./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195b5f0b-24e3-40e4-8b14-26696f566997/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195b5f0b-24e3-40e4-8b14-26696f566997/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195b5f0b-24e3-40e4-8b14-26696f566997/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195b5f0b-24e3-40e4-8b14-26696f566997/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195b5f0b-24e3-40e4-8b14-26696f566997/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195b5f0b-24e3-40e4-8b14-26696f566997/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3be4ac024b7f357f41d231fb5742f86a984717c473cc6044544e39e88c4f03b3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:16:19,164 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:16:19,256 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195b5f0b-24e3-40e4-8b14-26696f566997/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:16:19,262 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:16:19,262 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:16:19,291 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:16:19,292 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:16:19,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:16:19,294 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:16:19,299 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:16:19,299 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:16:19,300 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:16:19,301 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:16:19,302 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:16:19,303 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:16:19,303 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:16:19,304 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:16:19,304 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:16:19,305 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:16:19,305 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:16:19,306 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:16:19,306 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:16:19,307 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:16:19,308 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:16:19,308 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:16:19,309 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:16:19,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:16:19,310 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:16:19,310 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:16:19,310 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:16:19,312 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:16:19,312 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:16:19,312 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:16:19,313 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:16:19,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:19,313 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:16:19,313 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:16:19,314 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:16:19,314 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:16:19,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:16:19,315 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:16:19,316 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:16:19,316 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:16:19,316 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:16:19,317 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195b5f0b-24e3-40e4-8b14-26696f566997/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195b5f0b-24e3-40e4-8b14-26696f566997/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3be4ac024b7f357f41d231fb5742f86a984717c473cc6044544e39e88c4f03b3 [2023-11-23 21:16:19,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:16:19,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:16:19,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:16:19,653 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:16:19,653 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:16:19,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195b5f0b-24e3-40e4-8b14-26696f566997/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i [2023-11-23 21:16:22,743 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:23,440 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:23,440 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195b5f0b-24e3-40e4-8b14-26696f566997/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i [2023-11-23 21:16:23,500 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195b5f0b-24e3-40e4-8b14-26696f566997/bin/utaipan-verify-mE87zJ7Ire/data/5861a77dd/5527a71292324497834f64d6c7dbca5a/FLAG4f17f4509 [2023-11-23 21:16:23,517 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195b5f0b-24e3-40e4-8b14-26696f566997/bin/utaipan-verify-mE87zJ7Ire/data/5861a77dd/5527a71292324497834f64d6c7dbca5a [2023-11-23 21:16:23,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:23,525 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:23,528 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:23,529 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:23,534 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:23,536 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:23" (1/1) ... [2023-11-23 21:16:23,538 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a967135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:23, skipping insertion in model container [2023-11-23 21:16:23,538 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:23" (1/1) ... [2023-11-23 21:16:23,711 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:16:26,003 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195b5f0b-24e3-40e4-8b14-26696f566997/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i[293856,293869] [2023-11-23 21:16:26,055 WARN L635 FunctionHandler]: implicit declaration of function ldv_xmalloc [2023-11-23 21:16:26,077 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:26,123 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:16:26,320 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"); [6039] [2023-11-23 21:16:26,322 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)); [6046] [2023-11-23 21:16:26,329 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [6183] [2023-11-23 21:16:26,329 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [6194] [2023-11-23 21:16:26,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [6197] [2023-11-23 21:16:26,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [6200] [2023-11-23 21:16:26,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [6203] [2023-11-23 21:16:26,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [6268] [2023-11-23 21:16:26,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [6276] [2023-11-23 21:16:26,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [6283] [2023-11-23 21:16:26,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [6291] [2023-11-23 21:16:26,358 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/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [6472-6473] [2023-11-23 21:16:26,360 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/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [6501-6502] [2023-11-23 21:16:26,361 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/asm-generic/dma-mapping-common.h"), "i" (108), "i" (12UL)); [6531-6532] [2023-11-23 21:16:26,363 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/asm-generic/dma-mapping-common.h"), "i" (120), "i" (12UL)); [6561-6562] [2023-11-23 21:16:26,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6925] [2023-11-23 21:16:26,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7948] [2023-11-23 21:16:26,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7950] [2023-11-23 21:16:26,487 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8140] [2023-11-23 21:16:26,488 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8142] [2023-11-23 21:16:26,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8497] [2023-11-23 21:16:26,507 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8509] [2023-11-23 21:16:26,510 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8560] [2023-11-23 21:16:26,515 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8699] [2023-11-23 21:16:26,566 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195b5f0b-24e3-40e4-8b14-26696f566997/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i[293856,293869] [2023-11-23 21:16:26,571 WARN L635 FunctionHandler]: implicit declaration of function ldv_xmalloc [2023-11-23 21:16:26,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:26,695 WARN L675 CHandler]: The function ldv_xmalloc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:26,696 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:26,696 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:26,704 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:16:26,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:26 WrapperNode [2023-11-23 21:16:26,705 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:26,706 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:26,707 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:16:26,707 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:16:26,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:26" (1/1) ... [2023-11-23 21:16:26,879 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:26" (1/1) ... [2023-11-23 21:16:27,090 INFO L138 Inliner]: procedures = 275, calls = 2324, calls flagged for inlining = 131, calls inlined = 123, statements flattened = 5387 [2023-11-23 21:16:27,091 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:27,092 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:16:27,092 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:16:27,093 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:16:27,103 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:26" (1/1) ... [2023-11-23 21:16:27,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:26" (1/1) ... [2023-11-23 21:16:27,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:26" (1/1) ... [2023-11-23 21:16:27,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:26" (1/1) ... [2023-11-23 21:16:27,291 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:26" (1/1) ... [2023-11-23 21:16:27,330 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:26" (1/1) ... [2023-11-23 21:16:27,361 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:26" (1/1) ... [2023-11-23 21:16:27,392 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:26" (1/1) ... [2023-11-23 21:16:27,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:16:27,451 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:16:27,451 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:16:27,452 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:16:27,452 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:26" (1/1) ... [2023-11-23 21:16:27,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:27,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195b5f0b-24e3-40e4-8b14-26696f566997/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:27,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195b5f0b-24e3-40e4-8b14-26696f566997/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:16:27,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_195b5f0b-24e3-40e4-8b14-26696f566997/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:16:27,531 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-23 21:16:27,532 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-23 21:16:27,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_2 [2023-11-23 21:16:27,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_2 [2023-11-23 21:16:27,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:16:27,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:16:27,533 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 21:16:27,533 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 21:16:27,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:16:27,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:16:27,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:16:27,534 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:16:27,534 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 21:16:27,534 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 21:16:27,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 21:16:27,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 21:16:27,535 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_count [2023-11-23 21:16:27,535 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_count [2023-11-23 21:16:27,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:16:27,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:16:27,535 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2023-11-23 21:16:27,535 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2023-11-23 21:16:27,536 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_status [2023-11-23 21:16:27,536 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_status [2023-11-23 21:16:27,536 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 21:16:27,536 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 21:16:27,536 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_status [2023-11-23 21:16:27,536 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_status [2023-11-23 21:16:27,536 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2023-11-23 21:16:27,537 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2023-11-23 21:16:27,537 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:16:27,537 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:16:27,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:16:27,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:16:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ring_debug [2023-11-23 21:16:27,539 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ring_debug [2023-11-23 21:16:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 21:16:27,539 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 21:16:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-23 21:16:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-23 21:16:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:16:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:16:27,540 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:16:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:16:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:16:27,541 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:16:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-23 21:16:27,541 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-23 21:16:27,541 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2023-11-23 21:16:27,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2023-11-23 21:16:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure ring_get [2023-11-23 21:16:27,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_get [2023-11-23 21:16:27,542 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2023-11-23 21:16:27,542 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2023-11-23 21:16:27,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:16:27,543 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:16:27,543 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_resume [2023-11-23 21:16:27,544 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_resume [2023-11-23 21:16:27,544 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 21:16:27,544 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 21:16:27,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:16:27,545 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-23 21:16:27,545 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-23 21:16:27,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 21:16:27,546 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2023-11-23 21:16:27,546 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2023-11-23 21:16:27,546 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_us_delta [2023-11-23 21:16:27,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_us_delta [2023-11-23 21:16:27,546 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:16:27,547 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:16:27,547 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_free_ring [2023-11-23 21:16:27,547 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_free_ring [2023-11-23 21:16:27,547 INFO L130 BoogieDeclarations]: Found specification of procedure ring_last [2023-11-23 21:16:27,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_last [2023-11-23 21:16:27,547 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-23 21:16:27,547 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-23 21:16:27,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:16:27,548 INFO L130 BoogieDeclarations]: Found specification of procedure ring_put [2023-11-23 21:16:27,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_put [2023-11-23 21:16:27,548 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-11-23 21:16:27,548 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-11-23 21:16:27,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:16:27,549 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:16:27,550 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:16:27,550 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-23 21:16:27,550 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-23 21:16:27,550 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2023-11-23 21:16:27,550 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2023-11-23 21:16:27,551 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:16:27,551 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:16:27,551 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_tx_timeout [2023-11-23 21:16:27,551 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_tx_timeout [2023-11-23 21:16:27,552 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-23 21:16:27,552 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-23 21:16:27,552 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 21:16:27,552 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 21:16:27,552 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:16:27,552 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:16:27,552 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-23 21:16:27,553 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-23 21:16:27,553 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:16:27,553 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:16:27,553 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_addr_status [2023-11-23 21:16:27,553 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_addr_status [2023-11-23 21:16:27,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:16:27,554 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_destroy_hwif [2023-11-23 21:16:27,554 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_destroy_hwif [2023-11-23 21:16:27,554 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:16:27,554 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:16:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:16:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_stop_hw [2023-11-23 21:16:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_stop_hw [2023-11-23 21:16:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure rd_get_addr [2023-11-23 21:16:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_get_addr [2023-11-23 21:16:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:16:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:16:27,557 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:16:27,557 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 21:16:27,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 21:16:27,561 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_irda_remove [2023-11-23 21:16:27,561 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_irda_remove [2023-11-23 21:16:27,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:16:27,562 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:16:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2023-11-23 21:16:27,563 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2023-11-23 21:16:27,564 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_clear_regs [2023-11-23 21:16:27,564 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_clear_regs [2023-11-23 21:16:27,564 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:16:27,569 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:16:27,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:16:27,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:16:27,570 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-23 21:16:27,570 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-23 21:16:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:16:27,571 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:16:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_start_hw [2023-11-23 21:16:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_start_hw [2023-11-23 21:16:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-23 21:16:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-23 21:16:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:16:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-23 21:16:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-23 21:16:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-11-23 21:16:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-11-23 21:16:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-23 21:16:27,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-23 21:16:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure rd_activate [2023-11-23 21:16:27,573 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_activate [2023-11-23 21:16:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2023-11-23 21:16:27,573 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2023-11-23 21:16:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:16:27,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:16:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure rd_is_active [2023-11-23 21:16:27,574 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_is_active [2023-11-23 21:16:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure irlap_close [2023-11-23 21:16:27,574 INFO L138 BoogieDeclarations]: Found implementation of procedure irlap_close [2023-11-23 21:16:27,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:16:27,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:16:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:16:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure rd_set_count [2023-11-23 21:16:27,575 INFO L138 BoogieDeclarations]: Found implementation of procedure rd_set_count [2023-11-23 21:16:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:16:27,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:16:27,575 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-23 21:16:27,576 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-23 21:16:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:16:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-23 21:16:27,576 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-23 21:16:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:16:27,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:16:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:16:27,576 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:16:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_tx [2023-11-23 21:16:27,577 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_tx [2023-11-23 21:16:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-23 21:16:27,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-23 21:16:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_ioctl [2023-11-23 21:16:27,577 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_ioctl [2023-11-23 21:16:27,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_2 [2023-11-23 21:16:27,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_2 [2023-11-23 21:16:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-23 21:16:27,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-23 21:16:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_alloc_ring [2023-11-23 21:16:27,578 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_alloc_ring [2023-11-23 21:16:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_fill_rx [2023-11-23 21:16:27,578 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_fill_rx [2023-11-23 21:16:27,578 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-23 21:16:27,579 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-23 21:16:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_process_rx [2023-11-23 21:16:27,579 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_process_rx [2023-11-23 21:16:27,579 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-23 21:16:27,579 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-23 21:16:27,581 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_reg_debug [2023-11-23 21:16:27,581 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_reg_debug [2023-11-23 21:16:27,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:16:27,581 INFO L130 BoogieDeclarations]: Found specification of procedure vlsi_set_baud [2023-11-23 21:16:27,581 INFO L138 BoogieDeclarations]: Found implementation of procedure vlsi_set_baud [2023-11-23 21:16:27,581 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2023-11-23 21:16:27,582 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2023-11-23 21:16:27,582 INFO L130 BoogieDeclarations]: Found specification of procedure ring_first [2023-11-23 21:16:27,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_first [2023-11-23 21:16:27,582 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2023-11-23 21:16:27,582 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2023-11-23 21:16:27,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:16:27,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:16:28,385 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:16:28,390 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:16:28,878 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:16:33,224 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:16:35,552 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:16:35,553 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:16:35,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:35 BoogieIcfgContainer [2023-11-23 21:16:35,555 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:16:35,559 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:16:35,560 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:16:35,563 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:16:35,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:23" (1/3) ... [2023-11-23 21:16:35,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c18ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:35, skipping insertion in model container [2023-11-23 21:16:35,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:26" (2/3) ... [2023-11-23 21:16:35,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c18ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:35, skipping insertion in model container [2023-11-23 21:16:35,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:35" (3/3) ... [2023-11-23 21:16:35,567 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--irda--vlsi_ir.ko-entry_point.cil.out.i [2023-11-23 21:16:35,589 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:16:35,590 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:16:35,695 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:16:35,704 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=FINITE_AUTOMATA, 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;@44d6beaa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:16:35,704 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:16:35,784 INFO L276 IsEmpty]: Start isEmpty. Operand has 1393 states, 836 states have (on average 1.3026315789473684) internal successors, (1089), 870 states have internal predecessors, (1089), 463 states have call successors, (463), 93 states have call predecessors, (463), 92 states have return successors, (456), 456 states have call predecessors, (456), 456 states have call successors, (456) [2023-11-23 21:16:35,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-23 21:16:35,820 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:35,821 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:16:35,822 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:35,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:35,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1187659797, now seen corresponding path program 1 times [2023-11-23 21:16:35,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:35,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751247146] [2023-11-23 21:16:35,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:35,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:37,077 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2023-11-23 21:16:37,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:37,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751247146] [2023-11-23 21:16:37,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751247146] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:37,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:37,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:37,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426942471] [2023-11-23 21:16:37,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:37,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:37,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:37,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:37,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:37,145 INFO L87 Difference]: Start difference. First operand has 1393 states, 836 states have (on average 1.3026315789473684) internal successors, (1089), 870 states have internal predecessors, (1089), 463 states have call successors, (463), 93 states have call predecessors, (463), 92 states have return successors, (456), 456 states have call predecessors, (456), 456 states have call successors, (456) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 21:16:38,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:40,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:44,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:44,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:44,770 INFO L93 Difference]: Finished difference Result 3680 states and 5323 transitions. [2023-11-23 21:16:44,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:44,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 131 [2023-11-23 21:16:44,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:44,828 INFO L225 Difference]: With dead ends: 3680 [2023-11-23 21:16:44,828 INFO L226 Difference]: Without dead ends: 2281 [2023-11-23 21:16:44,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:44,846 INFO L413 NwaCegarLoop]: 1830 mSDtfsCounter, 1358 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 3553 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:44,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1358 Valid, 3553 Invalid, 425 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-11-23 21:16:44,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2281 states. [2023-11-23 21:16:45,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2281 to 2277. [2023-11-23 21:16:45,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2277 states, 1372 states have (on average 1.2871720116618075) internal successors, (1766), 1411 states have internal predecessors, (1766), 742 states have call successors, (742), 163 states have call predecessors, (742), 162 states have return successors, (745), 740 states have call predecessors, (745), 741 states have call successors, (745) [2023-11-23 21:16:45,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2277 states to 2277 states and 3253 transitions. [2023-11-23 21:16:45,195 INFO L78 Accepts]: Start accepts. Automaton has 2277 states and 3253 transitions. Word has length 131 [2023-11-23 21:16:45,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:45,199 INFO L495 AbstractCegarLoop]: Abstraction has 2277 states and 3253 transitions. [2023-11-23 21:16:45,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 21:16:45,199 INFO L276 IsEmpty]: Start isEmpty. Operand 2277 states and 3253 transitions. [2023-11-23 21:16:45,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-23 21:16:45,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:45,215 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:45,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:16:45,215 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:45,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:45,216 INFO L85 PathProgramCache]: Analyzing trace with hash 2105833321, now seen corresponding path program 1 times [2023-11-23 21:16:45,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:45,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020777329] [2023-11-23 21:16:45,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:45,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:46,368 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-23 21:16:46,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:46,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020777329] [2023-11-23 21:16:46,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020777329] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:46,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:46,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:16:46,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380506885] [2023-11-23 21:16:46,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:46,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:16:46,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:46,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:16:46,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:16:46,373 INFO L87 Difference]: Start difference. First operand 2277 states and 3253 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2023-11-23 21:16:48,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:50,612 WARN L539 Checker$ProtectedHtc]: 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 21:16:55,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:56,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:00,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:17:00,223 INFO L93 Difference]: Finished difference Result 6678 states and 9540 transitions. [2023-11-23 21:17:00,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:17:00,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 186 [2023-11-23 21:17:00,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:17:00,270 INFO L225 Difference]: With dead ends: 6678 [2023-11-23 21:17:00,270 INFO L226 Difference]: Without dead ends: 4429 [2023-11-23 21:17:00,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:17:00,290 INFO L413 NwaCegarLoop]: 1843 mSDtfsCounter, 1781 mSDsluCounter, 5419 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1785 SdHoareTripleChecker+Valid, 7262 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:17:00,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1785 Valid, 7262 Invalid, 840 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 836 Invalid, 1 Unknown, 0 Unchecked, 13.4s Time] [2023-11-23 21:17:00,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4429 states. [2023-11-23 21:17:00,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4429 to 4413. [2023-11-23 21:17:00,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4413 states, 2662 states have (on average 1.288129226145755) internal successors, (3429), 2740 states have internal predecessors, (3429), 1430 states have call successors, (1430), 321 states have call predecessors, (1430), 320 states have return successors, (1437), 1426 states have call predecessors, (1437), 1429 states have call successors, (1437) [2023-11-23 21:17:00,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4413 states to 4413 states and 6296 transitions. [2023-11-23 21:17:00,675 INFO L78 Accepts]: Start accepts. Automaton has 4413 states and 6296 transitions. Word has length 186 [2023-11-23 21:17:00,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:00,676 INFO L495 AbstractCegarLoop]: Abstraction has 4413 states and 6296 transitions. [2023-11-23 21:17:00,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2023-11-23 21:17:00,677 INFO L276 IsEmpty]: Start isEmpty. Operand 4413 states and 6296 transitions. [2023-11-23 21:17:00,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-23 21:17:00,684 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:00,684 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:17:00,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:17:00,685 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:17:00,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:00,686 INFO L85 PathProgramCache]: Analyzing trace with hash -329222932, now seen corresponding path program 1 times [2023-11-23 21:17:00,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:00,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567580535] [2023-11-23 21:17:00,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:00,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:01,682 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-23 21:17:01,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:01,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567580535] [2023-11-23 21:17:01,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567580535] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:01,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:01,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:17:01,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627973196] [2023-11-23 21:17:01,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:01,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:17:01,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:01,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:17:01,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:17:01,687 INFO L87 Difference]: Start difference. First operand 4413 states and 6296 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2023-11-23 21:17:03,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:17:07,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []