./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i --full-output --preprocessor.use.memory.slicer false --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6ae2ee47 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2748addc8053ad023c4e3c8659303b8900a913629c960b74e135fe261e72552c --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 23:46:25,428 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 23:46:25,491 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-22 23:46:25,495 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 23:46:25,495 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 23:46:25,517 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 23:46:25,517 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 23:46:25,518 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 23:46:25,519 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 23:46:25,522 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 23:46:25,522 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 23:46:25,522 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 23:46:25,523 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 23:46:25,524 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 23:46:25,524 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 23:46:25,524 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 23:46:25,524 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 23:46:25,525 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 23:46:25,525 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 23:46:25,525 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 23:46:25,525 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 23:46:25,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 23:46:25,526 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 23:46:25,526 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 23:46:25,527 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 23:46:25,527 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 23:46:25,527 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 23:46:25,527 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 23:46:25,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 23:46:25,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 23:46:25,528 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 23:46:25,529 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 23:46:25,529 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 23:46:25,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 23:46:25,529 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 23:46:25,529 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 23:46:25,529 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 23:46:25,530 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 23:46:25,530 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 23:46:25,530 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2748addc8053ad023c4e3c8659303b8900a913629c960b74e135fe261e72552c Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-22 23:46:25,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 23:46:25,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 23:46:25,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 23:46:25,721 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 23:46:25,721 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 23:46:25,722 INFO L431 ainManager$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--atm--atmtcp.ko-entry_point.cil.out.i [2023-11-22 23:46:26,688 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 23:46:27,034 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 23:46:27,035 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2023-11-22 23:46:27,066 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7282908b9/8cee82e5754e44fc8071922098404318/FLAGd1dfec1fa [2023-11-22 23:46:27,078 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7282908b9/8cee82e5754e44fc8071922098404318 [2023-11-22 23:46:27,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 23:46:27,082 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 23:46:27,085 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 23:46:27,085 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 23:46:27,088 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 23:46:27,089 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:46:27" (1/1) ... [2023-11-22 23:46:27,090 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16f82da4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:46:27, skipping insertion in model container [2023-11-22 23:46:27,090 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:46:27" (1/1) ... [2023-11-22 23:46:27,253 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 23:46:27,809 WARN L635 FunctionHandler]: implicit declaration of function ldv_assume [2023-11-22 23:46:28,126 WARN L240 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--atm--atmtcp.ko-entry_point.cil.out.i[225414,225427] [2023-11-22 23:46:28,154 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 23:46:28,188 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 23:46:28,326 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6012] [2023-11-22 23:46:28,328 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6014] [2023-11-22 23:46:28,328 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"); [6024] [2023-11-22 23:46:28,329 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)); [6031] [2023-11-22 23:46:28,329 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; btc %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [6038] [2023-11-22 23:46:28,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [6052-6053] [2023-11-22 23:46:28,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [6060] [2023-11-22 23:46:28,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [6089] [2023-11-22 23:46:28,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6092] [2023-11-22 23:46:28,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6095] [2023-11-22 23:46:28,332 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6098] [2023-11-22 23:46:28,332 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; addl %1,%0": "+m" (v->counter): "ir" (i)); [6113] [2023-11-22 23:46:28,332 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; incl %0": "+m" (v->counter)); [6120] [2023-11-22 23:46:28,333 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; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [6128-6129] [2023-11-22 23:46:28,335 WARN L635 FunctionHandler]: implicit declaration of function ldv_assume [2023-11-22 23:46:28,351 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/atmdev.h"), "i" (271), "i" (12UL)); [6401-6402] [2023-11-22 23:46:28,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6467] [2023-11-22 23:46:28,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6489] [2023-11-22 23:46:28,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___4->state): : "memory", "cc"); [6502-6503] [2023-11-22 23:46:28,378 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___5->state): : "memory", "cc"); [6507-6508] [2023-11-22 23:46:28,378 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___6->state): : "memory", "cc"); [6512-6513] [2023-11-22 23:46:28,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___7->state): : "memory", "cc"); [6517-6518] [2023-11-22 23:46:28,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___0), "+m" (tmp___10->state): : "memory", "cc"); [6538-6539] [2023-11-22 23:46:28,380 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___0), "+m" (tmp___11->state): : "memory", "cc"); [6543-6544] [2023-11-22 23:46:28,380 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___0), "+m" (tmp___12->state): : "memory", "cc"); [6548-6549] [2023-11-22 23:46:28,380 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___0), "+m" (tmp___13->state): : "memory", "cc"); [6553-6554] [2023-11-22 23:46:28,452 WARN L240 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--atm--atmtcp.ko-entry_point.cil.out.i[225414,225427] [2023-11-22 23:46:28,470 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 23:46:28,512 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 23:46:28,512 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 23:46:28,512 WARN L675 CHandler]: The function ldv_assume is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 23:46:28,512 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 23:46:28,518 INFO L206 MainTranslator]: Completed translation [2023-11-22 23:46:28,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:46:28 WrapperNode [2023-11-22 23:46:28,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 23:46:28,519 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 23:46:28,519 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 23:46:28,519 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 23:46:28,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:46:28" (1/1) ... [2023-11-22 23:46:28,575 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:46:28" (1/1) ... [2023-11-22 23:46:28,705 INFO L138 Inliner]: procedures = 142, calls = 1110, calls flagged for inlining = 58, calls inlined = 57, statements flattened = 2482 [2023-11-22 23:46:28,706 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 23:46:28,706 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 23:46:28,706 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 23:46:28,707 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 23:46:28,713 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:46:28" (1/1) ... [2023-11-22 23:46:28,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:46:28" (1/1) ... [2023-11-22 23:46:28,726 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:46:28" (1/1) ... [2023-11-22 23:46:28,727 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:46:28" (1/1) ... [2023-11-22 23:46:28,802 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:46:28" (1/1) ... [2023-11-22 23:46:28,819 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:46:28" (1/1) ... [2023-11-22 23:46:28,832 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:46:28" (1/1) ... [2023-11-22 23:46:28,845 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:46:28" (1/1) ... [2023-11-22 23:46:28,861 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 23:46:28,864 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 23:46:28,864 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 23:46:28,864 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 23:46:28,865 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:46:28" (1/1) ... [2023-11-22 23:46:28,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 23:46:28,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:46:28,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 23:46:28,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 23:46:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure atm_sk [2023-11-22 23:46:28,953 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_sk [2023-11-22 23:46:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2023-11-22 23:46:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2023-11-22 23:46:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-22 23:46:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure change_bit [2023-11-22 23:46:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure change_bit [2023-11-22 23:46:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure atm_alloc_charge [2023-11-22 23:46:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_alloc_charge [2023-11-22 23:46:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-22 23:46:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-22 23:46:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-22 23:46:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-22 23:46:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-22 23:46:28,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-22 23:46:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-22 23:46:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-22 23:46:28,955 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-22 23:46:28,956 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-11-22 23:46:28,956 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-11-22 23:46:28,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-22 23:46:28,956 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-22 23:46:28,956 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-22 23:46:28,956 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-22 23:46:28,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-22 23:46:28,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-22 23:46:28,957 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2023-11-22 23:46:28,957 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2023-11-22 23:46:28,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2023-11-22 23:46:28,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2023-11-22 23:46:28,957 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_ioctl [2023-11-22 23:46:28,957 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_ioctl [2023-11-22 23:46:28,957 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-22 23:46:28,958 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-22 23:46:28,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-22 23:46:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-22 23:46:28,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-22 23:46:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-22 23:46:28,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-22 23:46:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-22 23:46:28,959 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-22 23:46:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-22 23:46:28,959 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-22 23:46:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_dev_close [2023-11-22 23:46:28,960 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_dev_close [2023-11-22 23:46:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-22 23:46:28,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-22 23:46:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-22 23:46:28,961 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-22 23:46:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-22 23:46:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-22 23:46:28,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-22 23:46:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2023-11-22 23:46:28,961 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2023-11-22 23:46:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 23:46:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-22 23:46:28,962 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-22 23:46:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_send [2023-11-22 23:46:28,962 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_send [2023-11-22 23:46:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-22 23:46:28,963 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-22 23:46:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-22 23:46:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 23:46:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-22 23:46:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-22 23:46:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-22 23:46:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-22 23:46:28,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-22 23:46:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_create [2023-11-22 23:46:28,964 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_create [2023-11-22 23:46:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_close [2023-11-22 23:46:28,964 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_close [2023-11-22 23:46:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2023-11-22 23:46:28,964 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2023-11-22 23:46:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 23:46:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-22 23:46:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_close [2023-11-22 23:46:28,965 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_close [2023-11-22 23:46:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-22 23:46:28,965 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-22 23:46:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_put [2023-11-22 23:46:28,965 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_put [2023-11-22 23:46:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-22 23:46:28,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-22 23:46:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_lookup [2023-11-22 23:46:28,966 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_lookup [2023-11-22 23:46:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-22 23:46:28,966 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-22 23:46:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-22 23:46:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_send [2023-11-22 23:46:28,967 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_send [2023-11-22 23:46:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-22 23:46:28,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-22 23:46:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_send_control [2023-11-22 23:46:28,968 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_send_control [2023-11-22 23:46:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-22 23:46:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2023-11-22 23:46:28,968 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2023-11-22 23:46:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 23:46:28,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 23:46:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2023-11-22 23:46:28,969 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2023-11-22 23:46:29,293 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 23:46:29,296 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 23:46:31,604 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-22 23:46:37,439 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 23:46:37,507 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 23:46:37,507 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-22 23:46:37,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:46:37 BoogieIcfgContainer [2023-11-22 23:46:37,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 23:46:37,509 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 23:46:37,509 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 23:46:37,512 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 23:46:37,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:46:27" (1/3) ... [2023-11-22 23:46:37,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c982200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:46:37, skipping insertion in model container [2023-11-22 23:46:37,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:46:28" (2/3) ... [2023-11-22 23:46:37,513 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c982200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:46:37, skipping insertion in model container [2023-11-22 23:46:37,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:46:37" (3/3) ... [2023-11-22 23:46:37,514 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2023-11-22 23:46:37,526 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 23:46:37,526 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 23:46:37,565 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 23:46:37,570 INFO L357 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, mHoare=true, 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;@27503e9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 23:46:37,571 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 23:46:37,575 INFO L276 IsEmpty]: Start isEmpty. Operand has 561 states, 381 states have (on average 1.4146981627296589) internal successors, (539), 398 states have internal predecessors, (539), 138 states have call successors, (138), 41 states have call predecessors, (138), 40 states have return successors, (133), 130 states have call predecessors, (133), 133 states have call successors, (133) [2023-11-22 23:46:37,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-22 23:46:37,583 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:46:37,584 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-11-22 23:46:37,584 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:46:37,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:46:37,588 INFO L85 PathProgramCache]: Analyzing trace with hash 966689588, now seen corresponding path program 1 times [2023-11-22 23:46:37,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:46:37,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871774803] [2023-11-22 23:46:37,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:46:37,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:46:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:37,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:46:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:46:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:46:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:46:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:46:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:46:38,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:46:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:46:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:46:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:46:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:46:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:46:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:46:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:46:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:46:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 23:46:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:46:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:46:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 23:46:38,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:46:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 23:46:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:46:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:46:38,172 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2023-11-22 23:46:38,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:46:38,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871774803] [2023-11-22 23:46:38,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871774803] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:46:38,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:46:38,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 23:46:38,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011742196] [2023-11-22 23:46:38,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:46:38,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 23:46:38,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:46:38,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 23:46:38,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-22 23:46:38,200 INFO L87 Difference]: Start difference. First operand has 561 states, 381 states have (on average 1.4146981627296589) internal successors, (539), 398 states have internal predecessors, (539), 138 states have call successors, (138), 41 states have call predecessors, (138), 40 states have return successors, (133), 130 states have call predecessors, (133), 133 states have call successors, (133) Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-22 23:46:40,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:46:42,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:46:44,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:46:46,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:46:50,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:46:52,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:46:54,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:46:56,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:46:58,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:00,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:01,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:47:01,167 INFO L93 Difference]: Finished difference Result 1227 states and 1837 transitions. [2023-11-22 23:47:01,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 23:47:01,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 113 [2023-11-22 23:47:01,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:47:01,195 INFO L225 Difference]: With dead ends: 1227 [2023-11-22 23:47:01,195 INFO L226 Difference]: Without dead ends: 659 [2023-11-22 23:47:01,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-22 23:47:01,206 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 410 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 351 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time [2023-11-22 23:47:01,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 1571 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 855 Invalid, 10 Unknown, 0 Unchecked, 22.8s Time] [2023-11-22 23:47:01,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2023-11-22 23:47:01,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 551. [2023-11-22 23:47:01,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 378 states have (on average 1.3941798941798942) internal successors, (527), 388 states have internal predecessors, (527), 133 states have call successors, (133), 40 states have call predecessors, (133), 39 states have return successors, (131), 128 states have call predecessors, (131), 131 states have call successors, (131) [2023-11-22 23:47:01,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 791 transitions. [2023-11-22 23:47:01,290 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 791 transitions. Word has length 113 [2023-11-22 23:47:01,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:47:01,291 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 791 transitions. [2023-11-22 23:47:01,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-22 23:47:01,291 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 791 transitions. [2023-11-22 23:47:01,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-22 23:47:01,298 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:47:01,298 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-11-22 23:47:01,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 23:47:01,299 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:47:01,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:47:01,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1764806360, now seen corresponding path program 1 times [2023-11-22 23:47:01,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:47:01,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89643775] [2023-11-22 23:47:01,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:47:01,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:47:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:47:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:47:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:47:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:47:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:47:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:47:01,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:47:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:47:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:47:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:47:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:47:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:47:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:47:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:47:01,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:47:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 23:47:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:47:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:47:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 23:47:01,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:47:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 23:47:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:47:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:01,781 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2023-11-22 23:47:01,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:47:01,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89643775] [2023-11-22 23:47:01,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89643775] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:47:01,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:47:01,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 23:47:01,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022777930] [2023-11-22 23:47:01,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:47:01,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 23:47:01,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:47:01,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 23:47:01,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-22 23:47:01,785 INFO L87 Difference]: Start difference. First operand 551 states and 791 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-22 23:47:04,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:06,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:08,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:10,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:12,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:14,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:16,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:18,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:21,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:25,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:27,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:29,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:31,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:33,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:35,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:37,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:39,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:41,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:43,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:45,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:47,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:48,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:47:48,674 INFO L93 Difference]: Finished difference Result 1821 states and 2664 transitions. [2023-11-22 23:47:48,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 23:47:48,675 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 113 [2023-11-22 23:47:48,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:47:48,683 INFO L225 Difference]: With dead ends: 1821 [2023-11-22 23:47:48,684 INFO L226 Difference]: Without dead ends: 1291 [2023-11-22 23:47:48,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-22 23:47:48,699 INFO L413 NwaCegarLoop]: 640 mSDtfsCounter, 1448 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 757 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 1972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 757 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.5s IncrementalHoareTripleChecker+Time [2023-11-22 23:47:48,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1548 Valid, 2087 Invalid, 1972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [757 Valid, 1194 Invalid, 21 Unknown, 0 Unchecked, 46.5s Time] [2023-11-22 23:47:48,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2023-11-22 23:47:48,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1074. [2023-11-22 23:47:48,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 741 states have (on average 1.3967611336032388) internal successors, (1035), 760 states have internal predecessors, (1035), 255 states have call successors, (255), 78 states have call predecessors, (255), 77 states have return successors, (253), 247 states have call predecessors, (253), 253 states have call successors, (253) [2023-11-22 23:47:48,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1543 transitions. [2023-11-22 23:47:48,811 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1543 transitions. Word has length 113 [2023-11-22 23:47:48,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:47:48,813 INFO L495 AbstractCegarLoop]: Abstraction has 1074 states and 1543 transitions. [2023-11-22 23:47:48,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-22 23:47:48,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1543 transitions. [2023-11-22 23:47:48,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-22 23:47:48,819 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:47:48,819 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-11-22 23:47:48,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-22 23:47:48,819 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:47:48,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:47:48,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1833924083, now seen corresponding path program 1 times [2023-11-22 23:47:48,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:47:48,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427221254] [2023-11-22 23:47:48,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:47:48,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:47:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:47:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:47:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:47:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:47:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:47:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:47:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:47:49,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:47:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:47:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:47:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:47:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:47:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:47:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:47:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:47:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 23:47:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:47:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:47:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 23:47:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:47:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 23:47:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:47:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:47:49,186 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2023-11-22 23:47:49,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:47:49,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427221254] [2023-11-22 23:47:49,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427221254] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:47:49,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:47:49,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 23:47:49,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875302351] [2023-11-22 23:47:49,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:47:49,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 23:47:49,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:47:49,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 23:47:49,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-22 23:47:49,189 INFO L87 Difference]: Start difference. First operand 1074 states and 1543 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-22 23:47:51,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:53,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:55,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:47:57,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:00,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:02,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:04,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:06,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:08,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:12,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:14,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:16,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:18,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:20,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:22,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:25,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:27,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:29,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:31,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:33,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:35,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:35,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:48:35,967 INFO L93 Difference]: Finished difference Result 3603 states and 5286 transitions. [2023-11-22 23:48:35,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 23:48:35,968 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 116 [2023-11-22 23:48:35,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:48:35,979 INFO L225 Difference]: With dead ends: 3603 [2023-11-22 23:48:35,980 INFO L226 Difference]: Without dead ends: 2548 [2023-11-22 23:48:35,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-22 23:48:35,984 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 1500 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 785 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 1944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 785 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.5s IncrementalHoareTripleChecker+Time [2023-11-22 23:48:35,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 2039 Invalid, 1944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [785 Valid, 1138 Invalid, 21 Unknown, 0 Unchecked, 46.5s Time] [2023-11-22 23:48:35,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2023-11-22 23:48:36,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 2118. [2023-11-22 23:48:36,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2118 states, 1465 states have (on average 1.3979522184300341) internal successors, (2048), 1502 states have internal predecessors, (2048), 499 states have call successors, (499), 154 states have call predecessors, (499), 153 states have return successors, (497), 485 states have call predecessors, (497), 497 states have call successors, (497) [2023-11-22 23:48:36,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2118 states to 2118 states and 3044 transitions. [2023-11-22 23:48:36,060 INFO L78 Accepts]: Start accepts. Automaton has 2118 states and 3044 transitions. Word has length 116 [2023-11-22 23:48:36,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:48:36,062 INFO L495 AbstractCegarLoop]: Abstraction has 2118 states and 3044 transitions. [2023-11-22 23:48:36,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-22 23:48:36,062 INFO L276 IsEmpty]: Start isEmpty. Operand 2118 states and 3044 transitions. [2023-11-22 23:48:36,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-22 23:48:36,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:48:36,064 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-11-22 23:48:36,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-22 23:48:36,065 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:48:36,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:48:36,065 INFO L85 PathProgramCache]: Analyzing trace with hash 699979797, now seen corresponding path program 1 times [2023-11-22 23:48:36,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:48:36,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553886226] [2023-11-22 23:48:36,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:48:36,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:48:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:48:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:48:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:48:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:48:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:48:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:48:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:48:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:48:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:48:36,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:48:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:48:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:48:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:48:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:48:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:48:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 23:48:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:48:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:48:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 23:48:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:48:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 23:48:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:48:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-22 23:48:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 23:48:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:36,488 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2023-11-22 23:48:36,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:48:36,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553886226] [2023-11-22 23:48:36,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553886226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:48:36,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:48:36,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 23:48:36,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572477070] [2023-11-22 23:48:36,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:48:36,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 23:48:36,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:48:36,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 23:48:36,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 23:48:36,491 INFO L87 Difference]: Start difference. First operand 2118 states and 3044 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-22 23:48:40,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:42,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:44,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:46,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:48,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:50,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:51,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:48:51,932 INFO L93 Difference]: Finished difference Result 4357 states and 6315 transitions. [2023-11-22 23:48:51,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 23:48:51,932 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2023-11-22 23:48:51,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:48:51,944 INFO L225 Difference]: With dead ends: 4357 [2023-11-22 23:48:51,945 INFO L226 Difference]: Without dead ends: 2260 [2023-11-22 23:48:51,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-22 23:48:51,953 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 961 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 413 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2023-11-22 23:48:51,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 1620 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 951 Invalid, 6 Unknown, 0 Unchecked, 15.2s Time] [2023-11-22 23:48:51,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2023-11-22 23:48:52,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 1786. [2023-11-22 23:48:52,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1786 states, 1241 states have (on average 1.395648670427075) internal successors, (1732), 1266 states have internal predecessors, (1732), 403 states have call successors, (403), 142 states have call predecessors, (403), 141 states have return successors, (401), 393 states have call predecessors, (401), 401 states have call successors, (401) [2023-11-22 23:48:52,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 2536 transitions. [2023-11-22 23:48:52,027 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 2536 transitions. Word has length 129 [2023-11-22 23:48:52,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:48:52,027 INFO L495 AbstractCegarLoop]: Abstraction has 1786 states and 2536 transitions. [2023-11-22 23:48:52,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-22 23:48:52,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 2536 transitions. [2023-11-22 23:48:52,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-22 23:48:52,032 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:48:52,032 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-11-22 23:48:52,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-22 23:48:52,033 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:48:52,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:48:52,033 INFO L85 PathProgramCache]: Analyzing trace with hash 64494669, now seen corresponding path program 1 times [2023-11-22 23:48:52,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:48:52,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309317006] [2023-11-22 23:48:52,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:48:52,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:48:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:48:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:48:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:48:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:48:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:48:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:48:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:48:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:48:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:48:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:48:52,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:48:52,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:48:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:48:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:48:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:48:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 23:48:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:48:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:48:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 23:48:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:48:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 23:48:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:48:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 23:48:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 23:48:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 23:48:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-22 23:48:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:48:52,581 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2023-11-22 23:48:52,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:48:52,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309317006] [2023-11-22 23:48:52,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309317006] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:48:52,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:48:52,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 23:48:52,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81680150] [2023-11-22 23:48:52,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:48:52,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 23:48:52,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:48:52,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 23:48:52,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 23:48:52,583 INFO L87 Difference]: Start difference. First operand 1786 states and 2536 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-22 23:48:56,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:48:58,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:01,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:03,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:05,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:07,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:09,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:11,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:12,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:49:12,424 INFO L93 Difference]: Finished difference Result 5650 states and 8159 transitions. [2023-11-22 23:49:12,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 23:49:12,425 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 149 [2023-11-22 23:49:12,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:49:12,440 INFO L225 Difference]: With dead ends: 5650 [2023-11-22 23:49:12,441 INFO L226 Difference]: Without dead ends: 3885 [2023-11-22 23:49:12,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-22 23:49:12,446 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 1565 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 1066 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1648 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1066 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2023-11-22 23:49:12,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1648 Valid, 1553 Invalid, 1866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1066 Valid, 792 Invalid, 8 Unknown, 0 Unchecked, 19.5s Time] [2023-11-22 23:49:12,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2023-11-22 23:49:12,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 3066. [2023-11-22 23:49:12,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 2137 states have (on average 1.4000935891436594) internal successors, (2992), 2178 states have internal predecessors, (2992), 681 states have call successors, (681), 248 states have call predecessors, (681), 247 states have return successors, (679), 671 states have call predecessors, (679), 679 states have call successors, (679) [2023-11-22 23:49:12,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 4352 transitions. [2023-11-22 23:49:12,603 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 4352 transitions. Word has length 149 [2023-11-22 23:49:12,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:49:12,604 INFO L495 AbstractCegarLoop]: Abstraction has 3066 states and 4352 transitions. [2023-11-22 23:49:12,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-22 23:49:12,604 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 4352 transitions. [2023-11-22 23:49:12,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-22 23:49:12,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:49:12,607 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2023-11-22 23:49:12,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-22 23:49:12,608 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:49:12,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:49:12,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1415466802, now seen corresponding path program 1 times [2023-11-22 23:49:12,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:49:12,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092597217] [2023-11-22 23:49:12,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:49:12,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:49:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:49:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:49:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:49:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:49:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:49:12,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:49:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:49:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:49:12,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:49:12,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:49:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:49:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:49:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:49:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:49:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:49:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 23:49:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:49:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:49:12,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 23:49:12,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:49:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 23:49:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:49:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-22 23:49:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 23:49:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:12,956 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-22 23:49:12,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:49:12,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092597217] [2023-11-22 23:49:12,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092597217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:49:12,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:49:12,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-22 23:49:12,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289333011] [2023-11-22 23:49:12,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:49:12,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 23:49:12,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:49:12,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 23:49:12,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-22 23:49:12,959 INFO L87 Difference]: Start difference. First operand 3066 states and 4352 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-22 23:49:17,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:19,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:21,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:23,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:26,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:28,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:30,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:32,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:34,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:36,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:38,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:40,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:41,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:49:41,094 INFO L93 Difference]: Finished difference Result 7390 states and 10821 transitions. [2023-11-22 23:49:41,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 23:49:41,095 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 151 [2023-11-22 23:49:41,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:49:41,115 INFO L225 Difference]: With dead ends: 7390 [2023-11-22 23:49:41,115 INFO L226 Difference]: Without dead ends: 4353 [2023-11-22 23:49:41,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-22 23:49:41,124 INFO L413 NwaCegarLoop]: 644 mSDtfsCounter, 535 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 277 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 2060 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.8s IncrementalHoareTripleChecker+Time [2023-11-22 23:49:41,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 2060 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 1175 Invalid, 12 Unknown, 0 Unchecked, 27.8s Time] [2023-11-22 23:49:41,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4353 states. [2023-11-22 23:49:41,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4353 to 3074. [2023-11-22 23:49:41,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3074 states, 2145 states have (on average 1.3986013986013985) internal successors, (3000), 2186 states have internal predecessors, (3000), 681 states have call successors, (681), 248 states have call predecessors, (681), 247 states have return successors, (679), 671 states have call predecessors, (679), 679 states have call successors, (679) [2023-11-22 23:49:41,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3074 states to 3074 states and 4360 transitions. [2023-11-22 23:49:41,275 INFO L78 Accepts]: Start accepts. Automaton has 3074 states and 4360 transitions. Word has length 151 [2023-11-22 23:49:41,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:49:41,276 INFO L495 AbstractCegarLoop]: Abstraction has 3074 states and 4360 transitions. [2023-11-22 23:49:41,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-22 23:49:41,276 INFO L276 IsEmpty]: Start isEmpty. Operand 3074 states and 4360 transitions. [2023-11-22 23:49:41,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-22 23:49:41,279 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:49:41,279 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2023-11-22 23:49:41,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-22 23:49:41,280 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:49:41,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:49:41,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1887862863, now seen corresponding path program 1 times [2023-11-22 23:49:41,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:49:41,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220177733] [2023-11-22 23:49:41,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:49:41,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:49:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:49:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:49:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:49:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:49:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:49:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:49:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:49:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:49:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:49:41,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:49:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:49:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:49:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:49:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:49:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:49:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 23:49:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:49:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:49:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 23:49:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:49:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 23:49:41,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:49:41,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-22 23:49:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-22 23:49:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:49:41,755 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-22 23:49:41,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:49:41,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220177733] [2023-11-22 23:49:41,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220177733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:49:41,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:49:41,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-22 23:49:41,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110544094] [2023-11-22 23:49:41,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:49:41,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 23:49:41,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:49:41,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 23:49:41,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-22 23:49:41,757 INFO L87 Difference]: Start difference. First operand 3074 states and 4360 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-22 23:49:46,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:48,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:50,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:52,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:56,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:49:58,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:00,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:02,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:04,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:06,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:08,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:10,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:11,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:50:11,433 INFO L93 Difference]: Finished difference Result 7406 states and 10837 transitions. [2023-11-22 23:50:11,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 23:50:11,433 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 152 [2023-11-22 23:50:11,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:50:11,452 INFO L225 Difference]: With dead ends: 7406 [2023-11-22 23:50:11,453 INFO L226 Difference]: Without dead ends: 4361 [2023-11-22 23:50:11,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-22 23:50:11,463 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 547 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 1514 mSolverCounterSat, 377 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 2731 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1514 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.4s IncrementalHoareTripleChecker+Time [2023-11-22 23:50:11,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 2731 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1514 Invalid, 12 Unknown, 0 Unchecked, 29.4s Time] [2023-11-22 23:50:11,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4361 states. [2023-11-22 23:50:11,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4361 to 3074. [2023-11-22 23:50:11,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3074 states, 2145 states have (on average 1.3986013986013985) internal successors, (3000), 2186 states have internal predecessors, (3000), 681 states have call successors, (681), 248 states have call predecessors, (681), 247 states have return successors, (679), 671 states have call predecessors, (679), 679 states have call successors, (679) [2023-11-22 23:50:11,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3074 states to 3074 states and 4360 transitions. [2023-11-22 23:50:11,640 INFO L78 Accepts]: Start accepts. Automaton has 3074 states and 4360 transitions. Word has length 152 [2023-11-22 23:50:11,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:50:11,640 INFO L495 AbstractCegarLoop]: Abstraction has 3074 states and 4360 transitions. [2023-11-22 23:50:11,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-22 23:50:11,640 INFO L276 IsEmpty]: Start isEmpty. Operand 3074 states and 4360 transitions. [2023-11-22 23:50:11,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-22 23:50:11,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:50:11,644 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-11-22 23:50:11,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-22 23:50:11,644 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:50:11,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:50:11,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1811057983, now seen corresponding path program 1 times [2023-11-22 23:50:11,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:50:11,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263298825] [2023-11-22 23:50:11,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:50:11,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:50:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:50:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:50:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:50:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:50:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:50:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:50:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:50:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:50:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:50:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:50:12,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:50:12,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:50:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:50:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:50:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:50:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 23:50:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:50:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:50:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 23:50:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:50:12,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 23:50:12,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:50:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-22 23:50:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-22 23:50:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-22 23:50:12,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-22 23:50:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:12,477 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-22 23:50:12,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:50:12,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263298825] [2023-11-22 23:50:12,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263298825] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:50:12,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:50:12,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-22 23:50:12,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442856279] [2023-11-22 23:50:12,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:50:12,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 23:50:12,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:50:12,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 23:50:12,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-22 23:50:12,478 INFO L87 Difference]: Start difference. First operand 3074 states and 4360 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-22 23:50:16,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:18,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:20,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:24,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:26,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:28,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:29,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:50:29,057 INFO L93 Difference]: Finished difference Result 6957 states and 10023 transitions. [2023-11-22 23:50:29,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 23:50:29,058 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 158 [2023-11-22 23:50:29,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:50:29,072 INFO L225 Difference]: With dead ends: 6957 [2023-11-22 23:50:29,073 INFO L226 Difference]: Without dead ends: 3912 [2023-11-22 23:50:29,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-22 23:50:29,080 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 465 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 428 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 1780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2023-11-22 23:50:29,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 2153 Invalid, 1780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 1346 Invalid, 6 Unknown, 0 Unchecked, 16.3s Time] [2023-11-22 23:50:29,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3912 states. [2023-11-22 23:50:29,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3912 to 3082. [2023-11-22 23:50:29,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3082 states, 2153 states have (on average 1.3971202972596377) internal successors, (3008), 2194 states have internal predecessors, (3008), 681 states have call successors, (681), 248 states have call predecessors, (681), 247 states have return successors, (679), 671 states have call predecessors, (679), 679 states have call successors, (679) [2023-11-22 23:50:29,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3082 states to 3082 states and 4368 transitions. [2023-11-22 23:50:29,193 INFO L78 Accepts]: Start accepts. Automaton has 3082 states and 4368 transitions. Word has length 158 [2023-11-22 23:50:29,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:50:29,194 INFO L495 AbstractCegarLoop]: Abstraction has 3082 states and 4368 transitions. [2023-11-22 23:50:29,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-22 23:50:29,194 INFO L276 IsEmpty]: Start isEmpty. Operand 3082 states and 4368 transitions. [2023-11-22 23:50:29,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-22 23:50:29,197 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:50:29,198 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2023-11-22 23:50:29,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-22 23:50:29,198 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:50:29,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:50:29,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1109231827, now seen corresponding path program 1 times [2023-11-22 23:50:29,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:50:29,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118120207] [2023-11-22 23:50:29,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:50:29,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:50:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:50:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:50:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:50:29,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:50:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:50:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:50:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:50:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:50:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:50:29,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:50:29,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:50:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:50:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 23:50:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:50:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:50:29,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 23:50:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:50:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:50:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 23:50:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:50:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 23:50:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:50:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-22 23:50:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-22 23:50:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:50:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:50:29,926 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-22 23:50:29,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:50:29,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118120207] [2023-11-22 23:50:29,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118120207] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:50:29,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:50:29,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-22 23:50:29,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136251451] [2023-11-22 23:50:29,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:50:29,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-22 23:50:29,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:50:29,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-22 23:50:29,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-22 23:50:29,927 INFO L87 Difference]: Start difference. First operand 3082 states and 4368 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-22 23:50:36,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:38,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:40,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:42,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:46,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:48,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:50,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:52,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:54,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:50:56,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15