./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 527bcce2 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_85d23969-86dc-4cab-aa9a-b4ce35e4e8ef/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d23969-86dc-4cab-aa9a-b4ce35e4e8ef/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d23969-86dc-4cab-aa9a-b4ce35e4e8ef/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d23969-86dc-4cab-aa9a-b4ce35e4e8ef/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.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_85d23969-86dc-4cab-aa9a-b4ce35e4e8ef/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d23969-86dc-4cab-aa9a-b4ce35e4e8ef/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f37e3824e515882c7bcf8c367d3f56b0297fad2493f001664c6f9188e65f0eab --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:19:39,140 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:19:39,248 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d23969-86dc-4cab-aa9a-b4ce35e4e8ef/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:19:39,255 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:19:39,256 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:19:39,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:19:39,294 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:19:39,294 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:19:39,295 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:19:39,300 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:19:39,301 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:19:39,301 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:19:39,302 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:19:39,303 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:19:39,304 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:19:39,304 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:19:39,304 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:19:39,305 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:19:39,305 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:19:39,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:19:39,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:19:39,307 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:19:39,307 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:19:39,307 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:19:39,308 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:19:39,309 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:19:39,309 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:19:39,309 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:19:39,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:19:39,310 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:19:39,311 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:19:39,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:19:39,312 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:19:39,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:19:39,312 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:19:39,313 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:19:39,313 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:19:39,313 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:19:39,313 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:19:39,313 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_85d23969-86dc-4cab-aa9a-b4ce35e4e8ef/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d23969-86dc-4cab-aa9a-b4ce35e4e8ef/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f37e3824e515882c7bcf8c367d3f56b0297fad2493f001664c6f9188e65f0eab [2023-11-21 22:19:39,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:19:39,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:19:39,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:19:39,623 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:19:39,624 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:19:39,626 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d23969-86dc-4cab-aa9a-b4ce35e4e8ef/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2023-11-21 22:19:43,320 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:19:44,070 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:19:44,071 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d23969-86dc-4cab-aa9a-b4ce35e4e8ef/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2023-11-21 22:19:44,124 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d23969-86dc-4cab-aa9a-b4ce35e4e8ef/bin/uautomizer-verify-bycVGegfSx/data/c73f4f2e6/c39950f930f245708a8b03b4e50e3a03/FLAGba933bc85 [2023-11-21 22:19:44,143 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d23969-86dc-4cab-aa9a-b4ce35e4e8ef/bin/uautomizer-verify-bycVGegfSx/data/c73f4f2e6/c39950f930f245708a8b03b4e50e3a03 [2023-11-21 22:19:44,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:19:44,151 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:19:44,154 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:19:44,155 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:19:44,161 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:19:44,162 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:19:44" (1/1) ... [2023-11-21 22:19:44,164 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@421ddf8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:44, skipping insertion in model container [2023-11-21 22:19:44,164 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:19:44" (1/1) ... [2023-11-21 22:19:44,333 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:19:46,435 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_85d23969-86dc-4cab-aa9a-b4ce35e4e8ef/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i[213319,213332] [2023-11-21 22:19:46,585 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:19:46,658 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:19:46,846 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] [2023-11-21 22:19:46,849 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] [2023-11-21 22:19:46,852 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] [2023-11-21 22:19:46,852 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] [2023-11-21 22:19:46,857 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [4204] [2023-11-21 22:19:46,858 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [4211] [2023-11-21 22:19:46,859 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [4233] [2023-11-21 22:19:46,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [4240] [2023-11-21 22:19:46,862 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [4247] [2023-11-21 22:19:46,863 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [4254] [2023-11-21 22:19:46,864 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [4261] [2023-11-21 22:19:46,891 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] [2023-11-21 22:19:46,895 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] [2023-11-21 22:19:46,902 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] [2023-11-21 22:19:46,904 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] [2023-11-21 22:19:46,909 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] [2023-11-21 22:19:46,911 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] [2023-11-21 22:19:47,085 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] [2023-11-21 22:19:47,222 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] [2023-11-21 22:19:47,223 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] [2023-11-21 22:19:47,223 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] [2023-11-21 22:19:47,224 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] [2023-11-21 22:19:47,224 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] [2023-11-21 22:19:47,225 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] [2023-11-21 22:19:47,226 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] [2023-11-21 22:19:47,226 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] [2023-11-21 22:19:47,227 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] [2023-11-21 22:19:47,227 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] [2023-11-21 22:19:47,326 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_85d23969-86dc-4cab-aa9a-b4ce35e4e8ef/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i[213319,213332] [2023-11-21 22:19:47,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:19:47,485 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:19:47,495 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:19:47,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:47 WrapperNode [2023-11-21 22:19:47,496 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:19:47,498 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:19:47,498 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:19:47,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:19:47,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:47" (1/1) ... [2023-11-21 22:19:47,612 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:47" (1/1) ... [2023-11-21 22:19:47,869 INFO L138 Inliner]: procedures = 269, calls = 1626, calls flagged for inlining = 116, calls inlined = 91, statements flattened = 3847 [2023-11-21 22:19:47,869 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:19:47,871 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:19:47,871 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:19:47,872 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:19:47,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:47" (1/1) ... [2023-11-21 22:19:47,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:47" (1/1) ... [2023-11-21 22:19:47,923 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:47" (1/1) ... [2023-11-21 22:19:49,064 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure #Ultimate.C_memset is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2023-11-21 22:19:49,065 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:47" (1/1) ... [2023-11-21 22:19:49,065 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:47" (1/1) ... [2023-11-21 22:19:49,189 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:47" (1/1) ... [2023-11-21 22:19:49,220 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:47" (1/1) ... [2023-11-21 22:19:49,252 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:47" (1/1) ... [2023-11-21 22:19:49,273 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:47" (1/1) ... [2023-11-21 22:19:49,311 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:19:49,313 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:19:49,313 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:19:49,314 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:19:49,315 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:47" (1/1) ... [2023-11-21 22:19:49,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:19:49,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d23969-86dc-4cab-aa9a-b4ce35e4e8ef/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:49,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d23969-86dc-4cab-aa9a-b4ce35e4e8ef/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:19:49,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85d23969-86dc-4cab-aa9a-b4ce35e4e8ef/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:19:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure free_hba [2023-11-21 22:19:49,409 INFO L138 BoogieDeclarations]: Found implementation of procedure free_hba [2023-11-21 22:19:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_submit_command [2023-11-21 22:19:49,410 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_submit_command [2023-11-21 22:19:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2023-11-21 22:19:49,410 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2023-11-21 22:19:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-21 22:19:49,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-21 22:19:49,411 INFO L130 BoogieDeclarations]: Found specification of procedure cpqarray_remove_one [2023-11-21 22:19:49,411 INFO L138 BoogieDeclarations]: Found implementation of procedure cpqarray_remove_one [2023-11-21 22:19:49,411 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_cpqarray_hba [2023-11-21 22:19:49,411 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_cpqarray_hba [2023-11-21 22:19:49,412 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_intr_mask [2023-11-21 22:19:49,412 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_intr_mask [2023-11-21 22:19:49,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 22:19:49,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 22:19:49,412 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2023-11-21 22:19:49,413 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2023-11-21 22:19:49,413 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_completed [2023-11-21 22:19:49,413 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_completed [2023-11-21 22:19:49,413 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2023-11-21 22:19:49,413 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2023-11-21 22:19:49,413 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_intr_pending [2023-11-21 22:19:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_intr_pending [2023-11-21 22:19:49,414 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_intr_mask [2023-11-21 22:19:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_intr_mask [2023-11-21 22:19:49,414 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-11-21 22:19:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-11-21 22:19:49,414 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-21 22:19:49,415 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-21 22:19:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2023-11-21 22:19:49,415 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2023-11-21 22:19:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-21 22:19:49,416 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-21 22:19:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 22:19:49,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 22:19:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-21 22:19:49,418 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-21 22:19:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2023-11-21 22:19:49,419 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2023-11-21 22:19:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-21 22:19:49,419 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-21 22:19:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure start_io [2023-11-21 22:19:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure start_io [2023-11-21 22:19:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cpqarray_mutex [2023-11-21 22:19:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cpqarray_mutex [2023-11-21 22:19:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 22:19:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 22:19:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_completed [2023-11-21 22:19:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_completed [2023-11-21 22:19:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cpqarray_mutex [2023-11-21 22:19:49,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cpqarray_mutex [2023-11-21 22:19:49,423 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-21 22:19:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-21 22:19:49,423 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-21 22:19:49,423 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-21 22:19:49,424 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-21 22:19:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-21 22:19:49,424 INFO L130 BoogieDeclarations]: Found specification of procedure cmd_free [2023-11-21 22:19:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure cmd_free [2023-11-21 22:19:49,425 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2023-11-21 22:19:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2023-11-21 22:19:49,426 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-21 22:19:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-21 22:19:49,427 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_completed [2023-11-21 22:19:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_completed [2023-11-21 22:19:49,427 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-11-21 22:19:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-11-21 22:19:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:19:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-21 22:19:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_fifo_full [2023-11-21 22:19:49,428 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_fifo_full [2023-11-21 22:19:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure release_io_mem [2023-11-21 22:19:49,496 INFO L138 BoogieDeclarations]: Found implementation of procedure release_io_mem [2023-11-21 22:19:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:19:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-21 22:19:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-21 22:19:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2023-11-21 22:19:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2023-11-21 22:19:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-21 22:19:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-21 22:19:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_intr_pending [2023-11-21 22:19:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_intr_pending [2023-11-21 22:19:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_logical_block_size [2023-11-21 22:19:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_logical_block_size [2023-11-21 22:19:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure sendcmd [2023-11-21 22:19:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure sendcmd [2023-11-21 22:19:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-21 22:19:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-21 22:19:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure get_drv [2023-11-21 22:19:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure get_drv [2023-11-21 22:19:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-21 22:19:49,499 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-21 22:19:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:19:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:19:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-21 22:19:49,499 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-21 22:19:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 22:19:49,499 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 22:19:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-21 22:19:49,499 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-21 22:19:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure ida_revalidate [2023-11-21 22:19:49,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_revalidate [2023-11-21 22:19:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-21 22:19:49,502 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-21 22:19:49,502 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-21 22:19:49,502 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-21 22:19:49,502 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_submit_command [2023-11-21 22:19:49,502 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_submit_command [2023-11-21 22:19:49,502 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-21 22:19:49,503 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-21 22:19:49,503 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-21 22:19:49,503 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-21 22:19:49,503 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-21 22:19:49,503 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-21 22:19:49,503 INFO L130 BoogieDeclarations]: Found specification of procedure cpqarray_register_ctlr [2023-11-21 22:19:49,503 INFO L138 BoogieDeclarations]: Found implementation of procedure cpqarray_register_ctlr [2023-11-21 22:19:49,503 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-21 22:19:49,503 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-21 22:19:49,504 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-21 22:19:49,504 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-21 22:19:49,504 INFO L130 BoogieDeclarations]: Found specification of procedure ida_ioctl [2023-11-21 22:19:49,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_ioctl [2023-11-21 22:19:49,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:19:49,504 INFO L130 BoogieDeclarations]: Found specification of procedure cmd_alloc [2023-11-21 22:19:49,504 INFO L138 BoogieDeclarations]: Found implementation of procedure cmd_alloc [2023-11-21 22:19:49,504 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_fifo_full [2023-11-21 22:19:49,505 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_fifo_full [2023-11-21 22:19:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_intr_pending [2023-11-21 22:19:49,505 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_intr_pending [2023-11-21 22:19:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-21 22:19:49,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-21 22:19:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_fifo_full [2023-11-21 22:19:49,505 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_fifo_full [2023-11-21 22:19:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_submit_command [2023-11-21 22:19:49,505 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_submit_command [2023-11-21 22:19:49,506 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_intr_pending [2023-11-21 22:19:49,506 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_intr_pending [2023-11-21 22:19:49,506 INFO L130 BoogieDeclarations]: Found specification of procedure get_host [2023-11-21 22:19:49,506 INFO L138 BoogieDeclarations]: Found implementation of procedure get_host [2023-11-21 22:19:49,506 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_submit_command [2023-11-21 22:19:49,506 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_submit_command [2023-11-21 22:19:49,506 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 22:19:49,506 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 22:19:49,506 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2023-11-21 22:19:49,507 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2023-11-21 22:19:49,507 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-21 22:19:49,507 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-21 22:19:49,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:19:49,507 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-21 22:19:49,507 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-21 22:19:49,507 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2023-11-21 22:19:49,507 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2023-11-21 22:19:49,507 INFO L130 BoogieDeclarations]: Found specification of procedure removeQ [2023-11-21 22:19:49,508 INFO L138 BoogieDeclarations]: Found implementation of procedure removeQ [2023-11-21 22:19:49,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 22:19:49,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 22:19:49,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:19:49,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:19:49,512 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-21 22:19:49,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-21 22:19:49,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:19:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-21 22:19:49,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-21 22:19:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_intr_mask [2023-11-21 22:19:49,513 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_intr_mask [2023-11-21 22:19:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-21 22:19:49,514 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-21 22:19:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-21 22:19:49,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-21 22:19:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2023-11-21 22:19:49,514 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2023-11-21 22:19:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_intr_mask [2023-11-21 22:19:49,515 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_intr_mask [2023-11-21 22:19:49,515 INFO L130 BoogieDeclarations]: Found specification of procedure getgeometry [2023-11-21 22:19:49,515 INFO L138 BoogieDeclarations]: Found implementation of procedure getgeometry [2023-11-21 22:19:49,515 INFO L130 BoogieDeclarations]: Found specification of procedure ida_getgeo [2023-11-21 22:19:49,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_getgeo [2023-11-21 22:19:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-21 22:19:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-21 22:19:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_fifo_full [2023-11-21 22:19:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_fifo_full [2023-11-21 22:19:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2023-11-21 22:19:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2023-11-21 22:19:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-21 22:19:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-21 22:19:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-21 22:19:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-21 22:19:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-21 22:19:49,518 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-21 22:19:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-21 22:19:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-21 22:19:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:19:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-21 22:19:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-21 22:19:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2023-11-21 22:19:49,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2023-11-21 22:19:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_completed [2023-11-21 22:19:49,520 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_completed [2023-11-21 22:19:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:19:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:19:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure addQ [2023-11-21 22:19:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure addQ [2023-11-21 22:19:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-21 22:19:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-21 22:19:50,282 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:19:50,289 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:19:57,146 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:20:00,156 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:20:00,156 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:20:00,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:00 BoogieIcfgContainer [2023-11-21 22:20:00,159 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:20:00,164 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:20:00,164 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:20:00,168 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:20:00,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:19:44" (1/3) ... [2023-11-21 22:20:00,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780b8ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:20:00, skipping insertion in model container [2023-11-21 22:20:00,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:19:47" (2/3) ... [2023-11-21 22:20:00,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780b8ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:20:00, skipping insertion in model container [2023-11-21 22:20:00,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:00" (3/3) ... [2023-11-21 22:20:00,175 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2023-11-21 22:20:00,202 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:20:00,202 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:20:00,333 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:20:00,343 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=PETRI_NET, 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;@72e58e4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:20:00,344 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:20:00,360 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) [2023-11-21 22:20:00,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 22:20:00,375 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:00,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:00,376 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:20:00,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:00,383 INFO L85 PathProgramCache]: Analyzing trace with hash -801379906, now seen corresponding path program 1 times [2023-11-21 22:20:00,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:00,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570082665] [2023-11-21 22:20:00,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:00,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:00,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:01,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:01,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:01,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570082665] [2023-11-21 22:20:01,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570082665] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:01,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:01,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:01,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860411955] [2023-11-21 22:20:01,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:01,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:01,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:01,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:01,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:01,262 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) [2023-11-21 22:20:05,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:20:07,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:07,547 INFO L93 Difference]: Finished difference Result 2998 states and 4246 transitions. [2023-11-21 22:20:07,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:07,552 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 [2023-11-21 22:20:07,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:07,593 INFO L225 Difference]: With dead ends: 2998 [2023-11-21 22:20:07,594 INFO L226 Difference]: Without dead ends: 1894 [2023-11-21 22:20:07,619 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 [2023-11-21 22:20:07,624 INFO L413 NwaCegarLoop]: 1363 mSDtfsCounter, 1129 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:07,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 2700 Invalid, 392 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-11-21 22:20:07,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states. [2023-11-21 22:20:07,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1880. [2023-11-21 22:20:07,867 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) [2023-11-21 22:20:07,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1880 states to 1880 states and 2644 transitions. [2023-11-21 22:20:07,896 INFO L78 Accepts]: Start accepts. Automaton has 1880 states and 2644 transitions. Word has length 12 [2023-11-21 22:20:07,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:07,897 INFO L495 AbstractCegarLoop]: Abstraction has 1880 states and 2644 transitions. [2023-11-21 22:20:07,897 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) [2023-11-21 22:20:07,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1880 states and 2644 transitions. [2023-11-21 22:20:07,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-21 22:20:07,906 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:07,906 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] [2023-11-21 22:20:07,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:20:07,907 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:20:07,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:07,907 INFO L85 PathProgramCache]: Analyzing trace with hash 2007050743, now seen corresponding path program 1 times [2023-11-21 22:20:07,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:07,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013290862] [2023-11-21 22:20:07,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:07,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:08,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:20:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:08,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:08,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:08,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013290862] [2023-11-21 22:20:08,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013290862] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:08,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:08,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:20:08,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851452898] [2023-11-21 22:20:08,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:08,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:08,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:08,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:08,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:08,255 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) [2023-11-21 22:20:11,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:20:13,890 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 [] [2023-11-21 22:20:14,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:14,351 INFO L93 Difference]: Finished difference Result 2299 states and 3168 transitions. [2023-11-21 22:20:14,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:14,351 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 [2023-11-21 22:20:14,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:14,370 INFO L225 Difference]: With dead ends: 2299 [2023-11-21 22:20:14,370 INFO L226 Difference]: Without dead ends: 2295 [2023-11-21 22:20:14,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:14,373 INFO L413 NwaCegarLoop]: 1489 mSDtfsCounter, 1176 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:14,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 2233 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 312 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2023-11-21 22:20:14,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2023-11-21 22:20:14,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 2293. [2023-11-21 22:20:14,520 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) [2023-11-21 22:20:14,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2293 states to 2293 states and 3162 transitions. [2023-11-21 22:20:14,540 INFO L78 Accepts]: Start accepts. Automaton has 2293 states and 3162 transitions. Word has length 24 [2023-11-21 22:20:14,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:14,541 INFO L495 AbstractCegarLoop]: Abstraction has 2293 states and 3162 transitions. [2023-11-21 22:20:14,541 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) [2023-11-21 22:20:14,541 INFO L276 IsEmpty]: Start isEmpty. Operand 2293 states and 3162 transitions. [2023-11-21 22:20:14,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 22:20:14,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:14,547 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] [2023-11-21 22:20:14,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:20:14,548 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:20:14,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:14,549 INFO L85 PathProgramCache]: Analyzing trace with hash 2088419745, now seen corresponding path program 1 times [2023-11-21 22:20:14,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:14,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685129957] [2023-11-21 22:20:14,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:14,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:14,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:20:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:14,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:14,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:14,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685129957] [2023-11-21 22:20:14,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685129957] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:14,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:14,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:20:14,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775061326] [2023-11-21 22:20:14,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:14,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:14,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:14,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:14,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:14,894 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) [2023-11-21 22:20:16,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:20:18,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:20:18,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:18,473 INFO L93 Difference]: Finished difference Result 2295 states and 3163 transitions. [2023-11-21 22:20:18,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:18,477 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 [2023-11-21 22:20:18,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:18,496 INFO L225 Difference]: With dead ends: 2295 [2023-11-21 22:20:18,496 INFO L226 Difference]: Without dead ends: 2292 [2023-11-21 22:20:18,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:18,500 INFO L413 NwaCegarLoop]: 1347 mSDtfsCounter, 1509 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s 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, 3.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:18,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1347 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-21 22:20:18,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2023-11-21 22:20:18,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2292. [2023-11-21 22:20:18,634 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) [2023-11-21 22:20:18,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 3160 transitions. [2023-11-21 22:20:18,651 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 3160 transitions. Word has length 25 [2023-11-21 22:20:18,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:18,651 INFO L495 AbstractCegarLoop]: Abstraction has 2292 states and 3160 transitions. [2023-11-21 22:20:18,652 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) [2023-11-21 22:20:18,652 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 3160 transitions. [2023-11-21 22:20:18,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-21 22:20:18,654 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:18,654 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] [2023-11-21 22:20:18,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:20:18,655 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:20:18,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:18,655 INFO L85 PathProgramCache]: Analyzing trace with hash 315896378, now seen corresponding path program 1 times [2023-11-21 22:20:18,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:18,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934816256] [2023-11-21 22:20:18,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:18,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:18,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:18,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:20:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:18,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:18,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:18,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934816256] [2023-11-21 22:20:18,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934816256] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:18,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:18,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:20:18,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231561290] [2023-11-21 22:20:18,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:18,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:18,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:18,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:18,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:18,898 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) [2023-11-21 22:20:22,023 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 [] [2023-11-21 22:20:22,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:22,449 INFO L93 Difference]: Finished difference Result 2294 states and 3161 transitions. [2023-11-21 22:20:22,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:22,452 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 [2023-11-21 22:20:22,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:22,470 INFO L225 Difference]: With dead ends: 2294 [2023-11-21 22:20:22,470 INFO L226 Difference]: Without dead ends: 2291 [2023-11-21 22:20:22,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:22,473 INFO L413 NwaCegarLoop]: 1345 mSDtfsCounter, 1506 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:22,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1345 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2023-11-21 22:20:22,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2023-11-21 22:20:22,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2291. [2023-11-21 22:20:22,693 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) [2023-11-21 22:20:22,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 3158 transitions. [2023-11-21 22:20:22,713 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 3158 transitions. Word has length 26 [2023-11-21 22:20:22,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:22,713 INFO L495 AbstractCegarLoop]: Abstraction has 2291 states and 3158 transitions. [2023-11-21 22:20:22,713 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) [2023-11-21 22:20:22,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 3158 transitions. [2023-11-21 22:20:22,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 22:20:22,716 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:22,716 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] [2023-11-21 22:20:22,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:20:22,716 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:20:22,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:22,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1202251716, now seen corresponding path program 1 times [2023-11-21 22:20:22,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:22,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891359207] [2023-11-21 22:20:22,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:22,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:22,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:20:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:22,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:22,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:22,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891359207] [2023-11-21 22:20:22,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891359207] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:22,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:22,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:20:22,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538175297] [2023-11-21 22:20:22,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:22,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:22,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:22,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:22,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:22,976 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) [2023-11-21 22:20:25,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:25,016 INFO L93 Difference]: Finished difference Result 2293 states and 3159 transitions. [2023-11-21 22:20:25,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:25,018 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 [2023-11-21 22:20:25,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:25,035 INFO L225 Difference]: With dead ends: 2293 [2023-11-21 22:20:25,035 INFO L226 Difference]: Without dead ends: 2258 [2023-11-21 22:20:25,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:25,039 INFO L413 NwaCegarLoop]: 1344 mSDtfsCounter, 1503 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s 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, 1.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:25,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1344 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-21 22:20:25,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2023-11-21 22:20:25,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 2252. [2023-11-21 22:20:25,208 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) [2023-11-21 22:20:25,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 3098 transitions. [2023-11-21 22:20:25,221 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 3098 transitions. Word has length 27 [2023-11-21 22:20:25,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:25,221 INFO L495 AbstractCegarLoop]: Abstraction has 2252 states and 3098 transitions. [2023-11-21 22:20:25,222 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) [2023-11-21 22:20:25,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 3098 transitions. [2023-11-21 22:20:25,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-21 22:20:25,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:25,226 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] [2023-11-21 22:20:25,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:20:25,226 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:20:25,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:25,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1787260825, now seen corresponding path program 1 times [2023-11-21 22:20:25,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:25,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887530262] [2023-11-21 22:20:25,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:25,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:25,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:20:25,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:25,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-21 22:20:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:25,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:20:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:25,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-21 22:20:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:25,728 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:25,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:25,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887530262] [2023-11-21 22:20:25,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887530262] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:25,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:25,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:20:25,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738049584] [2023-11-21 22:20:25,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:25,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:20:25,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:25,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:20:25,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:25,731 INFO L87 Difference]: Start difference. First operand 2252 states and 3098 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4)