./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 21:13:51,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 21:13:51,801 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-22 21:13:51,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 21:13:51,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 21:13:51,827 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 21:13:51,828 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 21:13:51,828 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 21:13:51,829 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 21:13:51,831 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 21:13:51,832 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 21:13:51,832 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 21:13:51,833 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 21:13:51,834 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 21:13:51,834 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 21:13:51,834 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 21:13:51,834 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 21:13:51,834 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 21:13:51,835 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 21:13:51,835 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 21:13:51,835 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 21:13:51,835 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 21:13:51,835 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 21:13:51,836 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 21:13:51,836 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 21:13:51,836 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 21:13:51,837 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 21:13:51,837 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 21:13:51,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 21:13:51,838 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 21:13:51,839 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 21:13:51,839 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 21:13:51,839 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 21:13:51,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 21:13:51,840 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 21:13:51,840 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 21:13:51,840 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 21:13:51,840 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 21:13:51,840 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 21:13:51,840 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2748addc8053ad023c4e3c8659303b8900a913629c960b74e135fe261e72552c Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-22 21:13:52,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 21:13:52,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 21:13:52,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 21:13:52,094 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 21:13:52,094 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 21:13:52,095 INFO L431 ainManager$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 21:13:52,982 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 21:13:53,350 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 21:13:53,351 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 21:13:53,389 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3a75d405/05d36fe81e004a7fab0bbb4cc683b7ac/FLAG8fae82695 [2023-11-22 21:13:53,406 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3a75d405/05d36fe81e004a7fab0bbb4cc683b7ac [2023-11-22 21:13:53,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 21:13:53,409 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 21:13:53,411 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 21:13:53,411 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 21:13:53,415 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 21:13:53,415 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:13:53" (1/1) ... [2023-11-22 21:13:53,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52e527ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:13:53, skipping insertion in model container [2023-11-22 21:13:53,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:13:53" (1/1) ... [2023-11-22 21:13:53,494 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 21:13:53,985 WARN L635 FunctionHandler]: implicit declaration of function ldv_assume [2023-11-22 21:13:54,246 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 21:13:54,271 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 21:13:54,305 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 21:13:54,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6012] [2023-11-22 21:13:54,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6014] [2023-11-22 21:13:54,440 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 21:13:54,442 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 21:13:54,442 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 21:13:54,443 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 21:13:54,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [6060] [2023-11-22 21:13:54,444 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 21:13:54,444 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 21:13:54,444 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 21:13:54,444 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 21:13:54,445 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 21:13:54,445 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 21:13:54,445 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 21:13:54,448 WARN L635 FunctionHandler]: implicit declaration of function ldv_assume [2023-11-22 21:13:54,471 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 21:13:54,479 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6467] [2023-11-22 21:13:54,487 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6489] [2023-11-22 21:13:54,490 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 21:13:54,491 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 21:13:54,491 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 21:13:54,491 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 21:13:54,492 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 21:13:54,492 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 21:13:54,492 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 21:13:54,493 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 21:13:54,593 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 21:13:54,607 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 21:13:54,646 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 21:13:54,647 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 21:13:54,647 WARN L675 CHandler]: The function ldv_assume is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 21:13:54,647 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 21:13:54,652 INFO L206 MainTranslator]: Completed translation [2023-11-22 21:13:54,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:13:54 WrapperNode [2023-11-22 21:13:54,653 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 21:13:54,654 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 21:13:54,654 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 21:13:54,654 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 21:13:54,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:13:54" (1/1) ... [2023-11-22 21:13:54,704 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:13:54" (1/1) ... [2023-11-22 21:13:54,778 INFO L138 Inliner]: procedures = 142, calls = 1110, calls flagged for inlining = 58, calls inlined = 57, statements flattened = 2482 [2023-11-22 21:13:54,781 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 21:13:54,782 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 21:13:54,782 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 21:13:54,782 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 21:13:54,789 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:13:54" (1/1) ... [2023-11-22 21:13:54,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:13:54" (1/1) ... [2023-11-22 21:13:54,811 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:13:54" (1/1) ... [2023-11-22 21:13:54,814 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:13:54" (1/1) ... [2023-11-22 21:13:54,883 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:13:54" (1/1) ... [2023-11-22 21:13:54,900 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:13:54" (1/1) ... [2023-11-22 21:13:54,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:13:54" (1/1) ... [2023-11-22 21:13:54,926 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:13:54" (1/1) ... [2023-11-22 21:13:54,940 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 21:13:54,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 21:13:54,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 21:13:54,943 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 21:13:54,944 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:13:54" (1/1) ... [2023-11-22 21:13:54,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 21:13:54,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:13:54,971 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 21:13:55,024 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 21:13:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure atm_sk [2023-11-22 21:13:55,052 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_sk [2023-11-22 21:13:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2023-11-22 21:13:55,052 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2023-11-22 21:13:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-22 21:13:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure change_bit [2023-11-22 21:13:55,053 INFO L138 BoogieDeclarations]: Found implementation of procedure change_bit [2023-11-22 21:13:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure atm_alloc_charge [2023-11-22 21:13:55,053 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_alloc_charge [2023-11-22 21:13:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-22 21:13:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-22 21:13:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-22 21:13:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-22 21:13:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-22 21:13:55,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-22 21:13:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-22 21:13:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-22 21:13:55,054 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-22 21:13:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-11-22 21:13:55,054 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-11-22 21:13:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-22 21:13:55,055 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-22 21:13:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-22 21:13:55,055 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-22 21:13:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-22 21:13:55,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-22 21:13:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2023-11-22 21:13:55,055 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2023-11-22 21:13:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2023-11-22 21:13:55,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2023-11-22 21:13:55,056 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_ioctl [2023-11-22 21:13:55,056 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_ioctl [2023-11-22 21:13:55,056 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-22 21:13:55,056 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-22 21:13:55,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-22 21:13:55,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-22 21:13:55,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-22 21:13:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-22 21:13:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-22 21:13:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-22 21:13:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-22 21:13:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-22 21:13:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-22 21:13:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_dev_close [2023-11-22 21:13:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_dev_close [2023-11-22 21:13:55,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-22 21:13:55,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-22 21:13:55,058 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-22 21:13:55,058 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-22 21:13:55,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-22 21:13:55,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-22 21:13:55,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-22 21:13:55,058 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2023-11-22 21:13:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2023-11-22 21:13:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 21:13:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-22 21:13:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-22 21:13:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_send [2023-11-22 21:13:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_send [2023-11-22 21:13:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-22 21:13:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-22 21:13:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-22 21:13:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 21:13:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-22 21:13:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-22 21:13:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-22 21:13:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-22 21:13:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-22 21:13:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_create [2023-11-22 21:13:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_create [2023-11-22 21:13:55,061 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_close [2023-11-22 21:13:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_close [2023-11-22 21:13:55,061 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2023-11-22 21:13:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2023-11-22 21:13:55,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 21:13:55,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-22 21:13:55,061 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_close [2023-11-22 21:13:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_close [2023-11-22 21:13:55,061 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-22 21:13:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-22 21:13:55,062 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_put [2023-11-22 21:13:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_put [2023-11-22 21:13:55,062 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-22 21:13:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-22 21:13:55,062 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_lookup [2023-11-22 21:13:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_lookup [2023-11-22 21:13:55,062 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-22 21:13:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-22 21:13:55,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-22 21:13:55,063 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_send [2023-11-22 21:13:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_send [2023-11-22 21:13:55,063 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-22 21:13:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-22 21:13:55,063 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_send_control [2023-11-22 21:13:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_send_control [2023-11-22 21:13:55,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-22 21:13:55,064 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2023-11-22 21:13:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2023-11-22 21:13:55,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 21:13:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 21:13:55,064 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2023-11-22 21:13:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2023-11-22 21:13:55,472 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 21:13:55,474 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 21:13:57,854 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-22 21:14:03,289 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 21:14:03,406 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 21:14:03,407 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-22 21:14:03,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:14:03 BoogieIcfgContainer [2023-11-22 21:14:03,408 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 21:14:03,409 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 21:14:03,409 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 21:14:03,412 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 21:14:03,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:13:53" (1/3) ... [2023-11-22 21:14:03,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7853c4f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:14:03, skipping insertion in model container [2023-11-22 21:14:03,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:13:54" (2/3) ... [2023-11-22 21:14:03,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7853c4f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:14:03, skipping insertion in model container [2023-11-22 21:14:03,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:14:03" (3/3) ... [2023-11-22 21:14:03,416 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 21:14:03,429 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 21:14:03,430 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 21:14:03,481 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 21:14:03,486 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;@268a9983, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 21:14:03,487 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 21:14:03,491 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 21:14:03,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-22 21:14:03,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:14:03,501 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 21:14:03,501 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:14:03,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:14:03,505 INFO L85 PathProgramCache]: Analyzing trace with hash 966689588, now seen corresponding path program 1 times [2023-11-22 21:14:03,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:14:03,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14706649] [2023-11-22 21:14:03,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:14:03,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:14:03,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:03,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:14:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:03,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:14:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:03,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:14:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:03,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 21:14:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:04,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:14:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:04,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:14:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:04,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 21:14:04,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:04,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:14:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:04,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:14:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:04,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 21:14:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:04,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:14:04,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:04,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:14:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:04,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 21:14:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:04,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:14:04,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:04,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:14:04,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:04,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 21:14:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:04,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:14:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:04,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:14:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:04,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 21:14:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:04,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:14:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:04,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 21:14:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:04,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:14:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:04,219 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 21:14:04,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:14:04,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14706649] [2023-11-22 21:14:04,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14706649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:14:04,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:14:04,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 21:14:04,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753031452] [2023-11-22 21:14:04,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:14:04,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 21:14:04,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:14:04,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 21:14:04,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-22 21:14:04,259 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 21:14:06,706 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 21:14:08,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:14:10,732 WARN L539 Checker$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 21:14:12,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:14:17,060 WARN L539 Checker$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 21:14:19,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:14:21,087 WARN L539 Checker$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 21:14:23,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:14:25,126 WARN L539 Checker$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 21:14:27,131 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 21:14:27,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:14:27,732 INFO L93 Difference]: Finished difference Result 1227 states and 1837 transitions. [2023-11-22 21:14:27,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 21:14:27,734 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 21:14:27,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:14:27,748 INFO L225 Difference]: With dead ends: 1227 [2023-11-22 21:14:27,748 INFO L226 Difference]: Without dead ends: 659 [2023-11-22 21:14:27,755 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 21:14:27,757 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 407 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 350 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2023-11-22 21:14:27,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 1578 Invalid, 1217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 857 Invalid, 10 Unknown, 0 Unchecked, 23.3s Time] [2023-11-22 21:14:27,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2023-11-22 21:14:27,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 551. [2023-11-22 21:14:27,842 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 21:14:27,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 791 transitions. [2023-11-22 21:14:27,847 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 791 transitions. Word has length 113 [2023-11-22 21:14:27,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:14:27,847 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 791 transitions. [2023-11-22 21:14:27,847 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 21:14:27,847 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 791 transitions. [2023-11-22 21:14:27,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-22 21:14:27,849 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:14:27,850 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 21:14:27,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 21:14:27,850 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:14:27,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:14:27,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1764806360, now seen corresponding path program 1 times [2023-11-22 21:14:27,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:14:27,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081425089] [2023-11-22 21:14:27,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:14:27,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:14:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:14:28,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:14:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:14:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 21:14:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:14:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:14:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 21:14:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:14:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:14:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 21:14:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:14:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:14:28,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 21:14:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:14:28,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:14:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 21:14:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:14:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:14:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 21:14:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:14:28,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 21:14:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:14:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:14:28,245 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 21:14:28,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:14:28,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081425089] [2023-11-22 21:14:28,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081425089] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:14:28,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:14:28,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 21:14:28,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809671663] [2023-11-22 21:14:28,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:14:28,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 21:14:28,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:14:28,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 21:14:28,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:14:28,248 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 21:14:30,722 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 21:14:32,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:14:34,748 WARN L539 Checker$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 21:14:36,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:14:39,329 WARN L539 Checker$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 21:14:41,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:14:43,348 WARN L539 Checker$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 21:14:45,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:14:47,367 WARN L539 Checker$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 21:14:51,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:14:53,866 WARN L539 Checker$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 21:14:55,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:14:58,114 WARN L539 Checker$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 21:15:00,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:15:02,130 WARN L539 Checker$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 21:15:04,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:15:06,170 WARN L539 Checker$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 21:15:08,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:15:10,207 WARN L539 Checker$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 21:15:12,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:15:14,229 WARN L539 Checker$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 21:15:15,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:15:15,020 INFO L93 Difference]: Finished difference Result 1821 states and 2664 transitions. [2023-11-22 21:15:15,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 21:15:15,021 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 21:15:15,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:15:15,053 INFO L225 Difference]: With dead ends: 1821 [2023-11-22 21:15:15,053 INFO L226 Difference]: Without dead ends: 1291 [2023-11-22 21:15:15,055 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 21:15:15,055 INFO L413 NwaCegarLoop]: 638 mSDtfsCounter, 1457 mSDsluCounter, 1448 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 758 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1557 SdHoareTripleChecker+Valid, 2086 SdHoareTripleChecker+Invalid, 1970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 758 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.5s IncrementalHoareTripleChecker+Time [2023-11-22 21:15:15,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1557 Valid, 2086 Invalid, 1970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [758 Valid, 1191 Invalid, 21 Unknown, 0 Unchecked, 46.5s Time] [2023-11-22 21:15:15,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2023-11-22 21:15:15,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1074. [2023-11-22 21:15:15,113 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 21:15:15,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1543 transitions. [2023-11-22 21:15:15,118 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1543 transitions. Word has length 113 [2023-11-22 21:15:15,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:15:15,119 INFO L495 AbstractCegarLoop]: Abstraction has 1074 states and 1543 transitions. [2023-11-22 21:15:15,119 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 21:15:15,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1543 transitions. [2023-11-22 21:15:15,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-22 21:15:15,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:15:15,121 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 21:15:15,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-22 21:15:15,122 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:15:15,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:15:15,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1833924083, now seen corresponding path program 1 times [2023-11-22 21:15:15,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:15:15,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332398199] [2023-11-22 21:15:15,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:15:15,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:15:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:15:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:15:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:15:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 21:15:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:15:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:15:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 21:15:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:15:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:15:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 21:15:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:15:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:15:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 21:15:15,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:15:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:15:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 21:15:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:15:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:15:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 21:15:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:15:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 21:15:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:15:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:15:15,545 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 21:15:15,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:15:15,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332398199] [2023-11-22 21:15:15,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332398199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:15:15,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:15:15,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 21:15:15,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146594430] [2023-11-22 21:15:15,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:15:15,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 21:15:15,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:15:15,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 21:15:15,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:15:15,548 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 21:15:17,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:15:19,998 WARN L539 Checker$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 21:15:22,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:15:24,025 WARN L539 Checker$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 21:15:26,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:15:28,820 WARN L539 Checker$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 21:15:30,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:15:32,849 WARN L539 Checker$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 21:15:34,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:15:39,312 WARN L539 Checker$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 21:15:41,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:15:43,333 WARN L539 Checker$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 21:15:45,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:15:47,423 WARN L539 Checker$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 21:15:49,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:15:51,606 WARN L539 Checker$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 21:15:53,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:15:55,621 WARN L539 Checker$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 21:15:57,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:15:59,671 WARN L539 Checker$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 21:16:01,680 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 21:16:02,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:16:02,552 INFO L93 Difference]: Finished difference Result 3603 states and 5286 transitions. [2023-11-22 21:16:02,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 21:16:02,553 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 21:16:02,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:16:02,564 INFO L225 Difference]: With dead ends: 3603 [2023-11-22 21:16:02,564 INFO L226 Difference]: Without dead ends: 2548 [2023-11-22 21:16:02,568 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 21:16:02,568 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 1500 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 787 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 2034 SdHoareTripleChecker+Invalid, 1945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 787 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.7s IncrementalHoareTripleChecker+Time [2023-11-22 21:16:02,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 2034 Invalid, 1945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [787 Valid, 1137 Invalid, 21 Unknown, 0 Unchecked, 46.7s Time] [2023-11-22 21:16:02,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2023-11-22 21:16:02,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 2118. [2023-11-22 21:16:02,661 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 21:16:02,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2118 states to 2118 states and 3044 transitions. [2023-11-22 21:16:02,668 INFO L78 Accepts]: Start accepts. Automaton has 2118 states and 3044 transitions. Word has length 116 [2023-11-22 21:16:02,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:16:02,669 INFO L495 AbstractCegarLoop]: Abstraction has 2118 states and 3044 transitions. [2023-11-22 21:16:02,669 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 21:16:02,669 INFO L276 IsEmpty]: Start isEmpty. Operand 2118 states and 3044 transitions. [2023-11-22 21:16:02,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-22 21:16:02,676 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:16:02,676 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 21:16:02,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-22 21:16:02,676 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:16:02,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:16:02,677 INFO L85 PathProgramCache]: Analyzing trace with hash 699979797, now seen corresponding path program 1 times [2023-11-22 21:16:02,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:16:02,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55097112] [2023-11-22 21:16:02,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:16:02,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:16:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:16:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 21:16:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:16:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 21:16:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:16:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 21:16:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:16:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 21:16:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:16:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 21:16:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:16:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 21:16:02,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 21:16:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-22 21:16:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 21:16:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:02,983 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 21:16:02,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:16:02,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55097112] [2023-11-22 21:16:02,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55097112] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:16:02,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:16:02,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 21:16:02,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684308507] [2023-11-22 21:16:02,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:16:02,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 21:16:02,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:16:02,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 21:16:02,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:16:02,987 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 21:16:06,630 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 21:16:08,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:16:10,649 WARN L539 Checker$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 21:16:13,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:16:15,017 WARN L539 Checker$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 21:16:17,029 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 21:16:18,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:16:18,140 INFO L93 Difference]: Finished difference Result 4357 states and 6315 transitions. [2023-11-22 21:16:18,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 21:16:18,141 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 21:16:18,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:16:18,150 INFO L225 Difference]: With dead ends: 4357 [2023-11-22 21:16:18,151 INFO L226 Difference]: Without dead ends: 2260 [2023-11-22 21:16:18,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-22 21:16:18,158 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 961 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 413 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 1619 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2023-11-22 21:16:18,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 1619 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 948 Invalid, 6 Unknown, 0 Unchecked, 14.9s Time] [2023-11-22 21:16:18,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2023-11-22 21:16:18,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 1786. [2023-11-22 21:16:18,216 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 21:16:18,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 2536 transitions. [2023-11-22 21:16:18,222 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 2536 transitions. Word has length 129 [2023-11-22 21:16:18,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:16:18,222 INFO L495 AbstractCegarLoop]: Abstraction has 1786 states and 2536 transitions. [2023-11-22 21:16:18,222 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 21:16:18,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 2536 transitions. [2023-11-22 21:16:18,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-22 21:16:18,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:16:18,228 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 21:16:18,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-22 21:16:18,228 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:16:18,228 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:16:18,229 INFO L85 PathProgramCache]: Analyzing trace with hash 64494669, now seen corresponding path program 1 times [2023-11-22 21:16:18,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:16:18,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101198914] [2023-11-22 21:16:18,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:16:18,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:16:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:18,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:16:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 21:16:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:16:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 21:16:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:16:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 21:16:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:16:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 21:16:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:16:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 21:16:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:16:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 21:16:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 21:16:18,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:18,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 21:16:18,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:16:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 21:16:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-22 21:16:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:18,622 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 21:16:18,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:16:18,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101198914] [2023-11-22 21:16:18,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101198914] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:16:18,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:16:18,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 21:16:18,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079483154] [2023-11-22 21:16:18,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:16:18,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 21:16:18,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:16:18,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 21:16:18,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:16:18,624 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 21:16:22,374 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 21:16:24,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:16:26,625 WARN L539 Checker$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 21:16:28,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:16:31,222 WARN L539 Checker$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 21:16:33,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:16:35,318 WARN L539 Checker$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 21:16:37,326 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 21:16:37,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:16:37,952 INFO L93 Difference]: Finished difference Result 5650 states and 8159 transitions. [2023-11-22 21:16:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 21:16:37,952 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 21:16:37,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:16:37,967 INFO L225 Difference]: With dead ends: 5650 [2023-11-22 21:16:37,968 INFO L226 Difference]: Without dead ends: 3885 [2023-11-22 21:16:37,973 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 21:16:37,973 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 1565 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 1066 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1648 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1066 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2023-11-22 21:16:37,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1648 Valid, 1556 Invalid, 1867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1066 Valid, 793 Invalid, 8 Unknown, 0 Unchecked, 19.0s Time] [2023-11-22 21:16:37,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2023-11-22 21:16:38,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 3066. [2023-11-22 21:16:38,069 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 21:16:38,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 4352 transitions. [2023-11-22 21:16:38,078 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 4352 transitions. Word has length 149 [2023-11-22 21:16:38,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:16:38,078 INFO L495 AbstractCegarLoop]: Abstraction has 3066 states and 4352 transitions. [2023-11-22 21:16:38,078 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 21:16:38,078 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 4352 transitions. [2023-11-22 21:16:38,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-22 21:16:38,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:16:38,081 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 21:16:38,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-22 21:16:38,082 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:16:38,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:16:38,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1415466802, now seen corresponding path program 1 times [2023-11-22 21:16:38,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:16:38,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948196479] [2023-11-22 21:16:38,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:16:38,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:16:38,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:16:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 21:16:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:16:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 21:16:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:16:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 21:16:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:38,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:16:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 21:16:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:16:38,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 21:16:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:38,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:16:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 21:16:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 21:16:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:16:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-22 21:16:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 21:16:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:16:38,596 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 21:16:38,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:16:38,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948196479] [2023-11-22 21:16:38,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948196479] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:16:38,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:16:38,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-22 21:16:38,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497080908] [2023-11-22 21:16:38,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:16:38,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 21:16:38,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:16:38,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 21:16:38,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-22 21:16:38,597 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 21:16:43,194 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 21:16:45,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:16:47,214 WARN L539 Checker$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 21:16:49,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:16:52,166 WARN L539 Checker$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 21:16:54,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:16:56,189 WARN L539 Checker$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 21:16:58,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:17:00,256 WARN L539 Checker$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 21:17:02,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:17:04,282 WARN L539 Checker$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 21:17:06,296 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 21:17:06,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:17:06,761 INFO L93 Difference]: Finished difference Result 7390 states and 10821 transitions. [2023-11-22 21:17:06,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 21:17:06,762 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 21:17:06,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:17:06,782 INFO L225 Difference]: With dead ends: 7390 [2023-11-22 21:17:06,782 INFO L226 Difference]: Without dead ends: 4353 [2023-11-22 21:17:06,791 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 21:17:06,792 INFO L413 NwaCegarLoop]: 644 mSDtfsCounter, 535 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 277 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 2059 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time [2023-11-22 21:17:06,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 2059 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 1175 Invalid, 12 Unknown, 0 Unchecked, 27.9s Time] [2023-11-22 21:17:06,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4353 states. [2023-11-22 21:17:06,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4353 to 3074. [2023-11-22 21:17:06,944 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 21:17:06,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3074 states to 3074 states and 4360 transitions. [2023-11-22 21:17:06,953 INFO L78 Accepts]: Start accepts. Automaton has 3074 states and 4360 transitions. Word has length 151 [2023-11-22 21:17:06,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:17:06,954 INFO L495 AbstractCegarLoop]: Abstraction has 3074 states and 4360 transitions. [2023-11-22 21:17:06,954 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 21:17:06,954 INFO L276 IsEmpty]: Start isEmpty. Operand 3074 states and 4360 transitions. [2023-11-22 21:17:06,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-22 21:17:06,957 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:17:06,957 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 21:17:06,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-22 21:17:06,958 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:17:06,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:17:06,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1887862863, now seen corresponding path program 1 times [2023-11-22 21:17:06,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:17:06,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316332279] [2023-11-22 21:17:06,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:17:06,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:17:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:17:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 21:17:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:17:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 21:17:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:17:07,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 21:17:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:17:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 21:17:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:17:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 21:17:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:17:07,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 21:17:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 21:17:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-22 21:17:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-22 21:17:07,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:07,402 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 21:17:07,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:17:07,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316332279] [2023-11-22 21:17:07,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316332279] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:17:07,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:17:07,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-22 21:17:07,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891344732] [2023-11-22 21:17:07,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:17:07,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 21:17:07,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:17:07,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 21:17:07,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-22 21:17:07,403 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 21:17:11,855 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 21:17:13,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:17:15,872 WARN L539 Checker$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 21:17:17,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:17:21,323 WARN L539 Checker$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 21:17:23,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:17:25,351 WARN L539 Checker$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 21:17:27,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:17:29,455 WARN L539 Checker$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 21:17:31,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:17:33,480 WARN L539 Checker$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 21:17:35,489 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 21:17:36,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:17:36,151 INFO L93 Difference]: Finished difference Result 7406 states and 10837 transitions. [2023-11-22 21:17:36,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 21:17:36,152 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 21:17:36,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:17:36,168 INFO L225 Difference]: With dead ends: 7406 [2023-11-22 21:17:36,168 INFO L226 Difference]: Without dead ends: 4361 [2023-11-22 21:17:36,175 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 21:17:36,175 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 547 mSDsluCounter, 2081 mSDsCounter, 0 mSdLazyCounter, 1518 mSolverCounterSat, 377 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 2727 SdHoareTripleChecker+Invalid, 1907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1518 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.5s IncrementalHoareTripleChecker+Time [2023-11-22 21:17:36,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 2727 Invalid, 1907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1518 Invalid, 12 Unknown, 0 Unchecked, 28.5s Time] [2023-11-22 21:17:36,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4361 states. [2023-11-22 21:17:36,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4361 to 3074. [2023-11-22 21:17:36,293 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 21:17:36,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3074 states to 3074 states and 4360 transitions. [2023-11-22 21:17:36,300 INFO L78 Accepts]: Start accepts. Automaton has 3074 states and 4360 transitions. Word has length 152 [2023-11-22 21:17:36,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:17:36,301 INFO L495 AbstractCegarLoop]: Abstraction has 3074 states and 4360 transitions. [2023-11-22 21:17:36,301 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 21:17:36,301 INFO L276 IsEmpty]: Start isEmpty. Operand 3074 states and 4360 transitions. [2023-11-22 21:17:36,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-22 21:17:36,304 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:17:36,304 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 21:17:36,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-22 21:17:36,305 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:17:36,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:17:36,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1811057983, now seen corresponding path program 1 times [2023-11-22 21:17:36,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:17:36,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607122291] [2023-11-22 21:17:36,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:17:36,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:17:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:36,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:36,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:37,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:17:37,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 21:17:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:17:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 21:17:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:17:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 21:17:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:17:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 21:17:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:17:37,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 21:17:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:37,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:17:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 21:17:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 21:17:37,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-22 21:17:37,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-22 21:17:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-22 21:17:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-22 21:17:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:37,185 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 21:17:37,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:17:37,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607122291] [2023-11-22 21:17:37,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607122291] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:17:37,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:17:37,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-22 21:17:37,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716445230] [2023-11-22 21:17:37,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:17:37,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 21:17:37,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:17:37,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 21:17:37,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-22 21:17:37,187 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 21:17:41,563 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 21:17:43,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:17:45,584 WARN L539 Checker$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 21:17:48,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:17:50,867 WARN L539 Checker$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 21:17:52,877 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 21:17:53,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:17:53,504 INFO L93 Difference]: Finished difference Result 6957 states and 10023 transitions. [2023-11-22 21:17:53,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 21:17:53,505 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 21:17:53,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:17:53,520 INFO L225 Difference]: With dead ends: 6957 [2023-11-22 21:17:53,520 INFO L226 Difference]: Without dead ends: 3912 [2023-11-22 21:17:53,528 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 21:17:53,529 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 465 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 429 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 1776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2023-11-22 21:17:53,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 2153 Invalid, 1776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 1341 Invalid, 6 Unknown, 0 Unchecked, 16.0s Time] [2023-11-22 21:17:53,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3912 states. [2023-11-22 21:17:53,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3912 to 3082. [2023-11-22 21:17:53,673 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 21:17:53,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3082 states to 3082 states and 4368 transitions. [2023-11-22 21:17:53,681 INFO L78 Accepts]: Start accepts. Automaton has 3082 states and 4368 transitions. Word has length 158 [2023-11-22 21:17:53,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:17:53,682 INFO L495 AbstractCegarLoop]: Abstraction has 3082 states and 4368 transitions. [2023-11-22 21:17:53,682 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 21:17:53,683 INFO L276 IsEmpty]: Start isEmpty. Operand 3082 states and 4368 transitions. [2023-11-22 21:17:53,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-22 21:17:53,686 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:17:53,686 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 21:17:53,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-22 21:17:53,686 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:17:53,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:17:53,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1109231827, now seen corresponding path program 1 times [2023-11-22 21:17:53,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:17:53,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900514121] [2023-11-22 21:17:53,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:17:53,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:17:53,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:53,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:17:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 21:17:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:17:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 21:17:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:17:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 21:17:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:17:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 21:17:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:17:54,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-22 21:17:54,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 21:17:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 21:17:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 21:17:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-22 21:17:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-22 21:17:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:17:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:17:54,359 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 21:17:54,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:17:54,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900514121] [2023-11-22 21:17:54,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900514121] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:17:54,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:17:54,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-22 21:17:54,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105554393] [2023-11-22 21:17:54,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:17:54,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-22 21:17:54,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:17:54,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-22 21:17:54,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-22 21:17:54,361 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 21:17:59,895 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 21:18:01,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:18:03,919 WARN L539 Checker$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 21:18:05,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:18:09,788 WARN L539 Checker$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 21:18:11,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:18:13,819 WARN L539 Checker$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 21:18:15,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:18:17,898 WARN L539 Checker$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 21:18:19,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:18:21,921 WARN L539 Checker$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 21:18:23,933 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