference]: Finished difference Result 3358 states and 4998 transitions. [2024-11-06 12:17:51,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-06 12:17:51,363 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 6 states have internal predecessors, (164), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (51), 4 states have call predecessors, (51), 2 states have call successors, (51) Word has length 446 [2024-11-06 12:17:51,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:17:51,381 INFO L225 Difference]: With dead ends: 3358 [2024-11-06 12:17:51,381 INFO L226 Difference]: Without dead ends: 1708 [2024-11-06 12:17:51,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-06 12:17:51,391 INFO L432 NwaCegarLoop]: 865 mSDtfsCounter, 1 mSDsluCounter, 5180 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6045 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 12:17:51,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6045 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 12:17:51,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1708 states. [2024-11-06 12:17:51,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1708 to 1700. [2024-11-06 12:17:51,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 1050 states have (on average 1.3295238095238096) internal successors, (1396), 1129 states have internal predecessors, (1396), 550 states have call successors, (550), 94 states have call predecessors, (550), 99 states have return successors, (573), 538 states have call predecessors, (573), 549 states have call successors, (573) [2024-11-06 12:17:51,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2519 transitions. [2024-11-06 12:17:51,547 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2519 transitions. Word has length 446 [2024-11-06 12:17:51,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:17:51,548 INFO L471 AbstractCegarLoop]: Abstraction has 1700 states and 2519 transitions. [2024-11-06 12:17:51,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 6 states have internal predecessors, (164), 2 states have call successors, (52), 2 states have call predecessors, (52), 4 states have return successors, (51), 4 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-06 12:17:51,549 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2519 transitions. [2024-11-06 12:17:51,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-06 12:17:51,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:17:51,557 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:17:51,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-06 12:17:51,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:51,759 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:17:51,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:17:51,760 INFO L85 PathProgramCache]: Analyzing trace with hash 442632265, now seen corresponding path program 1 times [2024-11-06 12:17:51,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:17:51,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [676790666] [2024-11-06 12:17:51,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:17:51,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:17:51,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:17:51,764 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:17:51,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-06 12:17:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:17:52,706 INFO L255 TraceCheckSpWp]: Trace formula consists of 1551 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-06 12:17:52,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:17:54,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2024-11-06 12:17:54,563 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:17:54,564 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:17:54,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676790666] [2024-11-06 12:17:54,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676790666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:17:54,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:17:54,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-06 12:17:54,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489602569] [2024-11-06 12:17:54,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:17:54,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-06 12:17:54,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:17:54,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-06 12:17:54,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-06 12:17:54,567 INFO L87 Difference]: Start difference. First operand 1700 states and 2519 transitions. Second operand has 10 states, 10 states have (on average 16.5) internal successors, (165), 8 states have internal predecessors, (165), 3 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (54), 5 states have call predecessors, (54), 3 states have call successors, (54) [2024-11-06 12:17:58,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-06 12:18:02,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 12:18:02,646 INFO L93 Difference]: Finished difference Result 5044 states and 7493 transitions. [2024-11-06 12:18:02,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-06 12:18:02,647 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.5) internal successors, (165), 8 states have internal predecessors, (165), 3 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (54), 5 states have call predecessors, (54), 3 states have call successors, (54) Word has length 457 [2024-11-06 12:18:02,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 12:18:02,675 INFO L225 Difference]: With dead ends: 5044 [2024-11-06 12:18:02,675 INFO L226 Difference]: Without dead ends: 3382 [2024-11-06 12:18:02,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-06 12:18:02,685 INFO L432 NwaCegarLoop]: 1520 mSDtfsCounter, 838 mSDsluCounter, 11482 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 13002 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-06 12:18:02,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 13002 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 152 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2024-11-06 12:18:02,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3382 states. [2024-11-06 12:18:02,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3382 to 2406. [2024-11-06 12:18:02,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2406 states, 1493 states have (on average 1.3261888814467515) internal successors, (1980), 1598 states have internal predecessors, (1980), 766 states have call successors, (766), 138 states have call predecessors, (766), 146 states have return successors, (797), 751 states have call predecessors, (797), 765 states have call successors, (797) [2024-11-06 12:18:02,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2406 states to 2406 states and 3543 transitions. [2024-11-06 12:18:02,975 INFO L78 Accepts]: Start accepts. Automaton has 2406 states and 3543 transitions. Word has length 457 [2024-11-06 12:18:02,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 12:18:02,977 INFO L471 AbstractCegarLoop]: Abstraction has 2406 states and 3543 transitions. [2024-11-06 12:18:02,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.5) internal successors, (165), 8 states have internal predecessors, (165), 3 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (54), 5 states have call predecessors, (54), 3 states have call successors, (54) [2024-11-06 12:18:02,977 INFO L276 IsEmpty]: Start isEmpty. Operand 2406 states and 3543 transitions. [2024-11-06 12:18:02,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-06 12:18:02,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 12:18:02,987 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 12:18:03,023 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-06 12:18:03,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:18:03,188 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 12:18:03,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 12:18:03,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1828835659, now seen corresponding path program 1 times [2024-11-06 12:18:03,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 12:18:03,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1066662548] [2024-11-06 12:18:03,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 12:18:03,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 12:18:03,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 12:18:03,191 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 12:18:03,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-06 12:18:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 12:18:04,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 1549 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 12:18:04,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 12:18:06,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1048 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2024-11-06 12:18:06,343 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 12:18:06,343 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 12:18:06,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066662548] [2024-11-06 12:18:06,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066662548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 12:18:06,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 12:18:06,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 12:18:06,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507631438] [2024-11-06 12:18:06,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 12:18:06,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 12:18:06,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 12:18:06,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 12:18:06,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 12:18:06,345 INFO L87 Difference]: Start difference. First operand 2406 states and 3543 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 3 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2024-11-06 12:18:10,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []