./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.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_8f427c3a-f46b-4119-89c5-304c9d113bb0/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f427c3a-f46b-4119-89c5-304c9d113bb0/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_8f427c3a-f46b-4119-89c5-304c9d113bb0/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f427c3a-f46b-4119-89c5-304c9d113bb0/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f427c3a-f46b-4119-89c5-304c9d113bb0/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_8f427c3a-f46b-4119-89c5-304c9d113bb0/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 b01f589d408f6e26ea7a63733affb8614d3f46d7c24e67c8e520356eb639cf0d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:10:17,277 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:10:17,357 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f427c3a-f46b-4119-89c5-304c9d113bb0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:10:17,363 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:10:17,364 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:10:17,396 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:10:17,399 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:10:17,400 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:10:17,402 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:10:17,403 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:10:17,404 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:10:17,406 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:10:17,406 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:10:17,409 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:10:17,410 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:10:17,411 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:10:17,412 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:10:17,417 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:10:17,418 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:10:17,418 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:10:17,419 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:10:17,420 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:10:17,421 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:10:17,422 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:10:17,423 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:10:17,423 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:10:17,424 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:10:17,425 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:10:17,425 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:10:17,426 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:10:17,427 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:10:17,428 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:10:17,428 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:10:17,428 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:10:17,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:10:17,429 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:10:17,430 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:10:17,430 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:10:17,430 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:10:17,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:10:17,432 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:10:17,432 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:10:17,433 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:10:17,433 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:10:17,434 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_8f427c3a-f46b-4119-89c5-304c9d113bb0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f427c3a-f46b-4119-89c5-304c9d113bb0/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b01f589d408f6e26ea7a63733affb8614d3f46d7c24e67c8e520356eb639cf0d [2023-11-23 21:10:17,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:10:17,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:10:17,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:10:17,857 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:10:17,858 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:10:17,859 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f427c3a-f46b-4119-89c5-304c9d113bb0/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2023-11-23 21:10:21,131 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:10:22,001 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:10:22,002 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f427c3a-f46b-4119-89c5-304c9d113bb0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2023-11-23 21:10:22,056 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f427c3a-f46b-4119-89c5-304c9d113bb0/bin/utaipan-verify-mE87zJ7Ire/data/f2e9ebb85/62eb032ea648422fae28054f6c92bea3/FLAGd974ac7d7 [2023-11-23 21:10:22,072 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f427c3a-f46b-4119-89c5-304c9d113bb0/bin/utaipan-verify-mE87zJ7Ire/data/f2e9ebb85/62eb032ea648422fae28054f6c92bea3 [2023-11-23 21:10:22,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:10:22,083 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:10:22,087 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:22,087 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:10:22,092 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:10:22,093 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:22" (1/1) ... [2023-11-23 21:10:22,094 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64c90872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:22, skipping insertion in model container [2023-11-23 21:10:22,095 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:22" (1/1) ... [2023-11-23 21:10:22,405 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:10:26,051 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_8f427c3a-f46b-4119-89c5-304c9d113bb0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i[472306,472319] [2023-11-23 21:10:26,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:10:26,172 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:10:26,434 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [9396] [2023-11-23 21:10:26,437 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapq %0": "=r" (val): "0" (val)); [9403] [2023-11-23 21:10:26,442 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [9575] [2023-11-23 21:10:26,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [9578] [2023-11-23 21:10:26,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [9581] [2023-11-23 21:10:26,444 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [9584] [2023-11-23 21:10:26,446 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"); [9638-9639] [2023-11-23 21:10:26,447 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; cmpxchgb %2,%1": "=a" (__ret), "+m" (*__ptr): "q" (__new), "0" (__old): "memory"); [9658-9659] [2023-11-23 21:10:26,448 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; cmpxchgw %2,%1": "=a" (__ret), "+m" (*__ptr___0): "r" (__new), "0" (__old): "memory"); [9663-9664] [2023-11-23 21:10:26,448 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; cmpxchgl %2,%1": "=a" (__ret), "+m" (*__ptr___1): "r" (__new), "0" (__old): "memory"); [9668-9669] [2023-11-23 21:10:26,449 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; cmpxchgq %2,%1": "=a" (__ret), "+m" (*__ptr___2): "r" (__new), "0" (__old): "memory"); [9673-9674] [2023-11-23 21:10:26,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (123), "i" (12UL)); [9949-9950] [2023-11-23 21:10:26,458 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (124), "i" (12UL)); [9957-9958] [2023-11-23 21:10:26,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [10034-10035] [2023-11-23 21:10:26,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [10063-10064] [2023-11-23 21:10:26,474 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" (56), "i" (12UL)); [10111-10112] [2023-11-23 21:10:26,474 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" (58), "i" (12UL)); [10120-10121] [2023-11-23 21:10:26,475 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" (70), "i" (12UL)); [10144-10145] [2023-11-23 21:10:26,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (108), "i" (12UL)); [10174-10175] [2023-11-23 21:10:26,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (120), "i" (12UL)); [10204-10205] [2023-11-23 21:10:26,709 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/753/dscv_tempdir/dscv/ri/43_2a/drivers/infiniband/ulp/isert/ib_isert.c"), "i" (808), "i" (12UL)); [11532-11533] [2023-11-23 21:10:27,191 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_8f427c3a-f46b-4119-89c5-304c9d113bb0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i[472306,472319] [2023-11-23 21:10:27,204 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:10:27,350 WARN L675 CHandler]: The function ldv_calloc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:27,350 WARN L675 CHandler]: The function __cmpxchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:27,350 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:27,350 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:10:27,359 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:10:27,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:27 WrapperNode [2023-11-23 21:10:27,360 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:27,362 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:10:27,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:10:27,362 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:10:27,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:27" (1/1) ... [2023-11-23 21:10:27,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:27" (1/1) ... [2023-11-23 21:10:27,919 INFO L138 Inliner]: procedures = 390, calls = 2850, calls flagged for inlining = 203, calls inlined = 169, statements flattened = 7282 [2023-11-23 21:10:27,920 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:10:27,921 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:10:27,922 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:10:27,922 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:10:27,934 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:27" (1/1) ... [2023-11-23 21:10:27,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:27" (1/1) ... [2023-11-23 21:10:27,977 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:27" (1/1) ... [2023-11-23 21:10:27,978 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:27" (1/1) ... [2023-11-23 21:10:28,201 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:27" (1/1) ... [2023-11-23 21:10:28,251 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:27" (1/1) ... [2023-11-23 21:10:28,301 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:27" (1/1) ... [2023-11-23 21:10:28,325 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:27" (1/1) ... [2023-11-23 21:10:28,369 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:10:28,370 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:10:28,370 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:10:28,371 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:10:28,372 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:27" (1/1) ... [2023-11-23 21:10:28,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:10:28,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f427c3a-f46b-4119-89c5-304c9d113bb0/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:10:28,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f427c3a-f46b-4119-89c5-304c9d113bb0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:10:28,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f427c3a-f46b-4119-89c5-304c9d113bb0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:10:28,462 INFO L130 BoogieDeclarations]: Found specification of procedure ib_wc_status_msg [2023-11-23 21:10:28,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_wc_status_msg [2023-11-23 21:10:28,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:10:28,462 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:10:28,462 INFO L130 BoogieDeclarations]: Found specification of procedure isert_setup_id [2023-11-23 21:10:28,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_setup_id [2023-11-23 21:10:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 21:10:28,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 21:10:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:10:28,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:10:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-11-23 21:10:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-11-23 21:10:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2023-11-23 21:10:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2023-11-23 21:10:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_stop_dataout_timer [2023-11-23 21:10:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_stop_dataout_timer [2023-11-23 21:10:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure rdma_destroy_id [2023-11-23 21:10:28,465 INFO L138 BoogieDeclarations]: Found implementation of procedure rdma_destroy_id [2023-11-23 21:10:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-11-23 21:10:28,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-11-23 21:10:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure isert_cq_work [2023-11-23 21:10:28,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_cq_work [2023-11-23 21:10:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 21:10:28,465 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 21:10:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_recv [2023-11-23 21:10:28,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_recv [2023-11-23 21:10:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_device [2023-11-23 21:10:28,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_device [2023-11-23 21:10:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:10:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_unmap_single [2023-11-23 21:10:28,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_unmap_single [2023-11-23 21:10:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_send_wr [2023-11-23 21:10:28,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_send_wr [2023-11-23 21:10:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:10:28,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:10:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:10:28,552 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:10:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:10:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_address [2023-11-23 21:10:28,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_address [2023-11-23 21:10:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait_conn [2023-11-23 21:10:28,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait_conn [2023-11-23 21:10:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2023-11-23 21:10:28,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2023-11-23 21:10:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-23 21:10:28,554 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-23 21:10:28,554 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2023-11-23 21:10:28,554 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2023-11-23 21:10:28,554 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_map_single [2023-11-23 21:10:28,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_map_single [2023-11-23 21:10:28,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:10:28,554 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_terminate [2023-11-23 21:10:28,555 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_terminate [2023-11-23 21:10:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:10:28,555 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:10:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:10:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure isert_prot_cmd [2023-11-23 21:10:28,555 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_prot_cmd [2023-11-23 21:10:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:10:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 21:10:28,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 21:10:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2023-11-23 21:10:28,556 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2023-11-23 21:10:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:10:28,556 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:10:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure isert_release_work [2023-11-23 21:10:28,557 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_release_work [2023-11-23 21:10:28,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:10:28,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:10:28,557 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_np [2023-11-23 21:10:28,557 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_np [2023-11-23 21:10:28,557 INFO L130 BoogieDeclarations]: Found specification of procedure isert_comp_put [2023-11-23 21:10:28,557 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_comp_put [2023-11-23 21:10:28,557 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-23 21:10:28,558 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-23 21:10:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-23 21:10:28,558 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-23 21:10:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2023-11-23 21:10:28,558 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2023-11-23 21:10:28,558 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_from_buffer [2023-11-23 21:10:28,559 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_from_buffer [2023-11-23 21:10:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:10:28,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:10:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:10:28,559 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-11-23 21:10:28,559 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-11-23 21:10:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:10:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-23 21:10:28,560 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-23 21:10:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:10:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:10:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:10:28,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:10:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure isert_completion_put [2023-11-23 21:10:28,561 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_completion_put [2023-11-23 21:10:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-23 21:10:28,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-23 21:10:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_data_buf [2023-11-23 21:10:28,561 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_data_buf [2023-11-23 21:10:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure isert_inv_rkey [2023-11-23 21:10:28,562 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_inv_rkey [2023-11-23 21:10:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-23 21:10:28,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-23 21:10:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_cpu [2023-11-23 21:10:28,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_cpu [2023-11-23 21:10:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:10:28,574 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:10:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure isert_allocate_cmd [2023-11-23 21:10:28,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_allocate_cmd [2023-11-23 21:10:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure isert_do_control_comp [2023-11-23 21:10:28,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_do_control_comp [2023-11-23 21:10:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_conn [2023-11-23 21:10:28,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_conn [2023-11-23 21:10:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure isert_connect_release [2023-11-23 21:10:28,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_connect_release [2023-11-23 21:10:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_comps [2023-11-23 21:10:28,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_comps [2023-11-23 21:10:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:10:28,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:10:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2023-11-23 21:10:28,576 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2023-11-23 21:10:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:10:28,576 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:10:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-23 21:10:28,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-23 21:10:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-23 21:10:28,577 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-23 21:10:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:10:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:10:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure isert_device_put [2023-11-23 21:10:28,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_device_put [2023-11-23 21:10:28,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:10:28,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:10:28,578 INFO L130 BoogieDeclarations]: Found specification of procedure isert_map_data_buf [2023-11-23 21:10:28,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_map_data_buf [2023-11-23 21:10:28,578 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 21:10:28,579 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 21:10:28,579 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_conn [2023-11-23 21:10:28,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_conn [2023-11-23 21:10:28,579 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_send [2023-11-23 21:10:28,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_send [2023-11-23 21:10:28,579 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_tx_hdrs [2023-11-23 21:10:28,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_tx_hdrs [2023-11-23 21:10:28,580 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2023-11-23 21:10:28,580 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2023-11-23 21:10:28,580 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-11-23 21:10:28,580 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-11-23 21:10:28,580 INFO L130 BoogieDeclarations]: Found specification of procedure ib_free_fast_reg_page_list [2023-11-23 21:10:28,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_free_fast_reg_page_list [2023-11-23 21:10:28,580 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-11-23 21:10:28,581 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-11-23 21:10:28,581 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:10:28,581 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:10:28,581 INFO L130 BoogieDeclarations]: Found specification of procedure isert_aborted_task [2023-11-23 21:10:28,581 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_aborted_task [2023-11-23 21:10:28,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:10:28,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:10:28,582 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2023-11-23 21:10:28,582 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2023-11-23 21:10:28,582 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_response [2023-11-23 21:10:28,582 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_response [2023-11-23 21:10:28,582 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait4flush [2023-11-23 21:10:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait4flush [2023-11-23 21:10:28,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:10:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:10:28,583 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:10:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:10:28,583 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_login_buf [2023-11-23 21:10:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_login_buf [2023-11-23 21:10:28,584 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-23 21:10:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-23 21:10:28,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:10:28,584 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 21:10:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 21:10:28,584 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_priv_cmd [2023-11-23 21:10:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_priv_cmd [2023-11-23 21:10:28,584 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_nopin [2023-11-23 21:10:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_nopin [2023-11-23 21:10:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:10:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2023-11-23 21:10:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2023-11-23 21:10:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-23 21:10:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-23 21:10:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_rdma [2023-11-23 21:10:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_rdma [2023-11-23 21:10:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:10:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:10:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:10:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_recv [2023-11-23 21:10:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_recv [2023-11-23 21:10:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-23 21:10:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-23 21:10:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 21:10:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 21:10:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-11-23 21:10:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-11-23 21:10:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-23 21:10:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-23 21:10:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rdma_post_recvl [2023-11-23 21:10:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rdma_post_recvl [2023-11-23 21:10:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 21:10:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 21:10:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_free_fastreg_pool [2023-11-23 21:10:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_free_fastreg_pool [2023-11-23 21:10:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure transport_send_check_condition_and_sense [2023-11-23 21:10:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_send_check_condition_and_sense [2023-11-23 21:10:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-23 21:10:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-23 21:10:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_sig_mr [2023-11-23 21:10:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_sig_mr [2023-11-23 21:10:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_free_cmd [2023-11-23 21:10:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_free_cmd [2023-11-23 21:10:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_tx_desc [2023-11-23 21:10:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_tx_desc [2023-11-23 21:10:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-23 21:10:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-23 21:10:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_workqueue_key [2023-11-23 21:10:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_workqueue_key [2023-11-23 21:10:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2023-11-23 21:10:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2023-11-23 21:10:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure isert_handle_prot_cmd [2023-11-23 21:10:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_handle_prot_cmd [2023-11-23 21:10:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dereg_mr [2023-11-23 21:10:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dereg_mr [2023-11-23 21:10:28,592 INFO L130 BoogieDeclarations]: Found specification of procedure ib_req_notify_cq [2023-11-23 21:10:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_req_notify_cq [2023-11-23 21:10:28,592 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:10:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:10:28,592 INFO L130 BoogieDeclarations]: Found specification of procedure isert_check_pi_status [2023-11-23 21:10:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_check_pi_status [2023-11-23 21:10:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2023-11-23 21:10:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2023-11-23 21:10:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:10:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure isert_create_send_desc [2023-11-23 21:10:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_create_send_desc [2023-11-23 21:10:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:10:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:10:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_len [2023-11-23 21:10:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_len [2023-11-23 21:10:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure isert_fast_reg_mr [2023-11-23 21:10:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_fast_reg_mr [2023-11-23 21:10:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:10:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:10:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2023-11-23 21:10:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2023-11-23 21:10:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_response [2023-11-23 21:10:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_response [2023-11-23 21:10:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_mr [2023-11-23 21:10:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_mr [2023-11-23 21:10:28,596 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-23 21:10:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-23 21:10:28,596 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rx_login_req [2023-11-23 21:10:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rx_login_req [2023-11-23 21:10:28,596 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2023-11-23 21:10:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2023-11-23 21:10:28,596 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_mapping_error [2023-11-23 21:10:28,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_mapping_error [2023-11-23 21:10:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:10:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 21:10:28,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 21:10:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure target_put_sess_cmd [2023-11-23 21:10:28,597 INFO L138 BoogieDeclarations]: Found implementation of procedure target_put_sess_cmd [2023-11-23 21:10:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure isert_set_dif_domain [2023-11-23 21:10:28,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_set_dif_domain [2023-11-23 21:10:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-11-23 21:10:28,598 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-11-23 21:10:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_pd [2023-11-23 21:10:28,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_pd [2023-11-23 21:10:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_page_list [2023-11-23 21:10:28,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_page_list [2023-11-23 21:10:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_build_rsp_pdu [2023-11-23 21:10:28,599 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_build_rsp_pdu [2023-11-23 21:10:29,946 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:10:29,961 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:10:30,260 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:10:39,526 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:10:41,790 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:10:41,790 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:10:41,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:41 BoogieIcfgContainer [2023-11-23 21:10:41,794 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:10:41,797 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:10:41,797 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:10:41,800 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:10:41,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:10:22" (1/3) ... [2023-11-23 21:10:41,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ba0df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:10:41, skipping insertion in model container [2023-11-23 21:10:41,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:27" (2/3) ... [2023-11-23 21:10:41,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ba0df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:10:41, skipping insertion in model container [2023-11-23 21:10:41,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:41" (3/3) ... [2023-11-23 21:10:41,805 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2023-11-23 21:10:41,827 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:10:41,827 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:10:41,951 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:10:41,960 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;@6264a0f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:10:41,960 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:10:41,977 INFO L276 IsEmpty]: Start isEmpty. Operand has 2184 states, 1347 states have (on average 1.3170007423904975) internal successors, (1774), 1400 states have internal predecessors, (1774), 709 states have call successors, (709), 127 states have call predecessors, (709), 126 states have return successors, (703), 692 states have call predecessors, (703), 703 states have call successors, (703) [2023-11-23 21:10:42,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-23 21:10:42,001 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:42,002 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:10:42,003 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:42,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:42,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1914882540, now seen corresponding path program 1 times [2023-11-23 21:10:42,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:10:42,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178364972] [2023-11-23 21:10:42,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:42,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:10:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:42,979 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-23 21:10:42,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:10:42,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178364972] [2023-11-23 21:10:42,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178364972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:42,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:42,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:10:42,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304205578] [2023-11-23 21:10:42,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:42,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:10:42,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:10:43,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:10:43,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:10:43,039 INFO L87 Difference]: Start difference. First operand has 2184 states, 1347 states have (on average 1.3170007423904975) internal successors, (1774), 1400 states have internal predecessors, (1774), 709 states have call successors, (709), 127 states have call predecessors, (709), 126 states have return successors, (703), 692 states have call predecessors, (703), 703 states have call successors, (703) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-23 21:10:45,102 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 21:10:49,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:52,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:53,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:55,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:56,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:56,081 INFO L93 Difference]: Finished difference Result 6025 states and 8868 transitions. [2023-11-23 21:10:56,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:10:56,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 62 [2023-11-23 21:10:56,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:56,155 INFO L225 Difference]: With dead ends: 6025 [2023-11-23 21:10:56,155 INFO L226 Difference]: Without dead ends: 3805 [2023-11-23 21:10:56,192 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 21:10:56,197 INFO L413 NwaCegarLoop]: 2957 mSDtfsCounter, 2404 mSDsluCounter, 2899 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2404 SdHoareTripleChecker+Valid, 5856 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:56,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2404 Valid, 5856 Invalid, 494 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 489 Invalid, 3 Unknown, 0 Unchecked, 12.6s Time] [2023-11-23 21:10:56,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3805 states. [2023-11-23 21:10:56,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3805 to 3802. [2023-11-23 21:10:56,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3802 states, 2343 states have (on average 1.3034571062740077) internal successors, (3054), 2431 states have internal predecessors, (3054), 1215 states have call successors, (1215), 244 states have call predecessors, (1215), 243 states have return successors, (1212), 1190 states have call predecessors, (1212), 1212 states have call successors, (1212) [2023-11-23 21:10:56,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3802 states to 3802 states and 5481 transitions. [2023-11-23 21:10:56,785 INFO L78 Accepts]: Start accepts. Automaton has 3802 states and 5481 transitions. Word has length 62 [2023-11-23 21:10:56,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:56,786 INFO L495 AbstractCegarLoop]: Abstraction has 3802 states and 5481 transitions. [2023-11-23 21:10:56,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-23 21:10:56,786 INFO L276 IsEmpty]: Start isEmpty. Operand 3802 states and 5481 transitions. [2023-11-23 21:10:56,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-23 21:10:56,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:56,811 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:10:56,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:10:56,812 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:10:56,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:56,813 INFO L85 PathProgramCache]: Analyzing trace with hash 564801593, now seen corresponding path program 1 times [2023-11-23 21:10:56,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:10:56,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445417232] [2023-11-23 21:10:56,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:56,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:10:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:57,515 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-11-23 21:10:57,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:10:57,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445417232] [2023-11-23 21:10:57,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445417232] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:57,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:57,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:10:57,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048771573] [2023-11-23 21:10:57,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:57,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:10:57,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:10:57,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:10:57,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:10:57,522 INFO L87 Difference]: Start difference. First operand 3802 states and 5481 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-23 21:10:59,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []