./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 fba957c5 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-fba957c-m [2023-11-23 10:22:48,865 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 10:22:48,938 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 10:22:48,944 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 10:22:48,944 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 10:22:48,972 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 10:22:48,972 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 10:22:48,973 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 10:22:48,974 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 10:22:48,977 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 10:22:48,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 10:22:48,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 10:22:48,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 10:22:48,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 10:22:48,979 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 10:22:48,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 10:22:48,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 10:22:48,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 10:22:48,980 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 10:22:48,980 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 10:22:48,981 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 10:22:48,981 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 10:22:48,981 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 10:22:48,981 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 10:22:48,982 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 10:22:48,982 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 10:22:48,982 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 10:22:48,982 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 10:22:48,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 10:22:48,983 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 10:22:48,984 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 10:22:48,984 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 10:22:48,984 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 10:22:48,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 10:22:48,985 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 10:22:48,985 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 10:22:48,985 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 10:22:48,985 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 10:22:48,985 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 10:22:48,985 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2748addc8053ad023c4e3c8659303b8900a913629c960b74e135fe261e72552c Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-23 10:22:49,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 10:22:49,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 10:22:49,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 10:22:49,236 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 10:22:49,236 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 10:22:49,237 INFO L431 ainManager$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 [2023-11-23 10:22:50,389 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 10:22:50,842 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 10:22:50,843 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 [2023-11-23 10:22:50,879 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66da66af2/2e12fa74d8d34bfc9c61d87b17235dd8/FLAG9a621521a [2023-11-23 10:22:50,892 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66da66af2/2e12fa74d8d34bfc9c61d87b17235dd8 [2023-11-23 10:22:50,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 10:22:50,896 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 10:22:50,899 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 10:22:50,899 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 10:22:50,903 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 10:22:50,904 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:22:50" (1/1) ... [2023-11-23 10:22:50,905 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bc5104e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:50, skipping insertion in model container [2023-11-23 10:22:50,905 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:22:50" (1/1) ... [2023-11-23 10:22:51,033 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 10:22:51,583 WARN L635 FunctionHandler]: implicit declaration of function ldv_assume [2023-11-23 10:22:51,894 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] [2023-11-23 10:22:51,926 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 10:22:51,959 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 10:22:52,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6012] [2023-11-23 10:22:52,052 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6014] [2023-11-23 10:22:52,053 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] [2023-11-23 10:22:52,055 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] [2023-11-23 10:22:52,055 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] [2023-11-23 10:22:52,056 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] [2023-11-23 10:22:52,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [6060] [2023-11-23 10:22:52,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [6089] [2023-11-23 10:22:52,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6092] [2023-11-23 10:22:52,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6095] [2023-11-23 10:22:52,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6098] [2023-11-23 10:22:52,059 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] [2023-11-23 10:22:52,059 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] [2023-11-23 10:22:52,059 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] [2023-11-23 10:22:52,062 WARN L635 FunctionHandler]: implicit declaration of function ldv_assume [2023-11-23 10:22:52,083 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] [2023-11-23 10:22:52,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6467] [2023-11-23 10:22:52,152 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6489] [2023-11-23 10:22:52,154 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] [2023-11-23 10:22:52,154 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] [2023-11-23 10:22:52,154 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] [2023-11-23 10:22:52,155 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] [2023-11-23 10:22:52,155 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] [2023-11-23 10:22:52,155 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] [2023-11-23 10:22:52,155 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] [2023-11-23 10:22:52,156 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] [2023-11-23 10:22:52,223 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] [2023-11-23 10:22:52,236 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 10:22:52,279 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 10:22:52,279 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 10:22:52,279 WARN L675 CHandler]: The function ldv_assume is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 10:22:52,280 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 10:22:52,286 INFO L206 MainTranslator]: Completed translation [2023-11-23 10:22:52,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:52 WrapperNode [2023-11-23 10:22:52,286 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 10:22:52,287 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 10:22:52,287 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 10:22:52,288 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 10:22:52,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:52" (1/1) ... [2023-11-23 10:22:52,352 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:52" (1/1) ... [2023-11-23 10:22:52,429 INFO L138 Inliner]: procedures = 142, calls = 1110, calls flagged for inlining = 58, calls inlined = 57, statements flattened = 2482 [2023-11-23 10:22:52,430 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 10:22:52,431 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 10:22:52,431 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 10:22:52,431 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 10:22:52,439 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:52" (1/1) ... [2023-11-23 10:22:52,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:52" (1/1) ... [2023-11-23 10:22:52,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:52" (1/1) ... [2023-11-23 10:22:52,481 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:52" (1/1) ... [2023-11-23 10:22:52,546 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:52" (1/1) ... [2023-11-23 10:22:52,561 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:52" (1/1) ... [2023-11-23 10:22:52,575 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:52" (1/1) ... [2023-11-23 10:22:52,588 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:52" (1/1) ... [2023-11-23 10:22:52,603 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 10:22:52,607 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 10:22:52,607 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 10:22:52,608 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 10:22:52,608 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:52" (1/1) ... [2023-11-23 10:22:52,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 10:22:52,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:22:52,634 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) [2023-11-23 10:22:52,660 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 [2023-11-23 10:22:52,680 INFO L130 BoogieDeclarations]: Found specification of procedure atm_sk [2023-11-23 10:22:52,680 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_sk [2023-11-23 10:22:52,680 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2023-11-23 10:22:52,681 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2023-11-23 10:22:52,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 10:22:52,681 INFO L130 BoogieDeclarations]: Found specification of procedure change_bit [2023-11-23 10:22:52,682 INFO L138 BoogieDeclarations]: Found implementation of procedure change_bit [2023-11-23 10:22:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure atm_alloc_charge [2023-11-23 10:22:52,682 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_alloc_charge [2023-11-23 10:22:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 10:22:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-23 10:22:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 10:22:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 10:22:52,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 10:22:52,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 10:22:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 10:22:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 10:22:52,683 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 10:22:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-11-23 10:22:52,683 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-11-23 10:22:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 10:22:52,683 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 10:22:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 10:22:52,684 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 10:22:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 10:22:52,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 10:22:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2023-11-23 10:22:52,684 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2023-11-23 10:22:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2023-11-23 10:22:52,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2023-11-23 10:22:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_ioctl [2023-11-23 10:22:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_ioctl [2023-11-23 10:22:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 10:22:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 10:22:52,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 10:22:52,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 10:22:52,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 10:22:52,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 10:22:52,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 10:22:52,687 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-23 10:22:52,687 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-23 10:22:52,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 10:22:52,687 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 10:22:52,687 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_dev_close [2023-11-23 10:22:52,687 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_dev_close [2023-11-23 10:22:52,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 10:22:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 10:22:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 10:22:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 10:22:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 10:22:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 10:22:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 10:22:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2023-11-23 10:22:52,689 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2023-11-23 10:22:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 10:22:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-23 10:22:52,689 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-23 10:22:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_send [2023-11-23 10:22:52,689 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_send [2023-11-23 10:22:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 10:22:52,690 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 10:22:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 10:22:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 10:22:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 10:22:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 10:22:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 10:22:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 10:22:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 10:22:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_create [2023-11-23 10:22:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_create [2023-11-23 10:22:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_close [2023-11-23 10:22:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_close [2023-11-23 10:22:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2023-11-23 10:22:52,691 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2023-11-23 10:22:52,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 10:22:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 10:22:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_close [2023-11-23 10:22:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_close [2023-11-23 10:22:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-23 10:22:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-23 10:22:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_put [2023-11-23 10:22:52,692 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_put [2023-11-23 10:22:52,692 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-23 10:22:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-23 10:22:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_lookup [2023-11-23 10:22:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_lookup [2023-11-23 10:22:52,693 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 10:22:52,693 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 10:22:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 10:22:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_send [2023-11-23 10:22:52,694 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_send [2023-11-23 10:22:52,694 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 10:22:52,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 10:22:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_send_control [2023-11-23 10:22:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_send_control [2023-11-23 10:22:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 10:22:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2023-11-23 10:22:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2023-11-23 10:22:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 10:22:52,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 10:22:52,695 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2023-11-23 10:22:52,696 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2023-11-23 10:22:53,065 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 10:22:53,067 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 10:22:55,411 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 10:23:01,201 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 10:23:01,357 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 10:23:01,358 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 10:23:01,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:23:01 BoogieIcfgContainer [2023-11-23 10:23:01,359 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 10:23:01,360 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 10:23:01,360 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 10:23:01,363 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 10:23:01,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:22:50" (1/3) ... [2023-11-23 10:23:01,365 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c2444c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:23:01, skipping insertion in model container [2023-11-23 10:23:01,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:22:52" (2/3) ... [2023-11-23 10:23:01,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c2444c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:23:01, skipping insertion in model container [2023-11-23 10:23:01,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:23:01" (3/3) ... [2023-11-23 10:23:01,368 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2023-11-23 10:23:01,382 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 10:23:01,383 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 10:23:01,443 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 10:23:01,450 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;@2467b15, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 10:23:01,450 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 10:23:01,457 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) [2023-11-23 10:23:01,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-23 10:23:01,471 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:23:01,473 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] [2023-11-23 10:23:01,473 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:23:01,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:23:01,479 INFO L85 PathProgramCache]: Analyzing trace with hash 966689588, now seen corresponding path program 1 times [2023-11-23 10:23:01,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:23:01,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412719282] [2023-11-23 10:23:01,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:23:01,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:23:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:02,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:23:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:23:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:23:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:02,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:23:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 10:23:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:23:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 10:23:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:02,338 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2023-11-23 10:23:02,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:23:02,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412719282] [2023-11-23 10:23:02,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412719282] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:23:02,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:23:02,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 10:23:02,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895904180] [2023-11-23 10:23:02,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:23:02,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 10:23:02,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:23:02,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 10:23:02,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 10:23:02,368 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) [2023-11-23 10:23:04,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:06,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:08,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:10,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:15,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:17,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:19,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:21,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:23,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:25,275 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 [] [2023-11-23 10:23:25,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:23:25,924 INFO L93 Difference]: Finished difference Result 1227 states and 1837 transitions. [2023-11-23 10:23:25,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 10:23:25,927 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 [2023-11-23 10:23:25,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:23:25,949 INFO L225 Difference]: With dead ends: 1227 [2023-11-23 10:23:25,950 INFO L226 Difference]: Without dead ends: 659 [2023-11-23 10:23:25,956 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 [2023-11-23 10:23:25,961 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 410 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 351 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2023-11-23 10:23:25,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 1575 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 855 Invalid, 10 Unknown, 0 Unchecked, 23.3s Time] [2023-11-23 10:23:25,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2023-11-23 10:23:26,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 551. [2023-11-23 10:23:26,130 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) [2023-11-23 10:23:26,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 791 transitions. [2023-11-23 10:23:26,137 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 791 transitions. Word has length 113 [2023-11-23 10:23:26,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:23:26,137 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 791 transitions. [2023-11-23 10:23:26,140 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) [2023-11-23 10:23:26,140 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 791 transitions. [2023-11-23 10:23:26,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-23 10:23:26,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:23:26,147 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] [2023-11-23 10:23:26,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 10:23:26,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:23:26,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:23:26,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1764806360, now seen corresponding path program 1 times [2023-11-23 10:23:26,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:23:26,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338335377] [2023-11-23 10:23:26,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:23:26,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:23:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:26,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:23:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:23:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:23:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:23:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:26,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 10:23:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:23:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:23:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 10:23:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:23:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:23:26,735 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2023-11-23 10:23:26,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:23:26,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338335377] [2023-11-23 10:23:26,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338335377] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:23:26,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:23:26,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 10:23:26,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242960951] [2023-11-23 10:23:26,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:23:26,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 10:23:26,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:23:26,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 10:23:26,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 10:23:26,743 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) [2023-11-23 10:23:29,364 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 [] [2023-11-23 10:23:31,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:33,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:35,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:37,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:39,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:41,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:43,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:45,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:50,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:52,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:54,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:56,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:23:58,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:00,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:02,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:05,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:07,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:09,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:11,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:13,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:14,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:24:14,017 INFO L93 Difference]: Finished difference Result 1821 states and 2664 transitions. [2023-11-23 10:24:14,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 10:24:14,017 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 [2023-11-23 10:24:14,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:24:14,025 INFO L225 Difference]: With dead ends: 1821 [2023-11-23 10:24:14,025 INFO L226 Difference]: Without dead ends: 1291 [2023-11-23 10:24:14,028 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 [2023-11-23 10:24:14,028 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 1448 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 755 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 2089 SdHoareTripleChecker+Invalid, 1976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 755 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.0s IncrementalHoareTripleChecker+Time [2023-11-23 10:24:14,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1546 Valid, 2089 Invalid, 1976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [755 Valid, 1200 Invalid, 21 Unknown, 0 Unchecked, 47.0s Time] [2023-11-23 10:24:14,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2023-11-23 10:24:14,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1074. [2023-11-23 10:24:14,072 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) [2023-11-23 10:24:14,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1543 transitions. [2023-11-23 10:24:14,077 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1543 transitions. Word has length 113 [2023-11-23 10:24:14,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:24:14,078 INFO L495 AbstractCegarLoop]: Abstraction has 1074 states and 1543 transitions. [2023-11-23 10:24:14,078 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) [2023-11-23 10:24:14,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1543 transitions. [2023-11-23 10:24:14,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-23 10:24:14,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:24:14,080 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] [2023-11-23 10:24:14,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 10:24:14,080 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:24:14,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:24:14,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1833924083, now seen corresponding path program 1 times [2023-11-23 10:24:14,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:24:14,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344043809] [2023-11-23 10:24:14,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:24:14,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:24:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:14,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:14,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:24:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:24:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:14,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:24:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:24:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 10:24:14,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:24:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:24:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 10:24:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:24:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:24:14,496 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2023-11-23 10:24:14,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:24:14,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344043809] [2023-11-23 10:24:14,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344043809] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:24:14,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:24:14,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 10:24:14,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334255396] [2023-11-23 10:24:14,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:24:14,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 10:24:14,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:24:14,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 10:24:14,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 10:24:14,499 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) [2023-11-23 10:24:16,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:18,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:20,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:22,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:25,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:27,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:29,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:31,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:33,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:38,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:40,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:42,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:44,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:46,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:48,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:50,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:52,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:54,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:56,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:24:58,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:00,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:01,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:25:01,046 INFO L93 Difference]: Finished difference Result 3603 states and 5286 transitions. [2023-11-23 10:25:01,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 10:25:01,047 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 [2023-11-23 10:25:01,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:25:01,058 INFO L225 Difference]: With dead ends: 3603 [2023-11-23 10:25:01,058 INFO L226 Difference]: Without dead ends: 2548 [2023-11-23 10:25:01,061 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 [2023-11-23 10:25:01,061 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 1509 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 790 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1603 SdHoareTripleChecker+Valid, 2031 SdHoareTripleChecker+Invalid, 1943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 790 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.2s IncrementalHoareTripleChecker+Time [2023-11-23 10:25:01,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1603 Valid, 2031 Invalid, 1943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [790 Valid, 1132 Invalid, 21 Unknown, 0 Unchecked, 46.2s Time] [2023-11-23 10:25:01,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2023-11-23 10:25:01,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 2118. [2023-11-23 10:25:01,136 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) [2023-11-23 10:25:01,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2118 states to 2118 states and 3044 transitions. [2023-11-23 10:25:01,147 INFO L78 Accepts]: Start accepts. Automaton has 2118 states and 3044 transitions. Word has length 116 [2023-11-23 10:25:01,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:25:01,148 INFO L495 AbstractCegarLoop]: Abstraction has 2118 states and 3044 transitions. [2023-11-23 10:25:01,148 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) [2023-11-23 10:25:01,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2118 states and 3044 transitions. [2023-11-23 10:25:01,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-23 10:25:01,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:25:01,152 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] [2023-11-23 10:25:01,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 10:25:01,153 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:25:01,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:25:01,153 INFO L85 PathProgramCache]: Analyzing trace with hash 699979797, now seen corresponding path program 1 times [2023-11-23 10:25:01,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:25:01,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542598269] [2023-11-23 10:25:01,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:25:01,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:25:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:01,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:01,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:25:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:25:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:25:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:25:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 10:25:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:25:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:01,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 10:25:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-23 10:25:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-23 10:25:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:01,443 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2023-11-23 10:25:01,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:25:01,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542598269] [2023-11-23 10:25:01,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542598269] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:25:01,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:25:01,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 10:25:01,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613627172] [2023-11-23 10:25:01,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:25:01,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 10:25:01,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:25:01,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 10:25:01,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-23 10:25:01,446 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) [2023-11-23 10:25:05,495 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 [] [2023-11-23 10:25:07,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:09,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:11,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:13,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:16,009 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 [] [2023-11-23 10:25:17,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:25:17,347 INFO L93 Difference]: Finished difference Result 4357 states and 6315 transitions. [2023-11-23 10:25:17,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 10:25:17,348 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 [2023-11-23 10:25:17,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:25:17,359 INFO L225 Difference]: With dead ends: 4357 [2023-11-23 10:25:17,359 INFO L226 Difference]: Without dead ends: 2260 [2023-11-23 10:25:17,366 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 [2023-11-23 10:25:17,366 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 961 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 413 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2023-11-23 10:25:17,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 1620 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 952 Invalid, 6 Unknown, 0 Unchecked, 15.7s Time] [2023-11-23 10:25:17,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2023-11-23 10:25:17,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 1786. [2023-11-23 10:25:17,426 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) [2023-11-23 10:25:17,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 2536 transitions. [2023-11-23 10:25:17,433 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 2536 transitions. Word has length 129 [2023-11-23 10:25:17,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:25:17,433 INFO L495 AbstractCegarLoop]: Abstraction has 1786 states and 2536 transitions. [2023-11-23 10:25:17,434 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) [2023-11-23 10:25:17,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 2536 transitions. [2023-11-23 10:25:17,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-23 10:25:17,439 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:25:17,440 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] [2023-11-23 10:25:17,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 10:25:17,440 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:25:17,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:25:17,440 INFO L85 PathProgramCache]: Analyzing trace with hash 64494669, now seen corresponding path program 1 times [2023-11-23 10:25:17,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:25:17,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816310405] [2023-11-23 10:25:17,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:25:17,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:25:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:25:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:25:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:25:17,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:17,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:25:17,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 10:25:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:25:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 10:25:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-23 10:25:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-23 10:25:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-23 10:25:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-23 10:25:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:17,998 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2023-11-23 10:25:17,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:25:17,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816310405] [2023-11-23 10:25:17,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816310405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:25:17,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:25:17,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 10:25:17,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014339105] [2023-11-23 10:25:17,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:25:17,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 10:25:17,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:25:18,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 10:25:18,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-23 10:25:18,000 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) [2023-11-23 10:25:22,227 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 [] [2023-11-23 10:25:24,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:26,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:28,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:31,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:33,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:35,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:37,172 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 [] [2023-11-23 10:25:37,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:25:37,923 INFO L93 Difference]: Finished difference Result 5650 states and 8159 transitions. [2023-11-23 10:25:37,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 10:25:37,924 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 [2023-11-23 10:25:37,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:25:37,967 INFO L225 Difference]: With dead ends: 5650 [2023-11-23 10:25:37,967 INFO L226 Difference]: Without dead ends: 3885 [2023-11-23 10:25:37,974 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 [2023-11-23 10:25:37,974 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 1565 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 1066 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1646 SdHoareTripleChecker+Valid, 1553 SdHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1066 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2023-11-23 10:25:37,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1646 Valid, 1553 Invalid, 1866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1066 Valid, 792 Invalid, 8 Unknown, 0 Unchecked, 19.6s Time] [2023-11-23 10:25:37,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2023-11-23 10:25:38,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 3066. [2023-11-23 10:25:38,091 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) [2023-11-23 10:25:38,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 4352 transitions. [2023-11-23 10:25:38,101 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 4352 transitions. Word has length 149 [2023-11-23 10:25:38,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:25:38,102 INFO L495 AbstractCegarLoop]: Abstraction has 3066 states and 4352 transitions. [2023-11-23 10:25:38,102 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) [2023-11-23 10:25:38,102 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 4352 transitions. [2023-11-23 10:25:38,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-23 10:25:38,106 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:25:38,107 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] [2023-11-23 10:25:38,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 10:25:38,107 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:25:38,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:25:38,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1415466802, now seen corresponding path program 1 times [2023-11-23 10:25:38,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:25:38,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738910458] [2023-11-23 10:25:38,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:25:38,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:25:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:25:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:25:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:25:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:25:38,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 10:25:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:25:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:25:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 10:25:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:25:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-23 10:25:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-23 10:25:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:25:38,617 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-23 10:25:38,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:25:38,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738910458] [2023-11-23 10:25:38,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738910458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:25:38,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:25:38,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 10:25:38,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274739637] [2023-11-23 10:25:38,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:25:38,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 10:25:38,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:25:38,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 10:25:38,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-23 10:25:38,619 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) [2023-11-23 10:25:42,860 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 [] [2023-11-23 10:25:44,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:46,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:48,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:51,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:53,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:55,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:57,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:25:59,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:02,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:04,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:06,021 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 [] [2023-11-23 10:26:06,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:26:06,600 INFO L93 Difference]: Finished difference Result 7390 states and 10821 transitions. [2023-11-23 10:26:06,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 10:26:06,601 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 [2023-11-23 10:26:06,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:26:06,621 INFO L225 Difference]: With dead ends: 7390 [2023-11-23 10:26:06,622 INFO L226 Difference]: Without dead ends: 4353 [2023-11-23 10:26:06,629 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 [2023-11-23 10:26:06,630 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 535 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 277 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 2056 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2023-11-23 10:26:06,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 2056 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 1171 Invalid, 12 Unknown, 0 Unchecked, 27.7s Time] [2023-11-23 10:26:06,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4353 states. [2023-11-23 10:26:06,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4353 to 3074. [2023-11-23 10:26:06,769 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) [2023-11-23 10:26:06,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3074 states to 3074 states and 4360 transitions. [2023-11-23 10:26:06,779 INFO L78 Accepts]: Start accepts. Automaton has 3074 states and 4360 transitions. Word has length 151 [2023-11-23 10:26:06,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:26:06,779 INFO L495 AbstractCegarLoop]: Abstraction has 3074 states and 4360 transitions. [2023-11-23 10:26:06,779 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) [2023-11-23 10:26:06,780 INFO L276 IsEmpty]: Start isEmpty. Operand 3074 states and 4360 transitions. [2023-11-23 10:26:06,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-23 10:26:06,783 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:26:06,783 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] [2023-11-23 10:26:06,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 10:26:06,784 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:26:06,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:26:06,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1887862863, now seen corresponding path program 1 times [2023-11-23 10:26:06,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:26:06,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505883390] [2023-11-23 10:26:06,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:26:06,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:26:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:06,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:06,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:26:07,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:07,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:26:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:26:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:26:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:07,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 10:26:07,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:07,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:26:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 10:26:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-23 10:26:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-23 10:26:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:07,440 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-23 10:26:07,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:26:07,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505883390] [2023-11-23 10:26:07,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505883390] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:26:07,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:26:07,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 10:26:07,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454826093] [2023-11-23 10:26:07,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:26:07,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 10:26:07,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:26:07,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 10:26:07,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-23 10:26:07,441 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) [2023-11-23 10:26:12,735 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 [] [2023-11-23 10:26:14,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:16,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:18,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:22,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:24,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:26,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:28,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:31,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:33,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:35,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:37,113 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 [] [2023-11-23 10:26:37,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:26:37,980 INFO L93 Difference]: Finished difference Result 7406 states and 10837 transitions. [2023-11-23 10:26:37,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 10:26:37,980 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 [2023-11-23 10:26:37,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:26:38,001 INFO L225 Difference]: With dead ends: 7406 [2023-11-23 10:26:38,001 INFO L226 Difference]: Without dead ends: 4361 [2023-11-23 10:26:38,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-23 10:26:38,011 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 547 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 1519 mSolverCounterSat, 377 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 2732 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1519 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2023-11-23 10:26:38,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 2732 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1519 Invalid, 12 Unknown, 0 Unchecked, 30.2s Time] [2023-11-23 10:26:38,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4361 states. [2023-11-23 10:26:38,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4361 to 3074. [2023-11-23 10:26:38,154 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) [2023-11-23 10:26:38,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3074 states to 3074 states and 4360 transitions. [2023-11-23 10:26:38,163 INFO L78 Accepts]: Start accepts. Automaton has 3074 states and 4360 transitions. Word has length 152 [2023-11-23 10:26:38,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:26:38,164 INFO L495 AbstractCegarLoop]: Abstraction has 3074 states and 4360 transitions. [2023-11-23 10:26:38,164 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) [2023-11-23 10:26:38,164 INFO L276 IsEmpty]: Start isEmpty. Operand 3074 states and 4360 transitions. [2023-11-23 10:26:38,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-23 10:26:38,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:26:38,168 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] [2023-11-23 10:26:38,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 10:26:38,168 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:26:38,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:26:38,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1811057983, now seen corresponding path program 1 times [2023-11-23 10:26:38,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:26:38,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22567750] [2023-11-23 10:26:38,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:26:38,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:26:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:38,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:38,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:38,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:38,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:38,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:38,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:26:38,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:38,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:38,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:38,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:26:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:38,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:38,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:38,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:26:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:39,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:39,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:39,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:39,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:39,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:26:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:39,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:39,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:39,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:39,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 10:26:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:39,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:39,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:39,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:26:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:39,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:39,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 10:26:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:39,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:39,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-23 10:26:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:39,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-23 10:26:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:39,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-23 10:26:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:39,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-23 10:26:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:39,108 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-23 10:26:39,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:26:39,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22567750] [2023-11-23 10:26:39,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22567750] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:26:39,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:26:39,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 10:26:39,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823756487] [2023-11-23 10:26:39,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:26:39,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 10:26:39,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:26:39,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 10:26:39,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-23 10:26:39,110 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) [2023-11-23 10:26:43,507 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 [] [2023-11-23 10:26:45,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:47,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:51,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:53,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:26:55,411 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 [] [2023-11-23 10:26:56,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:26:56,388 INFO L93 Difference]: Finished difference Result 6957 states and 10023 transitions. [2023-11-23 10:26:56,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 10:26:56,389 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 [2023-11-23 10:26:56,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:26:56,402 INFO L225 Difference]: With dead ends: 6957 [2023-11-23 10:26:56,403 INFO L226 Difference]: Without dead ends: 3912 [2023-11-23 10:26:56,409 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 [2023-11-23 10:26:56,410 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 465 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 428 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 2152 SdHoareTripleChecker+Invalid, 1775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2023-11-23 10:26:56,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 2152 Invalid, 1775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 1341 Invalid, 6 Unknown, 0 Unchecked, 17.0s Time] [2023-11-23 10:26:56,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3912 states. [2023-11-23 10:26:56,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3912 to 3082. [2023-11-23 10:26:56,519 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) [2023-11-23 10:26:56,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3082 states to 3082 states and 4368 transitions. [2023-11-23 10:26:56,663 INFO L78 Accepts]: Start accepts. Automaton has 3082 states and 4368 transitions. Word has length 158 [2023-11-23 10:26:56,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:26:56,663 INFO L495 AbstractCegarLoop]: Abstraction has 3082 states and 4368 transitions. [2023-11-23 10:26:56,664 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) [2023-11-23 10:26:56,664 INFO L276 IsEmpty]: Start isEmpty. Operand 3082 states and 4368 transitions. [2023-11-23 10:26:56,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-23 10:26:56,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:26:56,667 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] [2023-11-23 10:26:56,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 10:26:56,667 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:26:56,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:26:56,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1109231827, now seen corresponding path program 1 times [2023-11-23 10:26:56,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:26:56,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559291971] [2023-11-23 10:26:56,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:26:56,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:26:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:57,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-23 10:26:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-23 10:26:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-23 10:26:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:57,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-23 10:26:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:57,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-23 10:26:57,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 10:26:57,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-23 10:26:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 10:26:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-23 10:26:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-23 10:26:57,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:26:57,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:26:57,371 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-23 10:26:57,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:26:57,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559291971] [2023-11-23 10:26:57,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559291971] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:26:57,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:26:57,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 10:26:57,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511656634] [2023-11-23 10:26:57,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:26:57,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 10:26:57,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:26:57,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 10:26:57,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-23 10:26:57,374 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) [2023-11-23 10:27:04,178 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 [] [2023-11-23 10:27:06,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:27:08,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:27:10,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:27:14,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:27:16,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:27:18,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:27:20,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15