./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-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00391432-cc0f-459a-b72f-ecfb9b98cb39/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00391432-cc0f-459a-b72f-ecfb9b98cb39/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00391432-cc0f-459a-b72f-ecfb9b98cb39/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00391432-cc0f-459a-b72f-ecfb9b98cb39/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00391432-cc0f-459a-b72f-ecfb9b98cb39/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00391432-cc0f-459a-b72f-ecfb9b98cb39/bin/utaipan-verify-NcY6lQBIFX --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 d57db9f03a5170fd6970a4ac4989029ee35a0e85ad6a1c5337395bb7ff185d1b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:51:47,378 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:51:47,458 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00391432-cc0f-459a-b72f-ecfb9b98cb39/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:51:47,464 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:51:47,464 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:51:47,491 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:51:47,492 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:51:47,492 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:51:47,493 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:51:47,494 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:51:47,494 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:51:47,495 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:51:47,496 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:51:47,496 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:51:47,497 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:51:47,497 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:51:47,498 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:51:47,498 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:51:47,499 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:51:47,500 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:51:47,500 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:51:47,501 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:51:47,502 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:51:47,503 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:51:47,503 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:51:47,504 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:51:47,504 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:51:47,505 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:51:47,505 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:51:47,506 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:51:47,506 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:51:47,507 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:51:47,507 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:51:47,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:51:47,508 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:51:47,509 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:51:47,511 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:51:47,511 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:51:47,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:51:47,512 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:51:47,512 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:51:47,513 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:51:47,513 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_00391432-cc0f-459a-b72f-ecfb9b98cb39/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00391432-cc0f-459a-b72f-ecfb9b98cb39/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d57db9f03a5170fd6970a4ac4989029ee35a0e85ad6a1c5337395bb7ff185d1b [2023-11-12 00:51:47,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:51:47,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:51:47,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:51:47,859 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:51:47,859 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:51:47,861 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00391432-cc0f-459a-b72f-ecfb9b98cb39/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2023-11-12 00:51:51,103 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:51:52,091 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:51:52,093 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00391432-cc0f-459a-b72f-ecfb9b98cb39/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2023-11-12 00:51:52,175 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00391432-cc0f-459a-b72f-ecfb9b98cb39/bin/utaipan-verify-NcY6lQBIFX/data/60413cd25/40b848ca203e44e2830fe44e78163c40/FLAG442d30dde [2023-11-12 00:51:52,192 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00391432-cc0f-459a-b72f-ecfb9b98cb39/bin/utaipan-verify-NcY6lQBIFX/data/60413cd25/40b848ca203e44e2830fe44e78163c40 [2023-11-12 00:51:52,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:51:52,197 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:51:52,200 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:51:52,201 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:51:52,206 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:51:52,207 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:51:52" (1/1) ... [2023-11-12 00:51:52,208 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46041895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:52, skipping insertion in model container [2023-11-12 00:51:52,209 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:51:52" (1/1) ... [2023-11-12 00:51:52,531 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:51:56,392 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_00391432-cc0f-459a-b72f-ecfb9b98cb39/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i[477998,478011] [2023-11-12 00:51:56,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:51:56,799 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:51:57,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [9387] [2023-11-12 00:51:57,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapq %0": "=r" (val): "0" (val)); [9394] [2023-11-12 00:51:57,037 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [9435] [2023-11-12 00:51:57,038 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [9438] [2023-11-12 00:51:57,038 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [9441] [2023-11-12 00:51:57,038 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [9444] [2023-11-12 00:51:57,042 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"); [9532-9533] [2023-11-12 00:51:57,043 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"); [9552-9553] [2023-11-12 00:51:57,044 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"); [9557-9558] [2023-11-12 00:51:57,045 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"); [9562-9563] [2023-11-12 00:51:57,045 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"); [9567-9568] [2023-11-12 00:51:57,057 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)); [10029-10030] [2023-11-12 00:51:57,144 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)); [10037-10038] [2023-11-12 00:51:57,151 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)); [10114-10115] [2023-11-12 00:51:57,153 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)); [10143-10144] [2023-11-12 00:51:57,155 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)); [10191-10192] [2023-11-12 00:51:57,157 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)); [10200-10201] [2023-11-12 00:51:57,159 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)); [10224-10225] [2023-11-12 00:51:57,160 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)); [10254-10255] [2023-11-12 00:51:57,161 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)); [10284-10285] [2023-11-12 00:51:57,365 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-4.2-rc1.tar.xz--X--32_7a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/4833/dscv_tempdir/dscv/ri/32_7a/drivers/infiniband/ulp/isert/ib_isert.c"), "i" (808), "i" (12UL)); [11596-11597] [2023-11-12 00:51:57,771 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_00391432-cc0f-459a-b72f-ecfb9b98cb39/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i[477998,478011] [2023-11-12 00:51:57,814 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:51:57,996 WARN L672 CHandler]: The function __cmpxchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:51:57,996 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:51:57,997 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:51:58,005 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:51:58,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:58 WrapperNode [2023-11-12 00:51:58,006 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:51:58,008 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:51:58,008 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:51:58,008 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:51:58,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:58" (1/1) ... [2023-11-12 00:51:58,203 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:58" (1/1) ... [2023-11-12 00:51:58,604 INFO L138 Inliner]: procedures = 483, calls = 3016, calls flagged for inlining = 237, calls inlined = 184, statements flattened = 7455 [2023-11-12 00:51:58,606 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:51:58,607 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:51:58,607 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:51:58,607 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:51:58,618 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:58" (1/1) ... [2023-11-12 00:51:58,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:58" (1/1) ... [2023-11-12 00:51:58,685 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:58" (1/1) ... [2023-11-12 00:51:58,686 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:58" (1/1) ... [2023-11-12 00:51:58,859 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:58" (1/1) ... [2023-11-12 00:51:58,883 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:58" (1/1) ... [2023-11-12 00:51:58,929 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:58" (1/1) ... [2023-11-12 00:51:58,951 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:58" (1/1) ... [2023-11-12 00:51:58,997 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:51:58,998 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:51:58,998 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:51:58,998 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:51:58,999 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:58" (1/1) ... [2023-11-12 00:51:59,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:51:59,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00391432-cc0f-459a-b72f-ecfb9b98cb39/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:51:59,039 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00391432-cc0f-459a-b72f-ecfb9b98cb39/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:51:59,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00391432-cc0f-459a-b72f-ecfb9b98cb39/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:51:59,086 INFO L130 BoogieDeclarations]: Found specification of procedure ib_wc_status_msg [2023-11-12 00:51:59,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_wc_status_msg [2023-11-12 00:51:59,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:51:59,087 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:51:59,087 INFO L130 BoogieDeclarations]: Found specification of procedure isert_setup_id [2023-11-12 00:51:59,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_setup_id [2023-11-12 00:51:59,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:51:59,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:51:59,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_isert_conn [2023-11-12 00:51:59,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_isert_conn [2023-11-12 00:51:59,089 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-11-12 00:51:59,089 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-11-12 00:51:59,089 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2023-11-12 00:51:59,089 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2023-11-12 00:51:59,089 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_stop_dataout_timer [2023-11-12 00:51:59,090 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_stop_dataout_timer [2023-11-12 00:51:59,090 INFO L130 BoogieDeclarations]: Found specification of procedure rdma_destroy_id [2023-11-12 00:51:59,090 INFO L138 BoogieDeclarations]: Found implementation of procedure rdma_destroy_id [2023-11-12 00:51:59,090 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-11-12 00:51:59,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-11-12 00:51:59,091 INFO L130 BoogieDeclarations]: Found specification of procedure isert_cq_work [2023-11-12 00:51:59,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_cq_work [2023-11-12 00:51:59,091 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-12 00:51:59,091 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-12 00:51:59,091 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_recv [2023-11-12 00:51:59,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_recv [2023-11-12 00:51:59,092 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_device [2023-11-12 00:51:59,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_device [2023-11-12 00:51:59,092 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 00:51:59,092 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 00:51:59,092 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-12 00:51:59,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_isert_conn [2023-11-12 00:51:59,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_isert_conn [2023-11-12 00:51:59,093 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_unmap_single [2023-11-12 00:51:59,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_unmap_single [2023-11-12 00:51:59,093 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_send_wr [2023-11-12 00:51:59,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_send_wr [2023-11-12 00:51:59,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2023-11-12 00:51:59,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2023-11-12 00:51:59,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:51:59,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:51:59,095 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 00:51:59,095 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 00:51:59,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2023-11-12 00:51:59,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2023-11-12 00:51:59,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:51:59,095 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_address [2023-11-12 00:51:59,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_address [2023-11-12 00:51:59,096 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait_conn [2023-11-12 00:51:59,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait_conn [2023-11-12 00:51:59,096 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2023-11-12 00:51:59,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2023-11-12 00:51:59,097 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-12 00:51:59,097 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-12 00:51:59,097 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2023-11-12 00:51:59,097 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2023-11-12 00:51:59,097 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_map_single [2023-11-12 00:51:59,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_map_single [2023-11-12 00:51:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:51:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_terminate [2023-11-12 00:51:59,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_terminate [2023-11-12 00:51:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 00:51:59,098 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 00:51:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:51:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure isert_prot_cmd [2023-11-12 00:51:59,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_prot_cmd [2023-11-12 00:51:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:51:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-12 00:51:59,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-12 00:51:59,100 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2023-11-12 00:51:59,100 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2023-11-12 00:51:59,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:51:59,100 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:51:59,101 INFO L130 BoogieDeclarations]: Found specification of procedure isert_release_work [2023-11-12 00:51:59,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_release_work [2023-11-12 00:51:59,101 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_np [2023-11-12 00:51:59,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_np [2023-11-12 00:51:59,101 INFO L130 BoogieDeclarations]: Found specification of procedure isert_comp_put [2023-11-12 00:51:59,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_comp_put [2023-11-12 00:51:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-12 00:51:59,102 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-12 00:51:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-12 00:51:59,102 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-12 00:51:59,102 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2023-11-12 00:51:59,102 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2023-11-12 00:51:59,103 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_from_buffer [2023-11-12 00:51:59,103 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_from_buffer [2023-11-12 00:51:59,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-12 00:51:59,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-12 00:51:59,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:51:59,106 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-11-12 00:51:59,106 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-11-12 00:51:59,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:51:59,106 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-12 00:51:59,107 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-12 00:51:59,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:51:59,108 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-12 00:51:59,108 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:51:59,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:51:59,108 INFO L130 BoogieDeclarations]: Found specification of procedure isert_completion_put [2023-11-12 00:51:59,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_completion_put [2023-11-12 00:51:59,109 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-12 00:51:59,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-12 00:51:59,109 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_data_buf [2023-11-12 00:51:59,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_data_buf [2023-11-12 00:51:59,110 INFO L130 BoogieDeclarations]: Found specification of procedure isert_inv_rkey [2023-11-12 00:51:59,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_inv_rkey [2023-11-12 00:51:59,110 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-12 00:51:59,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-12 00:51:59,110 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_cpu [2023-11-12 00:51:59,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_cpu [2023-11-12 00:51:59,111 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 00:51:59,111 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 00:51:59,111 INFO L130 BoogieDeclarations]: Found specification of procedure isert_allocate_cmd [2023-11-12 00:51:59,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_allocate_cmd [2023-11-12 00:51:59,112 INFO L130 BoogieDeclarations]: Found specification of procedure isert_do_control_comp [2023-11-12 00:51:59,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_do_control_comp [2023-11-12 00:51:59,112 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_conn [2023-11-12 00:51:59,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_conn [2023-11-12 00:51:59,112 INFO L130 BoogieDeclarations]: Found specification of procedure isert_connect_release [2023-11-12 00:51:59,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_connect_release [2023-11-12 00:51:59,114 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_comps [2023-11-12 00:51:59,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_comps [2023-11-12 00:51:59,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:51:59,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:51:59,116 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2023-11-12 00:51:59,119 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2023-11-12 00:51:59,119 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-12 00:51:59,120 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-12 00:51:59,120 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-12 00:51:59,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-12 00:51:59,120 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-12 00:51:59,122 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-12 00:51:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:51:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:51:59,128 INFO L130 BoogieDeclarations]: Found specification of procedure isert_device_put [2023-11-12 00:51:59,129 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_device_put [2023-11-12 00:51:59,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:51:59,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:51:59,129 INFO L130 BoogieDeclarations]: Found specification of procedure isert_map_data_buf [2023-11-12 00:51:59,129 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_map_data_buf [2023-11-12 00:51:59,129 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-12 00:51:59,130 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-12 00:51:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_conn [2023-11-12 00:51:59,130 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_conn [2023-11-12 00:51:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_send [2023-11-12 00:51:59,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_send [2023-11-12 00:51:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_tx_hdrs [2023-11-12 00:51:59,131 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_tx_hdrs [2023-11-12 00:51:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2023-11-12 00:51:59,131 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2023-11-12 00:51:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-11-12 00:51:59,131 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-11-12 00:51:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure ib_free_fast_reg_page_list [2023-11-12 00:51:59,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_free_fast_reg_page_list [2023-11-12 00:51:59,132 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-11-12 00:51:59,132 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-11-12 00:51:59,132 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 00:51:59,132 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 00:51:59,132 INFO L130 BoogieDeclarations]: Found specification of procedure isert_aborted_task [2023-11-12 00:51:59,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_aborted_task [2023-11-12 00:51:59,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 00:51:59,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 00:51:59,133 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2023-11-12 00:51:59,133 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2023-11-12 00:51:59,133 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_response [2023-11-12 00:51:59,134 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_response [2023-11-12 00:51:59,134 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait4flush [2023-11-12 00:51:59,134 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait4flush [2023-11-12 00:51:59,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:51:59,134 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:51:59,134 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:51:59,134 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:51:59,135 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-12 00:51:59,135 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-12 00:51:59,135 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_login_buf [2023-11-12 00:51:59,135 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_login_buf [2023-11-12 00:51:59,135 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-12 00:51:59,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-12 00:51:59,136 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-11-12 00:51:59,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-11-12 00:51:59,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:51:59,136 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-12 00:51:59,136 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-12 00:51:59,136 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_priv_cmd [2023-11-12 00:51:59,137 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_priv_cmd [2023-11-12 00:51:59,137 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_nopin [2023-11-12 00:51:59,137 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_nopin [2023-11-12 00:51:59,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:51:59,137 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2023-11-12 00:51:59,137 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2023-11-12 00:51:59,137 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_rdma [2023-11-12 00:51:59,138 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_rdma [2023-11-12 00:51:59,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:51:59,138 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:51:59,138 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:51:59,138 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_recv [2023-11-12 00:51:59,138 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_recv [2023-11-12 00:51:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-12 00:51:59,139 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-12 00:51:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 00:51:59,139 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 00:51:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-11-12 00:51:59,139 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-11-12 00:51:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-12 00:51:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-12 00:51:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-12 00:51:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-12 00:51:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rdma_post_recvl [2023-11-12 00:51:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rdma_post_recvl [2023-11-12 00:51:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_free_fastreg_pool [2023-11-12 00:51:59,141 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_free_fastreg_pool [2023-11-12 00:51:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure transport_send_check_condition_and_sense [2023-11-12 00:51:59,141 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_send_check_condition_and_sense [2023-11-12 00:51:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-12 00:51:59,141 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-12 00:51:59,142 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_sig_mr [2023-11-12 00:51:59,142 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_sig_mr [2023-11-12 00:51:59,142 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_free_cmd [2023-11-12 00:51:59,142 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_free_cmd [2023-11-12 00:51:59,142 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_tx_desc [2023-11-12 00:51:59,142 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_tx_desc [2023-11-12 00:51:59,142 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-12 00:51:59,143 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-12 00:51:59,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_device_list_mutex [2023-11-12 00:51:59,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_device_list_mutex [2023-11-12 00:51:59,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_device_list_mutex [2023-11-12 00:51:59,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_device_list_mutex [2023-11-12 00:51:59,143 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_workqueue_key [2023-11-12 00:51:59,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_workqueue_key [2023-11-12 00:51:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2023-11-12 00:51:59,144 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2023-11-12 00:51:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure isert_handle_prot_cmd [2023-11-12 00:51:59,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_handle_prot_cmd [2023-11-12 00:51:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dereg_mr [2023-11-12 00:51:59,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dereg_mr [2023-11-12 00:51:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure ib_req_notify_cq [2023-11-12 00:51:59,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_req_notify_cq [2023-11-12 00:51:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 00:51:59,145 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 00:51:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure isert_check_pi_status [2023-11-12 00:51:59,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_check_pi_status [2023-11-12 00:51:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2023-11-12 00:51:59,146 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2023-11-12 00:51:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:51:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure isert_create_send_desc [2023-11-12 00:51:59,146 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_create_send_desc [2023-11-12 00:51:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:51:59,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:51:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_len [2023-11-12 00:51:59,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_len [2023-11-12 00:51:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure isert_fast_reg_mr [2023-11-12 00:51:59,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_fast_reg_mr [2023-11-12 00:51:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-12 00:51:59,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-12 00:51:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2023-11-12 00:51:59,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2023-11-12 00:51:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_response [2023-11-12 00:51:59,148 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_response [2023-11-12 00:51:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_mr [2023-11-12 00:51:59,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_mr [2023-11-12 00:51:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-12 00:51:59,149 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-12 00:51:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rx_login_req [2023-11-12 00:51:59,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rx_login_req [2023-11-12 00:51:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2023-11-12 00:51:59,149 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2023-11-12 00:51:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_mapping_error [2023-11-12 00:51:59,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_mapping_error [2023-11-12 00:51:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:51:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-12 00:51:59,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-12 00:51:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure target_put_sess_cmd [2023-11-12 00:51:59,151 INFO L138 BoogieDeclarations]: Found implementation of procedure target_put_sess_cmd [2023-11-12 00:51:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure isert_set_dif_domain [2023-11-12 00:51:59,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_set_dif_domain [2023-11-12 00:51:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-11-12 00:51:59,151 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-11-12 00:51:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_pd [2023-11-12 00:51:59,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_pd [2023-11-12 00:51:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_page_list [2023-11-12 00:51:59,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_page_list [2023-11-12 00:51:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_build_rsp_pdu [2023-11-12 00:51:59,152 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_build_rsp_pdu [2023-11-12 00:52:00,418 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:52:00,427 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:52:00,629 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:52:09,215 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:52:11,172 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:52:11,172 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:52:11,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:11 BoogieIcfgContainer [2023-11-12 00:52:11,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:52:11,182 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:52:11,182 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:52:11,185 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:52:11,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:51:52" (1/3) ... [2023-11-12 00:52:11,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d79a5f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:11, skipping insertion in model container [2023-11-12 00:52:11,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:58" (2/3) ... [2023-11-12 00:52:11,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d79a5f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:11, skipping insertion in model container [2023-11-12 00:52:11,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:11" (3/3) ... [2023-11-12 00:52:11,188 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2023-11-12 00:52:11,210 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:52:11,210 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:52:11,331 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:52:11,341 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;@725f970b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:52:11,342 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:52:11,356 INFO L276 IsEmpty]: Start isEmpty. Operand has 2253 states, 1385 states have (on average 1.3155234657039712) internal successors, (1822), 1445 states have internal predecessors, (1822), 734 states have call successors, (734), 133 states have call predecessors, (734), 132 states have return successors, (728), 717 states have call predecessors, (728), 728 states have call successors, (728) [2023-11-12 00:52:11,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-12 00:52:11,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:11,392 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:52:11,393 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:52:11,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:11,399 INFO L85 PathProgramCache]: Analyzing trace with hash 565737384, now seen corresponding path program 1 times [2023-11-12 00:52:11,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:52:11,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955444067] [2023-11-12 00:52:11,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:11,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:52:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:12,310 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-12 00:52:12,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:52:12,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955444067] [2023-11-12 00:52:12,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955444067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:12,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:52:12,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:52:12,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030546119] [2023-11-12 00:52:12,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:12,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:52:12,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:52:12,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:52:12,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:52:12,359 INFO L87 Difference]: Start difference. First operand has 2253 states, 1385 states have (on average 1.3155234657039712) internal successors, (1822), 1445 states have internal predecessors, (1822), 734 states have call successors, (734), 133 states have call predecessors, (734), 132 states have return successors, (728), 717 states have call predecessors, (728), 728 states have call successors, (728) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2023-11-12 00:52:14,420 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 [] [2023-11-12 00:52:18,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:52:22,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:52:23,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:23,495 INFO L93 Difference]: Finished difference Result 6222 states and 9125 transitions. [2023-11-12 00:52:23,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:52:23,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 69 [2023-11-12 00:52:23,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:23,548 INFO L225 Difference]: With dead ends: 6222 [2023-11-12 00:52:23,548 INFO L226 Difference]: Without dead ends: 3947 [2023-11-12 00:52:23,576 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 [2023-11-12 00:52:23,580 INFO L413 NwaCegarLoop]: 3035 mSDtfsCounter, 2476 mSDsluCounter, 2977 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2476 SdHoareTripleChecker+Valid, 6012 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:23,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2476 Valid, 6012 Invalid, 511 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 508 Invalid, 1 Unknown, 0 Unchecked, 10.7s Time] [2023-11-12 00:52:23,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3947 states. [2023-11-12 00:52:24,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3947 to 3924. [2023-11-12 00:52:24,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3924 states, 2415 states have (on average 1.3014492753623188) internal successors, (3143), 2507 states have internal predecessors, (3143), 1253 states have call successors, (1253), 256 states have call predecessors, (1253), 255 states have return successors, (1241), 1218 states have call predecessors, (1241), 1241 states have call successors, (1241) [2023-11-12 00:52:24,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3924 states to 3924 states and 5637 transitions. [2023-11-12 00:52:24,200 INFO L78 Accepts]: Start accepts. Automaton has 3924 states and 5637 transitions. Word has length 69 [2023-11-12 00:52:24,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:52:24,201 INFO L495 AbstractCegarLoop]: Abstraction has 3924 states and 5637 transitions. [2023-11-12 00:52:24,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2023-11-12 00:52:24,202 INFO L276 IsEmpty]: Start isEmpty. Operand 3924 states and 5637 transitions. [2023-11-12 00:52:24,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-12 00:52:24,211 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:24,212 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:52:24,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:52:24,213 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:52:24,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:24,213 INFO L85 PathProgramCache]: Analyzing trace with hash 913128093, now seen corresponding path program 1 times [2023-11-12 00:52:24,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:52:24,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550160369] [2023-11-12 00:52:24,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:24,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:52:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:25,244 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-12 00:52:25,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:52:25,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550160369] [2023-11-12 00:52:25,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550160369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:25,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:52:25,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:52:25,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382591740] [2023-11-12 00:52:25,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:25,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:52:25,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:52:25,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:52:25,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:52:25,249 INFO L87 Difference]: Start difference. First operand 3924 states and 5637 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-12 00:52:28,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:52:29,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:52:30,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:52:31,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:31,888 INFO L93 Difference]: Finished difference Result 3944 states and 5647 transitions. [2023-11-12 00:52:31,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:52:31,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 74 [2023-11-12 00:52:31,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:31,931 INFO L225 Difference]: With dead ends: 3944 [2023-11-12 00:52:31,931 INFO L226 Difference]: Without dead ends: 3940 [2023-11-12 00:52:31,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:52:31,937 INFO L413 NwaCegarLoop]: 2997 mSDtfsCounter, 3132 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3132 SdHoareTripleChecker+Valid, 3063 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:31,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3132 Valid, 3063 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-11-12 00:52:31,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3940 states. [2023-11-12 00:52:32,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3940 to 3938. [2023-11-12 00:52:32,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3938 states, 2423 states have (on average 1.2992158481221625) internal successors, (3148), 2513 states have internal predecessors, (3148), 1251 states have call successors, (1251), 264 states have call predecessors, (1251), 263 states have return successors, (1241), 1218 states have call predecessors, (1241), 1241 states have call successors, (1241) [2023-11-12 00:52:32,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 5640 transitions. [2023-11-12 00:52:32,445 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 5640 transitions. Word has length 74 [2023-11-12 00:52:32,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:52:32,446 INFO L495 AbstractCegarLoop]: Abstraction has 3938 states and 5640 transitions. [2023-11-12 00:52:32,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-12 00:52:32,446 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 5640 transitions. [2023-11-12 00:52:32,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-12 00:52:32,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:32,451 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:52:32,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:52:32,451 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:52:32,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:32,452 INFO L85 PathProgramCache]: Analyzing trace with hash 537419633, now seen corresponding path program 1 times [2023-11-12 00:52:32,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:52:32,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046756231] [2023-11-12 00:52:32,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:32,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:52:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:32,886 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-12 00:52:32,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:52:32,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046756231] [2023-11-12 00:52:32,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046756231] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:32,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:52:32,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:52:32,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277970009] [2023-11-12 00:52:32,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:32,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:52:32,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:52:32,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:52:32,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:52:32,892 INFO L87 Difference]: Start difference. First operand 3938 states and 5640 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-12 00:52:35,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:52:37,992 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 []