./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_a6c87a79-e739-4c62-8a3b-ffea58ee2c2a/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c87a79-e739-4c62-8a3b-ffea58ee2c2a/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c87a79-e739-4c62-8a3b-ffea58ee2c2a/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c87a79-e739-4c62-8a3b-ffea58ee2c2a/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c87a79-e739-4c62-8a3b-ffea58ee2c2a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c87a79-e739-4c62-8a3b-ffea58ee2c2a/bin/utaipan-verify-SwPr7d2a91 --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 f37e3824e515882c7bcf8c367d3f56b0297fad2493f001664c6f9188e65f0eab --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:54:14,495 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:54:14,627 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c87a79-e739-4c62-8a3b-ffea58ee2c2a/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:54:14,642 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:54:14,643 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:54:14,692 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:54:14,693 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:54:14,693 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:54:14,695 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:54:14,701 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:54:14,702 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:54:14,703 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:54:14,704 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:54:14,706 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:54:14,707 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:54:14,708 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:54:14,708 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:54:14,709 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:54:14,709 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:54:14,710 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:54:14,711 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:54:14,712 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:54:14,713 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:54:14,714 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:54:14,714 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:54:14,715 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:54:14,716 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:54:14,716 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:54:14,717 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:54:14,718 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:54:14,719 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:54:14,720 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:54:14,720 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:54:14,721 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:54:14,721 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:54:14,722 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:54:14,722 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:54:14,722 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:54:14,723 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:54:14,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:54:14,724 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:54:14,724 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:54:14,725 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:54:14,725 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:54:14,726 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_a6c87a79-e739-4c62-8a3b-ffea58ee2c2a/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c87a79-e739-4c62-8a3b-ffea58ee2c2a/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f37e3824e515882c7bcf8c367d3f56b0297fad2493f001664c6f9188e65f0eab [2023-11-24 23:54:15,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:54:15,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:54:15,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:54:15,131 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:54:15,132 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:54:15,133 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c87a79-e739-4c62-8a3b-ffea58ee2c2a/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2023-11-24 23:54:18,480 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:54:19,289 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:54:19,290 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c87a79-e739-4c62-8a3b-ffea58ee2c2a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2023-11-24 23:54:19,346 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c87a79-e739-4c62-8a3b-ffea58ee2c2a/bin/utaipan-verify-SwPr7d2a91/data/18615bdcd/bddc348cff1840feb0572a55b7a05c82/FLAG206911ab7 [2023-11-24 23:54:19,363 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c87a79-e739-4c62-8a3b-ffea58ee2c2a/bin/utaipan-verify-SwPr7d2a91/data/18615bdcd/bddc348cff1840feb0572a55b7a05c82 [2023-11-24 23:54:19,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:54:19,372 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:54:19,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:54:19,383 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:54:19,389 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:54:19,390 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:54:19" (1/1) ... [2023-11-24 23:54:19,391 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@adfcdab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:19, skipping insertion in model container [2023-11-24 23:54:19,392 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:54:19" (1/1) ... [2023-11-24 23:54:19,535 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:54:21,723 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_a6c87a79-e739-4c62-8a3b-ffea58ee2c2a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i[213319,213332] [2023-11-24 23:54:21,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:54:21,875 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:54:22,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [4070] [2023-11-24 23:54:22,013 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4077-4078] [2023-11-24 23:54:22,014 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/zakharov_benchmarks/bench/cpa/inst/current/envs/linux-3.8-rc1/linux-3.8-rc1/arch/x86/include/asm/paravirt.h"), "i" (825), "i" (12UL)); [4109-4110] [2023-11-24 23:54:22,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [4115-4117] [2023-11-24 23:54:22,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [4204] [2023-11-24 23:54:22,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [4211] [2023-11-24 23:54:22,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [4233] [2023-11-24 23:54:22,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [4240] [2023-11-24 23:54:22,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [4247] [2023-11-24 23:54:22,026 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [4254] [2023-11-24 23:54:22,026 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [4261] [2023-11-24 23:54:22,051 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" (98), "i" (12UL)); [4371-4372] [2023-11-24 23:54:22,052 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" (99), "i" (12UL)); [4379-4380] [2023-11-24 23:54:22,058 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)); [4443-4444] [2023-11-24 23:54:22,062 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)); [4471-4472] [2023-11-24 23:54:22,064 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" (79), "i" (12UL)); [4504-4505] [2023-11-24 23:54:22,067 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" (91), "i" (12UL)); [4527-4528] [2023-11-24 23:54:22,300 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/zakharov_benchmarks/bench/cpa/work/current--X--drivers/block/cpqarray.ko--X--x1linux-3.8-rc1--X--32_7a--X--cpachecker/linux-3.8-rc1/csd_deg_dscv/12/dscv_tempdir/dscv/ri/32_7a/drivers/block/cpqarray.c.prepared"), "i" (970), "i" (12UL)); [5920-5921] [2023-11-24 23:54:22,357 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [6248] [2023-11-24 23:54:22,358 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [6251] [2023-11-24 23:54:22,358 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [6254] [2023-11-24 23:54:22,359 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [6257] [2023-11-24 23:54:22,359 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)arg): "ebx"); [6260] [2023-11-24 23:54:22,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((unsigned long *)arg): "ebx"); [6285-6286] [2023-11-24 23:54:22,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((unsigned long *)arg): "ebx"); [6289-6290] [2023-11-24 23:54:22,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((unsigned long *)arg): "ebx"); [6293-6294] [2023-11-24 23:54:22,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((unsigned long *)arg): "ebx"); [6297-6298] [2023-11-24 23:54:22,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((unsigned long *)arg): "ebx"); [6301-6302] [2023-11-24 23:54:22,521 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_a6c87a79-e739-4c62-8a3b-ffea58ee2c2a/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i[213319,213332] [2023-11-24 23:54:22,545 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:54:22,659 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:54:22,668 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:54:22,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:22 WrapperNode [2023-11-24 23:54:22,669 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:54:22,670 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:54:22,671 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:54:22,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:54:22,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:22" (1/1) ... [2023-11-24 23:54:22,819 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:22" (1/1) ... [2023-11-24 23:54:23,110 INFO L138 Inliner]: procedures = 269, calls = 1626, calls flagged for inlining = 116, calls inlined = 91, statements flattened = 3921 [2023-11-24 23:54:23,111 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:54:23,112 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:54:23,112 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:54:23,112 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:54:23,124 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:22" (1/1) ... [2023-11-24 23:54:23,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:22" (1/1) ... [2023-11-24 23:54:23,169 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:22" (1/1) ... [2023-11-24 23:54:23,169 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:22" (1/1) ... [2023-11-24 23:54:23,307 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:22" (1/1) ... [2023-11-24 23:54:23,347 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:22" (1/1) ... [2023-11-24 23:54:23,386 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:22" (1/1) ... [2023-11-24 23:54:23,411 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:22" (1/1) ... [2023-11-24 23:54:23,451 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:54:23,453 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:54:23,453 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:54:23,455 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:54:23,456 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:22" (1/1) ... [2023-11-24 23:54:23,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:54:23,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c87a79-e739-4c62-8a3b-ffea58ee2c2a/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:54:23,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c87a79-e739-4c62-8a3b-ffea58ee2c2a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:54:23,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6c87a79-e739-4c62-8a3b-ffea58ee2c2a/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:54:23,562 INFO L130 BoogieDeclarations]: Found specification of procedure free_hba [2023-11-24 23:54:23,562 INFO L138 BoogieDeclarations]: Found implementation of procedure free_hba [2023-11-24 23:54:23,562 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_submit_command [2023-11-24 23:54:23,563 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_submit_command [2023-11-24 23:54:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2023-11-24 23:54:23,563 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2023-11-24 23:54:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-24 23:54:23,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-24 23:54:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure cpqarray_remove_one [2023-11-24 23:54:23,564 INFO L138 BoogieDeclarations]: Found implementation of procedure cpqarray_remove_one [2023-11-24 23:54:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_cpqarray_hba [2023-11-24 23:54:23,564 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_cpqarray_hba [2023-11-24 23:54:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_intr_mask [2023-11-24 23:54:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_intr_mask [2023-11-24 23:54:23,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:54:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:54:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2023-11-24 23:54:23,566 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2023-11-24 23:54:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_completed [2023-11-24 23:54:23,566 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_completed [2023-11-24 23:54:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2023-11-24 23:54:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2023-11-24 23:54:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_intr_pending [2023-11-24 23:54:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_intr_pending [2023-11-24 23:54:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_intr_mask [2023-11-24 23:54:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_intr_mask [2023-11-24 23:54:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-11-24 23:54:23,568 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-11-24 23:54:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-24 23:54:23,568 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-24 23:54:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2023-11-24 23:54:23,568 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2023-11-24 23:54:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-24 23:54:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-24 23:54:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-24 23:54:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-24 23:54:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-24 23:54:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-24 23:54:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2023-11-24 23:54:23,572 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2023-11-24 23:54:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-24 23:54:23,572 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-24 23:54:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure start_io [2023-11-24 23:54:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure start_io [2023-11-24 23:54:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cpqarray_mutex [2023-11-24 23:54:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cpqarray_mutex [2023-11-24 23:54:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-24 23:54:23,575 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-24 23:54:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_completed [2023-11-24 23:54:23,575 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_completed [2023-11-24 23:54:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cpqarray_mutex [2023-11-24 23:54:23,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cpqarray_mutex [2023-11-24 23:54:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-24 23:54:23,576 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-24 23:54:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-24 23:54:23,576 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-24 23:54:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-24 23:54:23,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-24 23:54:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure cmd_free [2023-11-24 23:54:23,578 INFO L138 BoogieDeclarations]: Found implementation of procedure cmd_free [2023-11-24 23:54:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2023-11-24 23:54:23,579 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2023-11-24 23:54:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-24 23:54:23,579 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-24 23:54:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_completed [2023-11-24 23:54:23,579 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_completed [2023-11-24 23:54:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-11-24 23:54:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-11-24 23:54:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:54:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-24 23:54:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_fifo_full [2023-11-24 23:54:23,581 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_fifo_full [2023-11-24 23:54:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure release_io_mem [2023-11-24 23:54:23,581 INFO L138 BoogieDeclarations]: Found implementation of procedure release_io_mem [2023-11-24 23:54:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:54:23,581 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-24 23:54:23,581 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-24 23:54:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2023-11-24 23:54:23,582 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2023-11-24 23:54:23,582 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-24 23:54:23,583 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-24 23:54:23,583 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_intr_pending [2023-11-24 23:54:23,583 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_intr_pending [2023-11-24 23:54:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_logical_block_size [2023-11-24 23:54:23,584 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_logical_block_size [2023-11-24 23:54:23,584 INFO L130 BoogieDeclarations]: Found specification of procedure sendcmd [2023-11-24 23:54:23,585 INFO L138 BoogieDeclarations]: Found implementation of procedure sendcmd [2023-11-24 23:54:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-24 23:54:23,585 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-24 23:54:23,585 INFO L130 BoogieDeclarations]: Found specification of procedure get_drv [2023-11-24 23:54:23,586 INFO L138 BoogieDeclarations]: Found implementation of procedure get_drv [2023-11-24 23:54:23,586 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-24 23:54:23,586 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-24 23:54:23,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:54:23,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:54:23,586 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-24 23:54:23,587 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-24 23:54:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-24 23:54:23,587 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-24 23:54:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-24 23:54:23,587 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-24 23:54:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure ida_revalidate [2023-11-24 23:54:23,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_revalidate [2023-11-24 23:54:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-24 23:54:23,589 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-24 23:54:23,589 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-24 23:54:23,589 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-24 23:54:23,589 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_submit_command [2023-11-24 23:54:23,590 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_submit_command [2023-11-24 23:54:23,591 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-24 23:54:23,591 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-24 23:54:23,591 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-24 23:54:23,592 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-24 23:54:23,592 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-24 23:54:23,592 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-24 23:54:23,592 INFO L130 BoogieDeclarations]: Found specification of procedure cpqarray_register_ctlr [2023-11-24 23:54:23,592 INFO L138 BoogieDeclarations]: Found implementation of procedure cpqarray_register_ctlr [2023-11-24 23:54:23,593 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-24 23:54:23,594 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-24 23:54:23,598 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-24 23:54:23,598 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-24 23:54:23,599 INFO L130 BoogieDeclarations]: Found specification of procedure ida_ioctl [2023-11-24 23:54:23,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_ioctl [2023-11-24 23:54:23,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:54:23,600 INFO L130 BoogieDeclarations]: Found specification of procedure cmd_alloc [2023-11-24 23:54:23,601 INFO L138 BoogieDeclarations]: Found implementation of procedure cmd_alloc [2023-11-24 23:54:23,602 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_fifo_full [2023-11-24 23:54:23,602 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_fifo_full [2023-11-24 23:54:23,607 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_intr_pending [2023-11-24 23:54:23,607 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_intr_pending [2023-11-24 23:54:23,607 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-24 23:54:23,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-24 23:54:23,608 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_fifo_full [2023-11-24 23:54:23,608 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_fifo_full [2023-11-24 23:54:23,608 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_submit_command [2023-11-24 23:54:23,608 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_submit_command [2023-11-24 23:54:23,608 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_intr_pending [2023-11-24 23:54:23,608 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_intr_pending [2023-11-24 23:54:23,609 INFO L130 BoogieDeclarations]: Found specification of procedure get_host [2023-11-24 23:54:23,609 INFO L138 BoogieDeclarations]: Found implementation of procedure get_host [2023-11-24 23:54:23,609 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_submit_command [2023-11-24 23:54:23,609 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_submit_command [2023-11-24 23:54:23,609 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-24 23:54:23,609 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-24 23:54:23,610 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2023-11-24 23:54:23,610 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2023-11-24 23:54:23,610 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-24 23:54:23,610 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-24 23:54:23,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:54:23,611 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-24 23:54:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-24 23:54:23,611 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2023-11-24 23:54:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2023-11-24 23:54:23,611 INFO L130 BoogieDeclarations]: Found specification of procedure removeQ [2023-11-24 23:54:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure removeQ [2023-11-24 23:54:23,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-24 23:54:23,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-24 23:54:23,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:54:23,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:54:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-24 23:54:23,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-24 23:54:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:54:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:54:23,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:54:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_intr_mask [2023-11-24 23:54:23,614 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_intr_mask [2023-11-24 23:54:23,614 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-24 23:54:23,614 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-24 23:54:23,614 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-24 23:54:23,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-24 23:54:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2023-11-24 23:54:23,615 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2023-11-24 23:54:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_intr_mask [2023-11-24 23:54:23,615 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_intr_mask [2023-11-24 23:54:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure getgeometry [2023-11-24 23:54:23,615 INFO L138 BoogieDeclarations]: Found implementation of procedure getgeometry [2023-11-24 23:54:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure ida_getgeo [2023-11-24 23:54:23,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_getgeo [2023-11-24 23:54:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-24 23:54:23,616 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-24 23:54:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_fifo_full [2023-11-24 23:54:23,616 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_fifo_full [2023-11-24 23:54:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2023-11-24 23:54:23,617 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2023-11-24 23:54:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-24 23:54:23,617 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-24 23:54:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-24 23:54:23,617 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-24 23:54:23,618 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-24 23:54:23,618 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-24 23:54:23,618 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-24 23:54:23,618 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-24 23:54:23,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:54:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-24 23:54:23,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-24 23:54:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2023-11-24 23:54:23,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2023-11-24 23:54:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_completed [2023-11-24 23:54:23,619 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_completed [2023-11-24 23:54:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:54:23,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:54:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure addQ [2023-11-24 23:54:23,620 INFO L138 BoogieDeclarations]: Found implementation of procedure addQ [2023-11-24 23:54:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-24 23:54:23,620 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-24 23:54:24,406 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:54:24,412 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:54:29,183 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:54:31,223 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:54:31,223 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:54:31,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:54:31 BoogieIcfgContainer [2023-11-24 23:54:31,226 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:54:31,232 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:54:31,232 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:54:31,236 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:54:31,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:54:19" (1/3) ... [2023-11-24 23:54:31,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@429f7ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:54:31, skipping insertion in model container [2023-11-24 23:54:31,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:54:22" (2/3) ... [2023-11-24 23:54:31,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@429f7ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:54:31, skipping insertion in model container [2023-11-24 23:54:31,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:54:31" (3/3) ... [2023-11-24 23:54:31,243 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2023-11-24 23:54:31,270 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:54:31,270 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:54:31,366 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:54:31,374 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;@16ed90c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:54:31,374 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:54:31,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 1097 states, 677 states have (on average 1.341211225997046) internal successors, (908), 704 states have internal predecessors, (908), 322 states have call successors, (322), 96 states have call predecessors, (322), 96 states have return successors, (322), 316 states have call predecessors, (322), 322 states have call successors, (322) [2023-11-24 23:54:31,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 23:54:31,400 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:54:31,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:54:31,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:54:31,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:54:31,408 INFO L85 PathProgramCache]: Analyzing trace with hash 846803737, now seen corresponding path program 1 times [2023-11-24 23:54:31,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:54:31,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281447031] [2023-11-24 23:54:31,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:54:31,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:54:31,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:54:32,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:54:32,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:54:32,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281447031] [2023-11-24 23:54:32,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281447031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:54:32,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:54:32,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:54:32,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257611739] [2023-11-24 23:54:32,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:54:32,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:54:32,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:54:32,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:54:32,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:54:32,234 INFO L87 Difference]: Start difference. First operand has 1097 states, 677 states have (on average 1.341211225997046) internal successors, (908), 704 states have internal predecessors, (908), 322 states have call successors, (322), 96 states have call predecessors, (322), 96 states have return successors, (322), 316 states have call predecessors, (322), 322 states have call successors, (322) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:54:35,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:54:38,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:54:38,613 INFO L93 Difference]: Finished difference Result 3004 states and 4252 transitions. [2023-11-24 23:54:38,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:54:38,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-24 23:54:38,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:54:38,683 INFO L225 Difference]: With dead ends: 3004 [2023-11-24 23:54:38,683 INFO L226 Difference]: Without dead ends: 1898 [2023-11-24 23:54:38,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:54:38,709 INFO L413 NwaCegarLoop]: 1362 mSDtfsCounter, 1131 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:54:38,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1131 Valid, 2698 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-11-24 23:54:38,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2023-11-24 23:54:38,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1884. [2023-11-24 23:54:38,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1884 states, 1164 states have (on average 1.3367697594501717) internal successors, (1556), 1207 states have internal predecessors, (1556), 549 states have call successors, (549), 171 states have call predecessors, (549), 170 states have return successors, (543), 529 states have call predecessors, (543), 543 states have call successors, (543) [2023-11-24 23:54:38,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 2648 transitions. [2023-11-24 23:54:38,998 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 2648 transitions. Word has length 12 [2023-11-24 23:54:38,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:54:39,003 INFO L495 AbstractCegarLoop]: Abstraction has 1884 states and 2648 transitions. [2023-11-24 23:54:39,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:54:39,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 2648 transitions. [2023-11-24 23:54:39,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:54:39,018 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:54:39,018 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:54:39,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:54:39,019 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:54:39,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:54:39,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1581025587, now seen corresponding path program 1 times [2023-11-24 23:54:39,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:54:39,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104733612] [2023-11-24 23:54:39,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:54:39,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:54:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:54:39,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:54:39,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:54:39,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104733612] [2023-11-24 23:54:39,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104733612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:54:39,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:54:39,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:54:39,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770007310] [2023-11-24 23:54:39,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:54:39,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:54:39,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:54:39,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:54:39,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:54:39,501 INFO L87 Difference]: Start difference. First operand 1884 states and 2648 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-24 23:54:43,711 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 [] [2023-11-24 23:54:44,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:54:46,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:54:46,894 INFO L93 Difference]: Finished difference Result 5049 states and 7020 transitions. [2023-11-24 23:54:46,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:54:46,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2023-11-24 23:54:46,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:54:46,934 INFO L225 Difference]: With dead ends: 5049 [2023-11-24 23:54:46,934 INFO L226 Difference]: Without dead ends: 3166 [2023-11-24 23:54:46,946 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 [2023-11-24 23:54:46,948 INFO L413 NwaCegarLoop]: 1580 mSDtfsCounter, 1078 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:54:46,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1078 Valid, 2875 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 404 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2023-11-24 23:54:46,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3166 states. [2023-11-24 23:54:47,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3166 to 3160. [2023-11-24 23:54:47,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 1932 states have (on average 1.315734989648033) internal successors, (2542), 2001 states have internal predecessors, (2542), 913 states have call successors, (913), 315 states have call predecessors, (913), 314 states have return successors, (907), 882 states have call predecessors, (907), 907 states have call successors, (907) [2023-11-24 23:54:47,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4362 transitions. [2023-11-24 23:54:47,210 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4362 transitions. Word has length 25 [2023-11-24 23:54:47,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:54:47,211 INFO L495 AbstractCegarLoop]: Abstraction has 3160 states and 4362 transitions. [2023-11-24 23:54:47,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-24 23:54:47,211 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4362 transitions. [2023-11-24 23:54:47,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-24 23:54:47,216 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:54:47,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:54:47,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:54:47,217 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:54:47,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:54:47,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1637437350, now seen corresponding path program 1 times [2023-11-24 23:54:47,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:54:47,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492695314] [2023-11-24 23:54:47,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:54:47,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:54:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:54:47,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:54:47,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:54:47,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492695314] [2023-11-24 23:54:47,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492695314] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:54:47,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:54:47,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:54:47,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331816259] [2023-11-24 23:54:47,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:54:47,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:54:47,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:54:47,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:54:47,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:54:47,541 INFO L87 Difference]: Start difference. First operand 3160 states and 4362 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-24 23:54:49,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:54:53,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:54:53,068 INFO L93 Difference]: Finished difference Result 3580 states and 4887 transitions. [2023-11-24 23:54:53,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:54:53,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2023-11-24 23:54:53,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:54:53,101 INFO L225 Difference]: With dead ends: 3580 [2023-11-24 23:54:53,101 INFO L226 Difference]: Without dead ends: 3576 [2023-11-24 23:54:53,105 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 [2023-11-24 23:54:53,106 INFO L413 NwaCegarLoop]: 1444 mSDtfsCounter, 1178 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 2189 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-24 23:54:53,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 2189 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-24 23:54:53,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3576 states. [2023-11-24 23:54:53,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3576 to 3574. [2023-11-24 23:54:53,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3574 states, 2169 states have (on average 1.3033656062701706) internal successors, (2827), 2246 states have internal predecessors, (2827), 1029 states have call successors, (1029), 376 states have call predecessors, (1029), 375 states have return successors, (1025), 994 states have call predecessors, (1025), 1025 states have call successors, (1025) [2023-11-24 23:54:53,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3574 states to 3574 states and 4881 transitions. [2023-11-24 23:54:53,328 INFO L78 Accepts]: Start accepts. Automaton has 3574 states and 4881 transitions. Word has length 24 [2023-11-24 23:54:53,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:54:53,328 INFO L495 AbstractCegarLoop]: Abstraction has 3574 states and 4881 transitions. [2023-11-24 23:54:53,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-24 23:54:53,329 INFO L276 IsEmpty]: Start isEmpty. Operand 3574 states and 4881 transitions. [2023-11-24 23:54:53,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:54:53,331 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:54:53,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:54:53,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:54:53,332 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:54:53,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:54:53,332 INFO L85 PathProgramCache]: Analyzing trace with hash -779660721, now seen corresponding path program 1 times [2023-11-24 23:54:53,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:54:53,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145107430] [2023-11-24 23:54:53,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:54:53,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:54:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:54:53,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:54:53,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:54:53,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145107430] [2023-11-24 23:54:53,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145107430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:54:53,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:54:53,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:54:53,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112422812] [2023-11-24 23:54:53,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:54:53,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:54:53,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:54:53,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:54:53,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:54:53,571 INFO L87 Difference]: Start difference. First operand 3574 states and 4881 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-24 23:54:55,869 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 [] [2023-11-24 23:54:57,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:54:57,843 INFO L93 Difference]: Finished difference Result 3576 states and 4882 transitions. [2023-11-24 23:54:57,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:54:57,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2023-11-24 23:54:57,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:54:57,875 INFO L225 Difference]: With dead ends: 3576 [2023-11-24 23:54:57,876 INFO L226 Difference]: Without dead ends: 3573 [2023-11-24 23:54:57,879 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 [2023-11-24 23:54:57,881 INFO L413 NwaCegarLoop]: 1346 mSDtfsCounter, 1511 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:54:57,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1346 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2023-11-24 23:54:57,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3573 states. [2023-11-24 23:54:58,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3573 to 3573. [2023-11-24 23:54:58,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3573 states, 2169 states have (on average 1.3029045643153527) internal successors, (2826), 2245 states have internal predecessors, (2826), 1028 states have call successors, (1028), 376 states have call predecessors, (1028), 375 states have return successors, (1025), 994 states have call predecessors, (1025), 1025 states have call successors, (1025) [2023-11-24 23:54:58,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3573 states to 3573 states and 4879 transitions. [2023-11-24 23:54:58,231 INFO L78 Accepts]: Start accepts. Automaton has 3573 states and 4879 transitions. Word has length 25 [2023-11-24 23:54:58,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:54:58,232 INFO L495 AbstractCegarLoop]: Abstraction has 3573 states and 4879 transitions. [2023-11-24 23:54:58,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-24 23:54:58,232 INFO L276 IsEmpty]: Start isEmpty. Operand 3573 states and 4879 transitions. [2023-11-24 23:54:58,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-24 23:54:58,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:54:58,235 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:54:58,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:54:58,236 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:54:58,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:54:58,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1599715273, now seen corresponding path program 1 times [2023-11-24 23:54:58,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:54:58,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083594970] [2023-11-24 23:54:58,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:54:58,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:54:58,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:54:58,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:54:58,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:54:58,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083594970] [2023-11-24 23:54:58,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083594970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:54:58,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:54:58,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:54:58,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827208763] [2023-11-24 23:54:58,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:54:58,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:54:58,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:54:58,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:54:58,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:54:58,477 INFO L87 Difference]: Start difference. First operand 3573 states and 4879 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-24 23:55:00,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:55:01,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:55:01,893 INFO L93 Difference]: Finished difference Result 3575 states and 4880 transitions. [2023-11-24 23:55:01,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:55:01,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2023-11-24 23:55:01,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:55:01,923 INFO L225 Difference]: With dead ends: 3575 [2023-11-24 23:55:01,923 INFO L226 Difference]: Without dead ends: 3572 [2023-11-24 23:55:01,926 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 [2023-11-24 23:55:01,927 INFO L413 NwaCegarLoop]: 1344 mSDtfsCounter, 1508 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:55:01,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1508 Valid, 1344 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-24 23:55:01,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3572 states. [2023-11-24 23:55:02,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3572 to 3572. [2023-11-24 23:55:02,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3572 states, 2169 states have (on average 1.3024435223605348) internal successors, (2825), 2244 states have internal predecessors, (2825), 1027 states have call successors, (1027), 376 states have call predecessors, (1027), 375 states have return successors, (1025), 994 states have call predecessors, (1025), 1025 states have call successors, (1025) [2023-11-24 23:55:02,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3572 states to 3572 states and 4877 transitions. [2023-11-24 23:55:02,230 INFO L78 Accepts]: Start accepts. Automaton has 3572 states and 4877 transitions. Word has length 26 [2023-11-24 23:55:02,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:55:02,230 INFO L495 AbstractCegarLoop]: Abstraction has 3572 states and 4877 transitions. [2023-11-24 23:55:02,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-24 23:55:02,231 INFO L276 IsEmpty]: Start isEmpty. Operand 3572 states and 4877 transitions. [2023-11-24 23:55:02,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-24 23:55:02,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:02,234 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:55:02,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 23:55:02,234 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:55:02,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:02,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1949035374, now seen corresponding path program 1 times [2023-11-24 23:55:02,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:02,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876543077] [2023-11-24 23:55:02,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:02,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:02,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:55:02,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:02,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876543077] [2023-11-24 23:55:02,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876543077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:02,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:02,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:55:02,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009051921] [2023-11-24 23:55:02,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:02,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:55:02,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:02,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:55:02,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:02,408 INFO L87 Difference]: Start difference. First operand 3572 states and 4877 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-24 23:55:04,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:55:04,424 INFO L93 Difference]: Finished difference Result 3574 states and 4878 transitions. [2023-11-24 23:55:04,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:55:04,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2023-11-24 23:55:04,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:55:04,452 INFO L225 Difference]: With dead ends: 3574 [2023-11-24 23:55:04,452 INFO L226 Difference]: Without dead ends: 3535 [2023-11-24 23:55:04,456 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 [2023-11-24 23:55:04,457 INFO L413 NwaCegarLoop]: 1343 mSDtfsCounter, 1505 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:55:04,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1343 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-24 23:55:04,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3535 states. [2023-11-24 23:55:04,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3535 to 3535. [2023-11-24 23:55:04,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3535 states, 2145 states have (on average 1.3016317016317016) internal successors, (2792), 2216 states have internal predecessors, (2792), 1016 states have call successors, (1016), 374 states have call predecessors, (1016), 373 states have return successors, (1015), 985 states have call predecessors, (1015), 1015 states have call successors, (1015) [2023-11-24 23:55:04,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3535 states to 3535 states and 4823 transitions. [2023-11-24 23:55:04,751 INFO L78 Accepts]: Start accepts. Automaton has 3535 states and 4823 transitions. Word has length 27 [2023-11-24 23:55:04,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:55:04,752 INFO L495 AbstractCegarLoop]: Abstraction has 3535 states and 4823 transitions. [2023-11-24 23:55:04,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-24 23:55:04,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3535 states and 4823 transitions. [2023-11-24 23:55:04,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-24 23:55:04,758 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:04,759 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:55:04,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 23:55:04,759 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:55:04,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:04,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1220668135, now seen corresponding path program 1 times [2023-11-24 23:55:04,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:04,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521925006] [2023-11-24 23:55:04,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:04,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:05,225 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:55:05,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:05,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521925006] [2023-11-24 23:55:05,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521925006] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:05,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:05,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:55:05,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204855575] [2023-11-24 23:55:05,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:05,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:55:05,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:05,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:55:05,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:55:05,229 INFO L87 Difference]: Start difference. First operand 3535 states and 4823 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)