./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 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77218e0d-1ef1-4426-9016-60df74841db0/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77218e0d-1ef1-4426-9016-60df74841db0/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77218e0d-1ef1-4426-9016-60df74841db0/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77218e0d-1ef1-4426-9016-60df74841db0/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77218e0d-1ef1-4426-9016-60df74841db0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77218e0d-1ef1-4426-9016-60df74841db0/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f37e3824e515882c7bcf8c367d3f56b0297fad2493f001664c6f9188e65f0eab --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:38:03,663 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:38:03,734 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77218e0d-1ef1-4426-9016-60df74841db0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:38:03,740 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:38:03,740 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:38:03,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:38:03,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:38:03,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:38:03,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:38:03,769 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:38:03,770 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:38:03,770 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:38:03,771 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:38:03,772 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:38:03,772 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:38:03,773 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:38:03,773 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:38:03,774 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:38:03,775 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:38:03,775 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:38:03,776 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:38:03,777 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:38:03,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:38:03,778 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:38:03,779 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:38:03,779 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:38:03,780 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:38:03,780 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:38:03,781 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:38:03,782 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:38:03,782 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:38:03,783 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:38:03,783 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:38:03,784 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:38:03,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:38:03,785 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:38:03,785 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:38:03,786 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:38:03,786 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:38:03,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:38:03,787 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:38:03,788 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:38:03,788 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:38:03,789 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:38:03,789 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77218e0d-1ef1-4426-9016-60df74841db0/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77218e0d-1ef1-4426-9016-60df74841db0/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f37e3824e515882c7bcf8c367d3f56b0297fad2493f001664c6f9188e65f0eab [2023-11-23 20:38:04,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:38:04,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:38:04,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:38:04,170 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:38:04,173 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:38:04,175 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77218e0d-1ef1-4426-9016-60df74841db0/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2023-11-23 20:38:07,346 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:38:08,029 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:38:08,029 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77218e0d-1ef1-4426-9016-60df74841db0/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2023-11-23 20:38:08,075 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77218e0d-1ef1-4426-9016-60df74841db0/bin/utaipan-verify-mE87zJ7Ire/data/c567e22c6/438545d781474e05a93db39484c98d58/FLAG8fbd43986 [2023-11-23 20:38:08,089 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77218e0d-1ef1-4426-9016-60df74841db0/bin/utaipan-verify-mE87zJ7Ire/data/c567e22c6/438545d781474e05a93db39484c98d58 [2023-11-23 20:38:08,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:38:08,093 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:38:08,095 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:38:08,095 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:38:08,109 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:38:08,110 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:38:08" (1/1) ... [2023-11-23 20:38:08,111 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f72c0e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:08, skipping insertion in model container [2023-11-23 20:38:08,112 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:38:08" (1/1) ... [2023-11-23 20:38:08,253 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:38:10,296 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_77218e0d-1ef1-4426-9016-60df74841db0/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i[213319,213332] [2023-11-23 20:38:10,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:38:10,467 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:38:10,639 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] [2023-11-23 20:38:10,641 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] [2023-11-23 20:38:10,643 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] [2023-11-23 20:38:10,644 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] [2023-11-23 20:38:10,647 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [4204] [2023-11-23 20:38:10,648 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [4211] [2023-11-23 20:38:10,650 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [4233] [2023-11-23 20:38:10,650 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [4240] [2023-11-23 20:38:10,652 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [4247] [2023-11-23 20:38:10,653 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [4254] [2023-11-23 20:38:10,653 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [4261] [2023-11-23 20:38:10,676 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] [2023-11-23 20:38:10,677 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] [2023-11-23 20:38:10,683 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] [2023-11-23 20:38:10,685 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] [2023-11-23 20:38:10,689 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] [2023-11-23 20:38:10,692 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] [2023-11-23 20:38:10,833 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] [2023-11-23 20:38:10,920 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] [2023-11-23 20:38:10,920 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] [2023-11-23 20:38:10,921 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] [2023-11-23 20:38:10,921 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] [2023-11-23 20:38:10,921 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] [2023-11-23 20:38:10,923 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] [2023-11-23 20:38:10,923 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] [2023-11-23 20:38:10,924 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] [2023-11-23 20:38:10,924 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] [2023-11-23 20:38:10,924 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] [2023-11-23 20:38:10,998 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_77218e0d-1ef1-4426-9016-60df74841db0/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i[213319,213332] [2023-11-23 20:38:11,018 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:38:11,113 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:38:11,122 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:38:11,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:11 WrapperNode [2023-11-23 20:38:11,123 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:38:11,124 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:38:11,124 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:38:11,125 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:38:11,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:11" (1/1) ... [2023-11-23 20:38:11,225 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:11" (1/1) ... [2023-11-23 20:38:11,473 INFO L138 Inliner]: procedures = 269, calls = 1626, calls flagged for inlining = 116, calls inlined = 91, statements flattened = 3847 [2023-11-23 20:38:11,473 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:38:11,474 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:38:11,474 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:38:11,474 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:38:11,484 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:11" (1/1) ... [2023-11-23 20:38:11,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:11" (1/1) ... [2023-11-23 20:38:11,510 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:11" (1/1) ... [2023-11-23 20:38:11,511 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:11" (1/1) ... [2023-11-23 20:38:11,611 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:11" (1/1) ... [2023-11-23 20:38:11,631 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:11" (1/1) ... [2023-11-23 20:38:11,657 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:11" (1/1) ... [2023-11-23 20:38:11,692 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:11" (1/1) ... [2023-11-23 20:38:11,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:38:11,735 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:38:11,736 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:38:11,738 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:38:11,739 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:11" (1/1) ... [2023-11-23 20:38:11,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:38:11,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77218e0d-1ef1-4426-9016-60df74841db0/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:38:11,776 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77218e0d-1ef1-4426-9016-60df74841db0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:38:11,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77218e0d-1ef1-4426-9016-60df74841db0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:38:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure free_hba [2023-11-23 20:38:11,824 INFO L138 BoogieDeclarations]: Found implementation of procedure free_hba [2023-11-23 20:38:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_submit_command [2023-11-23 20:38:11,824 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_submit_command [2023-11-23 20:38:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2023-11-23 20:38:11,825 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2023-11-23 20:38:11,825 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-23 20:38:11,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-23 20:38:11,825 INFO L130 BoogieDeclarations]: Found specification of procedure cpqarray_remove_one [2023-11-23 20:38:11,825 INFO L138 BoogieDeclarations]: Found implementation of procedure cpqarray_remove_one [2023-11-23 20:38:11,825 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_cpqarray_hba [2023-11-23 20:38:11,825 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_cpqarray_hba [2023-11-23 20:38:11,825 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_intr_mask [2023-11-23 20:38:11,826 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_intr_mask [2023-11-23 20:38:11,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:38:11,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:38:11,826 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2023-11-23 20:38:11,826 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2023-11-23 20:38:11,826 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_completed [2023-11-23 20:38:11,826 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_completed [2023-11-23 20:38:11,826 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2023-11-23 20:38:11,827 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2023-11-23 20:38:11,827 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_intr_pending [2023-11-23 20:38:11,827 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_intr_pending [2023-11-23 20:38:11,827 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_intr_mask [2023-11-23 20:38:11,827 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_intr_mask [2023-11-23 20:38:11,827 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-11-23 20:38:11,827 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-11-23 20:38:11,827 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 20:38:11,828 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 20:38:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2023-11-23 20:38:11,828 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2023-11-23 20:38:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 20:38:11,829 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 20:38:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 20:38:11,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 20:38:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-23 20:38:11,830 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-23 20:38:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2023-11-23 20:38:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2023-11-23 20:38:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 20:38:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 20:38:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure start_io [2023-11-23 20:38:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure start_io [2023-11-23 20:38:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cpqarray_mutex [2023-11-23 20:38:11,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cpqarray_mutex [2023-11-23 20:38:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 20:38:11,832 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 20:38:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_completed [2023-11-23 20:38:11,833 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_completed [2023-11-23 20:38:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cpqarray_mutex [2023-11-23 20:38:11,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cpqarray_mutex [2023-11-23 20:38:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-23 20:38:11,833 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-23 20:38:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 20:38:11,834 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 20:38:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-23 20:38:11,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-23 20:38:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure cmd_free [2023-11-23 20:38:11,835 INFO L138 BoogieDeclarations]: Found implementation of procedure cmd_free [2023-11-23 20:38:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2023-11-23 20:38:11,835 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2023-11-23 20:38:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 20:38:11,835 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 20:38:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_completed [2023-11-23 20:38:11,836 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_completed [2023-11-23 20:38:11,836 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-11-23 20:38:11,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-11-23 20:38:11,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:38:11,836 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 20:38:11,836 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_fifo_full [2023-11-23 20:38:11,836 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_fifo_full [2023-11-23 20:38:11,836 INFO L130 BoogieDeclarations]: Found specification of procedure release_io_mem [2023-11-23 20:38:11,837 INFO L138 BoogieDeclarations]: Found implementation of procedure release_io_mem [2023-11-23 20:38:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:38:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-23 20:38:11,837 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-23 20:38:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2023-11-23 20:38:11,837 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2023-11-23 20:38:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-23 20:38:11,838 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-23 20:38:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_intr_pending [2023-11-23 20:38:11,838 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_intr_pending [2023-11-23 20:38:11,838 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_logical_block_size [2023-11-23 20:38:11,838 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_logical_block_size [2023-11-23 20:38:11,839 INFO L130 BoogieDeclarations]: Found specification of procedure sendcmd [2023-11-23 20:38:11,839 INFO L138 BoogieDeclarations]: Found implementation of procedure sendcmd [2023-11-23 20:38:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 20:38:11,840 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 20:38:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure get_drv [2023-11-23 20:38:11,840 INFO L138 BoogieDeclarations]: Found implementation of procedure get_drv [2023-11-23 20:38:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-23 20:38:11,840 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-23 20:38:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:38:11,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:38:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-23 20:38:11,841 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-23 20:38:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 20:38:11,841 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 20:38:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-23 20:38:11,841 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-23 20:38:11,841 INFO L130 BoogieDeclarations]: Found specification of procedure ida_revalidate [2023-11-23 20:38:11,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_revalidate [2023-11-23 20:38:11,842 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 20:38:11,842 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 20:38:11,842 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 20:38:11,842 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 20:38:11,842 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_submit_command [2023-11-23 20:38:11,843 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_submit_command [2023-11-23 20:38:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-23 20:38:11,844 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-23 20:38:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-23 20:38:11,844 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-23 20:38:11,844 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-23 20:38:11,844 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-23 20:38:11,845 INFO L130 BoogieDeclarations]: Found specification of procedure cpqarray_register_ctlr [2023-11-23 20:38:11,845 INFO L138 BoogieDeclarations]: Found implementation of procedure cpqarray_register_ctlr [2023-11-23 20:38:11,846 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-23 20:38:11,847 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-23 20:38:11,849 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 20:38:11,850 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 20:38:11,850 INFO L130 BoogieDeclarations]: Found specification of procedure ida_ioctl [2023-11-23 20:38:11,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_ioctl [2023-11-23 20:38:11,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:38:11,852 INFO L130 BoogieDeclarations]: Found specification of procedure cmd_alloc [2023-11-23 20:38:11,853 INFO L138 BoogieDeclarations]: Found implementation of procedure cmd_alloc [2023-11-23 20:38:11,853 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_fifo_full [2023-11-23 20:38:11,853 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_fifo_full [2023-11-23 20:38:11,858 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_intr_pending [2023-11-23 20:38:11,859 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_intr_pending [2023-11-23 20:38:11,859 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 20:38:11,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 20:38:11,859 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_fifo_full [2023-11-23 20:38:11,859 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_fifo_full [2023-11-23 20:38:11,859 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_submit_command [2023-11-23 20:38:11,859 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_submit_command [2023-11-23 20:38:11,859 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_intr_pending [2023-11-23 20:38:11,860 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_intr_pending [2023-11-23 20:38:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure get_host [2023-11-23 20:38:11,860 INFO L138 BoogieDeclarations]: Found implementation of procedure get_host [2023-11-23 20:38:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_submit_command [2023-11-23 20:38:11,860 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_submit_command [2023-11-23 20:38:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 20:38:11,860 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 20:38:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2023-11-23 20:38:11,860 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2023-11-23 20:38:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-23 20:38:11,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-23 20:38:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:38:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-23 20:38:11,861 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-23 20:38:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2023-11-23 20:38:11,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2023-11-23 20:38:11,861 INFO L130 BoogieDeclarations]: Found specification of procedure removeQ [2023-11-23 20:38:11,861 INFO L138 BoogieDeclarations]: Found implementation of procedure removeQ [2023-11-23 20:38:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:38:11,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:38:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:38:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:38:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 20:38:11,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 20:38:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:38:11,862 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 20:38:11,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 20:38:11,863 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_intr_mask [2023-11-23 20:38:11,863 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_intr_mask [2023-11-23 20:38:11,863 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-23 20:38:11,863 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-23 20:38:11,863 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-23 20:38:11,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-23 20:38:11,863 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2023-11-23 20:38:11,863 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2023-11-23 20:38:11,863 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_intr_mask [2023-11-23 20:38:11,864 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_intr_mask [2023-11-23 20:38:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure getgeometry [2023-11-23 20:38:11,864 INFO L138 BoogieDeclarations]: Found implementation of procedure getgeometry [2023-11-23 20:38:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure ida_getgeo [2023-11-23 20:38:11,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_getgeo [2023-11-23 20:38:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-23 20:38:11,864 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-23 20:38:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_fifo_full [2023-11-23 20:38:11,864 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_fifo_full [2023-11-23 20:38:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2023-11-23 20:38:11,865 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2023-11-23 20:38:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-23 20:38:11,865 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-23 20:38:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-23 20:38:11,865 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-23 20:38:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-23 20:38:11,865 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-23 20:38:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-23 20:38:11,866 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-23 20:38:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:38:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 20:38:11,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 20:38:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2023-11-23 20:38:11,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2023-11-23 20:38:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_completed [2023-11-23 20:38:11,866 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_completed [2023-11-23 20:38:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:38:11,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:38:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure addQ [2023-11-23 20:38:11,867 INFO L138 BoogieDeclarations]: Found implementation of procedure addQ [2023-11-23 20:38:11,868 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 20:38:11,868 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 20:38:12,666 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:38:12,675 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:38:18,279 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:38:19,941 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:38:19,941 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:38:19,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:38:19 BoogieIcfgContainer [2023-11-23 20:38:19,944 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:38:19,949 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:38:19,949 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:38:19,953 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:38:19,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:38:08" (1/3) ... [2023-11-23 20:38:19,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c350fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:38:19, skipping insertion in model container [2023-11-23 20:38:19,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:38:11" (2/3) ... [2023-11-23 20:38:19,956 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c350fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:38:19, skipping insertion in model container [2023-11-23 20:38:19,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:38:19" (3/3) ... [2023-11-23 20:38:19,959 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2023-11-23 20:38:19,979 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:38:19,979 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:38:20,080 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:38:20,088 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1ec429a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:38:20,088 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:38:20,099 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) [2023-11-23 20:38:20,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 20:38:20,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:20,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:38:20,116 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:38:20,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:20,123 INFO L85 PathProgramCache]: Analyzing trace with hash -801379906, now seen corresponding path program 1 times [2023-11-23 20:38:20,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:20,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249382449] [2023-11-23 20:38:20,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:20,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:20,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:38:20,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:20,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249382449] [2023-11-23 20:38:20,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249382449] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:20,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:20,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:38:20,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688230987] [2023-11-23 20:38:20,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:20,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:38:20,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:20,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:38:20,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:20,880 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) [2023-11-23 20:38:23,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:38:25,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:38:26,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:26,653 INFO L93 Difference]: Finished difference Result 2998 states and 4246 transitions. [2023-11-23 20:38:26,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:38:26,662 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 [2023-11-23 20:38:26,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:26,710 INFO L225 Difference]: With dead ends: 2998 [2023-11-23 20:38:26,711 INFO L226 Difference]: Without dead ends: 1894 [2023-11-23 20:38:26,732 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 [2023-11-23 20:38:26,738 INFO L413 NwaCegarLoop]: 1363 mSDtfsCounter, 1129 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:26,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 2700 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-11-23 20:38:26,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states. [2023-11-23 20:38:27,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1880. [2023-11-23 20:38:27,010 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) [2023-11-23 20:38:27,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1880 states to 1880 states and 2644 transitions. [2023-11-23 20:38:27,036 INFO L78 Accepts]: Start accepts. Automaton has 1880 states and 2644 transitions. Word has length 12 [2023-11-23 20:38:27,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:27,037 INFO L495 AbstractCegarLoop]: Abstraction has 1880 states and 2644 transitions. [2023-11-23 20:38:27,037 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) [2023-11-23 20:38:27,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1880 states and 2644 transitions. [2023-11-23 20:38:27,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-23 20:38:27,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:27,049 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] [2023-11-23 20:38:27,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:38:27,049 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:38:27,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:27,050 INFO L85 PathProgramCache]: Analyzing trace with hash 2007050743, now seen corresponding path program 1 times [2023-11-23 20:38:27,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:27,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038163286] [2023-11-23 20:38:27,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:27,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:27,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:38:27,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:27,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038163286] [2023-11-23 20:38:27,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038163286] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:27,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:27,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:38:27,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273324751] [2023-11-23 20:38:27,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:27,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:38:27,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:27,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:38:27,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:27,306 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) [2023-11-23 20:38:30,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:30,606 INFO L93 Difference]: Finished difference Result 2299 states and 3168 transitions. [2023-11-23 20:38:30,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:38:30,607 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 [2023-11-23 20:38:30,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:30,630 INFO L225 Difference]: With dead ends: 2299 [2023-11-23 20:38:30,631 INFO L226 Difference]: Without dead ends: 2295 [2023-11-23 20:38:30,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:30,635 INFO L413 NwaCegarLoop]: 1443 mSDtfsCounter, 1176 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 2187 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:30,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 2187 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-23 20:38:30,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2023-11-23 20:38:30,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 2293. [2023-11-23 20:38:30,818 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) [2023-11-23 20:38:30,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2293 states to 2293 states and 3162 transitions. [2023-11-23 20:38:30,843 INFO L78 Accepts]: Start accepts. Automaton has 2293 states and 3162 transitions. Word has length 24 [2023-11-23 20:38:30,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:30,844 INFO L495 AbstractCegarLoop]: Abstraction has 2293 states and 3162 transitions. [2023-11-23 20:38:30,844 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) [2023-11-23 20:38:30,844 INFO L276 IsEmpty]: Start isEmpty. Operand 2293 states and 3162 transitions. [2023-11-23 20:38:30,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 20:38:30,849 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:30,849 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] [2023-11-23 20:38:30,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:38:30,849 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:38:30,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:30,859 INFO L85 PathProgramCache]: Analyzing trace with hash 2088419745, now seen corresponding path program 1 times [2023-11-23 20:38:30,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:30,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680407383] [2023-11-23 20:38:30,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:30,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:31,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:38:31,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:31,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680407383] [2023-11-23 20:38:31,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680407383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:31,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:31,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:38:31,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619063427] [2023-11-23 20:38:31,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:31,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:38:31,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:31,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:38:31,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:31,145 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) [2023-11-23 20:38:34,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:34,293 INFO L93 Difference]: Finished difference Result 2295 states and 3163 transitions. [2023-11-23 20:38:34,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:38:34,296 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 [2023-11-23 20:38:34,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:34,313 INFO L225 Difference]: With dead ends: 2295 [2023-11-23 20:38:34,313 INFO L226 Difference]: Without dead ends: 2292 [2023-11-23 20:38:34,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:34,317 INFO L413 NwaCegarLoop]: 1347 mSDtfsCounter, 1509 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s 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, 3.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:34,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1347 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-23 20:38:34,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2023-11-23 20:38:34,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2292. [2023-11-23 20:38:34,453 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) [2023-11-23 20:38:34,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 3160 transitions. [2023-11-23 20:38:34,472 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 3160 transitions. Word has length 25 [2023-11-23 20:38:34,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:34,473 INFO L495 AbstractCegarLoop]: Abstraction has 2292 states and 3160 transitions. [2023-11-23 20:38:34,473 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) [2023-11-23 20:38:34,473 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 3160 transitions. [2023-11-23 20:38:34,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 20:38:34,475 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:34,476 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] [2023-11-23 20:38:34,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:38:34,476 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:38:34,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:34,477 INFO L85 PathProgramCache]: Analyzing trace with hash 315896378, now seen corresponding path program 1 times [2023-11-23 20:38:34,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:34,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715928921] [2023-11-23 20:38:34,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:34,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:34,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:34,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:38:34,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:34,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715928921] [2023-11-23 20:38:34,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715928921] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:34,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:34,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:38:34,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342668057] [2023-11-23 20:38:34,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:34,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:38:34,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:34,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:38:34,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:34,735 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) [2023-11-23 20:38:37,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:38:38,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:38,243 INFO L93 Difference]: Finished difference Result 2294 states and 3161 transitions. [2023-11-23 20:38:38,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:38:38,246 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 [2023-11-23 20:38:38,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:38,263 INFO L225 Difference]: With dead ends: 2294 [2023-11-23 20:38:38,264 INFO L226 Difference]: Without dead ends: 2291 [2023-11-23 20:38:38,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:38,268 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 [2023-11-23 20:38:38,269 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] [2023-11-23 20:38:38,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2023-11-23 20:38:38,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2291. [2023-11-23 20:38:38,482 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) [2023-11-23 20:38:38,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 3158 transitions. [2023-11-23 20:38:38,499 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 3158 transitions. Word has length 26 [2023-11-23 20:38:38,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:38,500 INFO L495 AbstractCegarLoop]: Abstraction has 2291 states and 3158 transitions. [2023-11-23 20:38:38,500 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) [2023-11-23 20:38:38,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 3158 transitions. [2023-11-23 20:38:38,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-23 20:38:38,503 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:38,504 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] [2023-11-23 20:38:38,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 20:38:38,504 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:38:38,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:38,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1202251716, now seen corresponding path program 1 times [2023-11-23 20:38:38,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:38,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378446889] [2023-11-23 20:38:38,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:38,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:38,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:38:38,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:38,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378446889] [2023-11-23 20:38:38,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378446889] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:38,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:38,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:38:38,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624649060] [2023-11-23 20:38:38,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:38,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:38:38,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:38,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:38:38,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:38,737 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) [2023-11-23 20:38:41,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:38:41,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:41,683 INFO L93 Difference]: Finished difference Result 2293 states and 3159 transitions. [2023-11-23 20:38:41,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:38:41,686 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 [2023-11-23 20:38:41,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:41,703 INFO L225 Difference]: With dead ends: 2293 [2023-11-23 20:38:41,703 INFO L226 Difference]: Without dead ends: 2258 [2023-11-23 20:38:41,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:38:41,706 INFO L413 NwaCegarLoop]: 1344 mSDtfsCounter, 1503 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:41,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1344 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-23 20:38:41,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2023-11-23 20:38:41,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 2252. [2023-11-23 20:38:41,877 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) [2023-11-23 20:38:41,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 3098 transitions. [2023-11-23 20:38:41,891 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 3098 transitions. Word has length 27 [2023-11-23 20:38:41,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:41,892 INFO L495 AbstractCegarLoop]: Abstraction has 2252 states and 3098 transitions. [2023-11-23 20:38:41,892 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) [2023-11-23 20:38:41,892 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 3098 transitions. [2023-11-23 20:38:41,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-23 20:38:41,898 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:41,899 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] [2023-11-23 20:38:41,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 20:38:41,899 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:38:41,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:41,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1787260825, now seen corresponding path program 1 times [2023-11-23 20:38:41,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:41,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511704385] [2023-11-23 20:38:41,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:41,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:42,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:38:42,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:42,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511704385] [2023-11-23 20:38:42,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511704385] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:42,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:42,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 20:38:42,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605317694] [2023-11-23 20:38:42,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:42,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:38:42,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:42,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:38:42,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:38:42,364 INFO L87 Difference]: Start difference. First operand 2252 states and 3098 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 20:38:45,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:38:50,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:38:52,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:38:52,269 INFO L93 Difference]: Finished difference Result 5943 states and 8152 transitions. [2023-11-23 20:38:52,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:38:52,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2023-11-23 20:38:52,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:38:52,303 INFO L225 Difference]: With dead ends: 5943 [2023-11-23 20:38:52,303 INFO L226 Difference]: Without dead ends: 3692 [2023-11-23 20:38:52,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:38:52,317 INFO L413 NwaCegarLoop]: 1998 mSDtfsCounter, 1454 mSDsluCounter, 2518 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 4516 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2023-11-23 20:38:52,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 4516 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 678 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2023-11-23 20:38:52,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3692 states. [2023-11-23 20:38:52,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3692 to 3680. [2023-11-23 20:38:52,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 2234 states have (on average 1.3043867502238138) internal successors, (2914), 2307 states have internal predecessors, (2914), 1060 states have call successors, (1060), 386 states have call predecessors, (1060), 385 states have return successors, (1059), 1029 states have call predecessors, (1059), 1059 states have call successors, (1059) [2023-11-23 20:38:52,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 5033 transitions. [2023-11-23 20:38:52,733 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 5033 transitions. Word has length 44 [2023-11-23 20:38:52,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:38:52,735 INFO L495 AbstractCegarLoop]: Abstraction has 3680 states and 5033 transitions. [2023-11-23 20:38:52,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 20:38:52,737 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 5033 transitions. [2023-11-23 20:38:52,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-23 20:38:52,741 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:38:52,741 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:38:52,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 20:38:52,742 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:38:52,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:38:52,743 INFO L85 PathProgramCache]: Analyzing trace with hash -65174058, now seen corresponding path program 1 times [2023-11-23 20:38:52,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:38:52,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770831149] [2023-11-23 20:38:52,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:38:52,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:38:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:38:53,433 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 20:38:53,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:38:53,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770831149] [2023-11-23 20:38:53,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770831149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:38:53,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:38:53,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 20:38:53,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890894509] [2023-11-23 20:38:53,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:38:53,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 20:38:53,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:38:53,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 20:38:53,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 20:38:53,437 INFO L87 Difference]: Start difference. First operand 3680 states and 5033 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 4 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5)