/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 06:58:25,484 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 06:58:25,541 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-01 06:58:25,547 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 06:58:25,548 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 06:58:25,574 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 06:58:25,574 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 06:58:25,575 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 06:58:25,575 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 06:58:25,575 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 06:58:25,575 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 06:58:25,576 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 06:58:25,576 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 06:58:25,576 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 06:58:25,577 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 06:58:25,577 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 06:58:25,577 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 06:58:25,587 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 06:58:25,587 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 06:58:25,587 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 06:58:25,587 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 06:58:25,588 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 06:58:25,589 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 06:58:25,589 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 06:58:25,589 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 06:58:25,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 06:58:25,590 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 06:58:25,591 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 06:58:25,591 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 06:58:25,599 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 06:58:25,600 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 06:58:25,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 06:58:25,600 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 06:58:25,601 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 06:58:25,601 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 06:58:25,601 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 06:58:25,601 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 06:58:25,602 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 06:58:25,602 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 06:58:25,608 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 06:58:25,609 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 06:58:25,609 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 06:58:25,609 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-01 06:58:26,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 06:58:26,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 06:58:26,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 06:58:26,064 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 06:58:26,064 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 06:58:26,066 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2024-11-01 06:58:27,826 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 06:58:28,367 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 06:58:28,367 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2024-11-01 06:58:28,407 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a7a76b5e/9349c324f0ce44219475321473646bd2/FLAG7da7a1bd1 [2024-11-01 06:58:28,428 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a7a76b5e/9349c324f0ce44219475321473646bd2 [2024-11-01 06:58:28,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 06:58:28,433 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 06:58:28,436 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 06:58:28,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 06:58:28,441 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 06:58:28,441 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 06:58:28" (1/1) ... [2024-11-01 06:58:28,442 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f5aaae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:58:28, skipping insertion in model container [2024-11-01 06:58:28,442 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 06:58:28" (1/1) ... [2024-11-01 06:58:28,551 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 06:58:29,342 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:58:29,342 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:58:29,398 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:58:29,398 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:58:29,401 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:58:29,401 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:58:29,402 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:58:29,403 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:58:29,403 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:58:29,403 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:58:29,404 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:58:29,404 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:58:29,404 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:58:29,426 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i[120162,120175] [2024-11-01 06:58:29,460 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:58:29,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 06:58:29,488 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 06:58:29,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3119] [2024-11-01 06:58:29,578 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [3126] [2024-11-01 06:58:29,578 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3134-3135] [2024-11-01 06:58:29,579 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3143-3144] [2024-11-01 06:58:29,580 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [3164] [2024-11-01 06:58:29,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [3172] [2024-11-01 06:58:29,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (buf + ofs), "i" (1UL)); [3673-3674] [2024-11-01 06:58:29,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (uarg.i): "ebx"); [3734] [2024-11-01 06:58:29,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (uarg.i): "ebx"); [3737] [2024-11-01 06:58:29,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (uarg.i): "ebx"); [3740] [2024-11-01 06:58:29,621 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (uarg.i): "ebx"); [3743] [2024-11-01 06:58:29,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (uarg.i): "ebx"); [3746] [2024-11-01 06:58:29,623 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (uarg.i): "ebx"); [3757-3758] [2024-11-01 06:58:29,623 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (uarg.i): "ebx"); [3761-3762] [2024-11-01 06:58:29,623 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (uarg.i): "ebx"); [3765-3766] [2024-11-01 06:58:29,624 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (uarg.i): "ebx"); [3769-3770] [2024-11-01 06:58:29,624 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (uarg.i): "ebx"); [3773-3774] [2024-11-01 06:58:29,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (uarg.i), "i" (4UL)); [3785-3786] [2024-11-01 06:58:29,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___0), "=r" (__val_gu___0): "0" (uarg.i), "i" (4UL)); [3823-3824] [2024-11-01 06:58:29,631 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (uarg.i): "ebx"); [3837-3838] [2024-11-01 06:58:29,631 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (uarg.i): "ebx"); [3841-3842] [2024-11-01 06:58:29,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (uarg.i): "ebx"); [3845-3846] [2024-11-01 06:58:29,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (uarg.i): "ebx"); [3849-3850] [2024-11-01 06:58:29,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (uarg.i): "ebx"); [3853-3854] [2024-11-01 06:58:29,668 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i[120162,120175] [2024-11-01 06:58:29,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 06:58:29,734 INFO L204 MainTranslator]: Completed translation [2024-11-01 06:58:29,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:58:29 WrapperNode [2024-11-01 06:58:29,736 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 06:58:29,738 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 06:58:29,738 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 06:58:29,738 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 06:58:29,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:58:29" (1/1) ... [2024-11-01 06:58:29,796 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:58:29" (1/1) ... [2024-11-01 06:58:29,889 INFO L138 Inliner]: procedures = 105, calls = 407, calls flagged for inlining = 31, calls inlined = 28, statements flattened = 1200 [2024-11-01 06:58:29,890 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 06:58:29,890 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 06:58:29,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 06:58:29,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 06:58:29,907 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:58:29" (1/1) ... [2024-11-01 06:58:29,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:58:29" (1/1) ... [2024-11-01 06:58:29,925 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:58:29" (1/1) ... [2024-11-01 06:58:29,999 INFO L175 MemorySlicer]: Split 104 memory accesses to 11 slices as follows [8, 2, 1, 3, 2, 3, 34, 29, 13, 0, 9]. 33 percent of accesses are in the largest equivalence class. The 40 initializations are split as follows [0, 2, 0, 3, 0, 1, 34, 0, 0, 0, 0]. The 50 writes are split as follows [4, 0, 1, 0, 1, 1, 0, 29, 12, 0, 2]. [2024-11-01 06:58:30,000 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:58:29" (1/1) ... [2024-11-01 06:58:30,000 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:58:29" (1/1) ... [2024-11-01 06:58:30,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:58:29" (1/1) ... [2024-11-01 06:58:30,088 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:58:29" (1/1) ... [2024-11-01 06:58:30,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:58:29" (1/1) ... [2024-11-01 06:58:30,105 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:58:29" (1/1) ... [2024-11-01 06:58:30,122 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 06:58:30,127 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 06:58:30,127 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 06:58:30,127 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 06:58:30,128 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:58:29" (1/1) ... [2024-11-01 06:58:30,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 06:58:30,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 06:58:30,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-01 06:58:30,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-01 06:58:30,190 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_stop [2024-11-01 06:58:30,190 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_stop [2024-11-01 06:58:30,191 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_write [2024-11-01 06:58:30,191 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_write [2024-11-01 06:58:30,191 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_update_timeout [2024-11-01 06:58:30,191 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_update_timeout [2024-11-01 06:58:30,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2024-11-01 06:58:30,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2024-11-01 06:58:30,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2024-11-01 06:58:30,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#3 [2024-11-01 06:58:30,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#4 [2024-11-01 06:58:30,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#5 [2024-11-01 06:58:30,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#6 [2024-11-01 06:58:30,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#7 [2024-11-01 06:58:30,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#8 [2024-11-01 06:58:30,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#9 [2024-11-01 06:58:30,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#10 [2024-11-01 06:58:30,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-01 06:58:30,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-01 06:58:30,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-01 06:58:30,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-01 06:58:30,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-01 06:58:30,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-01 06:58:30,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-01 06:58:30,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-01 06:58:30,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-01 06:58:30,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-01 06:58:30,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-01 06:58:30,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-01 06:58:30,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-01 06:58:30,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-01 06:58:30,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-01 06:58:30,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-01 06:58:30,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-01 06:58:30,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-01 06:58:30,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-01 06:58:30,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-01 06:58:30,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-01 06:58:30,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-01 06:58:30,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-01 06:58:30,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-01 06:58:30,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-01 06:58:30,195 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-01 06:58:30,195 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_round_time [2024-11-01 06:58:30,195 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_round_time [2024-11-01 06:58:30,195 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_reboot_notifier [2024-11-01 06:58:30,195 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_reboot_notifier [2024-11-01 06:58:30,196 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-01 06:58:30,196 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-01 06:58:30,196 INFO L130 BoogieDeclarations]: Found specification of procedure superio_exit [2024-11-01 06:58:30,200 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_exit [2024-11-01 06:58:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-11-01 06:58:30,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-11-01 06:58:30,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-01 06:58:30,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-01 06:58:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure superio_select [2024-11-01 06:58:30,201 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_select [2024-11-01 06:58:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-01 06:58:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-01 06:58:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-01 06:58:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-01 06:58:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-01 06:58:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#5 [2024-11-01 06:58:30,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#6 [2024-11-01 06:58:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#7 [2024-11-01 06:58:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#8 [2024-11-01 06:58:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#9 [2024-11-01 06:58:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#10 [2024-11-01 06:58:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-01 06:58:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-01 06:58:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#2 [2024-11-01 06:58:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#3 [2024-11-01 06:58:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#4 [2024-11-01 06:58:30,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#5 [2024-11-01 06:58:30,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#6 [2024-11-01 06:58:30,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#7 [2024-11-01 06:58:30,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#8 [2024-11-01 06:58:30,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#9 [2024-11-01 06:58:30,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#10 [2024-11-01 06:58:30,203 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-01 06:58:30,203 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-01 06:58:30,203 INFO L130 BoogieDeclarations]: Found specification of procedure superio_enter [2024-11-01 06:58:30,203 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_enter [2024-11-01 06:58:30,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-01 06:58:30,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-01 06:58:30,204 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-01 06:58:30,204 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-01 06:58:30,204 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_keepalive [2024-11-01 06:58:30,204 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_keepalive [2024-11-01 06:58:30,204 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inb [2024-11-01 06:58:30,204 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inb [2024-11-01 06:58:30,204 INFO L130 BoogieDeclarations]: Found specification of procedure superio_outb [2024-11-01 06:58:30,204 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_outb [2024-11-01 06:58:30,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-01 06:58:30,204 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-01 06:58:30,204 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-01 06:58:30,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-01 06:58:30,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-01 06:58:30,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 06:58:30,205 INFO L130 BoogieDeclarations]: Found specification of procedure superio_inw [2024-11-01 06:58:30,205 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_inw [2024-11-01 06:58:30,205 INFO L130 BoogieDeclarations]: Found specification of procedure superio_outw [2024-11-01 06:58:30,205 INFO L138 BoogieDeclarations]: Found implementation of procedure superio_outw [2024-11-01 06:58:30,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-01 06:58:30,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-01 06:58:30,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-01 06:58:30,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-01 06:58:30,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-01 06:58:30,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-01 06:58:30,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-01 06:58:30,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-01 06:58:30,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-01 06:58:30,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-01 06:58:30,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-01 06:58:30,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-01 06:58:30,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-01 06:58:30,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-01 06:58:30,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-01 06:58:30,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-01 06:58:30,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-01 06:58:30,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-01 06:58:30,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-01 06:58:30,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-01 06:58:30,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-01 06:58:30,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-01 06:58:30,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-01 06:58:30,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#0 [2024-11-01 06:58:30,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#1 [2024-11-01 06:58:30,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#2 [2024-11-01 06:58:30,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#3 [2024-11-01 06:58:30,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#4 [2024-11-01 06:58:30,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#5 [2024-11-01 06:58:30,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#6 [2024-11-01 06:58:30,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#7 [2024-11-01 06:58:30,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#8 [2024-11-01 06:58:30,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#9 [2024-11-01 06:58:30,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#10 [2024-11-01 06:58:30,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-01 06:58:30,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-01 06:58:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-01 06:58:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-01 06:58:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-01 06:58:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-01 06:58:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-01 06:58:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-01 06:58:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-01 06:58:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-01 06:58:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-01 06:58:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-11-01 06:58:30,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-01 06:58:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-01 06:58:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-01 06:58:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-01 06:58:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-01 06:58:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-01 06:58:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-01 06:58:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-01 06:58:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-01 06:58:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-01 06:58:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-01 06:58:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-01 06:58:30,210 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-01 06:58:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 06:58:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-01 06:58:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-01 06:58:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-01 06:58:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-01 06:58:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-01 06:58:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-01 06:58:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-01 06:58:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-01 06:58:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-01 06:58:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-01 06:58:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-01 06:58:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-01 06:58:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-01 06:58:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-01 06:58:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-01 06:58:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-01 06:58:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-01 06:58:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-11-01 06:58:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2024-11-01 06:58:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2024-11-01 06:58:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2024-11-01 06:58:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#0 [2024-11-01 06:58:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#1 [2024-11-01 06:58:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#2 [2024-11-01 06:58:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#3 [2024-11-01 06:58:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#4 [2024-11-01 06:58:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#5 [2024-11-01 06:58:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#6 [2024-11-01 06:58:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#7 [2024-11-01 06:58:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#8 [2024-11-01 06:58:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#9 [2024-11-01 06:58:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8#10 [2024-11-01 06:58:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2024-11-01 06:58:30,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2024-11-01 06:58:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure wdt_start [2024-11-01 06:58:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure wdt_start [2024-11-01 06:58:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-01 06:58:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-01 06:58:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-01 06:58:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-01 06:58:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-01 06:58:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-01 06:58:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2024-11-01 06:58:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2024-11-01 06:58:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2024-11-01 06:58:30,214 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2024-11-01 06:58:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 06:58:30,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 06:58:30,573 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 06:58:30,575 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 06:58:30,711 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-01 06:58:39,375 INFO L? ?]: Removed 480 outVars from TransFormulas that were not future-live. [2024-11-01 06:58:39,375 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 06:58:39,414 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 06:58:39,415 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-01 06:58:39,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 06:58:39 BoogieIcfgContainer [2024-11-01 06:58:39,415 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 06:58:39,419 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 06:58:39,420 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 06:58:39,424 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 06:58:39,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 06:58:28" (1/3) ... [2024-11-01 06:58:39,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2c4644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 06:58:39, skipping insertion in model container [2024-11-01 06:58:39,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:58:29" (2/3) ... [2024-11-01 06:58:39,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2c4644 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 06:58:39, skipping insertion in model container [2024-11-01 06:58:39,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 06:58:39" (3/3) ... [2024-11-01 06:58:39,426 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--watchdog--it87_wdt.ko-entry_point.cil.out.i [2024-11-01 06:58:39,437 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 06:58:39,437 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 06:58:39,504 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 06:58:39,511 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;@497de700, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 06:58:39,511 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 06:58:39,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 590 states, 367 states have (on average 1.3923705722070845) internal successors, (511), 400 states have internal predecessors, (511), 191 states have call successors, (191), 31 states have call predecessors, (191), 30 states have return successors, (187), 182 states have call predecessors, (187), 187 states have call successors, (187) [2024-11-01 06:58:39,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-01 06:58:39,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:58:39,537 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:58:39,538 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:58:39,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:58:39,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1201237634, now seen corresponding path program 1 times [2024-11-01 06:58:39,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:58:39,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208884229] [2024-11-01 06:58:39,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:58:39,550 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:58:39,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:58:39,574 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:58:39,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-01 06:58:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:58:40,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-01 06:58:40,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:58:40,463 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-01 06:58:40,463 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:58:41,348 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-01 06:58:41,349 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:58:41,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208884229] [2024-11-01 06:58:41,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1208884229] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 06:58:41,350 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 06:58:41,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-01 06:58:41,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989698616] [2024-11-01 06:58:41,352 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 06:58:41,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-01 06:58:41,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:58:41,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-01 06:58:41,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-01 06:58:41,385 INFO L87 Difference]: Start difference. First operand has 590 states, 367 states have (on average 1.3923705722070845) internal successors, (511), 400 states have internal predecessors, (511), 191 states have call successors, (191), 31 states have call predecessors, (191), 30 states have return successors, (187), 182 states have call predecessors, (187), 187 states have call successors, (187) Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-01 06:58:41,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:58:41,521 INFO L93 Difference]: Finished difference Result 1175 states and 1803 transitions. [2024-11-01 06:58:41,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-01 06:58:41,524 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 137 [2024-11-01 06:58:41,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:58:41,537 INFO L225 Difference]: With dead ends: 1175 [2024-11-01 06:58:41,538 INFO L226 Difference]: Without dead ends: 579 [2024-11-01 06:58:41,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-01 06:58:41,549 INFO L432 NwaCegarLoop]: 885 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-01 06:58:41,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-01 06:58:41,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-11-01 06:58:41,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2024-11-01 06:58:41,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 362 states have (on average 1.3784530386740332) internal successors, (499), 389 states have internal predecessors, (499), 187 states have call successors, (187), 30 states have call predecessors, (187), 29 states have return successors, (186), 181 states have call predecessors, (186), 186 states have call successors, (186) [2024-11-01 06:58:41,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 872 transitions. [2024-11-01 06:58:41,626 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 872 transitions. Word has length 137 [2024-11-01 06:58:41,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:58:41,626 INFO L471 AbstractCegarLoop]: Abstraction has 579 states and 872 transitions. [2024-11-01 06:58:41,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-01 06:58:41,626 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 872 transitions. [2024-11-01 06:58:41,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-01 06:58:41,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:58:41,630 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:58:41,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-01 06:58:41,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:58:41,831 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:58:41,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:58:41,832 INFO L85 PathProgramCache]: Analyzing trace with hash -2139712646, now seen corresponding path program 1 times [2024-11-01 06:58:41,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:58:41,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2046088691] [2024-11-01 06:58:41,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:58:41,833 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:58:41,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:58:41,838 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:58:41,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-01 06:58:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:58:42,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 06:58:42,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:58:42,612 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-11-01 06:58:42,612 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:58:43,655 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-11-01 06:58:43,656 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:58:43,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2046088691] [2024-11-01 06:58:43,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2046088691] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 06:58:43,656 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 06:58:43,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-01 06:58:43,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373025735] [2024-11-01 06:58:43,657 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 06:58:43,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 06:58:43,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:58:43,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 06:58:43,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:58:43,663 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) [2024-11-01 06:58:43,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:58:43,803 INFO L93 Difference]: Finished difference Result 590 states and 882 transitions. [2024-11-01 06:58:43,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 06:58:43,804 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 [2024-11-01 06:58:43,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:58:43,810 INFO L225 Difference]: With dead ends: 590 [2024-11-01 06:58:43,810 INFO L226 Difference]: Without dead ends: 585 [2024-11-01 06:58:43,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:58:43,812 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 [2024-11-01 06:58:43,812 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] [2024-11-01 06:58:43,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-01 06:58:43,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 580. [2024-11-01 06:58:43,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 363 states have (on average 1.3774104683195592) internal successors, (500), 390 states have internal predecessors, (500), 187 states have call successors, (187), 30 states have call predecessors, (187), 29 states have return successors, (186), 181 states have call predecessors, (186), 186 states have call successors, (186) [2024-11-01 06:58:43,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 873 transitions. [2024-11-01 06:58:43,870 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 873 transitions. Word has length 137 [2024-11-01 06:58:43,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:58:43,872 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 873 transitions. [2024-11-01 06:58:43,872 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) [2024-11-01 06:58:43,873 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 873 transitions. [2024-11-01 06:58:43,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-01 06:58:43,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:58:43,876 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:58:43,893 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-01 06:58:44,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:58:44,077 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:58:44,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:58:44,078 INFO L85 PathProgramCache]: Analyzing trace with hash -2082454344, now seen corresponding path program 1 times [2024-11-01 06:58:44,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:58:44,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728018441] [2024-11-01 06:58:44,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:58:44,079 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:58:44,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:58:44,082 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:58:44,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-01 06:58:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:58:44,855 INFO L255 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 06:58:44,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:58:47,261 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-11-01 06:58:47,262 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:58:48,722 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-11-01 06:58:48,723 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:58:48,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728018441] [2024-11-01 06:58:48,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [728018441] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 06:58:48,723 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 06:58:48,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2024-11-01 06:58:48,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355904065] [2024-11-01 06:58:48,723 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 06:58:48,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 06:58:48,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:58:48,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 06:58:48,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:58:48,725 INFO L87 Difference]: Start difference. First operand 580 states and 873 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-01 06:58:48,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:58:48,842 INFO L93 Difference]: Finished difference Result 1132 states and 1708 transitions. [2024-11-01 06:58:48,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 06:58:48,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 137 [2024-11-01 06:58:48,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:58:48,853 INFO L225 Difference]: With dead ends: 1132 [2024-11-01 06:58:48,854 INFO L226 Difference]: Without dead ends: 1093 [2024-11-01 06:58:48,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:58:48,856 INFO L432 NwaCegarLoop]: 968 mSDtfsCounter, 793 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-01 06:58:48,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1800 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-01 06:58:48,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2024-11-01 06:58:48,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1092. [2024-11-01 06:58:48,916 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) [2024-11-01 06:58:48,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1643 transitions. [2024-11-01 06:58:48,923 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1643 transitions. Word has length 137 [2024-11-01 06:58:48,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:58:48,924 INFO L471 AbstractCegarLoop]: Abstraction has 1092 states and 1643 transitions. [2024-11-01 06:58:48,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-01 06:58:48,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1643 transitions. [2024-11-01 06:58:48,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-01 06:58:48,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:58:48,939 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] [2024-11-01 06:58:48,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-01 06:58:49,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:58:49,141 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:58:49,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:58:49,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1624036422, now seen corresponding path program 1 times [2024-11-01 06:58:49,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:58:49,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [695891532] [2024-11-01 06:58:49,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:58:49,142 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:58:49,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:58:49,146 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:58:49,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-01 06:58:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:58:50,114 INFO L255 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 06:58:50,124 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:58:50,269 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-01 06:58:50,270 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:58:51,784 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-01 06:58:51,784 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:58:51,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [695891532] [2024-11-01 06:58:51,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [695891532] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 06:58:51,785 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 06:58:51,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-01 06:58:51,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831821513] [2024-11-01 06:58:51,785 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 06:58:51,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 06:58:51,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:58:51,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 06:58:51,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:58:51,790 INFO L87 Difference]: Start difference. First operand 1092 states and 1643 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-01 06:58:52,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:58:52,146 INFO L93 Difference]: Finished difference Result 2645 states and 3956 transitions. [2024-11-01 06:58:52,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 06:58:52,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 188 [2024-11-01 06:58:52,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:58:52,159 INFO L225 Difference]: With dead ends: 2645 [2024-11-01 06:58:52,159 INFO L226 Difference]: Without dead ends: 1581 [2024-11-01 06:58:52,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:58:52,167 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-01 06:58:52,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 1671 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-01 06:58:52,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2024-11-01 06:58:52,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1572. [2024-11-01 06:58:52,314 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) [2024-11-01 06:58:52,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2341 transitions. [2024-11-01 06:58:52,329 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2341 transitions. Word has length 188 [2024-11-01 06:58:52,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:58:52,331 INFO L471 AbstractCegarLoop]: Abstraction has 1572 states and 2341 transitions. [2024-11-01 06:58:52,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-01 06:58:52,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2341 transitions. [2024-11-01 06:58:52,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-01 06:58:52,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:58:52,342 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:58:52,356 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-01 06:58:52,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:58:52,543 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:58:52,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:58:52,544 INFO L85 PathProgramCache]: Analyzing trace with hash 778144346, now seen corresponding path program 1 times [2024-11-01 06:58:52,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:58:52,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279759182] [2024-11-01 06:58:52,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:58:52,545 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:58:52,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:58:52,546 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:58:52,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-01 06:58:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:58:53,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 1446 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 06:58:53,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:58:57,385 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2024-11-01 06:58:57,385 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:59:00,582 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2024-11-01 06:59:00,582 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:59:00,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279759182] [2024-11-01 06:59:00,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1279759182] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 06:59:00,582 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 06:59:00,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2024-11-01 06:59:00,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396576989] [2024-11-01 06:59:00,583 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 06:59:00,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 06:59:00,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:59:00,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 06:59:00,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:59:00,585 INFO L87 Difference]: Start difference. First operand 1572 states and 2341 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 3 states have call successors, (99), 3 states have call predecessors, (99), 3 states have return successors, (98), 3 states have call predecessors, (98), 3 states have call successors, (98) [2024-11-01 06:59:00,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:59:00,713 INFO L93 Difference]: Finished difference Result 3106 states and 4634 transitions. [2024-11-01 06:59:00,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 06:59:00,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 3 states have call successors, (99), 3 states have call predecessors, (99), 3 states have return successors, (98), 3 states have call predecessors, (98), 3 states have call successors, (98) Word has length 395 [2024-11-01 06:59:00,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:59:00,724 INFO L225 Difference]: With dead ends: 3106 [2024-11-01 06:59:00,724 INFO L226 Difference]: Without dead ends: 1572 [2024-11-01 06:59:00,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 788 GetRequests, 787 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:59:00,732 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 [2024-11-01 06:59:00,732 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] [2024-11-01 06:59:00,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2024-11-01 06:59:00,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1572. [2024-11-01 06:59:00,815 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) [2024-11-01 06:59:00,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2337 transitions. [2024-11-01 06:59:00,825 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2337 transitions. Word has length 395 [2024-11-01 06:59:00,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:59:00,826 INFO L471 AbstractCegarLoop]: Abstraction has 1572 states and 2337 transitions. [2024-11-01 06:59:00,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 3 states have call successors, (99), 3 states have call predecessors, (99), 3 states have return successors, (98), 3 states have call predecessors, (98), 3 states have call successors, (98) [2024-11-01 06:59:00,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2337 transitions. [2024-11-01 06:59:00,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-01 06:59:00,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:59:00,833 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:59:00,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-01 06:59:01,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:59:01,034 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:59:01,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:59:01,034 INFO L85 PathProgramCache]: Analyzing trace with hash -395317217, now seen corresponding path program 1 times [2024-11-01 06:59:01,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:59:01,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2088747257] [2024-11-01 06:59:01,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:59:01,036 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:59:01,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:59:01,039 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:59:01,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-01 06:59:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:59:02,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 1459 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 06:59:02,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:59:06,983 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-01 06:59:06,983 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:59:11,933 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2024-11-01 06:59:11,934 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:59:11,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2088747257] [2024-11-01 06:59:11,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2088747257] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 06:59:11,934 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 06:59:11,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2024-11-01 06:59:11,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341183776] [2024-11-01 06:59:11,934 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 06:59:11,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-01 06:59:11,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:59:11,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-01 06:59:11,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-01 06:59:11,937 INFO L87 Difference]: Start difference. First operand 1572 states and 2337 transitions. Second operand has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 4 states have call successors, (96), 3 states have call predecessors, (96), 3 states have return successors, (95), 4 states have call predecessors, (95), 4 states have call successors, (95) [2024-11-01 06:59:12,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:59:12,474 INFO L93 Difference]: Finished difference Result 3106 states and 4626 transitions. [2024-11-01 06:59:12,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 06:59:12,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 4 states have call successors, (96), 3 states have call predecessors, (96), 3 states have return successors, (95), 4 states have call predecessors, (95), 4 states have call successors, (95) Word has length 401 [2024-11-01 06:59:12,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:59:12,488 INFO L225 Difference]: With dead ends: 3106 [2024-11-01 06:59:12,488 INFO L226 Difference]: Without dead ends: 1572 [2024-11-01 06:59:12,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 800 GetRequests, 798 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-01 06:59:12,497 INFO L432 NwaCegarLoop]: 869 mSDtfsCounter, 1075 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-01 06:59:12,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1075 Valid, 869 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-01 06:59:12,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2024-11-01 06:59:12,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1572. [2024-11-01 06:59:12,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 971 states have (on average 1.3635427394438724) internal successors, (1324), 1039 states have internal predecessors, (1324), 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) [2024-11-01 06:59:12,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2335 transitions. [2024-11-01 06:59:12,624 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2335 transitions. Word has length 401 [2024-11-01 06:59:12,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:59:12,629 INFO L471 AbstractCegarLoop]: Abstraction has 1572 states and 2335 transitions. [2024-11-01 06:59:12,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.75) internal successors, (259), 4 states have internal predecessors, (259), 4 states have call successors, (96), 3 states have call predecessors, (96), 3 states have return successors, (95), 4 states have call predecessors, (95), 4 states have call successors, (95) [2024-11-01 06:59:12,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2335 transitions. [2024-11-01 06:59:12,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2024-11-01 06:59:12,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:59:12,639 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:59:12,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-01 06:59:12,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:59:12,840 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:59:12,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:59:12,841 INFO L85 PathProgramCache]: Analyzing trace with hash -775454437, now seen corresponding path program 1 times [2024-11-01 06:59:12,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:59:12,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1872744685] [2024-11-01 06:59:12,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:59:12,841 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:59:12,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:59:12,848 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:59:12,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-01 06:59:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:59:14,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 1472 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-01 06:59:14,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:59:14,347 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2024-11-01 06:59:14,347 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:59:18,198 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2024-11-01 06:59:18,198 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:59:18,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1872744685] [2024-11-01 06:59:18,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1872744685] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-01 06:59:18,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-01 06:59:18,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-01 06:59:18,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478477532] [2024-11-01 06:59:18,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-01 06:59:18,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-01 06:59:18,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:59:18,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-01 06:59:18,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-01 06:59:18,201 INFO L87 Difference]: Start difference. First operand 1572 states and 2335 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-01 06:59:18,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:59:18,654 INFO L93 Difference]: Finished difference Result 3122 states and 4660 transitions. [2024-11-01 06:59:18,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-01 06:59:18,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) Word has length 407 [2024-11-01 06:59:18,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:59:18,670 INFO L225 Difference]: With dead ends: 3122 [2024-11-01 06:59:18,670 INFO L226 Difference]: Without dead ends: 1588 [2024-11-01 06:59:18,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 812 GetRequests, 806 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-01 06:59:18,678 INFO L432 NwaCegarLoop]: 868 mSDtfsCounter, 0 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3455 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 [2024-11-01 06:59:18,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3455 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-01 06:59:18,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2024-11-01 06:59:18,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 1588. [2024-11-01 06:59:18,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1588 states, 983 states have (on average 1.3591047812817905) internal successors, (1336), 1051 states have internal predecessors, (1336), 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) [2024-11-01 06:59:18,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 2369 transitions. [2024-11-01 06:59:18,839 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 2369 transitions. Word has length 407 [2024-11-01 06:59:18,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:59:18,840 INFO L471 AbstractCegarLoop]: Abstraction has 1588 states and 2369 transitions. [2024-11-01 06:59:18,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-01 06:59:18,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 2369 transitions. [2024-11-01 06:59:18,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2024-11-01 06:59:18,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:59:18,850 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:59:18,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-01 06:59:19,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:59:19,053 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:59:19,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:59:19,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1597743382, now seen corresponding path program 1 times [2024-11-01 06:59:19,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:59:19,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992845800] [2024-11-01 06:59:19,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:59:19,054 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:59:19,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:59:19,055 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:59:19,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-01 06:59:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:59:20,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 1482 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-01 06:59:20,271 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:59:20,606 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 395 proven. 0 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2024-11-01 06:59:20,607 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:59:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2024-11-01 06:59:24,822 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:59:24,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1992845800] [2024-11-01 06:59:24,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1992845800] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-01 06:59:24,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-01 06:59:24,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-01 06:59:24,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593131339] [2024-11-01 06:59:24,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-01 06:59:24,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-01 06:59:24,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:59:24,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-01 06:59:24,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-01 06:59:24,825 INFO L87 Difference]: Start difference. First operand 1588 states and 2369 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 2 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (56), 3 states have call predecessors, (56), 2 states have call successors, (56) [2024-11-01 06:59:25,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:59:25,182 INFO L93 Difference]: Finished difference Result 3146 states and 4702 transitions. [2024-11-01 06:59:25,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-01 06:59:25,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 2 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (56), 3 states have call predecessors, (56), 2 states have call successors, (56) Word has length 416 [2024-11-01 06:59:25,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:59:25,191 INFO L225 Difference]: With dead ends: 3146 [2024-11-01 06:59:25,192 INFO L226 Difference]: Without dead ends: 1596 [2024-11-01 06:59:25,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 830 GetRequests, 824 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-01 06:59:25,200 INFO L432 NwaCegarLoop]: 868 mSDtfsCounter, 0 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3455 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 [2024-11-01 06:59:25,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3455 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-01 06:59:25,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2024-11-01 06:59:25,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1596. [2024-11-01 06:59:25,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1596 states, 991 states have (on average 1.3562058526740666) internal successors, (1344), 1055 states have internal predecessors, (1344), 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) [2024-11-01 06:59:25,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1596 states to 1596 states and 2377 transitions. [2024-11-01 06:59:25,302 INFO L78 Accepts]: Start accepts. Automaton has 1596 states and 2377 transitions. Word has length 416 [2024-11-01 06:59:25,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:59:25,305 INFO L471 AbstractCegarLoop]: Abstraction has 1596 states and 2377 transitions. [2024-11-01 06:59:25,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 4 states have internal predecessors, (164), 2 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (56), 3 states have call predecessors, (56), 2 states have call successors, (56) [2024-11-01 06:59:25,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 2377 transitions. [2024-11-01 06:59:25,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-01 06:59:25,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:59:25,315 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] [2024-11-01 06:59:25,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2024-11-01 06:59:25,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:59:25,516 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:59:25,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:59:25,517 INFO L85 PathProgramCache]: Analyzing trace with hash 510674481, now seen corresponding path program 2 times [2024-11-01 06:59:25,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:59:25,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [810215774] [2024-11-01 06:59:25,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:59:25,517 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:59:25,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:59:25,520 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:59:25,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-01 06:59:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:59:26,667 INFO L255 TraceCheckSpWp]: Trace formula consists of 1514 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-01 06:59:26,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:59:28,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 291 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2024-11-01 06:59:28,958 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:59:32,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1026 trivial. 0 not checked. [2024-11-01 06:59:32,829 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:59:32,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [810215774] [2024-11-01 06:59:32,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [810215774] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 06:59:32,829 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 06:59:32,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2024-11-01 06:59:32,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901347055] [2024-11-01 06:59:32,829 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 06:59:32,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-01 06:59:32,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:59:32,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-01 06:59:32,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-01 06:59:32,832 INFO L87 Difference]: Start difference. First operand 1596 states and 2377 transitions. Second operand has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 5 states have call successors, (89), 3 states have call predecessors, (89), 3 states have return successors, (88), 5 states have call predecessors, (88), 5 states have call successors, (88) [2024-11-01 06:59:34,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:59:34,521 INFO L93 Difference]: Finished difference Result 3712 states and 5640 transitions. [2024-11-01 06:59:34,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-01 06:59:34,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 5 states have call successors, (89), 3 states have call predecessors, (89), 3 states have return successors, (88), 5 states have call predecessors, (88), 5 states have call successors, (88) Word has length 433 [2024-11-01 06:59:34,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:59:34,539 INFO L225 Difference]: With dead ends: 3712 [2024-11-01 06:59:34,539 INFO L226 Difference]: Without dead ends: 2154 [2024-11-01 06:59:34,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 866 GetRequests, 861 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-01 06:59:34,548 INFO L432 NwaCegarLoop]: 997 mSDtfsCounter, 1007 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-01 06:59:34,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1007 Valid, 1915 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-01 06:59:34,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2154 states. [2024-11-01 06:59:34,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2154 to 1826. [2024-11-01 06:59:34,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1826 states, 1113 states have (on average 1.3548966756513927) internal successors, (1508), 1195 states have internal predecessors, (1508), 614 states have call successors, (614), 95 states have call predecessors, (614), 98 states have return successors, (639), 605 states have call predecessors, (639), 613 states have call successors, (639) [2024-11-01 06:59:34,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1826 states to 1826 states and 2761 transitions. [2024-11-01 06:59:34,753 INFO L78 Accepts]: Start accepts. Automaton has 1826 states and 2761 transitions. Word has length 433 [2024-11-01 06:59:34,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:59:34,754 INFO L471 AbstractCegarLoop]: Abstraction has 1826 states and 2761 transitions. [2024-11-01 06:59:34,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 5 states have call successors, (89), 3 states have call predecessors, (89), 3 states have return successors, (88), 5 states have call predecessors, (88), 5 states have call successors, (88) [2024-11-01 06:59:34,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1826 states and 2761 transitions. [2024-11-01 06:59:34,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2024-11-01 06:59:34,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:59:34,763 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:59:34,779 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-01 06:59:34,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:59:34,964 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:59:34,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:59:34,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1966290433, now seen corresponding path program 1 times [2024-11-01 06:59:34,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:59:34,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1241607926] [2024-11-01 06:59:34,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:59:34,969 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:59:34,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:59:34,972 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:59:34,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-01 06:59:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:59:36,049 INFO L255 TraceCheckSpWp]: Trace formula consists of 1553 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-01 06:59:36,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:59:36,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1045 backedges. 498 proven. 0 refuted. 0 times theorem prover too weak. 547 trivial. 0 not checked. [2024-11-01 06:59:36,139 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:59:39,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1045 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2024-11-01 06:59:39,895 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:59:39,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1241607926] [2024-11-01 06:59:39,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1241607926] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 06:59:39,896 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 06:59:39,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-01 06:59:39,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270777872] [2024-11-01 06:59:39,896 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 06:59:39,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 06:59:39,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:59:39,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 06:59:39,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:59:39,898 INFO L87 Difference]: Start difference. First operand 1826 states and 2761 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2024-11-01 06:59:40,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:59:40,390 INFO L93 Difference]: Finished difference Result 3650 states and 5530 transitions. [2024-11-01 06:59:40,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 06:59:40,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) Word has length 454 [2024-11-01 06:59:40,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:59:40,413 INFO L225 Difference]: With dead ends: 3650 [2024-11-01 06:59:40,413 INFO L226 Difference]: Without dead ends: 1862 [2024-11-01 06:59:40,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 906 GetRequests, 905 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:59:40,421 INFO L432 NwaCegarLoop]: 857 mSDtfsCounter, 3 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-01 06:59:40,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1694 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-01 06:59:40,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1862 states. [2024-11-01 06:59:40,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1862 to 1862. [2024-11-01 06:59:40,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1862 states, 1149 states have (on average 1.3402959094865101) internal successors, (1540), 1231 states have internal predecessors, (1540), 614 states have call successors, (614), 95 states have call predecessors, (614), 98 states have return successors, (639), 605 states have call predecessors, (639), 613 states have call successors, (639) [2024-11-01 06:59:40,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2793 transitions. [2024-11-01 06:59:40,633 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2793 transitions. Word has length 454 [2024-11-01 06:59:40,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:59:40,634 INFO L471 AbstractCegarLoop]: Abstraction has 1862 states and 2793 transitions. [2024-11-01 06:59:40,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2024-11-01 06:59:40,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2793 transitions. [2024-11-01 06:59:40,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2024-11-01 06:59:40,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:59:40,640 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] [2024-11-01 06:59:40,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-01 06:59:40,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:59:40,842 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:59:40,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:59:40,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1287182439, now seen corresponding path program 1 times [2024-11-01 06:59:40,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:59:40,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2122393772] [2024-11-01 06:59:40,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:59:40,843 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:59:40,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:59:40,848 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:59:40,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-01 06:59:42,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:59:42,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 1531 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 06:59:42,256 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:59:43,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2024-11-01 06:59:43,455 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:59:47,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1023 trivial. 0 not checked. [2024-11-01 06:59:47,705 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:59:47,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2122393772] [2024-11-01 06:59:47,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2122393772] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 06:59:47,705 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 06:59:47,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-01 06:59:47,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30391655] [2024-11-01 06:59:47,705 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 06:59:47,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-01 06:59:47,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:59:47,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-01 06:59:47,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-01 06:59:47,707 INFO L87 Difference]: Start difference. First operand 1862 states and 2793 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 4 states have call successors, (59), 3 states have call predecessors, (59), 3 states have return successors, (58), 4 states have call predecessors, (58), 4 states have call successors, (58) [2024-11-01 06:59:51,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-01 06:59:56,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:59:56,036 INFO L93 Difference]: Finished difference Result 5439 states and 8078 transitions. [2024-11-01 06:59:56,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 06:59:56,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 4 states have call successors, (59), 3 states have call predecessors, (59), 3 states have return successors, (58), 4 states have call predecessors, (58), 4 states have call successors, (58) Word has length 446 [2024-11-01 06:59:56,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:59:56,066 INFO L225 Difference]: With dead ends: 5439 [2024-11-01 06:59:56,066 INFO L226 Difference]: Without dead ends: 3452 [2024-11-01 06:59:56,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 890 GetRequests, 888 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-01 06:59:56,077 INFO L432 NwaCegarLoop]: 1193 mSDtfsCounter, 1310 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 177 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 2306 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-01 06:59:56,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1310 Valid, 2306 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 229 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2024-11-01 06:59:56,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3452 states. [2024-11-01 06:59:56,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3452 to 3440. [2024-11-01 06:59:56,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3440 states, 2205 states have (on average 1.3605442176870748) internal successors, (3000), 2337 states have internal predecessors, (3000), 1024 states have call successors, (1024), 207 states have call predecessors, (1024), 210 states have return successors, (1047), 1007 states have call predecessors, (1047), 1023 states have call successors, (1047) [2024-11-01 06:59:56,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3440 states to 3440 states and 5071 transitions. [2024-11-01 06:59:56,428 INFO L78 Accepts]: Start accepts. Automaton has 3440 states and 5071 transitions. Word has length 446 [2024-11-01 06:59:56,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:59:56,429 INFO L471 AbstractCegarLoop]: Abstraction has 3440 states and 5071 transitions. [2024-11-01 06:59:56,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 4 states have call successors, (59), 3 states have call predecessors, (59), 3 states have return successors, (58), 4 states have call predecessors, (58), 4 states have call successors, (58) [2024-11-01 06:59:56,429 INFO L276 IsEmpty]: Start isEmpty. Operand 3440 states and 5071 transitions. [2024-11-01 06:59:56,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2024-11-01 06:59:56,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:59:56,445 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:59:56,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2024-11-01 06:59:56,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:59:56,646 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:59:56,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:59:56,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1470346047, now seen corresponding path program 1 times [2024-11-01 06:59:56,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:59:56,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699114731] [2024-11-01 06:59:56,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:59:56,647 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:59:56,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:59:56,687 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:59:56,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-01 06:59:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:59:57,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 1551 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 06:59:58,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:59:58,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1045 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 985 trivial. 0 not checked. [2024-11-01 06:59:58,096 INFO L311 TraceCheckSpWp]: Computing backward predicates...