./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--udlfb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab07efb6-296f-4264-ae7e-77e25226fea2/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab07efb6-296f-4264-ae7e-77e25226fea2/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab07efb6-296f-4264-ae7e-77e25226fea2/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab07efb6-296f-4264-ae7e-77e25226fea2/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--udlfb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab07efb6-296f-4264-ae7e-77e25226fea2/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab07efb6-296f-4264-ae7e-77e25226fea2/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 65d40b2043e7a83af3849efad1c4fa824e696aef038aa449d52dadf52dd97034 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:53:01,811 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:53:01,932 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab07efb6-296f-4264-ae7e-77e25226fea2/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:53:01,937 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:53:01,937 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:53:01,980 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:53:01,980 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:53:01,981 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:53:01,982 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:53:01,987 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:53:01,987 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:53:01,988 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:53:01,989 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:53:01,990 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:53:01,991 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:53:01,991 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:53:01,992 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:53:01,992 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:53:01,992 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:53:01,993 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:53:01,994 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:53:01,995 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:53:01,996 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:53:01,996 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:53:01,997 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:53:01,997 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:53:01,997 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:53:01,998 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:53:01,998 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:53:01,999 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:53:02,000 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:53:02,000 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:53:02,000 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:53:02,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:53:02,001 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:53:02,001 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:53:02,001 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:53:02,001 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:53:02,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:53:02,002 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:53:02,002 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:53:02,002 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:53:02,003 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_ab07efb6-296f-4264-ae7e-77e25226fea2/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab07efb6-296f-4264-ae7e-77e25226fea2/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65d40b2043e7a83af3849efad1c4fa824e696aef038aa449d52dadf52dd97034 [2023-11-19 04:53:02,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:53:02,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:53:02,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:53:02,366 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:53:02,367 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:53:02,368 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab07efb6-296f-4264-ae7e-77e25226fea2/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--udlfb.ko-entry_point.cil.out.i [2023-11-19 04:53:05,432 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:53:06,070 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:53:06,071 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab07efb6-296f-4264-ae7e-77e25226fea2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--udlfb.ko-entry_point.cil.out.i [2023-11-19 04:53:06,118 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab07efb6-296f-4264-ae7e-77e25226fea2/bin/utaipan-verify-t7M7D8N6sZ/data/43e75f6f8/87abf119e92a4526a1818ef5c41ce947/FLAG41f755d78 [2023-11-19 04:53:06,138 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab07efb6-296f-4264-ae7e-77e25226fea2/bin/utaipan-verify-t7M7D8N6sZ/data/43e75f6f8/87abf119e92a4526a1818ef5c41ce947 [2023-11-19 04:53:06,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:53:06,145 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:53:06,149 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:53:06,149 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:53:06,154 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:53:06,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:53:06" (1/1) ... [2023-11-19 04:53:06,156 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53e73e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:53:06, skipping insertion in model container [2023-11-19 04:53:06,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:53:06" (1/1) ... [2023-11-19 04:53:06,297 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:53:08,436 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_ab07efb6-296f-4264-ae7e-77e25226fea2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--udlfb.ko-entry_point.cil.out.i[222868,222881] [2023-11-19 04:53:08,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:53:08,783 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:53:08,955 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 *)"./arch/x86/include/asm/paravirt.h"), "i" (179), "i" (12UL)); [4067-4068] [2023-11-19 04:53:08,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c6;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c5\n .byte 772b-771b\n .short %c7\n.popsection\n": "=D" (__edi), "=S" (__esi), "=d" (__edx), "=c" (__ecx), "=a" (__eax): [paravirt_typenum] "i" (34UL), [paravirt_opptr] "i" (& pv_cpu_ops.read_tsc), [paravirt_clobber] "i" (511): "memory", "cc", "r8", "r9", "r10", "r11"); [4073-4076] [2023-11-19 04:53:08,958 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("661:\n\tprefetcht0 %P1\n662:\n.skip -(((6651f-6641f)-(662b-661b)) > 0) * ((6651f-6641f)-(662b-661b)),0x90\n663:\n.pushsection .altinstructions,\"a\"\n .long 661b - .\n .long 6641f - .\n .word ( 6*32+ 8)\n .byte 663b-661b\n .byte 6651f-6641f\n .byte 663b-662b\n.popsection\n.pushsection .altinstr_replacement, \"ax\"\n6641:\n\tprefetchw %P1\n6651:\n\t.popsection": : "i" (0), "m" (*((char const *)x))); [4084-4085] [2023-11-19 04:53:08,959 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; addl %1,%0": "+m" (v->counter): "ir" (i)); [4108] [2023-11-19 04:53:08,959 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; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [4116-4117] [2023-11-19 04:53:08,960 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; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [4128-4129] [2023-11-19 04:53:08,961 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; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [4132-4133] [2023-11-19 04:53:08,961 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; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [4136-4137] [2023-11-19 04:53:08,961 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; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [4140-4141] [2023-11-19 04:53:09,002 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)front) [4941] [2023-11-19 04:53:09,002 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)back) [4942] [2023-11-19 04:53:09,115 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/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--32_7a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/5262/dscv_tempdir/dscv/ri/32_7a/drivers/video/fbdev/udlfb.c"), "i" (1932), "i" (12UL)); [6665-6666] [2023-11-19 04:53:09,116 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/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--32_7a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/5262/dscv_tempdir/dscv/ri/32_7a/drivers/video/fbdev/udlfb.c"), "i" (1950), "i" (12UL)); [6689-6690] [2023-11-19 04:53:09,145 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_ab07efb6-296f-4264-ae7e-77e25226fea2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--udlfb.ko-entry_point.cil.out.i[222868,222881] [2023-11-19 04:53:09,175 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:53:09,372 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:53:09,372 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:53:09,380 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:53:09,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:53:09 WrapperNode [2023-11-19 04:53:09,381 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:53:09,382 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:53:09,382 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:53:09,383 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:53:09,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:53:09" (1/1) ... [2023-11-19 04:53:09,484 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:53:09" (1/1) ... [2023-11-19 04:53:09,629 INFO L138 Inliner]: procedures = 319, calls = 1724, calls flagged for inlining = 116, calls inlined = 108, statements flattened = 4196 [2023-11-19 04:53:09,630 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:53:09,630 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:53:09,631 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:53:09,631 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:53:09,641 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:53:09" (1/1) ... [2023-11-19 04:53:09,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:53:09" (1/1) ... [2023-11-19 04:53:09,665 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:53:09" (1/1) ... [2023-11-19 04:53:09,665 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:53:09" (1/1) ... [2023-11-19 04:53:09,821 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:53:09" (1/1) ... [2023-11-19 04:53:09,854 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:53:09" (1/1) ... [2023-11-19 04:53:09,884 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:53:09" (1/1) ... [2023-11-19 04:53:09,905 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:53:09" (1/1) ... [2023-11-19 04:53:09,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:53:09,938 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:53:09,938 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:53:09,938 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:53:09,939 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:53:09" (1/1) ... [2023-11-19 04:53:09,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:53:09,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab07efb6-296f-4264-ae7e-77e25226fea2/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:53:09,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab07efb6-296f-4264-ae7e-77e25226fea2/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:53:10,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab07efb6-296f-4264-ae7e-77e25226fea2/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:53:10,024 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-19 04:53:10,024 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-19 04:53:10,024 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_fillrect [2023-11-19 04:53:10,024 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_fillrect [2023-11-19 04:53:10,024 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-19 04:53:10,025 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-19 04:53:10,026 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_submit_urb [2023-11-19 04:53:10,026 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_submit_urb [2023-11-19 04:53:10,026 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_urb_completion [2023-11-19 04:53:10,026 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_urb_completion [2023-11-19 04:53:10,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:53:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:53:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:53:10,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:53:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:53:10,028 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:53:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_mmap [2023-11-19 04:53:10,030 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_mmap [2023-11-19 04:53:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer_work [2023-11-19 04:53:10,031 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer_work [2023-11-19 04:53:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_unlock [2023-11-19 04:53:10,032 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_unlock [2023-11-19 04:53:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:53:10,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:53:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_check_var [2023-11-19 04:53:10,032 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_check_var [2023-11-19 04:53:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-11-19 04:53:10,033 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-11-19 04:53:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_is_valid_mode [2023-11-19 04:53:10,033 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_is_valid_mode [2023-11-19 04:53:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_lfsr16 [2023-11-19 04:53:10,033 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_lfsr16 [2023-11-19 04:53:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modelist [2023-11-19 04:53:10,034 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modelist [2023-11-19 04:53:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-11-19 04:53:10,034 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-11-19 04:53:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 04:53:10,034 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 04:53:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_setcolreg [2023-11-19 04:53:10,034 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_setcolreg [2023-11-19 04:53:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 04:53:10,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 04:53:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2023-11-19 04:53:10,035 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2023-11-19 04:53:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-19 04:53:10,035 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-19 04:53:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:53:10,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:53:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_release [2023-11-19 04:53:10,037 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_release [2023-11-19 04:53:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:53:10,038 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:53:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_get_urb [2023-11-19 04:53:10,038 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_get_urb [2023-11-19 04:53:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_video_mode [2023-11-19 04:53:10,038 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_video_mode [2023-11-19 04:53:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 04:53:10,039 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 04:53:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 04:53:10,039 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 04:53:10,040 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_blank [2023-11-19 04:53:10,041 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_blank [2023-11-19 04:53:10,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:53:10,041 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 04:53:10,042 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 04:53:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 04:53:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure get_cycles [2023-11-19 04:53:10,042 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cycles [2023-11-19 04:53:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure up [2023-11-19 04:53:10,042 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2023-11-19 04:53:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:53:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_copyarea [2023-11-19 04:53:10,043 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_copyarea [2023-11-19 04:53:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-19 04:53:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 04:53:10,044 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 04:53:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure fb_add_videomode [2023-11-19 04:53:10,044 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_add_videomode [2023-11-19 04:53:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:53:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2023-11-19 04:53:10,045 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2023-11-19 04:53:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:53:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure fb_edid_to_monspecs [2023-11-19 04:53:10,045 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_edid_to_monspecs [2023-11-19 04:53:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:53:10,045 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:53:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-11-19 04:53:10,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-11-19 04:53:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 04:53:10,046 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 04:53:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 04:53:10,046 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 04:53:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-19 04:53:10,047 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-19 04:53:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_setup_modes [2023-11-19 04:53:10,047 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_setup_modes [2023-11-19 04:53:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-19 04:53:10,047 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-19 04:53:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-19 04:53:10,048 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-19 04:53:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:53:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_lock [2023-11-19 04:53:10,050 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_lock [2023-11-19 04:53:10,050 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-19 04:53:10,051 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-19 04:53:10,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:53:10,051 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2023-11-19 04:53:10,051 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2023-11-19 04:53:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:53:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_fb_info [2023-11-19 04:53:10,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_fb_info [2023-11-19 04:53:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_ioctl [2023-11-19 04:53:10,052 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_ioctl [2023-11-19 04:53:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer [2023-11-19 04:53:10,052 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer [2023-11-19 04:53:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 04:53:10,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 04:53:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_var_color_format [2023-11-19 04:53:10,053 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_var_color_format [2023-11-19 04:53:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-19 04:53:10,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-19 04:53:10,054 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 04:53:10,054 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 04:53:10,054 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-11-19 04:53:10,054 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-11-19 04:53:10,055 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-19 04:53:10,055 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-19 04:53:10,055 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_handle_damage [2023-11-19 04:53:10,055 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_handle_damage [2023-11-19 04:53:10,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:53:10,055 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_render_hline [2023-11-19 04:53:10,055 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_render_hline [2023-11-19 04:53:10,056 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_usb_disconnect [2023-11-19 04:53:10,056 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_usb_disconnect [2023-11-19 04:53:10,058 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-19 04:53:10,060 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-19 04:53:10,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:53:10,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:53:10,061 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_release_urb_work [2023-11-19 04:53:10,062 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_release_urb_work [2023-11-19 04:53:10,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 04:53:10,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 04:53:10,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:53:10,064 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_blanking [2023-11-19 04:53:10,070 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_blanking [2023-11-19 04:53:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 04:53:10,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 04:53:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_16 [2023-11-19 04:53:10,071 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_16 [2023-11-19 04:53:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:53:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_imageblit [2023-11-19 04:53:10,071 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_imageblit [2023-11-19 04:53:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:53:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:53:10,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:53:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_open [2023-11-19 04:53:10,072 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_open [2023-11-19 04:53:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register [2023-11-19 04:53:10,072 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register [2023-11-19 04:53:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-19 04:53:10,073 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-19 04:53:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-19 04:53:10,073 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-19 04:53:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_fb_info [2023-11-19 04:53:10,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_fb_info [2023-11-19 04:53:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-11-19 04:53:10,073 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-11-19 04:53:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_init_framebuffer_work [2023-11-19 04:53:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_init_framebuffer_work [2023-11-19 04:53:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-19 04:53:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-19 04:53:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 04:53:10,074 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 04:53:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_set_par [2023-11-19 04:53:10,075 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_set_par [2023-11-19 04:53:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-11-19 04:53:10,075 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-11-19 04:53:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:53:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-19 04:53:10,075 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-19 04:53:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:53:10,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:53:10,847 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:53:10,854 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:53:11,196 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:53:23,172 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:53:24,759 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:53:24,759 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:53:24,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:53:24 BoogieIcfgContainer [2023-11-19 04:53:24,774 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:53:24,777 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:53:24,777 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:53:24,781 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:53:24,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:53:06" (1/3) ... [2023-11-19 04:53:24,784 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f6f43e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:53:24, skipping insertion in model container [2023-11-19 04:53:24,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:53:09" (2/3) ... [2023-11-19 04:53:24,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f6f43e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:53:24, skipping insertion in model container [2023-11-19 04:53:24,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:53:24" (3/3) ... [2023-11-19 04:53:24,789 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--udlfb.ko-entry_point.cil.out.i [2023-11-19 04:53:24,815 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:53:24,815 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:53:24,928 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:53:24,938 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;@7887ad4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:53:24,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:53:24,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 1106 states, 686 states have (on average 1.3425655976676385) internal successors, (921), 717 states have internal predecessors, (921), 337 states have call successors, (337), 82 states have call predecessors, (337), 81 states have return successors, (329), 324 states have call predecessors, (329), 329 states have call successors, (329) [2023-11-19 04:53:25,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2023-11-19 04:53:25,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:53:25,004 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:53:25,005 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:53:25,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:53:25,013 INFO L85 PathProgramCache]: Analyzing trace with hash 831556967, now seen corresponding path program 1 times [2023-11-19 04:53:25,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:53:25,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625169142] [2023-11-19 04:53:25,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:53:25,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:53:25,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:53:26,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1500 trivial. 0 not checked. [2023-11-19 04:53:26,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:53:26,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625169142] [2023-11-19 04:53:26,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625169142] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:53:26,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:53:26,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:53:26,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77333312] [2023-11-19 04:53:26,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:53:26,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:53:26,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:53:26,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:53:26,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:53:26,920 INFO L87 Difference]: Start difference. First operand has 1106 states, 686 states have (on average 1.3425655976676385) internal successors, (921), 717 states have internal predecessors, (921), 337 states have call successors, (337), 82 states have call predecessors, (337), 81 states have return successors, (329), 324 states have call predecessors, (329), 329 states have call successors, (329) Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-19 04:53:28,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:53:30,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:53:34,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:53:35,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:53:35,656 INFO L93 Difference]: Finished difference Result 3170 states and 4598 transitions. [2023-11-19 04:53:35,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:53:35,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 301 [2023-11-19 04:53:35,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:53:35,721 INFO L225 Difference]: With dead ends: 3170 [2023-11-19 04:53:35,721 INFO L226 Difference]: Without dead ends: 2099 [2023-11-19 04:53:35,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:53:35,740 INFO L413 NwaCegarLoop]: 1417 mSDtfsCounter, 1449 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 2819 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:53:35,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1449 Valid, 2819 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 343 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2023-11-19 04:53:35,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2099 states. [2023-11-19 04:53:35,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2099 to 2095. [2023-11-19 04:53:35,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2095 states, 1318 states have (on average 1.330804248861912) internal successors, (1754), 1354 states have internal predecessors, (1754), 617 states have call successors, (617), 160 states have call predecessors, (617), 159 states have return successors, (610), 600 states have call predecessors, (610), 610 states have call successors, (610) [2023-11-19 04:53:36,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2095 states to 2095 states and 2981 transitions. [2023-11-19 04:53:36,019 INFO L78 Accepts]: Start accepts. Automaton has 2095 states and 2981 transitions. Word has length 301 [2023-11-19 04:53:36,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:53:36,025 INFO L495 AbstractCegarLoop]: Abstraction has 2095 states and 2981 transitions. [2023-11-19 04:53:36,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2023-11-19 04:53:36,026 INFO L276 IsEmpty]: Start isEmpty. Operand 2095 states and 2981 transitions. [2023-11-19 04:53:36,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2023-11-19 04:53:36,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:53:36,041 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:53:36,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:53:36,041 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:53:36,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:53:36,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1581487189, now seen corresponding path program 1 times [2023-11-19 04:53:36,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:53:36,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007364755] [2023-11-19 04:53:36,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:53:36,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:53:36,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:53:36,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1500 trivial. 0 not checked. [2023-11-19 04:53:36,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:53:36,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007364755] [2023-11-19 04:53:36,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007364755] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:53:36,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:53:36,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:53:36,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991592930] [2023-11-19 04:53:36,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:53:36,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:53:36,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:53:36,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:53:36,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:53:36,975 INFO L87 Difference]: Start difference. First operand 2095 states and 2981 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-19 04:53:39,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:53:41,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:53:44,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:53:46,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:53:47,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:53:47,647 INFO L93 Difference]: Finished difference Result 6094 states and 8653 transitions. [2023-11-19 04:53:47,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:53:47,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 313 [2023-11-19 04:53:47,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:53:47,687 INFO L225 Difference]: With dead ends: 6094 [2023-11-19 04:53:47,687 INFO L226 Difference]: Without dead ends: 4060 [2023-11-19 04:53:47,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:53:47,700 INFO L413 NwaCegarLoop]: 1388 mSDtfsCounter, 1481 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 2681 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:53:47,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1481 Valid, 2681 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 337 Invalid, 4 Unknown, 0 Unchecked, 10.4s Time] [2023-11-19 04:53:47,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4060 states. [2023-11-19 04:53:47,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4060 to 4045. [2023-11-19 04:53:47,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4045 states, 2547 states have (on average 1.3301923831959168) internal successors, (3388), 2613 states have internal predecessors, (3388), 1180 states have call successors, (1180), 318 states have call predecessors, (1180), 317 states have return successors, (1173), 1153 states have call predecessors, (1173), 1173 states have call successors, (1173) [2023-11-19 04:53:48,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4045 states to 4045 states and 5741 transitions. [2023-11-19 04:53:48,032 INFO L78 Accepts]: Start accepts. Automaton has 4045 states and 5741 transitions. Word has length 313 [2023-11-19 04:53:48,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:53:48,033 INFO L495 AbstractCegarLoop]: Abstraction has 4045 states and 5741 transitions. [2023-11-19 04:53:48,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-19 04:53:48,034 INFO L276 IsEmpty]: Start isEmpty. Operand 4045 states and 5741 transitions. [2023-11-19 04:53:48,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2023-11-19 04:53:48,041 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:53:48,042 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 13, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:53:48,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:53:48,043 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:53:48,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:53:48,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1048299559, now seen corresponding path program 1 times [2023-11-19 04:53:48,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:53:48,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363437317] [2023-11-19 04:53:48,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:53:48,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:53:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:53:48,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1620 trivial. 0 not checked. [2023-11-19 04:53:48,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:53:48,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363437317] [2023-11-19 04:53:48,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363437317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:53:48,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:53:48,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:53:48,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442757229] [2023-11-19 04:53:48,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:53:48,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:53:48,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:53:48,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:53:48,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:53:48,834 INFO L87 Difference]: Start difference. First operand 4045 states and 5741 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-19 04:53:50,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:53:53,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:53:54,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:53:54,265 INFO L93 Difference]: Finished difference Result 4047 states and 5742 transitions. [2023-11-19 04:53:54,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:53:54,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 316 [2023-11-19 04:53:54,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:53:54,310 INFO L225 Difference]: With dead ends: 4047 [2023-11-19 04:53:54,310 INFO L226 Difference]: Without dead ends: 4044 [2023-11-19 04:53:54,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:53:54,317 INFO L413 NwaCegarLoop]: 1384 mSDtfsCounter, 1481 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:53:54,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1481 Valid, 1384 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 2 Unknown, 0 Unchecked, 5.1s Time] [2023-11-19 04:53:54,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4044 states. [2023-11-19 04:53:54,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4044 to 4044. [2023-11-19 04:53:54,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4044 states, 2547 states have (on average 1.3297997644287396) internal successors, (3387), 2612 states have internal predecessors, (3387), 1179 states have call successors, (1179), 318 states have call predecessors, (1179), 317 states have return successors, (1173), 1153 states have call predecessors, (1173), 1173 states have call successors, (1173) [2023-11-19 04:53:54,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4044 states to 4044 states and 5739 transitions. [2023-11-19 04:53:54,672 INFO L78 Accepts]: Start accepts. Automaton has 4044 states and 5739 transitions. Word has length 316 [2023-11-19 04:53:54,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:53:54,674 INFO L495 AbstractCegarLoop]: Abstraction has 4044 states and 5739 transitions. [2023-11-19 04:53:54,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-11-19 04:53:54,675 INFO L276 IsEmpty]: Start isEmpty. Operand 4044 states and 5739 transitions. [2023-11-19 04:53:54,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2023-11-19 04:53:54,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:53:54,686 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 13, 13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:53:54,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:53:54,686 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:53:54,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:53:54,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1861965698, now seen corresponding path program 1 times [2023-11-19 04:53:54,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:53:54,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306916534] [2023-11-19 04:53:54,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:53:54,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:53:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat