./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 527bcce2 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_a21a62ed-c063-4ad1-bd15-251094e7e00b/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21a62ed-c063-4ad1-bd15-251094e7e00b/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21a62ed-c063-4ad1-bd15-251094e7e00b/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21a62ed-c063-4ad1-bd15-251094e7e00b/bin/utaipan-verify-QoSU8krkJ5/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_a21a62ed-c063-4ad1-bd15-251094e7e00b/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21a62ed-c063-4ad1-bd15-251094e7e00b/bin/utaipan-verify-QoSU8krkJ5 --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-527bcce [2023-11-21 19:45:58,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:45:58,222 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21a62ed-c063-4ad1-bd15-251094e7e00b/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-21 19:45:58,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:45:58,233 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:45:58,272 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:45:58,273 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:45:58,273 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:45:58,274 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:45:58,279 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:45:58,280 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:45:58,280 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:45:58,281 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:45:58,283 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:45:58,283 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:45:58,284 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:45:58,284 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:45:58,284 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:45:58,285 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:45:58,285 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:45:58,286 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:45:58,286 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:45:58,287 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:45:58,288 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:45:58,288 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:45:58,289 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:45:58,289 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:45:58,290 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:45:58,290 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:45:58,290 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:45:58,292 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:45:58,292 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:45:58,292 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:45:58,293 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:45:58,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:45:58,293 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:45:58,294 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:45:58,294 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:45:58,294 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:45:58,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:45:58,294 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:45:58,295 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:45:58,295 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:45:58,295 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:45:58,296 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_a21a62ed-c063-4ad1-bd15-251094e7e00b/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21a62ed-c063-4ad1-bd15-251094e7e00b/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0972555dcd79a5f779d586a5c7ed93c052eba30949ae32332c80aa686a12f15 [2023-11-21 19:45:58,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:45:58,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:45:58,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:45:58,664 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:45:58,665 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:45:58,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21a62ed-c063-4ad1-bd15-251094e7e00b/bin/utaipan-verify-QoSU8krkJ5/../../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 [2023-11-21 19:46:01,732 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:46:02,523 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:46:02,524 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21a62ed-c063-4ad1-bd15-251094e7e00b/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 [2023-11-21 19:46:02,590 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21a62ed-c063-4ad1-bd15-251094e7e00b/bin/utaipan-verify-QoSU8krkJ5/data/90d699497/6fd7c814f0ec4987aa8423d401f15b26/FLAG2ccbb4aac [2023-11-21 19:46:02,608 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21a62ed-c063-4ad1-bd15-251094e7e00b/bin/utaipan-verify-QoSU8krkJ5/data/90d699497/6fd7c814f0ec4987aa8423d401f15b26 [2023-11-21 19:46:02,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:46:02,615 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:46:02,618 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:46:02,619 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:46:02,624 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:46:02,625 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:46:02" (1/1) ... [2023-11-21 19:46:02,626 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c9bfa7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:46:02, skipping insertion in model container [2023-11-21 19:46:02,626 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:46:02" (1/1) ... [2023-11-21 19:46:02,872 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:46:03,646 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [9725] [2023-11-21 19:46:03,647 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] [2023-11-21 19:46:04,172 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_a21a62ed-c063-4ad1-bd15-251094e7e00b/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] [2023-11-21 19:46:05,900 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:46:05,945 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:46:06,223 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [9725] [2023-11-21 19:46:06,224 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] [2023-11-21 19:46:06,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapq %0": "=r" (val): "0" (val)); [9809] [2023-11-21 19:46:06,230 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [9854] [2023-11-21 19:46:06,230 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [9857] [2023-11-21 19:46:06,230 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [9860] [2023-11-21 19:46:06,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [9863] [2023-11-21 19:46:06,238 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] [2023-11-21 19:46:06,239 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] [2023-11-21 19:46:06,239 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] [2023-11-21 19:46:06,240 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] [2023-11-21 19:46:06,275 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] [2023-11-21 19:46:06,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [9955] [2023-11-21 19:46:06,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [9958] [2023-11-21 19:46:06,277 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [9961] [2023-11-21 19:46:06,277 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [9964] [2023-11-21 19:46:06,289 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_a21a62ed-c063-4ad1-bd15-251094e7e00b/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] [2023-11-21 19:46:06,296 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] [2023-11-21 19:46:06,350 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] [2023-11-21 19:46:06,351 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/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] [2023-11-21 19:46:06,382 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] [2023-11-21 19:46:06,384 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] [2023-11-21 19:46:06,509 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] [2023-11-21 19:46:06,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:46:06,858 WARN L675 CHandler]: The function strstr is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:46:06,858 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:46:06,859 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:46:06,859 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:46:06,867 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:46:06,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:46:06 WrapperNode [2023-11-21 19:46:06,868 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:46:06,870 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:46:06,871 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:46:06,871 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:46:06,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:46:06" (1/1) ... [2023-11-21 19:46:06,999 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:46:06" (1/1) ... [2023-11-21 19:46:07,237 INFO L138 Inliner]: procedures = 303, calls = 2599, calls flagged for inlining = 133, calls inlined = 125, statements flattened = 6425 [2023-11-21 19:46:07,238 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:46:07,239 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:46:07,239 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:46:07,240 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:46:07,250 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:46:06" (1/1) ... [2023-11-21 19:46:07,251 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:46:06" (1/1) ... [2023-11-21 19:46:07,289 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:46:06" (1/1) ... [2023-11-21 19:46:07,290 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:46:06" (1/1) ... [2023-11-21 19:46:07,511 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:46:06" (1/1) ... [2023-11-21 19:46:07,552 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:46:06" (1/1) ... [2023-11-21 19:46:07,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:46:06" (1/1) ... [2023-11-21 19:46:07,633 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:46:06" (1/1) ... [2023-11-21 19:46:07,759 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:46:07,760 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:46:07,760 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:46:07,761 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:46:07,761 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:46:06" (1/1) ... [2023-11-21 19:46:07,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:46:07,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21a62ed-c063-4ad1-bd15-251094e7e00b/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:46:07,798 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21a62ed-c063-4ad1-bd15-251094e7e00b/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:46:07,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a21a62ed-c063-4ad1-bd15-251094e7e00b/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:46:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-21 19:46:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-21 19:46:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_get_task_tag [2023-11-21 19:46:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_get_task_tag [2023-11-21 19:46:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure qlt_unreg_sess [2023-11-21 19:46:07,852 INFO L138 BoogieDeclarations]: Found implementation of procedure qlt_unreg_sess [2023-11-21 19:46:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-21 19:46:07,853 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-21 19:46:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_handle_dif_err [2023-11-21 19:46:07,853 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_handle_dif_err [2023-11-21 19:46:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_shutdown_session [2023-11-21 19:46:07,853 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_shutdown_session [2023-11-21 19:46:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_queue_data_in [2023-11-21 19:46:07,854 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_queue_data_in [2023-11-21 19:46:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 19:46:07,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 19:46:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_set_default_node_attrs [2023-11-21 19:46:07,854 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_set_default_node_attrs [2023-11-21 19:46:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_npiv_drop_lport [2023-11-21 19:46:07,855 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_npiv_drop_lport [2023-11-21 19:46:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure qlt_lport_register [2023-11-21 19:46:07,855 INFO L138 BoogieDeclarations]: Found implementation of procedure qlt_lport_register [2023-11-21 19:46:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-21 19:46:07,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-21 19:46:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 19:46:07,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 19:46:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_write_pending_status [2023-11-21 19:46:07,856 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_write_pending_status [2023-11-21 19:46:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2023-11-21 19:46:07,856 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2023-11-21 19:46:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_check_stop_free [2023-11-21 19:46:07,857 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_check_stop_free [2023-11-21 19:46:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2023-11-21 19:46:07,858 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2023-11-21 19:46:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_check_prod_write_protect [2023-11-21 19:46:07,859 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_check_prod_write_protect [2023-11-21 19:46:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_set_sess_by_loop_id [2023-11-21 19:46:07,859 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_set_sess_by_loop_id [2023-11-21 19:46:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_drop_lport [2023-11-21 19:46:07,860 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_drop_lport [2023-11-21 19:46:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 19:46:07,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 19:46:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_clear_nacl_from_fcport_map [2023-11-21 19:46:07,860 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_clear_nacl_from_fcport_map [2023-11-21 19:46:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-21 19:46:07,861 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-21 19:46:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 19:46:07,861 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 19:46:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure target_fabric_configfs_init [2023-11-21 19:46:07,862 INFO L138 BoogieDeclarations]: Found implementation of procedure target_fabric_configfs_init [2023-11-21 19:46:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 19:46:07,862 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 19:46:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_write_pending [2023-11-21 19:46:07,862 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_write_pending [2023-11-21 19:46:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure arch_spin_is_locked [2023-11-21 19:46:07,863 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_spin_is_locked [2023-11-21 19:46:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_free_mcmd [2023-11-21 19:46:07,863 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_free_mcmd [2023-11-21 19:46:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_get_cmd_state [2023-11-21 19:46:07,864 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_get_cmd_state [2023-11-21 19:46:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_check_demo_mode [2023-11-21 19:46:07,865 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_check_demo_mode [2023-11-21 19:46:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_parse_wwn [2023-11-21 19:46:07,865 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_parse_wwn [2023-11-21 19:46:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_init_lport [2023-11-21 19:46:07,865 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_init_lport [2023-11-21 19:46:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-21 19:46:07,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-21 19:46:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_put_sess [2023-11-21 19:46:07,866 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_put_sess [2023-11-21 19:46:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:46:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure btree_destroy32 [2023-11-21 19:46:07,866 INFO L138 BoogieDeclarations]: Found implementation of procedure btree_destroy32 [2023-11-21 19:46:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-21 19:46:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-21 19:46:07,867 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-21 19:46:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_get_tag [2023-11-21 19:46:07,867 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_get_tag [2023-11-21 19:46:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_make_tpg [2023-11-21 19:46:07,868 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_make_tpg [2023-11-21 19:46:07,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:46:07,868 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-21 19:46:07,869 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-21 19:46:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-21 19:46:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure target_fabric_configfs_deregister [2023-11-21 19:46:07,869 INFO L138 BoogieDeclarations]: Found implementation of procedure target_fabric_configfs_deregister [2023-11-21 19:46:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_check_demo_write_protect [2023-11-21 19:46:07,869 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_check_demo_write_protect [2023-11-21 19:46:07,870 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-21 19:46:07,870 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-21 19:46:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2023-11-21 19:46:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure core_tpg_register [2023-11-21 19:46:07,871 INFO L138 BoogieDeclarations]: Found implementation of procedure core_tpg_register [2023-11-21 19:46:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_get_pr_transport_id [2023-11-21 19:46:07,871 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_get_pr_transport_id [2023-11-21 19:46:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure target_sess_cmd_list_set_waiting [2023-11-21 19:46:07,872 INFO L138 BoogieDeclarations]: Found implementation of procedure target_sess_cmd_list_set_waiting [2023-11-21 19:46:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:46:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 19:46:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_get_fabric_wwn [2023-11-21 19:46:07,872 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_get_fabric_wwn [2023-11-21 19:46:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 19:46:07,873 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 19:46:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_release_cmd [2023-11-21 19:46:07,873 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_release_cmd [2023-11-21 19:46:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-21 19:46:07,873 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-21 19:46:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_tpg_get_inst_index [2023-11-21 19:46:07,874 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_tpg_get_inst_index [2023-11-21 19:46:07,874 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2023-11-21 19:46:07,874 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2023-11-21 19:46:07,874 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-21 19:46:07,875 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-21 19:46:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_tpg_show_enable [2023-11-21 19:46:07,876 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_tpg_show_enable [2023-11-21 19:46:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_check_demo_mode_cache [2023-11-21 19:46:07,876 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_check_demo_mode_cache [2023-11-21 19:46:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_drop_tpg [2023-11-21 19:46:07,877 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_drop_tpg [2023-11-21 19:46:07,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-21 19:46:07,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-21 19:46:07,881 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_free_cmd [2023-11-21 19:46:07,881 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_free_cmd [2023-11-21 19:46:07,881 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_npiv_extract_wwn [2023-11-21 19:46:07,882 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_npiv_extract_wwn [2023-11-21 19:46:07,882 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_set_sess_by_s_id [2023-11-21 19:46:07,883 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_set_sess_by_s_id [2023-11-21 19:46:07,884 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_workqueue_key [2023-11-21 19:46:07,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_workqueue_key [2023-11-21 19:46:07,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:46:07,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2023-11-21 19:46:07,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2023-11-21 19:46:07,890 INFO L130 BoogieDeclarations]: Found specification of procedure qlt_enable_vha [2023-11-21 19:46:07,890 INFO L138 BoogieDeclarations]: Found implementation of procedure qlt_enable_vha [2023-11-21 19:46:07,891 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_shutdown_sess [2023-11-21 19:46:07,891 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_shutdown_sess [2023-11-21 19:46:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_check_demo_mode_login_only [2023-11-21 19:46:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_check_demo_mode_login_only [2023-11-21 19:46:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_aborted_task [2023-11-21 19:46:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_aborted_task [2023-11-21 19:46:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure btree_remove32 [2023-11-21 19:46:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure btree_remove32 [2023-11-21 19:46:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_queue_tm_rsp [2023-11-21 19:46:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_queue_tm_rsp [2023-11-21 19:46:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_request_failure [2023-11-21 19:46:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_request_failure [2023-11-21 19:46:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_make_lport [2023-11-21 19:46:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_make_lport [2023-11-21 19:46:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure qlt_stop_phase1 [2023-11-21 19:46:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure qlt_stop_phase1 [2023-11-21 19:46:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_get_fabric_proto_ident [2023-11-21 19:46:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_get_fabric_proto_ident [2023-11-21 19:46:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-21 19:46:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-21 19:46:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_queue_status [2023-11-21 19:46:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_queue_status [2023-11-21 19:46:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_npiv_make_lport [2023-11-21 19:46:07,895 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_npiv_make_lport [2023-11-21 19:46:07,895 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 19:46:07,895 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 19:46:07,895 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_sess_get_index [2023-11-21 19:46:07,895 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_sess_get_index [2023-11-21 19:46:07,895 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_get_pr_transport_id_len [2023-11-21 19:46:07,895 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_get_pr_transport_id_len [2023-11-21 19:46:07,896 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-11-21 19:46:07,896 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-11-21 19:46:07,896 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_handle_data [2023-11-21 19:46:07,896 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_handle_data [2023-11-21 19:46:07,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:46:07,896 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-21 19:46:07,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-21 19:46:07,897 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_format_wwn [2023-11-21 19:46:07,897 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_format_wwn [2023-11-21 19:46:07,897 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-21 19:46:07,897 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-21 19:46:07,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 19:46:07,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 19:46:07,897 INFO L130 BoogieDeclarations]: Found specification of procedure target_fabric_configfs_register [2023-11-21 19:46:07,897 INFO L138 BoogieDeclarations]: Found implementation of procedure target_fabric_configfs_register [2023-11-21 19:46:07,898 INFO L130 BoogieDeclarations]: Found specification of procedure btree_insert32 [2023-11-21 19:46:07,898 INFO L138 BoogieDeclarations]: Found implementation of procedure btree_insert32 [2023-11-21 19:46:07,898 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_release_fabric_acl [2023-11-21 19:46:07,898 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_release_fabric_acl [2023-11-21 19:46:07,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:46:07,898 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2023-11-21 19:46:07,898 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2023-11-21 19:46:07,899 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-11-21 19:46:07,899 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-11-21 19:46:07,899 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_npiv_get_fabric_name [2023-11-21 19:46:07,900 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_npiv_get_fabric_name [2023-11-21 19:46:07,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:46:07,900 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_close_session [2023-11-21 19:46:07,900 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_close_session [2023-11-21 19:46:07,900 INFO L130 BoogieDeclarations]: Found specification of procedure utsname [2023-11-21 19:46:07,900 INFO L138 BoogieDeclarations]: Found implementation of procedure utsname [2023-11-21 19:46:07,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:46:07,901 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-21 19:46:07,901 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_get_fabric_name [2023-11-21 19:46:07,901 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_get_fabric_name [2023-11-21 19:46:07,901 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_free_session [2023-11-21 19:46:07,901 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_free_session [2023-11-21 19:46:07,901 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 19:46:07,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 19:46:07,902 INFO L130 BoogieDeclarations]: Found specification of procedure btree_update32 [2023-11-21 19:46:07,902 INFO L138 BoogieDeclarations]: Found implementation of procedure btree_update32 [2023-11-21 19:46:07,902 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2023-11-21 19:46:07,902 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2023-11-21 19:46:07,902 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_parse_pr_out_transport_id [2023-11-21 19:46:07,902 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_parse_pr_out_transport_id [2023-11-21 19:46:07,902 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_make_nodeacl [2023-11-21 19:46:07,902 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_make_nodeacl [2023-11-21 19:46:07,903 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_drop_nodeacl [2023-11-21 19:46:07,903 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_drop_nodeacl [2023-11-21 19:46:07,903 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-21 19:46:07,903 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-21 19:46:07,903 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2023-11-21 19:46:07,903 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2023-11-21 19:46:07,903 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-21 19:46:07,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-21 19:46:07,904 INFO L130 BoogieDeclarations]: Found specification of procedure qlt_xmit_response [2023-11-21 19:46:07,904 INFO L138 BoogieDeclarations]: Found implementation of procedure qlt_xmit_response [2023-11-21 19:46:07,904 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_free_cmd [2023-11-21 19:46:07,904 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_free_cmd [2023-11-21 19:46:07,904 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-21 19:46:07,904 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-21 19:46:07,905 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_npiv_make_tpg [2023-11-21 19:46:07,905 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_npiv_make_tpg [2023-11-21 19:46:07,905 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_get_default_depth [2023-11-21 19:46:07,905 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_get_default_depth [2023-11-21 19:46:07,905 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_put_session [2023-11-21 19:46:07,905 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_put_session [2023-11-21 19:46:07,905 INFO L130 BoogieDeclarations]: Found specification of procedure target_reverse_dma_direction [2023-11-21 19:46:07,906 INFO L138 BoogieDeclarations]: Found implementation of procedure target_reverse_dma_direction [2023-11-21 19:46:07,906 INFO L130 BoogieDeclarations]: Found specification of procedure btree_lookup32 [2023-11-21 19:46:07,906 INFO L138 BoogieDeclarations]: Found implementation of procedure btree_lookup32 [2023-11-21 19:46:07,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:46:07,906 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-11-21 19:46:07,906 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-11-21 19:46:07,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:46:07,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:46:07,907 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_qla2xxx_alloc_fabric_acl [2023-11-21 19:46:07,907 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_qla2xxx_alloc_fabric_acl [2023-11-21 19:46:07,907 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-21 19:46:07,907 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-21 19:46:08,903 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:46:08,908 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:46:10,149 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 19:46:22,851 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:46:24,763 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:46:24,764 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 19:46:24,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:46:24 BoogieIcfgContainer [2023-11-21 19:46:24,767 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:46:24,770 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:46:24,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:46:24,774 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:46:24,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:46:02" (1/3) ... [2023-11-21 19:46:24,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19369d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:46:24, skipping insertion in model container [2023-11-21 19:46:24,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:46:06" (2/3) ... [2023-11-21 19:46:24,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19369d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:46:24, skipping insertion in model container [2023-11-21 19:46:24,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:46:24" (3/3) ... [2023-11-21 19:46:24,781 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 [2023-11-21 19:46:24,802 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:46:24,802 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:46:24,915 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:46:24,923 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;@48afe5f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:46:24,924 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:46:24,942 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) [2023-11-21 19:46:25,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2023-11-21 19:46:25,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:46:25,028 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] [2023-11-21 19:46:25,029 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:46:25,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:46:25,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1940840635, now seen corresponding path program 1 times [2023-11-21 19:46:25,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:46:25,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097593476] [2023-11-21 19:46:25,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:46:25,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:46:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:46:26,551 INFO L134 CoverageAnalysis]: Checked inductivity of 3388 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3388 trivial. 0 not checked. [2023-11-21 19:46:26,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:46:26,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097593476] [2023-11-21 19:46:26,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097593476] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:46:26,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:46:26,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:46:26,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038204289] [2023-11-21 19:46:26,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:46:26,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:46:26,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:46:26,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:46:26,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:46:26,641 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) [2023-11-21 19:46:27,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:46:29,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:46:32,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:46:32,573 INFO L93 Difference]: Finished difference Result 5339 states and 7997 transitions. [2023-11-21 19:46:32,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:46:32,576 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 [2023-11-21 19:46:32,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:46:32,653 INFO L225 Difference]: With dead ends: 5339 [2023-11-21 19:46:32,653 INFO L226 Difference]: Without dead ends: 3402 [2023-11-21 19:46:32,673 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 [2023-11-21 19:46:32,678 INFO L413 NwaCegarLoop]: 2754 mSDtfsCounter, 2367 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2367 SdHoareTripleChecker+Valid, 5139 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-11-21 19:46:32,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2367 Valid, 5139 Invalid, 585 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-11-21 19:46:32,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3402 states. [2023-11-21 19:46:32,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3402 to 3397. [2023-11-21 19:46:32,976 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) [2023-11-21 19:46:33,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3397 states to 3397 states and 5020 transitions. [2023-11-21 19:46:33,014 INFO L78 Accepts]: Start accepts. Automaton has 3397 states and 5020 transitions. Word has length 336 [2023-11-21 19:46:33,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:46:33,018 INFO L495 AbstractCegarLoop]: Abstraction has 3397 states and 5020 transitions. [2023-11-21 19:46:33,019 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) [2023-11-21 19:46:33,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3397 states and 5020 transitions. [2023-11-21 19:46:33,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2023-11-21 19:46:33,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:46:33,041 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] [2023-11-21 19:46:33,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:46:33,041 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:46:33,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:46:33,042 INFO L85 PathProgramCache]: Analyzing trace with hash -139208121, now seen corresponding path program 1 times [2023-11-21 19:46:33,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:46:33,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876602552] [2023-11-21 19:46:33,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:46:33,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:46:33,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:46:33,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3388 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3388 trivial. 0 not checked. [2023-11-21 19:46:33,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:46:33,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876602552] [2023-11-21 19:46:33,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876602552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:46:33,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:46:33,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:46:33,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800117317] [2023-11-21 19:46:33,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:46:33,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:46:33,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:46:33,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:46:33,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:46:33,794 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) [2023-11-21 19:46:35,835 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 [] [2023-11-21 19:46:40,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:46:40,347 INFO L93 Difference]: Finished difference Result 9084 states and 13359 transitions. [2023-11-21 19:46:40,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:46:40,348 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 [2023-11-21 19:46:40,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:46:40,395 INFO L225 Difference]: With dead ends: 9084 [2023-11-21 19:46:40,395 INFO L226 Difference]: Without dead ends: 5788 [2023-11-21 19:46:40,412 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 [2023-11-21 19:46:40,414 INFO L413 NwaCegarLoop]: 3353 mSDtfsCounter, 2243 mSDsluCounter, 2318 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s 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, 6.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:46:40,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2243 Valid, 5671 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 627 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2023-11-21 19:46:40,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5788 states. [2023-11-21 19:46:40,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5788 to 5782. [2023-11-21 19:46:40,738 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) [2023-11-21 19:46:40,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5782 states to 5782 states and 8483 transitions. [2023-11-21 19:46:40,788 INFO L78 Accepts]: Start accepts. Automaton has 5782 states and 8483 transitions. Word has length 340 [2023-11-21 19:46:40,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:46:40,790 INFO L495 AbstractCegarLoop]: Abstraction has 5782 states and 8483 transitions. [2023-11-21 19:46:40,791 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) [2023-11-21 19:46:40,791 INFO L276 IsEmpty]: Start isEmpty. Operand 5782 states and 8483 transitions. [2023-11-21 19:46:40,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2023-11-21 19:46:40,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:46:40,823 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] [2023-11-21 19:46:40,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:46:40,824 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:46:40,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:46:40,835 INFO L85 PathProgramCache]: Analyzing trace with hash -653977955, now seen corresponding path program 1 times [2023-11-21 19:46:40,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:46:40,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84968724] [2023-11-21 19:46:40,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:46:40,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:46:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:46:42,888 INFO L134 CoverageAnalysis]: Checked inductivity of 8694 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8694 trivial. 0 not checked. [2023-11-21 19:46:42,889 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:46:42,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84968724] [2023-11-21 19:46:42,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84968724] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:46:42,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:46:42,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 19:46:42,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118787664] [2023-11-21 19:46:42,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:46:42,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 19:46:42,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:46:42,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 19:46:42,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 19:46:42,899 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) [2023-11-21 19:46:44,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []