./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--qla2xxx--tcm_qla2xxx.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_6e967513-2b14-417e-a742-51f4b9cd63f8/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e967513-2b14-417e-a742-51f4b9cd63f8/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_6e967513-2b14-417e-a742-51f4b9cd63f8/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e967513-2b14-417e-a742-51f4b9cd63f8/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--qla2xxx--tcm_qla2xxx.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e967513-2b14-417e-a742-51f4b9cd63f8/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_6e967513-2b14-417e-a742-51f4b9cd63f8/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 b0972555dcd79a5f779d586a5c7ed93c052eba30949ae32332c80aa686a12f15 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:10:49,809 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:10:49,876 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e967513-2b14-417e-a742-51f4b9cd63f8/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:10:49,882 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:10:49,883 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:10:49,908 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:10:49,909 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:10:49,910 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:10:49,911 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:10:49,911 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:10:49,912 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:10:49,913 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:10:49,913 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:10:49,914 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:10:49,914 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:10:49,915 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:10:49,916 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:10:49,916 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:10:49,917 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:10:49,918 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:10:49,918 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:10:49,919 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:10:49,920 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:10:49,920 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:10:49,921 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:10:49,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:10:49,922 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:10:49,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:10:49,923 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:10:49,924 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:10:49,924 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:10:49,925 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:10:49,925 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:10:49,925 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:10:49,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:10:49,926 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:10:49,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:10:49,927 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:10:49,931 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:10:49,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:10:49,932 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:10:49,933 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:10:49,933 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:10:49,933 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:10:49,934 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_6e967513-2b14-417e-a742-51f4b9cd63f8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e967513-2b14-417e-a742-51f4b9cd63f8/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0972555dcd79a5f779d586a5c7ed93c052eba30949ae32332c80aa686a12f15 [2023-11-23 21:10:50,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:10:50,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:10:50,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:10:50,274 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:10:50,275 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:10:50,277 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e967513-2b14-417e-a742-51f4b9cd63f8/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--qla2xxx--tcm_qla2xxx.ko-entry_point.cil.out.i [2023-11-23 21:10:53,523 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:10:54,310 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:10:54,310 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e967513-2b14-417e-a742-51f4b9cd63f8/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--qla2xxx--tcm_qla2xxx.ko-entry_point.cil.out.i [2023-11-23 21:10:54,377 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e967513-2b14-417e-a742-51f4b9cd63f8/bin/utaipan-verify-mE87zJ7Ire/data/c6b2b75c7/5a5927f1575b4a939e489abf317a2863/FLAG1204e2372 [2023-11-23 21:10:54,396 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e967513-2b14-417e-a742-51f4b9cd63f8/bin/utaipan-verify-mE87zJ7Ire/data/c6b2b75c7/5a5927f1575b4a939e489abf317a2863 [2023-11-23 21:10:54,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:10:54,408 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:10:54,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:54,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:10:54,418 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:10:54,419 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:54" (1/1) ... [2023-11-23 21:10:54,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61ed3091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:54, skipping insertion in model container [2023-11-23 21:10:54,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:54" (1/1) ... [2023-11-23 21:10:54,610 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:10:55,442 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [9725] [2023-11-23 21:10:55,443 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [9726-9727] [2023-11-23 21:10:56,164 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_6e967513-2b14-417e-a742-51f4b9cd63f8/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--qla2xxx--tcm_qla2xxx.ko-entry_point.cil.out.i[294645,294658] [2023-11-23 21:10:58,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:10:58,233 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:10:58,521 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [9725] [2023-11-23 21:10:58,522 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [9726-9727] [2023-11-23 21:10:58,526 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapq %0": "=r" (val): "0" (val)); [9809] [2023-11-23 21:10:58,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [9854] [2023-11-23 21:10:58,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [9857] [2023-11-23 21:10:58,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [9860] [2023-11-23 21:10:58,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [9863] [2023-11-23 21:10:58,532 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; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [9914-9915] [2023-11-23 21:10:58,533 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; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [9926-9927] [2023-11-23 21:10:58,533 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; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [9930-9931] [2023-11-23 21:10:58,534 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; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [9934-9935] [2023-11-23 21:10:58,534 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; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [9938-9939] [2023-11-23 21:10:58,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [9955] [2023-11-23 21:10:58,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [9958] [2023-11-23 21:10:58,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [9961] [2023-11-23 21:10:58,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [9964] [2023-11-23 21:10:58,542 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_6e967513-2b14-417e-a742-51f4b9cd63f8/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--qla2xxx--tcm_qla2xxx.ko-entry_point.cil.out.i[294645,294658] [2023-11-23 21:10:58,548 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" (65), "i" (12UL)); [10318-10319] [2023-11-23 21:10:58,583 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.16-rc1.tar.xz--X--43_2a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/5154/dscv_tempdir/dscv/ri/43_2a/drivers/scsi/qla2xxx/tcm_qla2xxx.o.c.prepared"), "i" (512), "i" (12UL)); [11032-11033] [2023-11-23 21:10:58,584 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.16-rc1.tar.xz--X--43_2a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/5154/dscv_tempdir/dscv/ri/43_2a/drivers/scsi/qla2xxx/tcm_qla2xxx.o.c.prepared"), "i" (528), "i" (12UL)); [11056-11057] [2023-11-23 21:10:58,600 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.16-rc1.tar.xz--X--43_2a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/5154/dscv_tempdir/dscv/ri/43_2a/drivers/scsi/qla2xxx/tcm_qla2xxx.o.c.prepared"), "i" (877), "i" (12UL)); [11463-11464] [2023-11-23 21:10:58,601 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.16-rc1.tar.xz--X--43_2a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/5154/dscv_tempdir/dscv/ri/43_2a/drivers/scsi/qla2xxx/tcm_qla2xxx.o.c.prepared"), "i" (883), "i" (12UL)); [11481-11482] [2023-11-23 21:10:58,748 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.16-rc1.tar.xz--X--43_2a--X--cpachecker/linux-3.16-rc1.tar.xz/csd_deg_dscv/5154/dscv_tempdir/dscv/ri/43_2a/drivers/scsi/qla2xxx/tcm_qla2xxx.o.c.prepared"), "i" (1537), "i" (12UL)); [12613-12614] [2023-11-23 21:10:58,927 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:10:59,041 WARN L675 CHandler]: The function strstr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:59,042 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:59,042 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:59,042 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:59,050 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:10:59,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:59 WrapperNode [2023-11-23 21:10:59,051 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:59,053 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:10:59,053 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:10:59,053 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:10:59,061 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:59" (1/1) ... [2023-11-23 21:10:59,177 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:59" (1/1) ... [2023-11-23 21:10:59,642 INFO L138 Inliner]: procedures = 303, calls = 2599, calls flagged for inlining = 133, calls inlined = 125, statements flattened = 6425 [2023-11-23 21:10:59,644 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:10:59,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:10:59,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:10:59,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:10:59,657 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:59" (1/1) ... [2023-11-23 21:10:59,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:59" (1/1) ... [2023-11-23 21:10:59,738 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:59" (1/1) ... [2023-11-23 21:10:59,744 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:59" (1/1) ... [2023-11-23 21:10:59,973 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:59" (1/1) ... [2023-11-23 21:11:00,014 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:59" (1/1) ... [2023-11-23 21:11:00,072 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:59" (1/1) ... [2023-11-23 21:11:00,106 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:59" (1/1) ... [2023-11-23 21:11:00,174 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:11:00,176 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:11:00,176 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:11:00,177 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:11:00,178 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:59" (1/1) ... [2023-11-23 21:11:00,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:11:00,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e967513-2b14-417e-a742-51f4b9cd63f8/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:11:00,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e967513-2b14-417e-a742-51f4b9cd63f8/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:11:00,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e967513-2b14-417e-a742-51f4b9cd63f8/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:11:00,351 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-23 21:11:00,352 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-23 21:11:00,352 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_get_task_tag [2023-11-23 21:11:00,352 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_get_task_tag [2023-11-23 21:11:00,353 INFO L130 BoogieDeclarations]: Found specification of procedure qlt_unreg_sess [2023-11-23 21:11:00,353 INFO L138 BoogieDeclarations]: Found implementation of procedure qlt_unreg_sess [2023-11-23 21:11:00,353 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-23 21:11:00,354 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-23 21:11:00,354 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_handle_dif_err [2023-11-23 21:11:00,354 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_handle_dif_err [2023-11-23 21:11:00,354 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_shutdown_session [2023-11-23 21:11:00,354 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_shutdown_session [2023-11-23 21:11:00,354 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_queue_data_in [2023-11-23 21:11:00,354 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_queue_data_in [2023-11-23 21:11:00,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:11:00,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:11:00,355 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_set_default_node_attrs [2023-11-23 21:11:00,355 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_set_default_node_attrs [2023-11-23 21:11:00,355 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_npiv_drop_lport [2023-11-23 21:11:00,443 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_npiv_drop_lport [2023-11-23 21:11:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure qlt_lport_register [2023-11-23 21:11:00,443 INFO L138 BoogieDeclarations]: Found implementation of procedure qlt_lport_register [2023-11-23 21:11:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 21:11:00,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 21:11:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:11:00,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:11:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_write_pending_status [2023-11-23 21:11:00,444 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_write_pending_status [2023-11-23 21:11:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2023-11-23 21:11:00,444 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2023-11-23 21:11:00,445 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_check_stop_free [2023-11-23 21:11:00,445 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_check_stop_free [2023-11-23 21:11:00,445 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2023-11-23 21:11:00,445 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2023-11-23 21:11:00,445 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_check_prod_write_protect [2023-11-23 21:11:00,445 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_check_prod_write_protect [2023-11-23 21:11:00,445 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_set_sess_by_loop_id [2023-11-23 21:11:00,445 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_set_sess_by_loop_id [2023-11-23 21:11:00,446 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_drop_lport [2023-11-23 21:11:00,446 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_drop_lport [2023-11-23 21:11:00,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:11:00,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:11:00,446 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_clear_nacl_from_fcport_map [2023-11-23 21:11:00,446 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_clear_nacl_from_fcport_map [2023-11-23 21:11:00,446 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-23 21:11:00,446 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-23 21:11:00,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:11:00,447 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:11:00,447 INFO L130 BoogieDeclarations]: Found specification of procedure target_fabric_configfs_init [2023-11-23 21:11:00,448 INFO L138 BoogieDeclarations]: Found implementation of procedure target_fabric_configfs_init [2023-11-23 21:11:00,448 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:11:00,448 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:11:00,448 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_write_pending [2023-11-23 21:11:00,448 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_write_pending [2023-11-23 21:11:00,448 INFO L130 BoogieDeclarations]: Found specification of procedure arch_spin_is_locked [2023-11-23 21:11:00,449 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_spin_is_locked [2023-11-23 21:11:00,449 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_free_mcmd [2023-11-23 21:11:00,449 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_free_mcmd [2023-11-23 21:11:00,450 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_get_cmd_state [2023-11-23 21:11:00,450 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_get_cmd_state [2023-11-23 21:11:00,450 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_check_demo_mode [2023-11-23 21:11:00,450 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_check_demo_mode [2023-11-23 21:11:00,450 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_parse_wwn [2023-11-23 21:11:00,450 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_parse_wwn [2023-11-23 21:11:00,450 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_init_lport [2023-11-23 21:11:00,451 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_init_lport [2023-11-23 21:11:00,451 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-23 21:11:00,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-23 21:11:00,451 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_put_sess [2023-11-23 21:11:00,451 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_put_sess [2023-11-23 21:11:00,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:11:00,451 INFO L130 BoogieDeclarations]: Found specification of procedure btree_destroy32 [2023-11-23 21:11:00,451 INFO L138 BoogieDeclarations]: Found implementation of procedure btree_destroy32 [2023-11-23 21:11:00,452 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:11:00,452 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 21:11:00,452 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 21:11:00,452 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_get_tag [2023-11-23 21:11:00,452 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_get_tag [2023-11-23 21:11:00,456 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_make_tpg [2023-11-23 21:11:00,456 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_make_tpg [2023-11-23 21:11:00,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:11:00,457 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-23 21:11:00,457 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-23 21:11:00,457 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-23 21:11:00,457 INFO L130 BoogieDeclarations]: Found specification of procedure target_fabric_configfs_deregister [2023-11-23 21:11:00,457 INFO L138 BoogieDeclarations]: Found implementation of procedure target_fabric_configfs_deregister [2023-11-23 21:11:00,458 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_check_demo_write_protect [2023-11-23 21:11:00,458 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_check_demo_write_protect [2023-11-23 21:11:00,458 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:11:00,458 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:11:00,458 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2023-11-23 21:11:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure core_tpg_register [2023-11-23 21:11:00,459 INFO L138 BoogieDeclarations]: Found implementation of procedure core_tpg_register [2023-11-23 21:11:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_get_pr_transport_id [2023-11-23 21:11:00,459 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_get_pr_transport_id [2023-11-23 21:11:00,459 INFO L130 BoogieDeclarations]: Found specification of procedure target_sess_cmd_list_set_waiting [2023-11-23 21:11:00,460 INFO L138 BoogieDeclarations]: Found implementation of procedure target_sess_cmd_list_set_waiting [2023-11-23 21:11:00,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:11:00,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:11:00,460 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_get_fabric_wwn [2023-11-23 21:11:00,460 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_get_fabric_wwn [2023-11-23 21:11:00,460 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:11:00,461 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:11:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_release_cmd [2023-11-23 21:11:00,461 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_release_cmd [2023-11-23 21:11:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 21:11:00,461 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 21:11:00,461 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_tpg_get_inst_index [2023-11-23 21:11:00,462 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_tpg_get_inst_index [2023-11-23 21:11:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2023-11-23 21:11:00,462 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2023-11-23 21:11:00,462 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-23 21:11:00,462 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-23 21:11:00,463 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_tpg_show_enable [2023-11-23 21:11:00,464 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_tpg_show_enable [2023-11-23 21:11:00,464 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_check_demo_mode_cache [2023-11-23 21:11:00,464 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_check_demo_mode_cache [2023-11-23 21:11:00,464 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_drop_tpg [2023-11-23 21:11:00,465 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_drop_tpg [2023-11-23 21:11:00,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 21:11:00,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 21:11:00,468 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_free_cmd [2023-11-23 21:11:00,469 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_free_cmd [2023-11-23 21:11:00,469 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_npiv_extract_wwn [2023-11-23 21:11:00,470 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_npiv_extract_wwn [2023-11-23 21:11:00,470 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_set_sess_by_s_id [2023-11-23 21:11:00,471 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_set_sess_by_s_id [2023-11-23 21:11:00,472 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_workqueue_key [2023-11-23 21:11:00,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_workqueue_key [2023-11-23 21:11:00,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:11:00,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2023-11-23 21:11:00,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2023-11-23 21:11:00,477 INFO L130 BoogieDeclarations]: Found specification of procedure qlt_enable_vha [2023-11-23 21:11:00,477 INFO L138 BoogieDeclarations]: Found implementation of procedure qlt_enable_vha [2023-11-23 21:11:00,478 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_shutdown_sess [2023-11-23 21:11:00,478 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_shutdown_sess [2023-11-23 21:11:00,478 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_check_demo_mode_login_only [2023-11-23 21:11:00,478 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_check_demo_mode_login_only [2023-11-23 21:11:00,478 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_aborted_task [2023-11-23 21:11:00,479 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_aborted_task [2023-11-23 21:11:00,479 INFO L130 BoogieDeclarations]: Found specification of procedure btree_remove32 [2023-11-23 21:11:00,479 INFO L138 BoogieDeclarations]: Found implementation of procedure btree_remove32 [2023-11-23 21:11:00,479 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_queue_tm_rsp [2023-11-23 21:11:00,479 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_queue_tm_rsp [2023-11-23 21:11:00,479 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_request_failure [2023-11-23 21:11:00,479 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_request_failure [2023-11-23 21:11:00,480 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_make_lport [2023-11-23 21:11:00,480 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_make_lport [2023-11-23 21:11:00,480 INFO L130 BoogieDeclarations]: Found specification of procedure qlt_stop_phase1 [2023-11-23 21:11:00,480 INFO L138 BoogieDeclarations]: Found implementation of procedure qlt_stop_phase1 [2023-11-23 21:11:00,480 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_get_fabric_proto_ident [2023-11-23 21:11:00,480 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_get_fabric_proto_ident [2023-11-23 21:11:00,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:11:00,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:11:00,481 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_queue_status [2023-11-23 21:11:00,481 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_queue_status [2023-11-23 21:11:00,481 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_npiv_make_lport [2023-11-23 21:11:00,481 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_npiv_make_lport [2023-11-23 21:11:00,482 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:11:00,482 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:11:00,482 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_sess_get_index [2023-11-23 21:11:00,482 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_sess_get_index [2023-11-23 21:11:00,483 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_get_pr_transport_id_len [2023-11-23 21:11:00,484 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_get_pr_transport_id_len [2023-11-23 21:11:00,484 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-11-23 21:11:00,485 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-11-23 21:11:00,485 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_handle_data [2023-11-23 21:11:00,485 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_handle_data [2023-11-23 21:11:00,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:11:00,485 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-23 21:11:00,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-23 21:11:00,486 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_format_wwn [2023-11-23 21:11:00,486 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_format_wwn [2023-11-23 21:11:00,486 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-23 21:11:00,486 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-23 21:11:00,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:11:00,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:11:00,486 INFO L130 BoogieDeclarations]: Found specification of procedure target_fabric_configfs_register [2023-11-23 21:11:00,487 INFO L138 BoogieDeclarations]: Found implementation of procedure target_fabric_configfs_register [2023-11-23 21:11:00,487 INFO L130 BoogieDeclarations]: Found specification of procedure btree_insert32 [2023-11-23 21:11:00,487 INFO L138 BoogieDeclarations]: Found implementation of procedure btree_insert32 [2023-11-23 21:11:00,487 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_release_fabric_acl [2023-11-23 21:11:00,487 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_release_fabric_acl [2023-11-23 21:11:00,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:11:00,487 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2023-11-23 21:11:00,488 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2023-11-23 21:11:00,488 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-11-23 21:11:00,488 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-11-23 21:11:00,488 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_npiv_get_fabric_name [2023-11-23 21:11:00,489 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_npiv_get_fabric_name [2023-11-23 21:11:00,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:11:00,489 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_close_session [2023-11-23 21:11:00,489 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_close_session [2023-11-23 21:11:00,489 INFO L130 BoogieDeclarations]: Found specification of procedure utsname [2023-11-23 21:11:00,490 INFO L138 BoogieDeclarations]: Found implementation of procedure utsname [2023-11-23 21:11:00,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:11:00,490 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:11:00,490 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_get_fabric_name [2023-11-23 21:11:00,490 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_get_fabric_name [2023-11-23 21:11:00,490 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_free_session [2023-11-23 21:11:00,490 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_free_session [2023-11-23 21:11:00,491 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:11:00,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:11:00,491 INFO L130 BoogieDeclarations]: Found specification of procedure btree_update32 [2023-11-23 21:11:00,491 INFO L138 BoogieDeclarations]: Found implementation of procedure btree_update32 [2023-11-23 21:11:00,491 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2023-11-23 21:11:00,491 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2023-11-23 21:11:00,492 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_parse_pr_out_transport_id [2023-11-23 21:11:00,492 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_parse_pr_out_transport_id [2023-11-23 21:11:00,492 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_make_nodeacl [2023-11-23 21:11:00,492 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_make_nodeacl [2023-11-23 21:11:00,492 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_drop_nodeacl [2023-11-23 21:11:00,492 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_drop_nodeacl [2023-11-23 21:11:00,492 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-23 21:11:00,493 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-23 21:11:00,493 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2023-11-23 21:11:00,493 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2023-11-23 21:11:00,493 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-23 21:11:00,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-23 21:11:00,493 INFO L130 BoogieDeclarations]: Found specification of procedure qlt_xmit_response [2023-11-23 21:11:00,493 INFO L138 BoogieDeclarations]: Found implementation of procedure qlt_xmit_response [2023-11-23 21:11:00,494 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_free_cmd [2023-11-23 21:11:00,494 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_free_cmd [2023-11-23 21:11:00,494 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:11:00,494 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:11:00,494 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_npiv_make_tpg [2023-11-23 21:11:00,494 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_npiv_make_tpg [2023-11-23 21:11:00,494 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_get_default_depth [2023-11-23 21:11:00,495 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_get_default_depth [2023-11-23 21:11:00,495 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_put_session [2023-11-23 21:11:00,495 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_put_session [2023-11-23 21:11:00,495 INFO L130 BoogieDeclarations]: Found specification of procedure target_reverse_dma_direction [2023-11-23 21:11:00,495 INFO L138 BoogieDeclarations]: Found implementation of procedure target_reverse_dma_direction [2023-11-23 21:11:00,495 INFO L130 BoogieDeclarations]: Found specification of procedure btree_lookup32 [2023-11-23 21:11:00,495 INFO L138 BoogieDeclarations]: Found implementation of procedure btree_lookup32 [2023-11-23 21:11:00,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:11:00,496 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-11-23 21:11:00,496 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-11-23 21:11:00,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:11:00,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:11:00,496 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_alloc_fabric_acl [2023-11-23 21:11:00,496 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_alloc_fabric_acl [2023-11-23 21:11:00,497 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:11:00,497 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:11:01,658 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:11:01,668 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:11:03,104 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:11:14,981 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:11:17,565 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:11:17,566 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:11:17,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:11:17 BoogieIcfgContainer [2023-11-23 21:11:17,571 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:11:17,575 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:11:17,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:11:17,580 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:11:17,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:10:54" (1/3) ... [2023-11-23 21:11:17,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ac5408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:11:17, skipping insertion in model container [2023-11-23 21:11:17,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:59" (2/3) ... [2023-11-23 21:11:17,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ac5408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:11:17, skipping insertion in model container [2023-11-23 21:11:17,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:11:17" (3/3) ... [2023-11-23 21:11:17,589 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--qla2xxx--tcm_qla2xxx.ko-entry_point.cil.out.i [2023-11-23 21:11:17,616 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:11:17,616 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:11:17,764 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:11:17,775 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;@76d93223, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:11:17,776 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:11:17,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 1961 states, 1244 states have (on average 1.4059485530546625) internal successors, (1749), 1291 states have internal predecessors, (1749), 602 states have call successors, (602), 114 states have call predecessors, (602), 113 states have return successors, (589), 570 states have call predecessors, (589), 589 states have call successors, (589) [2023-11-23 21:11:17,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2023-11-23 21:11:17,879 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:11:17,881 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:11:17,882 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:11:17,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:11:17,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1940840635, now seen corresponding path program 1 times [2023-11-23 21:11:17,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:11:17,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114743706] [2023-11-23 21:11:17,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:17,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:11:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:11:19,514 INFO L134 CoverageAnalysis]: Checked inductivity of 3388 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3388 trivial. 0 not checked. [2023-11-23 21:11:19,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:11:19,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114743706] [2023-11-23 21:11:19,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114743706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:11:19,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:11:19,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:11:19,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437722989] [2023-11-23 21:11:19,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:11:19,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:11:19,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:11:19,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:11:19,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:11:19,597 INFO L87 Difference]: Start difference. First operand has 1961 states, 1244 states have (on average 1.4059485530546625) internal successors, (1749), 1291 states have internal predecessors, (1749), 602 states have call successors, (602), 114 states have call predecessors, (602), 113 states have return successors, (589), 570 states have call predecessors, (589), 589 states have call successors, (589) Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-11-23 21:11:21,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:26,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:11:26,346 INFO L93 Difference]: Finished difference Result 5339 states and 7997 transitions. [2023-11-23 21:11:26,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:11:26,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 336 [2023-11-23 21:11:26,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:11:26,414 INFO L225 Difference]: With dead ends: 5339 [2023-11-23 21:11:26,415 INFO L226 Difference]: Without dead ends: 3402 [2023-11-23 21:11:26,434 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 21:11:26,437 INFO L413 NwaCegarLoop]: 2754 mSDtfsCounter, 2367 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2367 SdHoareTripleChecker+Valid, 5139 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:11:26,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2367 Valid, 5139 Invalid, 585 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 582 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2023-11-23 21:11:26,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3402 states. [2023-11-23 21:11:26,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3402 to 3397. [2023-11-23 21:11:26,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3397 states, 2170 states have (on average 1.3870967741935485) internal successors, (3010), 2233 states have internal predecessors, (3010), 1006 states have call successors, (1006), 221 states have call predecessors, (1006), 220 states have return successors, (1004), 965 states have call predecessors, (1004), 1004 states have call successors, (1004) [2023-11-23 21:11:26,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3397 states to 3397 states and 5020 transitions. [2023-11-23 21:11:26,901 INFO L78 Accepts]: Start accepts. Automaton has 3397 states and 5020 transitions. Word has length 336 [2023-11-23 21:11:26,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:11:26,904 INFO L495 AbstractCegarLoop]: Abstraction has 3397 states and 5020 transitions. [2023-11-23 21:11:26,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-11-23 21:11:26,904 INFO L276 IsEmpty]: Start isEmpty. Operand 3397 states and 5020 transitions. [2023-11-23 21:11:26,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2023-11-23 21:11:26,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:11:26,918 INFO L195 NwaCegarLoop]: trace histogram [41, 41, 41, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:11:26,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:11:26,919 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:11:26,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:11:26,920 INFO L85 PathProgramCache]: Analyzing trace with hash -139208121, now seen corresponding path program 1 times [2023-11-23 21:11:26,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:11:26,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873477366] [2023-11-23 21:11:26,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:26,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:11:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:11:27,544 INFO L134 CoverageAnalysis]: Checked inductivity of 3388 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3388 trivial. 0 not checked. [2023-11-23 21:11:27,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:11:27,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873477366] [2023-11-23 21:11:27,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873477366] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:11:27,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:11:27,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:11:27,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370126036] [2023-11-23 21:11:27,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:11:27,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:11:27,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:11:27,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:11:27,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:11:27,554 INFO L87 Difference]: Start difference. First operand 3397 states and 5020 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-11-23 21:11:29,595 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 21:11:34,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:11:34,920 INFO L93 Difference]: Finished difference Result 9084 states and 13359 transitions. [2023-11-23 21:11:34,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:11:34,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 340 [2023-11-23 21:11:34,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:11:34,982 INFO L225 Difference]: With dead ends: 9084 [2023-11-23 21:11:34,983 INFO L226 Difference]: Without dead ends: 5788 [2023-11-23 21:11:35,002 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 21:11:35,004 INFO L413 NwaCegarLoop]: 3353 mSDtfsCounter, 2243 mSDsluCounter, 2318 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2243 SdHoareTripleChecker+Valid, 5671 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:11:35,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2243 Valid, 5671 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 627 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2023-11-23 21:11:35,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5788 states. [2023-11-23 21:11:35,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5788 to 5782. [2023-11-23 21:11:35,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5782 states, 3686 states have (on average 1.3800868149755834) internal successors, (5087), 3810 states have internal predecessors, (5087), 1699 states have call successors, (1699), 397 states have call predecessors, (1699), 396 states have return successors, (1697), 1618 states have call predecessors, (1697), 1697 states have call successors, (1697) [2023-11-23 21:11:35,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5782 states to 5782 states and 8483 transitions. [2023-11-23 21:11:35,546 INFO L78 Accepts]: Start accepts. Automaton has 5782 states and 8483 transitions. Word has length 340 [2023-11-23 21:11:35,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:11:35,549 INFO L495 AbstractCegarLoop]: Abstraction has 5782 states and 8483 transitions. [2023-11-23 21:11:35,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-11-23 21:11:35,550 INFO L276 IsEmpty]: Start isEmpty. Operand 5782 states and 8483 transitions. [2023-11-23 21:11:35,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2023-11-23 21:11:35,585 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:11:35,585 INFO L195 NwaCegarLoop]: trace histogram [66, 66, 66, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:11:35,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:11:35,586 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:11:35,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:11:35,598 INFO L85 PathProgramCache]: Analyzing trace with hash -653977955, now seen corresponding path program 1 times [2023-11-23 21:11:35,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:11:35,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379382572] [2023-11-23 21:11:35,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:35,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:11:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:11:37,952 INFO L134 CoverageAnalysis]: Checked inductivity of 8694 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8694 trivial. 0 not checked. [2023-11-23 21:11:37,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:11:37,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379382572] [2023-11-23 21:11:37,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379382572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:11:37,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:11:37,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:11:37,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053218788] [2023-11-23 21:11:37,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:11:37,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:11:37,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:11:37,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:11:37,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:11:37,958 INFO L87 Difference]: Start difference. First operand 5782 states and 8483 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 3 states have call successors, (86), 3 states have call predecessors, (86), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82)