./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7853ef89-41d7-40b2-9e31-42f08c35f3f3/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7853ef89-41d7-40b2-9e31-42f08c35f3f3/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7853ef89-41d7-40b2-9e31-42f08c35f3f3/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7853ef89-41d7-40b2-9e31-42f08c35f3f3/bin/utaipan-verify-NcY6lQBIFX/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_7853ef89-41d7-40b2-9e31-42f08c35f3f3/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7853ef89-41d7-40b2-9e31-42f08c35f3f3/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f37e3824e515882c7bcf8c367d3f56b0297fad2493f001664c6f9188e65f0eab --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:13:53,032 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:13:53,168 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7853ef89-41d7-40b2-9e31-42f08c35f3f3/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:13:53,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:13:53,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:13:53,214 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:13:53,215 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:13:53,215 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:13:53,217 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:13:53,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:13:53,223 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:13:53,223 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:13:53,224 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:13:53,225 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:13:53,226 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:13:53,226 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:13:53,227 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:13:53,227 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:13:53,228 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:13:53,228 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:13:53,229 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:13:53,229 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:13:53,231 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:13:53,231 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:13:53,231 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:13:53,232 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:13:53,232 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:13:53,233 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:13:53,233 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:13:53,234 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:13:53,235 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:13:53,235 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:13:53,236 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:13:53,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:13:53,236 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:13:53,236 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:13:53,237 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:13:53,237 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:13:53,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:13:53,237 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:13:53,238 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:13:53,238 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:13:53,238 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_7853ef89-41d7-40b2-9e31-42f08c35f3f3/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7853ef89-41d7-40b2-9e31-42f08c35f3f3/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f37e3824e515882c7bcf8c367d3f56b0297fad2493f001664c6f9188e65f0eab [2023-11-12 00:13:53,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:13:53,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:13:53,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:13:53,592 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:13:53,592 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:13:53,593 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7853ef89-41d7-40b2-9e31-42f08c35f3f3/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2023-11-12 00:13:56,736 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:13:57,408 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:13:57,410 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7853ef89-41d7-40b2-9e31-42f08c35f3f3/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2023-11-12 00:13:57,460 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7853ef89-41d7-40b2-9e31-42f08c35f3f3/bin/utaipan-verify-NcY6lQBIFX/data/ee2231890/8ae38074489b45ccb420b27e187e3a53/FLAG51d3d5f87 [2023-11-12 00:13:57,842 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7853ef89-41d7-40b2-9e31-42f08c35f3f3/bin/utaipan-verify-NcY6lQBIFX/data/ee2231890/8ae38074489b45ccb420b27e187e3a53 [2023-11-12 00:13:57,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:13:57,847 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:13:57,848 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:13:57,849 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:13:57,856 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:13:57,857 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:57" (1/1) ... [2023-11-12 00:13:57,858 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e78461c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:57, skipping insertion in model container [2023-11-12 00:13:57,859 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:57" (1/1) ... [2023-11-12 00:13:58,049 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:14:00,263 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_7853ef89-41d7-40b2-9e31-42f08c35f3f3/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i[213319,213332] [2023-11-12 00:14:00,403 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:14:00,460 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:14:00,620 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] [2023-11-12 00:14:00,623 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] [2023-11-12 00:14:00,625 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] [2023-11-12 00:14:00,626 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] [2023-11-12 00:14:00,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [4204] [2023-11-12 00:14:00,630 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [4211] [2023-11-12 00:14:00,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [4233] [2023-11-12 00:14:00,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [4240] [2023-11-12 00:14:00,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [4247] [2023-11-12 00:14:00,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [4254] [2023-11-12 00:14:00,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [4261] [2023-11-12 00:14:00,664 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] [2023-11-12 00:14:00,665 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] [2023-11-12 00:14:00,672 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] [2023-11-12 00:14:00,674 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] [2023-11-12 00:14:00,679 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] [2023-11-12 00:14:00,683 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" (91), "i" (12UL)); [4527-4528] [2023-11-12 00:14:00,934 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] [2023-11-12 00:14:00,993 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] [2023-11-12 00:14:00,994 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] [2023-11-12 00:14:00,994 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] [2023-11-12 00:14:00,994 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] [2023-11-12 00:14:00,995 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] [2023-11-12 00:14:00,996 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] [2023-11-12 00:14:00,997 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] [2023-11-12 00:14:00,998 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] [2023-11-12 00:14:00,998 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] [2023-11-12 00:14:00,998 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] [2023-11-12 00:14:01,111 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_7853ef89-41d7-40b2-9e31-42f08c35f3f3/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i[213319,213332] [2023-11-12 00:14:01,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:14:01,312 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:14:01,322 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:14:01,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:01 WrapperNode [2023-11-12 00:14:01,323 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:14:01,324 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:14:01,324 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:14:01,324 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:14:01,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:01" (1/1) ... [2023-11-12 00:14:01,467 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:01" (1/1) ... [2023-11-12 00:14:01,672 INFO L138 Inliner]: procedures = 269, calls = 1626, calls flagged for inlining = 116, calls inlined = 91, statements flattened = 3847 [2023-11-12 00:14:01,672 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:14:01,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:14:01,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:14:01,675 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:14:01,686 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:01" (1/1) ... [2023-11-12 00:14:01,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:01" (1/1) ... [2023-11-12 00:14:01,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:01" (1/1) ... [2023-11-12 00:14:01,753 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:01" (1/1) ... [2023-11-12 00:14:01,890 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:01" (1/1) ... [2023-11-12 00:14:01,923 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:01" (1/1) ... [2023-11-12 00:14:01,968 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:01" (1/1) ... [2023-11-12 00:14:01,992 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:01" (1/1) ... [2023-11-12 00:14:02,038 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:14:02,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:14:02,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:14:02,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:14:02,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:01" (1/1) ... [2023-11-12 00:14:02,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:14:02,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7853ef89-41d7-40b2-9e31-42f08c35f3f3/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:14:02,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7853ef89-41d7-40b2-9e31-42f08c35f3f3/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:14:02,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7853ef89-41d7-40b2-9e31-42f08c35f3f3/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:14:02,138 INFO L130 BoogieDeclarations]: Found specification of procedure free_hba [2023-11-12 00:14:02,139 INFO L138 BoogieDeclarations]: Found implementation of procedure free_hba [2023-11-12 00:14:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_submit_command [2023-11-12 00:14:02,139 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_submit_command [2023-11-12 00:14:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2023-11-12 00:14:02,140 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2023-11-12 00:14:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-12 00:14:02,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-12 00:14:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure cpqarray_remove_one [2023-11-12 00:14:02,140 INFO L138 BoogieDeclarations]: Found implementation of procedure cpqarray_remove_one [2023-11-12 00:14:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_cpqarray_hba [2023-11-12 00:14:02,141 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_cpqarray_hba [2023-11-12 00:14:02,141 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_intr_mask [2023-11-12 00:14:02,141 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_intr_mask [2023-11-12 00:14:02,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:14:02,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:14:02,141 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2023-11-12 00:14:02,142 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2023-11-12 00:14:02,142 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_completed [2023-11-12 00:14:02,142 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_completed [2023-11-12 00:14:02,142 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2023-11-12 00:14:02,142 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2023-11-12 00:14:02,142 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_intr_pending [2023-11-12 00:14:02,143 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_intr_pending [2023-11-12 00:14:02,143 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_intr_mask [2023-11-12 00:14:02,143 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_intr_mask [2023-11-12 00:14:02,143 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-11-12 00:14:02,143 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-11-12 00:14:02,143 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-12 00:14:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-12 00:14:02,144 INFO L130 BoogieDeclarations]: Found specification of procedure del_gendisk [2023-11-12 00:14:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure del_gendisk [2023-11-12 00:14:02,144 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 00:14:02,144 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 00:14:02,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 00:14:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 00:14:02,145 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-12 00:14:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-12 00:14:02,145 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2023-11-12 00:14:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2023-11-12 00:14:02,145 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-12 00:14:02,145 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-12 00:14:02,146 INFO L130 BoogieDeclarations]: Found specification of procedure start_io [2023-11-12 00:14:02,146 INFO L138 BoogieDeclarations]: Found implementation of procedure start_io [2023-11-12 00:14:02,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cpqarray_mutex [2023-11-12 00:14:02,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cpqarray_mutex [2023-11-12 00:14:02,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:14:02,146 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:14:02,146 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_completed [2023-11-12 00:14:02,147 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_completed [2023-11-12 00:14:02,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cpqarray_mutex [2023-11-12 00:14:02,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cpqarray_mutex [2023-11-12 00:14:02,147 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-12 00:14:02,147 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-12 00:14:02,147 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-12 00:14:02,147 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-12 00:14:02,148 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-12 00:14:02,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-12 00:14:02,148 INFO L130 BoogieDeclarations]: Found specification of procedure cmd_free [2023-11-12 00:14:02,148 INFO L138 BoogieDeclarations]: Found implementation of procedure cmd_free [2023-11-12 00:14:02,148 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2023-11-12 00:14:02,148 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2023-11-12 00:14:02,148 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 00:14:02,149 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 00:14:02,149 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_completed [2023-11-12 00:14:02,149 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_completed [2023-11-12 00:14:02,149 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-11-12 00:14:02,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-11-12 00:14:02,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:14:02,149 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-12 00:14:02,150 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_fifo_full [2023-11-12 00:14:02,150 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_fifo_full [2023-11-12 00:14:02,150 INFO L130 BoogieDeclarations]: Found specification of procedure release_io_mem [2023-11-12 00:14:02,150 INFO L138 BoogieDeclarations]: Found implementation of procedure release_io_mem [2023-11-12 00:14:02,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:14:02,150 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-12 00:14:02,150 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-12 00:14:02,151 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2023-11-12 00:14:02,151 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2023-11-12 00:14:02,151 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-12 00:14:02,151 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-12 00:14:02,151 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_intr_pending [2023-11-12 00:14:02,151 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_intr_pending [2023-11-12 00:14:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_logical_block_size [2023-11-12 00:14:02,152 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_logical_block_size [2023-11-12 00:14:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure sendcmd [2023-11-12 00:14:02,152 INFO L138 BoogieDeclarations]: Found implementation of procedure sendcmd [2023-11-12 00:14:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 00:14:02,152 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 00:14:02,152 INFO L130 BoogieDeclarations]: Found specification of procedure get_drv [2023-11-12 00:14:02,153 INFO L138 BoogieDeclarations]: Found implementation of procedure get_drv [2023-11-12 00:14:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-12 00:14:02,153 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-12 00:14:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:14:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:14:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-12 00:14:02,153 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-12 00:14:02,153 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:14:02,154 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:14:02,154 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-12 00:14:02,154 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-12 00:14:02,154 INFO L130 BoogieDeclarations]: Found specification of procedure ida_revalidate [2023-11-12 00:14:02,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_revalidate [2023-11-12 00:14:02,154 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 00:14:02,155 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 00:14:02,155 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-12 00:14:02,155 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-12 00:14:02,155 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_submit_command [2023-11-12 00:14:02,155 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_submit_command [2023-11-12 00:14:02,155 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-12 00:14:02,155 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-12 00:14:02,156 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-12 00:14:02,156 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-12 00:14:02,156 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-12 00:14:02,156 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-12 00:14:02,156 INFO L130 BoogieDeclarations]: Found specification of procedure cpqarray_register_ctlr [2023-11-12 00:14:02,156 INFO L138 BoogieDeclarations]: Found implementation of procedure cpqarray_register_ctlr [2023-11-12 00:14:02,156 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-12 00:14:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-12 00:14:02,157 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 00:14:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 00:14:02,157 INFO L130 BoogieDeclarations]: Found specification of procedure ida_ioctl [2023-11-12 00:14:02,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_ioctl [2023-11-12 00:14:02,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:14:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure cmd_alloc [2023-11-12 00:14:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure cmd_alloc [2023-11-12 00:14:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_fifo_full [2023-11-12 00:14:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_fifo_full [2023-11-12 00:14:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_intr_pending [2023-11-12 00:14:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_intr_pending [2023-11-12 00:14:02,158 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-12 00:14:02,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-12 00:14:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_fifo_full [2023-11-12 00:14:02,159 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_fifo_full [2023-11-12 00:14:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_submit_command [2023-11-12 00:14:02,159 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_submit_command [2023-11-12 00:14:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_intr_pending [2023-11-12 00:14:02,159 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_intr_pending [2023-11-12 00:14:02,159 INFO L130 BoogieDeclarations]: Found specification of procedure get_host [2023-11-12 00:14:02,159 INFO L138 BoogieDeclarations]: Found implementation of procedure get_host [2023-11-12 00:14:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_submit_command [2023-11-12 00:14:02,160 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_submit_command [2023-11-12 00:14:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 00:14:02,160 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 00:14:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2023-11-12 00:14:02,160 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2023-11-12 00:14:02,160 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-12 00:14:02,161 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-12 00:14:02,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:14:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-12 00:14:02,210 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-12 00:14:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2023-11-12 00:14:02,210 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2023-11-12 00:14:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure removeQ [2023-11-12 00:14:02,210 INFO L138 BoogieDeclarations]: Found implementation of procedure removeQ [2023-11-12 00:14:02,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:14:02,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:14:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:14:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:14:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-12 00:14:02,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-12 00:14:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:14:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:14:02,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:14:02,211 INFO L130 BoogieDeclarations]: Found specification of procedure smart1_intr_mask [2023-11-12 00:14:02,211 INFO L138 BoogieDeclarations]: Found implementation of procedure smart1_intr_mask [2023-11-12 00:14:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-12 00:14:02,212 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-12 00:14:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-12 00:14:02,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-12 00:14:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2023-11-12 00:14:02,212 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2023-11-12 00:14:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure smart2_intr_mask [2023-11-12 00:14:02,212 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2_intr_mask [2023-11-12 00:14:02,212 INFO L130 BoogieDeclarations]: Found specification of procedure getgeometry [2023-11-12 00:14:02,213 INFO L138 BoogieDeclarations]: Found implementation of procedure getgeometry [2023-11-12 00:14:02,213 INFO L130 BoogieDeclarations]: Found specification of procedure ida_getgeo [2023-11-12 00:14:02,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ida_getgeo [2023-11-12 00:14:02,213 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-12 00:14:02,213 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-12 00:14:02,213 INFO L130 BoogieDeclarations]: Found specification of procedure smart4_fifo_full [2023-11-12 00:14:02,213 INFO L138 BoogieDeclarations]: Found implementation of procedure smart4_fifo_full [2023-11-12 00:14:02,213 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2023-11-12 00:14:02,214 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2023-11-12 00:14:02,214 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-12 00:14:02,214 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-12 00:14:02,214 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-12 00:14:02,214 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-12 00:14:02,214 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-12 00:14:02,214 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-12 00:14:02,214 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-12 00:14:02,214 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-12 00:14:02,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:14:02,215 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-12 00:14:02,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-12 00:14:02,215 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2023-11-12 00:14:02,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2023-11-12 00:14:02,215 INFO L130 BoogieDeclarations]: Found specification of procedure smart2e_completed [2023-11-12 00:14:02,215 INFO L138 BoogieDeclarations]: Found implementation of procedure smart2e_completed [2023-11-12 00:14:02,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:14:02,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:14:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure addQ [2023-11-12 00:14:02,218 INFO L138 BoogieDeclarations]: Found implementation of procedure addQ [2023-11-12 00:14:02,218 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-12 00:14:02,218 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-12 00:14:02,943 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:14:02,948 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:14:07,690 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:14:09,610 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:14:09,610 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:14:09,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:14:09 BoogieIcfgContainer [2023-11-12 00:14:09,616 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:14:09,620 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:14:09,620 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:14:09,623 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:14:09,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:13:57" (1/3) ... [2023-11-12 00:14:09,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b8844d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:14:09, skipping insertion in model container [2023-11-12 00:14:09,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:14:01" (2/3) ... [2023-11-12 00:14:09,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b8844d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:14:09, skipping insertion in model container [2023-11-12 00:14:09,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:14:09" (3/3) ... [2023-11-12 00:14:09,627 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--cpqarray.ko-main.cil.out.i [2023-11-12 00:14:09,647 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:14:09,647 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:14:09,746 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:14:09,754 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;@3304dea7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:14:09,754 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:14:09,766 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) [2023-11-12 00:14:09,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 00:14:09,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:14:09,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:14:09,781 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:14:09,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:14:09,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1376318363, now seen corresponding path program 1 times [2023-11-12 00:14:09,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:14:09,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924684678] [2023-11-12 00:14:09,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:09,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:14:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:14:10,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:14:10,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:14:10,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924684678] [2023-11-12 00:14:10,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924684678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:14:10,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:14:10,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:14:10,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211002764] [2023-11-12 00:14:10,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:14:10,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:14:10,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:14:10,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:14:10,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:14:10,567 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) [2023-11-12 00:14:13,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:14:15,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:14:17,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:14:17,520 INFO L93 Difference]: Finished difference Result 2998 states and 4246 transitions. [2023-11-12 00:14:17,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:14:17,530 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 [2023-11-12 00:14:17,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:14:17,570 INFO L225 Difference]: With dead ends: 2998 [2023-11-12 00:14:17,570 INFO L226 Difference]: Without dead ends: 1894 [2023-11-12 00:14:17,590 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 [2023-11-12 00:14:17,593 INFO L413 NwaCegarLoop]: 1363 mSDtfsCounter, 1129 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-11-12 00:14:17,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 2700 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2023-11-12 00:14:17,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states. [2023-11-12 00:14:17,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1880. [2023-11-12 00:14:17,830 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) [2023-11-12 00:14:17,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1880 states to 1880 states and 2644 transitions. [2023-11-12 00:14:17,854 INFO L78 Accepts]: Start accepts. Automaton has 1880 states and 2644 transitions. Word has length 12 [2023-11-12 00:14:17,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:14:17,855 INFO L495 AbstractCegarLoop]: Abstraction has 1880 states and 2644 transitions. [2023-11-12 00:14:17,855 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) [2023-11-12 00:14:17,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1880 states and 2644 transitions. [2023-11-12 00:14:17,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 00:14:17,867 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:14:17,867 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] [2023-11-12 00:14:17,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:14:17,868 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:14:17,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:14:17,869 INFO L85 PathProgramCache]: Analyzing trace with hash -529690637, now seen corresponding path program 1 times [2023-11-12 00:14:17,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:14:17,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108997627] [2023-11-12 00:14:17,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:17,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:14:17,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:14:18,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:14:18,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:14:18,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108997627] [2023-11-12 00:14:18,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108997627] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:14:18,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:14:18,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:14:18,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519119261] [2023-11-12 00:14:18,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:14:18,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:14:18,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:14:18,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:14:18,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:14:18,162 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) [2023-11-12 00:14:23,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:14:23,495 INFO L93 Difference]: Finished difference Result 2299 states and 3168 transitions. [2023-11-12 00:14:23,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:14:23,496 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 [2023-11-12 00:14:23,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:14:23,517 INFO L225 Difference]: With dead ends: 2299 [2023-11-12 00:14:23,518 INFO L226 Difference]: Without dead ends: 2295 [2023-11-12 00:14:23,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:14:23,522 INFO L413 NwaCegarLoop]: 1443 mSDtfsCounter, 1176 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s 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, 5.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:14:23,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1176 Valid, 2187 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-11-12 00:14:23,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2023-11-12 00:14:23,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 2293. [2023-11-12 00:14:23,664 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) [2023-11-12 00:14:23,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2293 states to 2293 states and 3162 transitions. [2023-11-12 00:14:23,689 INFO L78 Accepts]: Start accepts. Automaton has 2293 states and 3162 transitions. Word has length 24 [2023-11-12 00:14:23,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:14:23,690 INFO L495 AbstractCegarLoop]: Abstraction has 2293 states and 3162 transitions. [2023-11-12 00:14:23,690 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) [2023-11-12 00:14:23,690 INFO L276 IsEmpty]: Start isEmpty. Operand 2293 states and 3162 transitions. [2023-11-12 00:14:23,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 00:14:23,694 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:14:23,694 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] [2023-11-12 00:14:23,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:14:23,695 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:14:23,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:14:23,706 INFO L85 PathProgramCache]: Analyzing trace with hash 758848293, now seen corresponding path program 1 times [2023-11-12 00:14:23,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:14:23,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244363302] [2023-11-12 00:14:23,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:23,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:14:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:14:23,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:14:23,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:14:23,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244363302] [2023-11-12 00:14:23,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244363302] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:14:23,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:14:23,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:14:23,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81921174] [2023-11-12 00:14:23,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:14:23,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:14:23,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:14:23,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:14:23,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:14:23,930 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) [2023-11-12 00:14:25,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:14:27,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:14:27,590 INFO L93 Difference]: Finished difference Result 2295 states and 3163 transitions. [2023-11-12 00:14:27,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:14:27,593 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 [2023-11-12 00:14:27,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:14:27,666 INFO L225 Difference]: With dead ends: 2295 [2023-11-12 00:14:27,666 INFO L226 Difference]: Without dead ends: 2292 [2023-11-12 00:14:27,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:14:27,671 INFO L413 NwaCegarLoop]: 1347 mSDtfsCounter, 1509 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:14:27,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1347 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-12 00:14:27,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2023-11-12 00:14:27,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2292. [2023-11-12 00:14:27,853 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) [2023-11-12 00:14:27,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 3160 transitions. [2023-11-12 00:14:27,875 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 3160 transitions. Word has length 25 [2023-11-12 00:14:27,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:14:27,875 INFO L495 AbstractCegarLoop]: Abstraction has 2292 states and 3160 transitions. [2023-11-12 00:14:27,875 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) [2023-11-12 00:14:27,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 3160 transitions. [2023-11-12 00:14:27,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-12 00:14:27,878 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:14:27,878 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] [2023-11-12 00:14:27,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:14:27,879 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:14:27,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:14:27,879 INFO L85 PathProgramCache]: Analyzing trace with hash 2048854326, now seen corresponding path program 1 times [2023-11-12 00:14:27,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:14:27,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484188636] [2023-11-12 00:14:27,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:27,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:14:27,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:14:28,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:14:28,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:14:28,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484188636] [2023-11-12 00:14:28,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484188636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:14:28,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:14:28,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:14:28,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451495438] [2023-11-12 00:14:28,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:14:28,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:14:28,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:14:28,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:14:28,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:14:28,177 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) [2023-11-12 00:14:30,366 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 [] [2023-11-12 00:14:32,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:14:32,533 INFO L93 Difference]: Finished difference Result 2294 states and 3161 transitions. [2023-11-12 00:14:32,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:14:32,536 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 [2023-11-12 00:14:32,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:14:32,558 INFO L225 Difference]: With dead ends: 2294 [2023-11-12 00:14:32,559 INFO L226 Difference]: Without dead ends: 2291 [2023-11-12 00:14:32,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:14:32,563 INFO L413 NwaCegarLoop]: 1345 mSDtfsCounter, 1506 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s 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, 4.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:14:32,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1345 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-11-12 00:14:32,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2023-11-12 00:14:32,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2291. [2023-11-12 00:14:32,772 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) [2023-11-12 00:14:32,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 3158 transitions. [2023-11-12 00:14:32,794 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 3158 transitions. Word has length 26 [2023-11-12 00:14:32,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:14:32,794 INFO L495 AbstractCegarLoop]: Abstraction has 2291 states and 3158 transitions. [2023-11-12 00:14:32,795 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) [2023-11-12 00:14:32,795 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 3158 transitions. [2023-11-12 00:14:32,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-12 00:14:32,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:14:32,799 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] [2023-11-12 00:14:32,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:14:32,800 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:14:32,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:14:32,801 INFO L85 PathProgramCache]: Analyzing trace with hash -910626744, now seen corresponding path program 1 times [2023-11-12 00:14:32,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:14:32,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725478588] [2023-11-12 00:14:32,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:32,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:14:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:14:33,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:14:33,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:14:33,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725478588] [2023-11-12 00:14:33,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725478588] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:14:33,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:14:33,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:14:33,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120189887] [2023-11-12 00:14:33,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:14:33,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:14:33,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:14:33,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:14:33,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:14:33,029 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) [2023-11-12 00:14:35,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:14:38,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:14:38,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:14:38,637 INFO L93 Difference]: Finished difference Result 2293 states and 3159 transitions. [2023-11-12 00:14:38,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:14:38,640 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 [2023-11-12 00:14:38,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:14:38,659 INFO L225 Difference]: With dead ends: 2293 [2023-11-12 00:14:38,659 INFO L226 Difference]: Without dead ends: 2258 [2023-11-12 00:14:38,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:14:38,662 INFO L413 NwaCegarLoop]: 1344 mSDtfsCounter, 1503 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:14:38,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1344 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2023-11-12 00:14:38,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2023-11-12 00:14:38,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 2252. [2023-11-12 00:14:38,855 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) [2023-11-12 00:14:38,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2252 states to 2252 states and 3098 transitions. [2023-11-12 00:14:38,871 INFO L78 Accepts]: Start accepts. Automaton has 2252 states and 3098 transitions. Word has length 27 [2023-11-12 00:14:38,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:14:38,871 INFO L495 AbstractCegarLoop]: Abstraction has 2252 states and 3098 transitions. [2023-11-12 00:14:38,871 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) [2023-11-12 00:14:38,872 INFO L276 IsEmpty]: Start isEmpty. Operand 2252 states and 3098 transitions. [2023-11-12 00:14:38,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-12 00:14:38,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:14:38,880 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] [2023-11-12 00:14:38,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:14:38,880 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:14:38,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:14:38,881 INFO L85 PathProgramCache]: Analyzing trace with hash 226604391, now seen corresponding path program 1 times [2023-11-12 00:14:38,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:14:38,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431967543] [2023-11-12 00:14:38,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:14:38,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:14:38,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:14:39,311 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:14:39,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:14:39,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431967543] [2023-11-12 00:14:39,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431967543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:14:39,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:14:39,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:14:39,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972588781] [2023-11-12 00:14:39,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:14:39,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:14:39,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:14:39,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:14:39,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:14:39,318 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) [2023-11-12 00:14:42,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:14:44,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:14:46,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:14:48,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []