./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 9bd2c7ff 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_31a383e8-7824-4a2a-b101-51aab17d0ec4/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a383e8-7824-4a2a-b101-51aab17d0ec4/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a383e8-7824-4a2a-b101-51aab17d0ec4/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a383e8-7824-4a2a-b101-51aab17d0ec4/bin/utaipan-verify-t7M7D8N6sZ/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_31a383e8-7824-4a2a-b101-51aab17d0ec4/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a383e8-7824-4a2a-b101-51aab17d0ec4/bin/utaipan-verify-t7M7D8N6sZ --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 0.2.3-dev-9bd2c7f [2023-11-19 05:18:54,662 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:18:54,776 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a383e8-7824-4a2a-b101-51aab17d0ec4/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:18:54,783 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:18:54,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:18:54,823 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:18:54,823 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:18:54,824 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:18:54,825 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:18:54,830 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:18:54,830 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:18:54,831 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:18:54,832 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:18:54,834 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:18:54,834 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:18:54,834 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:18:54,835 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:18:54,835 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:18:54,836 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:18:54,836 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:18:54,837 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:18:54,837 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:18:54,838 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:18:54,839 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:18:54,839 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:18:54,840 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:18:54,840 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:18:54,841 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:18:54,841 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:18:54,841 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:18:54,843 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:18:54,843 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:18:54,843 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:18:54,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:18:54,844 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:18:54,844 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:18:54,844 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:18:54,845 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:18:54,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:18:54,845 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:18:54,845 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:18:54,846 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:18:54,846 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_31a383e8-7824-4a2a-b101-51aab17d0ec4/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a383e8-7824-4a2a-b101-51aab17d0ec4/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f37e3824e515882c7bcf8c367d3f56b0297fad2493f001664c6f9188e65f0eab [2023-11-19 05:18:55,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:18:55,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:18:55,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:18:55,109 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:18:55,109 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:18:55,111 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a383e8-7824-4a2a-b101-51aab17d0ec4/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2023-11-19 05:18:58,242 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:18:58,797 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:18:58,798 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a383e8-7824-4a2a-b101-51aab17d0ec4/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2023-11-19 05:18:58,850 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a383e8-7824-4a2a-b101-51aab17d0ec4/bin/utaipan-verify-t7M7D8N6sZ/data/1cea42fb8/a48dd11b1f0b4c86b05683ae24635f9f/FLAGe934d455e [2023-11-19 05:18:58,867 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a383e8-7824-4a2a-b101-51aab17d0ec4/bin/utaipan-verify-t7M7D8N6sZ/data/1cea42fb8/a48dd11b1f0b4c86b05683ae24635f9f [2023-11-19 05:18:58,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:18:58,875 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:18:58,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:18:58,878 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:18:58,883 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:18:58,884 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:18:58" (1/1) ... [2023-11-19 05:18:58,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@301376cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:58, skipping insertion in model container [2023-11-19 05:18:58,885 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:18:58" (1/1) ... [2023-11-19 05:18:59,041 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:19:00,917 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_31a383e8-7824-4a2a-b101-51aab17d0ec4/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i[213319,213332] [2023-11-19 05:19:01,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:19:01,080 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:19:01,230 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] [2023-11-19 05:19:01,232 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] [2023-11-19 05:19:01,234 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] [2023-11-19 05:19:01,235 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] [2023-11-19 05:19:01,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [4204] [2023-11-19 05:19:01,239 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [4211] [2023-11-19 05:19:01,240 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [4233] [2023-11-19 05:19:01,241 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [4240] [2023-11-19 05:19:01,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [4247] [2023-11-19 05:19:01,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [4254] [2023-11-19 05:19:01,244 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [4261] [2023-11-19 05:19:01,268 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] [2023-11-19 05:19:01,270 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] [2023-11-19 05:19:01,275 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] [2023-11-19 05:19:01,277 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] [2023-11-19 05:19:01,281 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] [2023-11-19 05:19:01,284 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] [2023-11-19 05:19:01,417 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] [2023-11-19 05:19:01,453 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] [2023-11-19 05:19:01,453 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] [2023-11-19 05:19:01,453 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] [2023-11-19 05:19:01,454 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] [2023-11-19 05:19:01,454 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] [2023-11-19 05:19:01,455 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] [2023-11-19 05:19:01,455 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] [2023-11-19 05:19:01,456 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] [2023-11-19 05:19:01,456 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] [2023-11-19 05:19:01,456 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] [2023-11-19 05:19:01,574 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_31a383e8-7824-4a2a-b101-51aab17d0ec4/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i[213319,213332] [2023-11-19 05:19:01,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:19:01,653 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:19:01,661 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:19:01,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:01 WrapperNode [2023-11-19 05:19:01,662 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:19:01,663 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:19:01,663 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:19:01,663 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:19:01,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:01" (1/1) ... [2023-11-19 05:19:01,782 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:01" (1/1) ... [2023-11-19 05:19:01,945 INFO L138 Inliner]: procedures = 269, calls = 1626, calls flagged for inlining = 116, calls inlined = 91, statements flattened = 3847 [2023-11-19 05:19:01,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:19:01,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:19:01,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:19:01,947 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:19:01,956 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:01" (1/1) ... [2023-11-19 05:19:01,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:01" (1/1) ... [2023-11-19 05:19:01,974 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:01" (1/1) ... [2023-11-19 05:19:01,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:01" (1/1) ... [2023-11-19 05:19:02,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:01" (1/1) ... [2023-11-19 05:19:02,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:01" (1/1) ... [2023-11-19 05:19:02,196 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:01" (1/1) ... [2023-11-19 05:19:02,216 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:01" (1/1) ... [2023-11-19 05:19:02,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:19:02,251 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:19:02,251 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:19:02,252 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:19:02,253 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:01" (1/1) ... [2023-11-19 05:19:02,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:19:02,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a383e8-7824-4a2a-b101-51aab17d0ec4/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:19:02,289 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a383e8-7824-4a2a-b101-51aab17d0ec4/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:19:02,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a383e8-7824-4a2a-b101-51aab17d0ec4/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:19:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure free_hba [2023-11-19 05:19:02,335 INFO L138 BoogieDeclarations]: Found implementation of procedure free_hba [2023-11-19 05:19:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_submit_command [2023-11-19 05:19:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_submit_command [2023-11-19 05:19:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2023-11-19 05:19:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2023-11-19 05:19:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-19 05:19:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-19 05:19:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure cpqarray_remove_one [2023-11-19 05:19:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure cpqarray_remove_one [2023-11-19 05:19:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_cpqarray_hba [2023-11-19 05:19:02,339 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_cpqarray_hba [2023-11-19 05:19:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_intr_mask [2023-11-19 05:19:02,339 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_intr_mask [2023-11-19 05:19:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:19:02,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:19:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2023-11-19 05:19:02,340 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2023-11-19 05:19:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_completed [2023-11-19 05:19:02,340 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_completed [2023-11-19 05:19:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2023-11-19 05:19:02,340 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2023-11-19 05:19:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_intr_pending [2023-11-19 05:19:02,341 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_intr_pending [2023-11-19 05:19:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_intr_mask [2023-11-19 05:19:02,341 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_intr_mask [2023-11-19 05:19:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-11-19 05:19:02,341 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-11-19 05:19:02,342 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 05:19:02,342 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 05:19:02,342 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2023-11-19 05:19:02,342 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2023-11-19 05:19:02,342 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 05:19:02,342 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 05:19:02,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 05:19:02,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 05:19:02,344 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 05:19:02,345 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 05:19:02,345 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2023-11-19 05:19:02,345 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2023-11-19 05:19:02,345 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 05:19:02,345 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 05:19:02,345 INFO L130 BoogieDeclarations]: Found specification of procedure start_io [2023-11-19 05:19:02,346 INFO L138 BoogieDeclarations]: Found implementation of procedure start_io [2023-11-19 05:19:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cpqarray_mutex [2023-11-19 05:19:02,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cpqarray_mutex [2023-11-19 05:19:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 05:19:02,347 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 05:19:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_completed [2023-11-19 05:19:02,347 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_completed [2023-11-19 05:19:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cpqarray_mutex [2023-11-19 05:19:02,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cpqarray_mutex [2023-11-19 05:19:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-19 05:19:02,348 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-19 05:19:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 05:19:02,348 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 05:19:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-19 05:19:02,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-19 05:19:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure cmd_free [2023-11-19 05:19:02,350 INFO L138 BoogieDeclarations]: Found implementation of procedure cmd_free [2023-11-19 05:19:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2023-11-19 05:19:02,350 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2023-11-19 05:19:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 05:19:02,350 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 05:19:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_completed [2023-11-19 05:19:02,351 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_completed [2023-11-19 05:19:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-11-19 05:19:02,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-11-19 05:19:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:19:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 05:19:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_fifo_full [2023-11-19 05:19:02,352 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_fifo_full [2023-11-19 05:19:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure release_io_mem [2023-11-19 05:19:02,352 INFO L138 BoogieDeclarations]: Found implementation of procedure release_io_mem [2023-11-19 05:19:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:19:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-19 05:19:02,353 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-19 05:19:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2023-11-19 05:19:02,353 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2023-11-19 05:19:02,353 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-19 05:19:02,353 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-19 05:19:02,354 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_intr_pending [2023-11-19 05:19:02,354 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_intr_pending [2023-11-19 05:19:02,354 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_logical_block_size [2023-11-19 05:19:02,354 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_logical_block_size [2023-11-19 05:19:02,355 INFO L130 BoogieDeclarations]: Found specification of procedure sendcmd [2023-11-19 05:19:02,355 INFO L138 BoogieDeclarations]: Found implementation of procedure sendcmd [2023-11-19 05:19:02,355 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 05:19:02,355 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 05:19:02,356 INFO L130 BoogieDeclarations]: Found specification of procedure get_drv [2023-11-19 05:19:02,356 INFO L138 BoogieDeclarations]: Found implementation of procedure get_drv [2023-11-19 05:19:02,356 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 05:19:02,357 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 05:19:02,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:19:02,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:19:02,357 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 05:19:02,358 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 05:19:02,358 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:19:02,358 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:19:02,358 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-19 05:19:02,358 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-19 05:19:02,359 INFO L130 BoogieDeclarations]: Found specification of procedure ida_revalidate [2023-11-19 05:19:02,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_revalidate [2023-11-19 05:19:02,359 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 05:19:02,359 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 05:19:02,359 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 05:19:02,360 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 05:19:02,360 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_submit_command [2023-11-19 05:19:02,360 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_submit_command [2023-11-19 05:19:02,360 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-19 05:19:02,361 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-19 05:19:02,361 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-19 05:19:02,362 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-19 05:19:02,362 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-19 05:19:02,362 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-19 05:19:02,362 INFO L130 BoogieDeclarations]: Found specification of procedure cpqarray_register_ctlr [2023-11-19 05:19:02,363 INFO L138 BoogieDeclarations]: Found implementation of procedure cpqarray_register_ctlr [2023-11-19 05:19:02,363 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-19 05:19:02,363 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-19 05:19:02,364 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 05:19:02,364 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 05:19:02,367 INFO L130 BoogieDeclarations]: Found specification of procedure ida_ioctl [2023-11-19 05:19:02,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_ioctl [2023-11-19 05:19:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:19:02,368 INFO L130 BoogieDeclarations]: Found specification of procedure cmd_alloc [2023-11-19 05:19:02,369 INFO L138 BoogieDeclarations]: Found implementation of procedure cmd_alloc [2023-11-19 05:19:02,369 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_fifo_full [2023-11-19 05:19:02,370 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_fifo_full [2023-11-19 05:19:02,370 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_intr_pending [2023-11-19 05:19:02,371 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_intr_pending [2023-11-19 05:19:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 05:19:02,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 05:19:02,377 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_fifo_full [2023-11-19 05:19:02,377 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_fifo_full [2023-11-19 05:19:02,378 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_submit_command [2023-11-19 05:19:02,378 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_submit_command [2023-11-19 05:19:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_intr_pending [2023-11-19 05:19:02,379 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_intr_pending [2023-11-19 05:19:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure get_host [2023-11-19 05:19:02,379 INFO L138 BoogieDeclarations]: Found implementation of procedure get_host [2023-11-19 05:19:02,379 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_submit_command [2023-11-19 05:19:02,379 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_submit_command [2023-11-19 05:19:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 05:19:02,380 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 05:19:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2023-11-19 05:19:02,380 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2023-11-19 05:19:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 05:19:02,380 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 05:19:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:19:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-19 05:19:02,381 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-19 05:19:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2023-11-19 05:19:02,381 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2023-11-19 05:19:02,381 INFO L130 BoogieDeclarations]: Found specification of procedure removeQ [2023-11-19 05:19:02,382 INFO L138 BoogieDeclarations]: Found implementation of procedure removeQ [2023-11-19 05:19:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:19:02,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:19:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:19:02,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:19:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 05:19:02,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 05:19:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:19:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 05:19:02,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 05:19:02,383 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_intr_mask [2023-11-19 05:19:02,383 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_intr_mask [2023-11-19 05:19:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-19 05:19:02,384 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-19 05:19:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-19 05:19:02,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-19 05:19:02,384 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2023-11-19 05:19:02,384 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2023-11-19 05:19:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_intr_mask [2023-11-19 05:19:02,385 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_intr_mask [2023-11-19 05:19:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure getgeometry [2023-11-19 05:19:02,385 INFO L138 BoogieDeclarations]: Found implementation of procedure getgeometry [2023-11-19 05:19:02,385 INFO L130 BoogieDeclarations]: Found specification of procedure ida_getgeo [2023-11-19 05:19:02,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_getgeo [2023-11-19 05:19:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-19 05:19:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-19 05:19:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_fifo_full [2023-11-19 05:19:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_fifo_full [2023-11-19 05:19:02,386 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2023-11-19 05:19:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2023-11-19 05:19:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-19 05:19:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-19 05:19:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-19 05:19:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-19 05:19:02,387 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-19 05:19:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-19 05:19:02,388 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-19 05:19:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-19 05:19:02,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:19:02,388 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-19 05:19:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-19 05:19:02,388 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2023-11-19 05:19:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2023-11-19 05:19:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_completed [2023-11-19 05:19:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_completed [2023-11-19 05:19:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:19:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:19:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure addQ [2023-11-19 05:19:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure addQ [2023-11-19 05:19:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 05:19:02,390 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 05:19:03,131 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:19:03,136 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:19:09,393 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:19:11,247 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:19:11,247 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:19:11,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:19:11 BoogieIcfgContainer [2023-11-19 05:19:11,260 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:19:11,263 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:19:11,263 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:19:11,266 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:19:11,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:18:58" (1/3) ... [2023-11-19 05:19:11,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489021fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:19:11, skipping insertion in model container [2023-11-19 05:19:11,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:01" (2/3) ... [2023-11-19 05:19:11,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489021fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:19:11, skipping insertion in model container [2023-11-19 05:19:11,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:19:11" (3/3) ... [2023-11-19 05:19:11,269 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2023-11-19 05:19:11,288 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:19:11,288 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:19:11,393 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:19:11,401 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;@6ce40b96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:19:11,402 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:19:11,414 INFO L276 IsEmpty]: Start isEmpty. Operand has 1095 states, 675 states have (on average 1.3422222222222222) internal successors, (906), 702 states have internal predecessors, (906), 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) [2023-11-19 05:19:11,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 05:19:11,426 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:11,426 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:19:11,427 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:11,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:11,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1376318363, now seen corresponding path program 1 times [2023-11-19 05:19:11,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:19:11,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795467527] [2023-11-19 05:19:11,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:11,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:19:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:12,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:19:12,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:19:12,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795467527] [2023-11-19 05:19:12,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795467527] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:12,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:12,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:19:12,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901664646] [2023-11-19 05:19:12,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:12,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:19:12,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:19:12,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:19:12,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:19:12,166 INFO L87 Difference]: Start difference. First operand has 1095 states, 675 states have (on average 1.3422222222222222) internal successors, (906), 702 states have internal predecessors, (906), 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) [2023-11-19 05:19:14,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:19:16,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:19:18,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:19:21,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:21,484 INFO L93 Difference]: Finished difference Result 2998 states and 4246 transitions. [2023-11-19 05:19:21,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:19:21,488 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 [2023-11-19 05:19:21,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:21,539 INFO L225 Difference]: With dead ends: 2998 [2023-11-19 05:19:21,539 INFO L226 Difference]: Without dead ends: 1894 [2023-11-19 05:19:21,554 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 [2023-11-19 05:19:21,557 INFO L413 NwaCegarLoop]: 1363 mSDtfsCounter, 1129 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:21,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 2700 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 390 Invalid, 2 Unknown, 0 Unchecked, 9.0s Time] [2023-11-19 05:19:21,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states. [2023-11-19 05:19:21,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1880. [2023-11-19 05:19:21,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1880 states, 1160 states have (on average 1.3379310344827586) internal successors, (1552), 1203 states have internal predecessors, (1552), 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) [2023-11-19 05:19:21,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1880 states to 1880 states and 2644 transitions. [2023-11-19 05:19:21,862 INFO L78 Accepts]: Start accepts. Automaton has 1880 states and 2644 transitions. Word has length 12 [2023-11-19 05:19:21,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:21,863 INFO L495 AbstractCegarLoop]: Abstraction has 1880 states and 2644 transitions. [2023-11-19 05:19:21,863 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) [2023-11-19 05:19:21,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1880 states and 2644 transitions. [2023-11-19 05:19:21,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 05:19:21,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:21,876 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] [2023-11-19 05:19:21,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:19:21,876 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:21,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:21,877 INFO L85 PathProgramCache]: Analyzing trace with hash -529690637, now seen corresponding path program 1 times [2023-11-19 05:19:21,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:19:21,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762413569] [2023-11-19 05:19:21,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:21,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:19:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:22,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:19:22,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:19:22,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762413569] [2023-11-19 05:19:22,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762413569] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:22,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:22,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:19:22,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179597541] [2023-11-19 05:19:22,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:22,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:19:22,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:19:22,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:19:22,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:19:22,233 INFO L87 Difference]: Start difference. First operand 1880 states and 2644 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) [2023-11-19 05:19:25,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:19:27,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:19:28,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:28,206 INFO L93 Difference]: Finished difference Result 2299 states and 3168 transitions. [2023-11-19 05:19:28,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:19:28,212 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 [2023-11-19 05:19:28,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:28,235 INFO L225 Difference]: With dead ends: 2299 [2023-11-19 05:19:28,236 INFO L226 Difference]: Without dead ends: 2295 [2023-11-19 05:19:28,238 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 [2023-11-19 05:19:28,240 INFO L413 NwaCegarLoop]: 1443 mSDtfsCounter, 1176 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:28,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 2187 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-19 05:19:28,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2023-11-19 05:19:28,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 2293. [2023-11-19 05:19:28,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2293 states, 1396 states have (on average 1.3151862464183381) internal successors, (1836), 1447 states have internal predecessors, (1836), 665 states have call successors, (665), 232 states have call predecessors, (665), 231 states have return successors, (661), 641 states have call predecessors, (661), 661 states have call successors, (661) [2023-11-19 05:19:28,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2293 states to 2293 states and 3162 transitions. [2023-11-19 05:19:28,507 INFO L78 Accepts]: Start accepts. Automaton has 2293 states and 3162 transitions. Word has length 24 [2023-11-19 05:19:28,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:28,508 INFO L495 AbstractCegarLoop]: Abstraction has 2293 states and 3162 transitions. [2023-11-19 05:19:28,508 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) [2023-11-19 05:19:28,509 INFO L276 IsEmpty]: Start isEmpty. Operand 2293 states and 3162 transitions. [2023-11-19 05:19:28,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 05:19:28,512 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:28,512 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] [2023-11-19 05:19:28,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:19:28,513 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:28,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:28,513 INFO L85 PathProgramCache]: Analyzing trace with hash 758848293, now seen corresponding path program 1 times [2023-11-19 05:19:28,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:19:28,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827149533] [2023-11-19 05:19:28,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:28,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:19:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:28,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:19:28,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:19:28,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827149533] [2023-11-19 05:19:28,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827149533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:28,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:28,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:19:28,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019600502] [2023-11-19 05:19:28,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:28,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:19:28,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:19:28,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:19:28,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:19:28,805 INFO L87 Difference]: Start difference. First operand 2293 states and 3162 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) [2023-11-19 05:19:30,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:30,509 INFO L93 Difference]: Finished difference Result 2295 states and 3163 transitions. [2023-11-19 05:19:30,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:19:30,512 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 [2023-11-19 05:19:30,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:30,528 INFO L225 Difference]: With dead ends: 2295 [2023-11-19 05:19:30,529 INFO L226 Difference]: Without dead ends: 2292 [2023-11-19 05:19:30,531 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 [2023-11-19 05:19:30,532 INFO L413 NwaCegarLoop]: 1347 mSDtfsCounter, 1509 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:30,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1347 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-19 05:19:30,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2023-11-19 05:19:30,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2292. [2023-11-19 05:19:30,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2292 states, 1396 states have (on average 1.3144699140401146) internal successors, (1835), 1446 states have internal predecessors, (1835), 664 states have call successors, (664), 232 states have call predecessors, (664), 231 states have return successors, (661), 641 states have call predecessors, (661), 661 states have call successors, (661) [2023-11-19 05:19:30,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 3160 transitions. [2023-11-19 05:19:30,686 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 3160 transitions. Word has length 25 [2023-11-19 05:19:30,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:30,687 INFO L495 AbstractCegarLoop]: Abstraction has 2292 states and 3160 transitions. [2023-11-19 05:19:30,687 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) [2023-11-19 05:19:30,687 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 3160 transitions. [2023-11-19 05:19:30,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 05:19:30,689 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:30,689 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] [2023-11-19 05:19:30,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:19:30,690 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:30,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:30,690 INFO L85 PathProgramCache]: Analyzing trace with hash 2048854326, now seen corresponding path program 1 times [2023-11-19 05:19:30,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:19:30,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720150764] [2023-11-19 05:19:30,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:30,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:19:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:30,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:19:30,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:19:30,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720150764] [2023-11-19 05:19:30,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720150764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:30,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:30,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:19:30,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151692179] [2023-11-19 05:19:30,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:30,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:19:30,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:19:30,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:19:30,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:19:30,929 INFO L87 Difference]: Start difference. First operand 2292 states and 3160 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) [2023-11-19 05:19:32,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:32,886 INFO L93 Difference]: Finished difference Result 2294 states and 3161 transitions. [2023-11-19 05:19:32,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:19:32,888 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 [2023-11-19 05:19:32,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:32,903 INFO L225 Difference]: With dead ends: 2294 [2023-11-19 05:19:32,903 INFO L226 Difference]: Without dead ends: 2291 [2023-11-19 05:19:32,905 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 [2023-11-19 05:19:32,906 INFO L413 NwaCegarLoop]: 1345 mSDtfsCounter, 1506 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:32,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1345 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-19 05:19:32,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2023-11-19 05:19:33,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2291. [2023-11-19 05:19:33,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2291 states, 1396 states have (on average 1.313753581661891) internal successors, (1834), 1445 states have internal predecessors, (1834), 663 states have call successors, (663), 232 states have call predecessors, (663), 231 states have return successors, (661), 641 states have call predecessors, (661), 661 states have call successors, (661) [2023-11-19 05:19:33,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 3158 transitions. [2023-11-19 05:19:33,060 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 3158 transitions. Word has length 26 [2023-11-19 05:19:33,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:33,061 INFO L495 AbstractCegarLoop]: Abstraction has 2291 states and 3158 transitions. [2023-11-19 05:19:33,061 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) [2023-11-19 05:19:33,061 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 3158 transitions. [2023-11-19 05:19:33,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 05:19:33,063 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:33,063 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] [2023-11-19 05:19:33,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 05:19:33,064 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:33,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:33,064 INFO L85 PathProgramCache]: Analyzing trace with hash -910626744, now seen corresponding path program 1 times [2023-11-19 05:19:33,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:19:33,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966237685] [2023-11-19 05:19:33,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:33,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:19:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:33,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:19:33,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:19:33,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966237685] [2023-11-19 05:19:33,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966237685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:33,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:33,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:19:33,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846062996] [2023-11-19 05:19:33,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:33,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:19:33,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:19:33,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:19:33,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:19:33,253 INFO L87 Difference]: Start difference. First operand 2291 states and 3158 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) [2023-11-19 05:19:35,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:35,390 INFO L93 Difference]: Finished difference Result 2293 states and 3159 transitions. [2023-11-19 05:19:35,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:19:35,392 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 [2023-11-19 05:19:35,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:35,408 INFO L225 Difference]: With dead ends: 2293 [2023-11-19 05:19:35,408 INFO L226 Difference]: Without dead ends: 2258 [2023-11-19 05:19:35,410 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 [2023-11-19 05:19:35,411 INFO L413 NwaCegarLoop]: 1344 mSDtfsCounter, 1503 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:35,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1344 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-19 05:19:35,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2023-11-19 05:19:35,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 2252. [2023-11-19 05:19:35,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2252 states, 1370 states have (on average 1.3116788321167883) internal successors, (1797), 1414 states have internal predecessors, (1797), 651 states have call successors, (651), 231 states have call predecessors, (651), 230 states have return successors, (650), 632 states have call predecessors, (650), 650 states have call successors, (650) [2023-11-19 05:19:35,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 3098 transitions. [2023-11-19 05:19:35,635 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 3098 transitions. Word has length 27 [2023-11-19 05:19:35,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:35,636 INFO L495 AbstractCegarLoop]: Abstraction has 2252 states and 3098 transitions. [2023-11-19 05:19:35,636 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) [2023-11-19 05:19:35,637 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 3098 transitions. [2023-11-19 05:19:35,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-19 05:19:35,648 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:35,648 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] [2023-11-19 05:19:35,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 05:19:35,648 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:35,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:35,649 INFO L85 PathProgramCache]: Analyzing trace with hash 226604391, now seen corresponding path program 1 times [2023-11-19 05:19:35,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:19:35,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807778436] [2023-11-19 05:19:35,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:35,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:19:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:36,036 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:19:36,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:19:36,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807778436] [2023-11-19 05:19:36,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807778436] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:36,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:36,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:19:36,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090198885] [2023-11-19 05:19:36,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:36,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:19:36,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:19:36,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:19:36,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:19:36,042 INFO L87 Difference]: Start difference. First operand 2252 states and 3098 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) [2023-11-19 05:19:37,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:19:39,880 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 [] [2023-11-19 05:19:45,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:45,225 INFO L93 Difference]: Finished difference Result 5943 states and 8152 transitions. [2023-11-19 05:19:45,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:19:45,227 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 44 [2023-11-19 05:19:45,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:45,254 INFO L225 Difference]: With dead ends: 5943 [2023-11-19 05:19:45,255 INFO L226 Difference]: Without dead ends: 3692 [2023-11-19 05:19:45,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:19:45,269 INFO L413 NwaCegarLoop]: 1998 mSDtfsCounter, 1454 mSDsluCounter, 2518 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 4516 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:45,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 4516 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 678 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2023-11-19 05:19:45,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3692 states. [2023-11-19 05:19:45,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3692 to 3680. [2023-11-19 05:19:45,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 2234 states have (on average 1.3043867502238138) internal successors, (2914), 2307 states have internal predecessors, (2914), 1060 states have call successors, (1060), 386 states have call predecessors, (1060), 385 states have return successors, (1059), 1029 states have call predecessors, (1059), 1059 states have call successors, (1059) [2023-11-19 05:19:45,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 5033 transitions. [2023-11-19 05:19:45,743 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 5033 transitions. Word has length 44 [2023-11-19 05:19:45,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:45,745 INFO L495 AbstractCegarLoop]: Abstraction has 3680 states and 5033 transitions. [2023-11-19 05:19:45,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2023-11-19 05:19:45,746 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 5033 transitions. [2023-11-19 05:19:45,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-19 05:19:45,752 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:45,753 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:19:45,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 05:19:45,753 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:45,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:45,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1525545260, now seen corresponding path program 1 times [2023-11-19 05:19:45,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:19:45,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34027790] [2023-11-19 05:19:45,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:45,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:19:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:46,439 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 05:19:46,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:19:46,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34027790] [2023-11-19 05:19:46,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34027790] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:46,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:46,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 05:19:46,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706994535] [2023-11-19 05:19:46,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:46,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 05:19:46,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:19:46,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 05:19:46,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:19:46,442 INFO L87 Difference]: Start difference. First operand 3680 states and 5033 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 4 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5)