./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-43_2a-drivers--usb--host--xhci-hcd.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--xhci-hcd.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh --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 287569c75dbe54888f4531ef4c1c96bda4038fb42dd660982b6a0e08e8201809 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:33:09,179 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:33:09,251 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 17:33:09,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:33:09,258 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:33:09,285 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:33:09,285 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:33:09,286 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:33:09,287 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:33:09,287 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:33:09,288 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:33:09,288 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:33:09,289 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:33:09,289 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:33:09,290 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:33:09,290 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:33:09,291 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:33:09,291 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:33:09,292 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:33:09,293 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:33:09,293 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:33:09,294 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:33:09,294 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:33:09,295 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:33:09,295 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:33:09,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:33:09,296 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:33:09,297 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:33:09,297 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:33:09,298 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:33:09,298 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:33:09,299 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:33:09,299 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:33:09,300 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:33:09,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:33:09,301 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:33:09,301 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:33:09,301 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:33:09,301 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:33:09,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:33:09,302 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:33:09,302 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:33:09,303 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:33:09,303 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:33:09,303 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_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 287569c75dbe54888f4531ef4c1c96bda4038fb42dd660982b6a0e08e8201809 [2023-12-02 17:33:09,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:33:09,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:33:09,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:33:09,595 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:33:09,596 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:33:09,597 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--xhci-hcd.ko-entry_point.cil.out.i [2023-12-02 17:33:12,354 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:33:12,975 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:33:12,976 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--xhci-hcd.ko-entry_point.cil.out.i [2023-12-02 17:33:13,039 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/data/5b0d53e61/49f07aa2873444f0a7331e25226c190e/FLAG96083b76b [2023-12-02 17:33:13,053 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/data/5b0d53e61/49f07aa2873444f0a7331e25226c190e [2023-12-02 17:33:13,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:33:13,057 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:33:13,058 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:33:13,058 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:33:13,063 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:33:13,063 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:33:13" (1/1) ... [2023-12-02 17:33:13,064 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@747343b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:13, skipping insertion in model container [2023-12-02 17:33:13,064 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:33:13" (1/1) ... [2023-12-02 17:33:13,414 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:33:19,331 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_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--xhci-hcd.ko-entry_point.cil.out.i[896483,896496] [2023-12-02 17:33:19,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:33:19,455 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:33:19,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5091] [2023-12-02 17:33:19,533 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5093] [2023-12-02 17:33:19,534 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 %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5103] [2023-12-02 17:33:19,534 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)); [5110] [2023-12-02 17:33:19,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrl %1,%0": "=r" (r): "rm" (x), "0" (-1)); [5118] [2023-12-02 17:33:19,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrq %1,%q0": "+r" (bitpos): "rm" (x)); [5127] [2023-12-02 17:33:19,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("661:\n\tcall __sw_hweight32\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 ( 4*32+23)\n .byte 663b-661b\n .byte 6651f-6641f\n .byte 663b-662b\n.popsection\n.pushsection .altinstr_replacement, \"ax\"\n6641:\n\t.byte 0xf3,0x40,0x0f,0xb8,0xc7\n6651:\n\t.popsection": "=a" (res): "D" (w)); [5136] [2023-12-02 17:33:19,539 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" (831), "i" (12UL)); [5327-5328] [2023-12-02 17:33:19,539 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" (43UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5333-5335] [2023-12-02 17:33:19,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [5361] [2023-12-02 17:33:19,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5364] [2023-12-02 17:33:19,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5367] [2023-12-02 17:33:19,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5370] [2023-12-02 17:33:19,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [5387] [2023-12-02 17:33:19,542 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [5390] [2023-12-02 17:33:19,542 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (val)); [5392] [2023-12-02 17:33:19,542 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [5397] [2023-12-02 17:33:19,543 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [5400] [2023-12-02 17:33:19,543 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [5402] [2023-12-02 17:33:19,543 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [5407] [2023-12-02 17:33:19,544 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [5410] [2023-12-02 17:33:19,544 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [5412] [2023-12-02 17:33:19,544 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [5417] [2023-12-02 17:33:19,545 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [5420] [2023-12-02 17:33:19,545 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (val)); [5422] [2023-12-02 17:33:19,545 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [5440] [2023-12-02 17:33:19,545 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [5443] [2023-12-02 17:33:19,546 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (- val)); [5445] [2023-12-02 17:33:19,546 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [5450] [2023-12-02 17:33:19,546 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [5453] [2023-12-02 17:33:19,546 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [5455] [2023-12-02 17:33:19,547 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [5460] [2023-12-02 17:33:19,547 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [5463] [2023-12-02 17:33:19,547 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [5465] [2023-12-02 17:33:19,547 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [5470] [2023-12-02 17:33:19,548 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [5473] [2023-12-02 17:33:19,548 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (- val)); [5475] [2023-12-02 17:33:19,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5628] [2023-12-02 17:33:19,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5635] [2023-12-02 17:33:19,551 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5655] [2023-12-02 17:33:19,551 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5662] [2023-12-02 17:33:19,801 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/9542/dscv_tempdir/dscv/ri/43_2a/drivers/usb/host/xhci.c"), "i" (4987), "i" (12UL)); [12430-12431] [2023-12-02 17:33:19,925 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/9542/dscv_tempdir/dscv/ri/43_2a/drivers/usb/host/xhci-mem.c"), "i" (1324), "i" (12UL)); [15793-15794] [2023-12-02 17:33:19,931 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/9542/dscv_tempdir/dscv/ri/43_2a/drivers/usb/host/xhci-mem.c"), "i" (1479), "i" (12UL)); [15980-15981] [2023-12-02 17:33:19,979 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 %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [17526-17527] [2023-12-02 17:33:19,996 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [18113] [2023-12-02 17:33:20,100 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [20949] [2023-12-02 17:33:20,108 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [21204] [2023-12-02 17:33:20,113 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [21364] [2023-12-02 17:33:20,190 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [22514-22515] [2023-12-02 17:33:20,329 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_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--xhci-hcd.ko-entry_point.cil.out.i[896483,896496] [2023-12-02 17:33:20,365 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:33:20,582 WARN L675 CHandler]: The function strstr is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:33:20,582 WARN L675 CHandler]: The function __bad_unaligned_access_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:33:20,582 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:33:20,591 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:33:20,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:20 WrapperNode [2023-12-02 17:33:20,591 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:33:20,592 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:33:20,593 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:33:20,593 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:33:20,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:20" (1/1) ... [2023-12-02 17:33:20,811 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:20" (1/1) ... [2023-12-02 17:33:21,363 INFO L138 Inliner]: procedures = 614, calls = 13352, calls flagged for inlining = 262, calls inlined = 222, statements flattened = 25660 [2023-12-02 17:33:21,364 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:33:21,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:33:21,365 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:33:21,365 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:33:21,376 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:20" (1/1) ... [2023-12-02 17:33:21,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:20" (1/1) ... [2023-12-02 17:33:21,532 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:20" (1/1) ... [2023-12-02 17:33:21,533 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:20" (1/1) ... [2023-12-02 17:33:22,051 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:20" (1/1) ... [2023-12-02 17:33:22,147 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:20" (1/1) ... [2023-12-02 17:33:22,300 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:20" (1/1) ... [2023-12-02 17:33:22,496 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:20" (1/1) ... [2023-12-02 17:33:22,659 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:33:22,660 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:33:22,660 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:33:22,661 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:33:22,661 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:20" (1/1) ... [2023-12-02 17:33:22,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:33:22,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:33:22,706 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:33:22,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:33:22,763 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_check_bandwidth [2023-12-02 17:33:22,764 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_check_bandwidth [2023-12-02 17:33:22,764 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_check_usb2_port_capability [2023-12-02 17:33:22,764 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_check_usb2_port_capability [2023-12-02 17:33:22,764 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_stream_id_to_ring [2023-12-02 17:33:22,764 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_stream_id_to_ring [2023-12-02 17:33:22,764 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_queue_bulk_tx [2023-12-02 17:33:22,764 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_queue_bulk_tx [2023-12-02 17:33:22,764 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_urb_free_priv [2023-12-02 17:33:22,765 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_urb_free_priv [2023-12-02 17:33:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_change_max_exit_latency [2023-12-02 17:33:22,765 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_change_max_exit_latency [2023-12-02 17:33:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_ring_device [2023-12-02 17:33:22,765 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_ring_device [2023-12-02 17:33:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure trace_xhci_dbg_ring_expansion [2023-12-02 17:33:22,766 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_xhci_dbg_ring_expansion [2023-12-02 17:33:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_transfer [2023-12-02 17:33:22,766 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_transfer [2023-12-02 17:33:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_endpoint_zero [2023-12-02 17:33:22,766 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_endpoint_zero [2023-12-02 17:33:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-12-02 17:33:22,766 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-12-02 17:33:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-12-02 17:33:22,767 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-12-02 17:33:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_urb_enqueue [2023-12-02 17:33:22,767 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_urb_enqueue [2023-12-02 17:33:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_enable_usb3_lpm_timeout [2023-12-02 17:33:22,767 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_enable_usb3_lpm_timeout [2023-12-02 17:33:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_parse_exponent_interval [2023-12-02 17:33:22,767 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_parse_exponent_interval [2023-12-02 17:33:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_debug_segment [2023-12-02 17:33:22,768 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_debug_segment [2023-12-02 17:33:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_all_ports_seen_u0 [2023-12-02 17:33:22,768 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_all_ports_seen_u0 [2023-12-02 17:33:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure last_trb_on_last_seg [2023-12-02 17:33:22,768 INFO L138 BoogieDeclarations]: Found implementation of procedure last_trb_on_last_seg [2023-12-02 17:33:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-12-02 17:33:22,769 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-12-02 17:33:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-12-02 17:33:22,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-12-02 17:33:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 17:33:22,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 17:33:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_free_streams [2023-12-02 17:33:22,769 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_free_streams [2023-12-02 17:33:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_trb_virt_to_dma [2023-12-02 17:33:22,770 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_trb_virt_to_dma [2023-12-02 17:33:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_ring_expansion [2023-12-02 17:33:22,770 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_ring_expansion [2023-12-02 17:33:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-12-02 17:33:22,770 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-12-02 17:33:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_address_device [2023-12-02 17:33:22,770 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_address_device [2023-12-02 17:33:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-12-02 17:33:22,770 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-12-02 17:33:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_alloc_segments_for_ring [2023-12-02 17:33:22,771 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_alloc_segments_for_ring [2023-12-02 17:33:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_get_ports [2023-12-02 17:33:22,771 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_get_ports [2023-12-02 17:33:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-12-02 17:33:22,771 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-12-02 17:33:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure trace_xhci_dbg_quirks [2023-12-02 17:33:22,771 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_xhci_dbg_quirks [2023-12-02 17:33:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure td_to_noop [2023-12-02 17:33:22,771 INFO L138 BoogieDeclarations]: Found implementation of procedure td_to_noop [2023-12-02 17:33:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2023-12-02 17:33:22,771 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2023-12-02 17:33:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_max_exit_latency [2023-12-02 17:33:22,772 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_max_exit_latency [2023-12-02 17:33:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_triad_to_transfer_ring [2023-12-02 17:33:22,772 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_triad_to_transfer_ring [2023-12-02 17:33:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ss_max_streams [2023-12-02 17:33:22,772 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ss_max_streams [2023-12-02 17:33:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_to_hcd [2023-12-02 17:33:22,772 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_to_hcd [2023-12-02 17:33:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_get_slot_ctx [2023-12-02 17:33:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_get_slot_ctx [2023-12-02 17:33:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_ring_free [2023-12-02 17:33:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_ring_free [2023-12-02 17:33:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_dbg_ctx [2023-12-02 17:33:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_dbg_ctx [2023-12-02 17:33:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure trace_seq_printf [2023-12-02 17:33:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_seq_printf [2023-12-02 17:33:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_link_segments [2023-12-02 17:33:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_link_segments [2023-12-02 17:33:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure trace_xhci_dbg_init [2023-12-02 17:33:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_xhci_dbg_init [2023-12-02 17:33:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure trace_xhci_dbg_cancel_urb___0 [2023-12-02 17:33:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_xhci_dbg_cancel_urb___0 [2023-12-02 17:33:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2023-12-02 17:33:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2023-12-02 17:33:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure radix_tree_lookup [2023-12-02 17:33:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure radix_tree_lookup [2023-12-02 17:33:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_alloc_command [2023-12-02 17:33:22,775 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_alloc_command [2023-12-02 17:33:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_port_state_to_neutral [2023-12-02 17:33:22,775 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_port_state_to_neutral [2023-12-02 17:33:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_msi_irq [2023-12-02 17:33:22,775 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_msi_irq [2023-12-02 17:33:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-12-02 17:33:22,775 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-12-02 17:33:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure trace_xhci_dbg_quirks___1 [2023-12-02 17:33:22,775 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_xhci_dbg_quirks___1 [2023-12-02 17:33:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure trace_xhci_dbg_quirks___0 [2023-12-02 17:33:22,775 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_xhci_dbg_quirks___0 [2023-12-02 17:33:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2023-12-02 17:33:22,776 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2023-12-02 17:33:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_get_endpoint_address [2023-12-02 17:33:22,776 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_get_endpoint_address [2023-12-02 17:33:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 17:33:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_is_async_ep [2023-12-02 17:33:22,776 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_is_async_ep [2023-12-02 17:33:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_queue_new_dequeue_state [2023-12-02 17:33:22,776 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_queue_new_dequeue_state [2023-12-02 17:33:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_zero_in_ctx [2023-12-02 17:33:22,776 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_zero_in_ctx [2023-12-02 17:33:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-12-02 17:33:22,777 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-12-02 17:33:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-12-02 17:33:22,777 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-12-02 17:33:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2023-12-02 17:33:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_get_endpoint_index [2023-12-02 17:33:22,777 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_get_endpoint_index [2023-12-02 17:33:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_parse_frame_interval [2023-12-02 17:33:22,777 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_parse_frame_interval [2023-12-02 17:33:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-12-02 17:33:22,777 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-12-02 17:33:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure trace_xhci_dbg_context_change___0 [2023-12-02 17:33:22,777 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_xhci_dbg_context_change___0 [2023-12-02 17:33:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure trb_in_td [2023-12-02 17:33:22,778 INFO L138 BoogieDeclarations]: Found implementation of procedure trb_in_td [2023-12-02 17:33:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_bus_suspend [2023-12-02 17:33:22,778 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_bus_suspend [2023-12-02 17:33:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_xhci [2023-12-02 17:33:22,778 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_xhci [2023-12-02 17:33:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 17:33:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure trace_raw_output_prep [2023-12-02 17:33:22,778 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_raw_output_prep [2023-12-02 17:33:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_get_ss_bw_consumed [2023-12-02 17:33:22,778 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_get_ss_bw_consumed [2023-12-02 17:33:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure trace_xhci_dbg_reset_ep [2023-12-02 17:33:22,780 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_xhci_dbg_reset_ep [2023-12-02 17:33:22,780 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_update_timeout_for_endpoint [2023-12-02 17:33:22,780 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_update_timeout_for_endpoint [2023-12-02 17:33:22,780 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_configure_endpoint [2023-12-02 17:33:22,780 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_configure_endpoint [2023-12-02 17:33:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 17:33:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_get_largest_overhead [2023-12-02 17:33:22,781 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_get_largest_overhead [2023-12-02 17:33:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure trace_event_raw_init [2023-12-02 17:33:22,781 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_event_raw_init [2023-12-02 17:33:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2023-12-02 17:33:22,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2023-12-02 17:33:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 17:33:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_enable_device [2023-12-02 17:33:22,781 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_enable_device [2023-12-02 17:33:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_6 [2023-12-02 17:33:22,782 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_6 [2023-12-02 17:33:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure queue_trb [2023-12-02 17:33:22,782 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_trb [2023-12-02 17:33:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_find_new_dequeue_state [2023-12-02 17:33:22,782 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_find_new_dequeue_state [2023-12-02 17:33:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 17:33:22,782 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 17:33:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure trace_xhci_dbg_address [2023-12-02 17:33:22,782 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_xhci_dbg_address [2023-12-02 17:33:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_3 [2023-12-02 17:33:22,783 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_3 [2023-12-02 17:33:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-12-02 17:33:22,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-12-02 17:33:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_set_usb2_hardware_lpm [2023-12-02 17:33:22,783 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_set_usb2_hardware_lpm [2023-12-02 17:33:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure trace_define_field [2023-12-02 17:33:22,783 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_define_field [2023-12-02 17:33:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_urb_dequeue [2023-12-02 17:33:22,783 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_urb_dequeue [2023-12-02 17:33:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-12-02 17:33:22,783 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-12-02 17:33:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_check_args [2023-12-02 17:33:22,784 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_check_args [2023-12-02 17:33:22,784 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_ring_cmd_db [2023-12-02 17:33:22,784 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_ring_cmd_db [2023-12-02 17:33:22,784 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-12-02 17:33:22,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-12-02 17:33:22,784 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2023-12-02 17:33:22,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2023-12-02 17:33:22,784 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2023-12-02 17:33:22,784 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2023-12-02 17:33:22,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-12-02 17:33:22,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-12-02 17:33:22,784 INFO L130 BoogieDeclarations]: Found specification of procedure trace_xhci_dbg_init___0 [2023-12-02 17:33:22,785 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_xhci_dbg_init___0 [2023-12-02 17:33:22,785 INFO L130 BoogieDeclarations]: Found specification of procedure last_trb [2023-12-02 17:33:22,785 INFO L138 BoogieDeclarations]: Found implementation of procedure last_trb [2023-12-02 17:33:22,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 17:33:22,785 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_ring [2023-12-02 17:33:22,785 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_ring [2023-12-02 17:33:22,785 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_6 [2023-12-02 17:33:22,785 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_6 [2023-12-02 17:33:22,785 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_poll_rh_status [2023-12-02 17:33:22,785 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_poll_rh_status [2023-12-02 17:33:22,785 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-12-02 17:33:22,786 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-12-02 17:33:22,786 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_ring_ep_doorbell [2023-12-02 17:33:22,786 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_ring_ep_doorbell [2023-12-02 17:33:22,786 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-12-02 17:33:22,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-12-02 17:33:22,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:33:22,786 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_6 [2023-12-02 17:33:22,786 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_6 [2023-12-02 17:33:22,786 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_debug_ring [2023-12-02 17:33:22,786 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_debug_ring [2023-12-02 17:33:22,786 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-12-02 17:33:22,786 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-12-02 17:33:22,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 17:33:22,787 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-12-02 17:33:22,787 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 17:33:22,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 17:33:22,787 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_quiesce [2023-12-02 17:33:22,787 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_quiesce [2023-12-02 17:33:22,787 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-12-02 17:33:22,787 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-12-02 17:33:22,787 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2023-12-02 17:33:22,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2023-12-02 17:33:22,787 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_free_stream_info [2023-12-02 17:33:22,787 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_free_stream_info [2023-12-02 17:33:22,788 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_setup_input_ctx_for_config_ep [2023-12-02 17:33:22,788 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_setup_input_ctx_for_config_ep [2023-12-02 17:33:22,788 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acpi_power_manageable [2023-12-02 17:33:22,788 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acpi_power_manageable [2023-12-02 17:33:22,788 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2023-12-02 17:33:22,788 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2023-12-02 17:33:22,788 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-12-02 17:33:22,788 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-12-02 17:33:22,788 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_find_raw_port_number [2023-12-02 17:33:22,788 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_find_raw_port_number [2023-12-02 17:33:22,788 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_stop_watchdog_timer_in_irq [2023-12-02 17:33:22,788 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_stop_watchdog_timer_in_irq [2023-12-02 17:33:22,789 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2023-12-02 17:33:22,789 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2023-12-02 17:33:22,789 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_find_slot_id_by_port [2023-12-02 17:33:22,789 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_find_slot_id_by_port [2023-12-02 17:33:22,789 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_free_host_resources [2023-12-02 17:33:22,789 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_free_host_resources [2023-12-02 17:33:22,789 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-12-02 17:33:22,789 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-12-02 17:33:22,789 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_endpoint_reset [2023-12-02 17:33:22,789 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_endpoint_reset [2023-12-02 17:33:22,789 INFO L130 BoogieDeclarations]: Found specification of procedure trace_xhci_dbg_cancel_urb [2023-12-02 17:33:22,789 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_xhci_dbg_cancel_urb [2023-12-02 17:33:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_remove_segment_mapping [2023-12-02 17:33:22,790 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_remove_segment_mapping [2023-12-02 17:33:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_link_trb_quirk [2023-12-02 17:33:22,790 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_link_trb_quirk [2023-12-02 17:33:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_print_ir_set [2023-12-02 17:33:22,790 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_print_ir_set [2023-12-02 17:33:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-12-02 17:33:22,790 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-12-02 17:33:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-12-02 17:33:22,790 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-12-02 17:33:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_setup_device [2023-12-02 17:33:22,791 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_setup_device [2023-12-02 17:33:22,791 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-12-02 17:33:22,791 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-12-02 17:33:22,791 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_disable_usb3_lpm_timeout [2023-12-02 17:33:22,791 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_disable_usb3_lpm_timeout [2023-12-02 17:33:22,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:33:22,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:33:22,791 INFO L130 BoogieDeclarations]: Found specification of procedure dbg_rsvd64 [2023-12-02 17:33:22,791 INFO L138 BoogieDeclarations]: Found implementation of procedure dbg_rsvd64 [2023-12-02 17:33:22,791 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_last_valid_endpoint [2023-12-02 17:33:22,791 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_last_valid_endpoint [2023-12-02 17:33:22,791 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_irq [2023-12-02 17:33:22,792 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_irq [2023-12-02 17:33:22,792 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_only_stop_hcd [2023-12-02 17:33:22,792 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_only_stop_hcd [2023-12-02 17:33:22,792 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_get_frame [2023-12-02 17:33:22,792 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_get_frame [2023-12-02 17:33:22,792 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-12-02 17:33:22,792 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-12-02 17:33:22,792 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_segment_alloc [2023-12-02 17:33:22,792 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_segment_alloc [2023-12-02 17:33:22,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 17:33:22,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 17:33:22,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 17:33:22,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 17:33:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure queue_command [2023-12-02 17:33:22,793 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_command [2023-12-02 17:33:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_free_virt_device [2023-12-02 17:33:22,793 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_free_virt_device [2023-12-02 17:33:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure trace_event_reg [2023-12-02 17:33:22,793 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_event_reg [2023-12-02 17:33:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_alloc_streams [2023-12-02 17:33:22,793 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_alloc_streams [2023-12-02 17:33:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_is_primary_hcd [2023-12-02 17:33:22,793 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_is_primary_hcd [2023-12-02 17:33:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2023-12-02 17:33:22,793 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2023-12-02 17:33:22,794 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_dbg_cmd_ptrs [2023-12-02 17:33:22,794 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_dbg_cmd_ptrs [2023-12-02 17:33:22,794 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-12-02 17:33:22,794 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-12-02 17:33:22,794 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_index [2023-12-02 17:33:22,794 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_index [2023-12-02 17:33:22,794 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_dbg_ring_ptrs [2023-12-02 17:33:22,794 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_dbg_ring_ptrs [2023-12-02 17:33:22,794 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-12-02 17:33:22,794 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-12-02 17:33:22,794 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_hub_control [2023-12-02 17:33:22,794 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_hub_control [2023-12-02 17:33:22,795 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-12-02 17:33:22,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-12-02 17:33:22,795 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_dma_to_transfer_ring [2023-12-02 17:33:22,795 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_dma_to_transfer_ring [2023-12-02 17:33:22,795 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2023-12-02 17:33:22,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2023-12-02 17:33:22,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-12-02 17:33:22,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-12-02 17:33:22,795 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_v1_0_td_remainder [2023-12-02 17:33:22,795 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_v1_0_td_remainder [2023-12-02 17:33:22,795 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_set_link_state [2023-12-02 17:33:22,795 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_set_link_state [2023-12-02 17:33:22,795 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2023-12-02 17:33:22,796 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2023-12-02 17:33:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 17:33:22,796 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 17:33:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_type [2023-12-02 17:33:22,796 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_type [2023-12-02 17:33:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_drop_endpoint [2023-12-02 17:33:22,796 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_drop_endpoint [2023-12-02 17:33:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_handshake [2023-12-02 17:33:22,796 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_handshake [2023-12-02 17:33:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_free_or_cache_endpoint_ring [2023-12-02 17:33:22,796 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_free_or_cache_endpoint_ring [2023-12-02 17:33:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_reset [2023-12-02 17:33:22,797 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_reset [2023-12-02 17:33:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 17:33:22,797 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 17:33:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_shutdown [2023-12-02 17:33:22,797 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_shutdown [2023-12-02 17:33:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acpi_set_power_state [2023-12-02 17:33:22,797 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acpi_set_power_state [2023-12-02 17:33:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2023-12-02 17:33:22,797 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2023-12-02 17:33:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure trace_handle_return [2023-12-02 17:33:22,797 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_handle_return [2023-12-02 17:33:22,797 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-12-02 17:33:22,797 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-12-02 17:33:22,798 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_3 [2023-12-02 17:33:22,798 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_3 [2023-12-02 17:33:22,798 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_requires_manual_halt_cleanup [2023-12-02 17:33:22,798 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_requires_manual_halt_cleanup [2023-12-02 17:33:22,798 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_giveback_urb [2023-12-02 17:33:22,798 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_giveback_urb [2023-12-02 17:33:22,798 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_stop [2023-12-02 17:33:22,798 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_stop [2023-12-02 17:33:22,798 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_microframes_to_exponent [2023-12-02 17:33:22,798 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_microframes_to_exponent [2023-12-02 17:33:22,798 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2023-12-02 17:33:22,799 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2023-12-02 17:33:22,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2023-12-02 17:33:22,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2023-12-02 17:33:22,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 17:33:22,799 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-12-02 17:33:22,799 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-12-02 17:33:22,799 INFO L130 BoogieDeclarations]: Found specification of procedure bus_to_hcd [2023-12-02 17:33:22,799 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_to_hcd [2023-12-02 17:33:22,799 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_free_container_ctx [2023-12-02 17:33:22,799 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_free_container_ctx [2023-12-02 17:33:22,799 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_write_64 [2023-12-02 17:33:22,799 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_write_64 [2023-12-02 17:33:22,800 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_giveback_urb_in_irq [2023-12-02 17:33:22,800 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_giveback_urb_in_irq [2023-12-02 17:33:22,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 17:33:22,800 INFO L130 BoogieDeclarations]: Found specification of procedure usb_amd_quirk_pll_enable [2023-12-02 17:33:22,800 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_amd_quirk_pll_enable [2023-12-02 17:33:22,800 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_complete_del_and_free_cmd [2023-12-02 17:33:22,800 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_complete_del_and_free_cmd [2023-12-02 17:33:22,800 INFO L130 BoogieDeclarations]: Found specification of procedure finish_td [2023-12-02 17:33:22,800 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_td [2023-12-02 17:33:22,800 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-12-02 17:33:22,800 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-12-02 17:33:22,800 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_halt [2023-12-02 17:33:22,801 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_halt [2023-12-02 17:33:22,801 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_alloc_container_ctx [2023-12-02 17:33:22,801 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_alloc_container_ctx [2023-12-02 17:33:22,801 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_handle_stopped_cmd_ring [2023-12-02 17:33:22,801 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_handle_stopped_cmd_ring [2023-12-02 17:33:22,801 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_queue_slot_control [2023-12-02 17:33:22,801 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_queue_slot_control [2023-12-02 17:33:22,801 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_common_hub_descriptor [2023-12-02 17:33:22,801 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_common_hub_descriptor [2023-12-02 17:33:22,801 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_cleanup_msix [2023-12-02 17:33:22,801 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_cleanup_msix [2023-12-02 17:33:22,801 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_update_stream_segment_mapping [2023-12-02 17:33:22,801 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_update_stream_segment_mapping [2023-12-02 17:33:22,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-12-02 17:33:22,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-12-02 17:33:22,802 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_free_tt_info [2023-12-02 17:33:22,802 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_free_tt_info [2023-12-02 17:33:22,802 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_isoc [2023-12-02 17:33:22,802 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_isoc [2023-12-02 17:33:22,802 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace [2023-12-02 17:33:22,802 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace [2023-12-02 17:33:22,802 INFO L130 BoogieDeclarations]: Found specification of procedure next_trb [2023-12-02 17:33:22,802 INFO L138 BoogieDeclarations]: Found implementation of procedure next_trb [2023-12-02 17:33:22,802 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_drop_ep_from_interval_table [2023-12-02 17:33:22,802 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_drop_ep_from_interval_table [2023-12-02 17:33:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_queue_stop_endpoint [2023-12-02 17:33:22,803 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_queue_stop_endpoint [2023-12-02 17:33:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_mem_cleanup [2023-12-02 17:33:22,803 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_mem_cleanup [2023-12-02 17:33:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 17:33:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_ring_alloc [2023-12-02 17:33:22,803 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_ring_alloc [2023-12-02 17:33:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_stop_device [2023-12-02 17:33:22,803 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_stop_device [2023-12-02 17:33:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure check_trb_math [2023-12-02 17:33:22,803 INFO L138 BoogieDeclarations]: Found implementation of procedure check_trb_math [2023-12-02 17:33:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-12-02 17:33:22,803 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-12-02 17:33:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure trace_xhci_address_ctx [2023-12-02 17:33:22,804 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_xhci_address_ctx [2023-12-02 17:33:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-12-02 17:33:22,804 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-12-02 17:33:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_get_input_control_ctx [2023-12-02 17:33:22,804 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_get_input_control_ctx [2023-12-02 17:33:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_reset_bandwidth [2023-12-02 17:33:22,804 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_reset_bandwidth [2023-12-02 17:33:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure trace_xhci_dbg_reset_ep___0 [2023-12-02 17:33:22,804 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_xhci_dbg_reset_ep___0 [2023-12-02 17:33:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_bus_resume [2023-12-02 17:33:22,804 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_bus_resume [2023-12-02 17:33:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_free_irq [2023-12-02 17:33:22,805 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_free_irq [2023-12-02 17:33:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_free_device_endpoint_resources [2023-12-02 17:33:22,805 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_free_device_endpoint_resources [2023-12-02 17:33:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-12-02 17:33:22,805 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-12-02 17:33:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_service_interval_to_ns [2023-12-02 17:33:22,805 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_service_interval_to_ns [2023-12-02 17:33:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_is_vendor_info_code [2023-12-02 17:33:22,805 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_is_vendor_info_code [2023-12-02 17:33:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-12-02 17:33:22,805 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-12-02 17:33:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_td_remainder [2023-12-02 17:33:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_td_remainder [2023-12-02 17:33:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-12-02 17:33:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-12-02 17:33:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_hub_status_data [2023-12-02 17:33:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_hub_status_data [2023-12-02 17:33:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure handle_cmd_completion [2023-12-02 17:33:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_cmd_completion [2023-12-02 17:33:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-12-02 17:33:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-12-02 17:33:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_6 [2023-12-02 17:33:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_6 [2023-12-02 17:33:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_get_ep_ctx [2023-12-02 17:33:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_get_ep_ctx [2023-12-02 17:33:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_cleanup_halted_endpoint [2023-12-02 17:33:22,807 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_cleanup_halted_endpoint [2023-12-02 17:33:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_discover_or_reset_device [2023-12-02 17:33:22,807 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_discover_or_reset_device [2023-12-02 17:33:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure trace_xhci_dbg_context_change [2023-12-02 17:33:22,807 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_xhci_dbg_context_change [2023-12-02 17:33:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_count_num_new_endpoints [2023-12-02 17:33:22,807 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_count_num_new_endpoints [2023-12-02 17:33:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_urb_to_transfer_ring___0 [2023-12-02 17:33:22,807 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_urb_to_transfer_ring___0 [2023-12-02 17:33:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-12-02 17:33:22,807 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-12-02 17:33:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_check_bw_drop_ep_streams [2023-12-02 17:33:22,808 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_check_bw_drop_ep_streams [2023-12-02 17:33:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2023-12-02 17:33:22,808 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2023-12-02 17:33:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 17:33:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_endpoint_copy [2023-12-02 17:33:22,808 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_endpoint_copy [2023-12-02 17:33:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_free_dev [2023-12-02 17:33:22,808 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_free_dev [2023-12-02 17:33:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_3 [2023-12-02 17:33:22,808 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_3 [2023-12-02 17:33:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-12-02 17:33:22,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-12-02 17:33:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-12-02 17:33:22,809 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-12-02 17:33:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 17:33:22,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 17:33:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_clear_endpoint_bw_info [2023-12-02 17:33:22,809 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_clear_endpoint_bw_info [2023-12-02 17:33:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_initialize_ring_info [2023-12-02 17:33:22,809 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_initialize_ring_info [2023-12-02 17:33:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_alloc_dev [2023-12-02 17:33:22,809 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_alloc_dev [2023-12-02 17:33:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_add_endpoint [2023-12-02 17:33:22,809 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_add_endpoint [2023-12-02 17:33:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_queue_configure_endpoint [2023-12-02 17:33:22,810 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_queue_configure_endpoint [2023-12-02 17:33:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_segment_free [2023-12-02 17:33:22,810 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_segment_free [2023-12-02 17:33:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_add_ep_to_interval_table [2023-12-02 17:33:22,810 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_add_ep_to_interval_table [2023-12-02 17:33:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_update_hub_device [2023-12-02 17:33:22,810 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_update_hub_device [2023-12-02 17:33:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wakeup_notification [2023-12-02 17:33:22,810 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wakeup_notification [2023-12-02 17:33:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-12-02 17:33:22,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-12-02 17:33:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_print_trb_offsets [2023-12-02 17:33:22,811 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_print_trb_offsets [2023-12-02 17:33:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure count_isoc_trbs_needed [2023-12-02 17:33:22,811 INFO L138 BoogieDeclarations]: Found implementation of procedure count_isoc_trbs_needed [2023-12-02 17:33:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_read_64 [2023-12-02 17:33:22,811 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_read_64 [2023-12-02 17:33:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2023-12-02 17:33:22,811 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2023-12-02 17:33:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_control [2023-12-02 17:33:22,811 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_control [2023-12-02 17:33:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-12-02 17:33:22,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-12-02 17:33:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_3 [2023-12-02 17:33:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_3 [2023-12-02 17:33:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2023-12-02 17:33:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2023-12-02 17:33:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_update_tt_active_eps [2023-12-02 17:33:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_update_tt_active_eps [2023-12-02 17:33:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure static_key_false [2023-12-02 17:33:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure static_key_false [2023-12-02 17:33:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure usb_urb_dir_in [2023-12-02 17:33:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_urb_dir_in [2023-12-02 17:33:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_dbg_trace [2023-12-02 17:33:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_dbg_trace [2023-12-02 17:33:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure trace_xhci_dbg_ring_expansion___0 [2023-12-02 17:33:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_xhci_dbg_ring_expansion___0 [2023-12-02 17:33:22,813 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_slot_copy [2023-12-02 17:33:22,813 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_slot_copy [2023-12-02 17:33:22,813 INFO L130 BoogieDeclarations]: Found specification of procedure giveback_first_trb [2023-12-02 17:33:22,813 INFO L138 BoogieDeclarations]: Found implementation of procedure giveback_first_trb [2023-12-02 17:33:22,813 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_parse_microframe_interval [2023-12-02 17:33:22,813 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_parse_microframe_interval [2023-12-02 17:33:22,813 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_test_and_clear_bit [2023-12-02 17:33:22,813 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_test_and_clear_bit [2023-12-02 17:33:22,813 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-12-02 17:33:22,813 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-12-02 17:33:22,813 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_is_sync_in_ep [2023-12-02 17:33:22,813 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_is_sync_in_ep [2023-12-02 17:33:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure ring_doorbell_for_active_rings [2023-12-02 17:33:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ring_doorbell_for_active_rings [2023-12-02 17:33:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_get_endpoint_flag [2023-12-02 17:33:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_get_endpoint_flag [2023-12-02 17:33:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-12-02 17:33:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-12-02 17:33:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_run [2023-12-02 17:33:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_run [2023-12-02 17:33:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-12-02 17:33:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-12-02 17:33:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2023-12-02 17:33:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2023-12-02 17:33:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_free_command [2023-12-02 17:33:22,815 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_free_command [2023-12-02 17:33:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-12-02 17:33:22,815 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-12-02 17:33:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:33:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_cleanup_command_queue [2023-12-02 17:33:22,815 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_cleanup_command_queue [2023-12-02 17:33:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-12-02 17:33:22,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-12-02 17:33:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure inc_deq [2023-12-02 17:33:22,815 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_deq [2023-12-02 17:33:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_get_timeout_no_hub_lpm [2023-12-02 17:33:22,815 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_get_timeout_no_hub_lpm [2023-12-02 17:33:22,816 INFO L130 BoogieDeclarations]: Found specification of procedure xhci_update_device [2023-12-02 17:33:22,816 INFO L138 BoogieDeclarations]: Found implementation of procedure xhci_update_device [2023-12-02 17:33:22,816 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2023-12-02 17:33:22,816 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2023-12-02 17:33:22,816 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-12-02 17:33:22,816 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-12-02 17:33:24,973 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:33:24,979 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:33:30,809 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 17:33:55,838 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:34:16,636 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:34:16,637 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 17:34:16,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:34:16 BoogieIcfgContainer [2023-12-02 17:34:16,641 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:34:16,644 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:34:16,644 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:34:16,648 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:34:16,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:33:13" (1/3) ... [2023-12-02 17:34:16,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71177627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:34:16, skipping insertion in model container [2023-12-02 17:34:16,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:33:20" (2/3) ... [2023-12-02 17:34:16,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71177627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:34:16, skipping insertion in model container [2023-12-02 17:34:16,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:34:16" (3/3) ... [2023-12-02 17:34:16,650 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--xhci-hcd.ko-entry_point.cil.out.i [2023-12-02 17:34:16,673 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:34:16,673 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 17:34:16,858 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:34:16,865 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;@6e782301, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:34:16,865 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 17:34:16,893 INFO L276 IsEmpty]: Start isEmpty. Operand has 7299 states, 4548 states have (on average 1.322339489885664) internal successors, (6014), 4693 states have internal predecessors, (6014), 2471 states have call successors, (2471), 279 states have call predecessors, (2471), 278 states have return successors, (2455), 2427 states have call predecessors, (2455), 2455 states have call successors, (2455) [2023-12-02 17:34:16,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-02 17:34:16,928 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:34:16,930 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:34:16,930 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:34:16,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:34:16,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1698064803, now seen corresponding path program 1 times [2023-12-02 17:34:16,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:34:16,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143653603] [2023-12-02 17:34:16,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:34:16,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:34:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:34:19,033 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-12-02 17:34:19,034 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:34:19,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143653603] [2023-12-02 17:34:19,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143653603] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:34:19,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:34:19,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:34:19,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865130948] [2023-12-02 17:34:19,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:34:19,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:34:19,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:34:19,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:34:19,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:34:19,104 INFO L87 Difference]: Start difference. First operand has 7299 states, 4548 states have (on average 1.322339489885664) internal successors, (6014), 4693 states have internal predecessors, (6014), 2471 states have call successors, (2471), 279 states have call predecessors, (2471), 278 states have return successors, (2455), 2427 states have call predecessors, (2455), 2455 states have call successors, (2455) Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-02 17:34:21,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:34:23,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:34:28,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:34:30,672 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 [] [2023-12-02 17:34:39,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:34:39,214 INFO L93 Difference]: Finished difference Result 18159 states and 27544 transitions. [2023-12-02 17:34:39,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:34:39,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 219 [2023-12-02 17:34:39,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:34:39,354 INFO L225 Difference]: With dead ends: 18159 [2023-12-02 17:34:39,354 INFO L226 Difference]: Without dead ends: 10856 [2023-12-02 17:34:39,451 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 [2023-12-02 17:34:39,455 INFO L413 NwaCegarLoop]: 10429 mSDtfsCounter, 5324 mSDsluCounter, 9870 mSDsCounter, 0 mSdLazyCounter, 1786 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5324 SdHoareTripleChecker+Valid, 20299 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1786 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:34:39,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5324 Valid, 20299 Invalid, 1792 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1786 Invalid, 4 Unknown, 0 Unchecked, 19.2s Time] [2023-12-02 17:34:39,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10856 states. [2023-12-02 17:34:40,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10856 to 10852. [2023-12-02 17:34:40,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10852 states, 6781 states have (on average 1.3169149093054122) internal successors, (8930), 6990 states have internal predecessors, (8930), 3603 states have call successors, (3603), 468 states have call predecessors, (3603), 467 states have return successors, (3602), 3552 states have call predecessors, (3602), 3602 states have call successors, (3602) [2023-12-02 17:34:40,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10852 states to 10852 states and 16135 transitions. [2023-12-02 17:34:40,514 INFO L78 Accepts]: Start accepts. Automaton has 10852 states and 16135 transitions. Word has length 219 [2023-12-02 17:34:40,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:34:40,516 INFO L495 AbstractCegarLoop]: Abstraction has 10852 states and 16135 transitions. [2023-12-02 17:34:40,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-02 17:34:40,517 INFO L276 IsEmpty]: Start isEmpty. Operand 10852 states and 16135 transitions. [2023-12-02 17:34:40,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-12-02 17:34:40,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:34:40,537 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:34:40,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 17:34:40,537 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:34:40,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:34:40,538 INFO L85 PathProgramCache]: Analyzing trace with hash -2049342004, now seen corresponding path program 1 times [2023-12-02 17:34:40,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:34:40,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443622807] [2023-12-02 17:34:40,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:34:40,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:34:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:34:42,470 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2023-12-02 17:34:42,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:34:42,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443622807] [2023-12-02 17:34:42,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443622807] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:34:42,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:34:42,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 17:34:42,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400342676] [2023-12-02 17:34:42,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:34:42,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:34:42,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:34:42,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:34:42,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:34:42,476 INFO L87 Difference]: Start difference. First operand 10852 states and 16135 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-02 17:34:44,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:34:46,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:34:50,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:34:58,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:35:06,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:35:06,060 INFO L93 Difference]: Finished difference Result 21680 states and 32224 transitions. [2023-12-02 17:35:06,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:35:06,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 269 [2023-12-02 17:35:06,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:35:06,129 INFO L225 Difference]: With dead ends: 21680 [2023-12-02 17:35:06,129 INFO L226 Difference]: Without dead ends: 10867 [2023-12-02 17:35:06,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:35:06,176 INFO L413 NwaCegarLoop]: 10135 mSDtfsCounter, 16831 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 4865 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16831 SdHoareTripleChecker+Valid, 10157 SdHoareTripleChecker+Invalid, 5687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4865 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2023-12-02 17:35:06,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16831 Valid, 10157 Invalid, 5687 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4865 Valid, 819 Invalid, 3 Unknown, 0 Unchecked, 22.7s Time] [2023-12-02 17:35:06,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10867 states. [2023-12-02 17:35:06,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10867 to 10867. [2023-12-02 17:35:06,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10867 states, 6790 states have (on average 1.3160530191458026) internal successors, (8936), 6997 states have internal predecessors, (8936), 3604 states have call successors, (3604), 473 states have call predecessors, (3604), 472 states have return successors, (3603), 3555 states have call predecessors, (3603), 3603 states have call successors, (3603) [2023-12-02 17:35:07,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10867 states to 10867 states and 16143 transitions. [2023-12-02 17:35:07,008 INFO L78 Accepts]: Start accepts. Automaton has 10867 states and 16143 transitions. Word has length 269 [2023-12-02 17:35:07,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:35:07,009 INFO L495 AbstractCegarLoop]: Abstraction has 10867 states and 16143 transitions. [2023-12-02 17:35:07,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-02 17:35:07,011 INFO L276 IsEmpty]: Start isEmpty. Operand 10867 states and 16143 transitions. [2023-12-02 17:35:07,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2023-12-02 17:35:07,019 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:35:07,019 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:35:07,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 17:35:07,019 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:35:07,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:35:07,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1372931708, now seen corresponding path program 1 times [2023-12-02 17:35:07,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:35:07,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145429440] [2023-12-02 17:35:07,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:35:07,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:35:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:35:08,441 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2023-12-02 17:35:08,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:35:08,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145429440] [2023-12-02 17:35:08,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145429440] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:35:08,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:35:08,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 17:35:08,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591283850] [2023-12-02 17:35:08,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:35:08,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:35:08,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:35:08,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:35:08,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:35:08,444 INFO L87 Difference]: Start difference. First operand 10867 states and 16143 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-02 17:35:10,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:35:12,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:35:15,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:35:20,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:35:20,059 INFO L93 Difference]: Finished difference Result 21676 states and 32208 transitions. [2023-12-02 17:35:20,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:35:20,060 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 267 [2023-12-02 17:35:20,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:35:20,129 INFO L225 Difference]: With dead ends: 21676 [2023-12-02 17:35:20,129 INFO L226 Difference]: Without dead ends: 10865 [2023-12-02 17:35:20,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:35:20,164 INFO L413 NwaCegarLoop]: 10132 mSDtfsCounter, 10890 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10890 SdHoareTripleChecker+Valid, 10154 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:35:20,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10890 Valid, 10154 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 819 Invalid, 3 Unknown, 0 Unchecked, 11.1s Time] [2023-12-02 17:35:20,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10865 states. [2023-12-02 17:35:20,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10865 to 10865. [2023-12-02 17:35:20,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10865 states, 6790 states have (on average 1.315758468335788) internal successors, (8934), 6995 states have internal predecessors, (8934), 3602 states have call successors, (3602), 473 states have call predecessors, (3602), 472 states have return successors, (3601), 3555 states have call predecessors, (3601), 3601 states have call successors, (3601) [2023-12-02 17:35:20,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10865 states to 10865 states and 16137 transitions. [2023-12-02 17:35:20,805 INFO L78 Accepts]: Start accepts. Automaton has 10865 states and 16137 transitions. Word has length 267 [2023-12-02 17:35:20,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:35:20,806 INFO L495 AbstractCegarLoop]: Abstraction has 10865 states and 16137 transitions. [2023-12-02 17:35:20,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-02 17:35:20,807 INFO L276 IsEmpty]: Start isEmpty. Operand 10865 states and 16137 transitions. [2023-12-02 17:35:20,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-12-02 17:35:20,815 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:35:20,816 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:35:20,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 17:35:20,816 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:35:20,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:35:20,816 INFO L85 PathProgramCache]: Analyzing trace with hash 986933424, now seen corresponding path program 1 times [2023-12-02 17:35:20,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:35:20,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935015518] [2023-12-02 17:35:20,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:35:20,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:35:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:35:21,923 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2023-12-02 17:35:21,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:35:21,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935015518] [2023-12-02 17:35:21,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935015518] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:35:21,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:35:21,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 17:35:21,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191945100] [2023-12-02 17:35:21,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:35:21,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:35:21,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:35:21,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:35:21,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:35:21,927 INFO L87 Difference]: Start difference. First operand 10865 states and 16137 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-02 17:35:24,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:35:26,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:35:28,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:35:35,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:35:37,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:35:37,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:35:37,267 INFO L93 Difference]: Finished difference Result 21672 states and 32196 transitions. [2023-12-02 17:35:37,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:35:37,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 270 [2023-12-02 17:35:37,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:35:37,315 INFO L225 Difference]: With dead ends: 21672 [2023-12-02 17:35:37,315 INFO L226 Difference]: Without dead ends: 10863 [2023-12-02 17:35:37,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:35:37,353 INFO L413 NwaCegarLoop]: 10129 mSDtfsCounter, 10887 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10887 SdHoareTripleChecker+Valid, 10151 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2023-12-02 17:35:37,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10887 Valid, 10151 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 819 Invalid, 3 Unknown, 0 Unchecked, 14.6s Time] [2023-12-02 17:35:37,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10863 states. [2023-12-02 17:35:38,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10863 to 10863. [2023-12-02 17:35:38,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10863 states, 6790 states have (on average 1.3154639175257732) internal successors, (8932), 6993 states have internal predecessors, (8932), 3600 states have call successors, (3600), 473 states have call predecessors, (3600), 472 states have return successors, (3599), 3555 states have call predecessors, (3599), 3599 states have call successors, (3599) [2023-12-02 17:35:38,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10863 states to 10863 states and 16131 transitions. [2023-12-02 17:35:38,334 INFO L78 Accepts]: Start accepts. Automaton has 10863 states and 16131 transitions. Word has length 270 [2023-12-02 17:35:38,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:35:38,335 INFO L495 AbstractCegarLoop]: Abstraction has 10863 states and 16131 transitions. [2023-12-02 17:35:38,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-02 17:35:38,336 INFO L276 IsEmpty]: Start isEmpty. Operand 10863 states and 16131 transitions. [2023-12-02 17:35:38,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2023-12-02 17:35:38,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:35:38,352 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:35:38,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 17:35:38,352 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:35:38,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:35:38,353 INFO L85 PathProgramCache]: Analyzing trace with hash 121812993, now seen corresponding path program 1 times [2023-12-02 17:35:38,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:35:38,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983797195] [2023-12-02 17:35:38,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:35:38,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:35:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:35:39,848 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2023-12-02 17:35:39,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:35:39,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983797195] [2023-12-02 17:35:39,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983797195] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:35:39,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:35:39,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 17:35:39,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863896653] [2023-12-02 17:35:39,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:35:39,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:35:39,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:35:39,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:35:39,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:35:39,852 INFO L87 Difference]: Start difference. First operand 10863 states and 16131 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-02 17:35:42,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:35:44,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:35:49,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:00,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:36:00,266 INFO L93 Difference]: Finished difference Result 21622 states and 32116 transitions. [2023-12-02 17:36:00,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:36:00,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 267 [2023-12-02 17:36:00,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:36:00,309 INFO L225 Difference]: With dead ends: 21622 [2023-12-02 17:36:00,309 INFO L226 Difference]: Without dead ends: 10815 [2023-12-02 17:36:00,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:36:00,344 INFO L413 NwaCegarLoop]: 10097 mSDtfsCounter, 16768 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 4842 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16768 SdHoareTripleChecker+Valid, 10119 SdHoareTripleChecker+Invalid, 5659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4842 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2023-12-02 17:36:00,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16768 Valid, 10119 Invalid, 5659 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4842 Valid, 814 Invalid, 3 Unknown, 0 Unchecked, 19.5s Time] [2023-12-02 17:36:00,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10815 states. [2023-12-02 17:36:01,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10815 to 10815. [2023-12-02 17:36:01,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10815 states, 6762 states have (on average 1.3152913339248744) internal successors, (8894), 6959 states have internal predecessors, (8894), 3582 states have call successors, (3582), 471 states have call predecessors, (3582), 470 states have return successors, (3581), 3537 states have call predecessors, (3581), 3581 states have call successors, (3581) [2023-12-02 17:36:01,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10815 states to 10815 states and 16057 transitions. [2023-12-02 17:36:01,129 INFO L78 Accepts]: Start accepts. Automaton has 10815 states and 16057 transitions. Word has length 267 [2023-12-02 17:36:01,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:36:01,129 INFO L495 AbstractCegarLoop]: Abstraction has 10815 states and 16057 transitions. [2023-12-02 17:36:01,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-12-02 17:36:01,130 INFO L276 IsEmpty]: Start isEmpty. Operand 10815 states and 16057 transitions. [2023-12-02 17:36:01,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2023-12-02 17:36:01,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:36:01,140 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:36:01,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 17:36:01,141 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:36:01,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:36:01,141 INFO L85 PathProgramCache]: Analyzing trace with hash 2041710486, now seen corresponding path program 1 times [2023-12-02 17:36:01,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:36:01,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809535648] [2023-12-02 17:36:01,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:36:01,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:36:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:36:02,509 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2023-12-02 17:36:02,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:36:02,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809535648] [2023-12-02 17:36:02,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809535648] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:36:02,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:36:02,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 17:36:02,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595799658] [2023-12-02 17:36:02,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:36:02,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:36:02,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:36:02,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:36:02,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:36:02,512 INFO L87 Difference]: Start difference. First operand 10815 states and 16057 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2023-12-02 17:36:04,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:06,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:08,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:14,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:16,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:18,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:20,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:22,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:24,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:26,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:33,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:48,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:51,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:36:51,428 INFO L93 Difference]: Finished difference Result 32355 states and 48057 transitions. [2023-12-02 17:36:51,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 17:36:51,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 295 [2023-12-02 17:36:51,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:36:51,521 INFO L225 Difference]: With dead ends: 32355 [2023-12-02 17:36:51,521 INFO L226 Difference]: Without dead ends: 21596 [2023-12-02 17:36:51,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 17:36:51,563 INFO L413 NwaCegarLoop]: 10826 mSDtfsCounter, 10810 mSDsluCounter, 31671 mSDsCounter, 0 mSdLazyCounter, 3180 mSolverCounterSat, 2 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10814 SdHoareTripleChecker+Valid, 42497 SdHoareTripleChecker+Invalid, 3192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3180 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:36:51,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10814 Valid, 42497 Invalid, 3192 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3180 Invalid, 10 Unknown, 0 Unchecked, 47.3s Time] [2023-12-02 17:36:51,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21596 states. [2023-12-02 17:36:53,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21596 to 21573. [2023-12-02 17:36:53,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21573 states, 13494 states have (on average 1.3159181858603823) internal successors, (17757), 13896 states have internal predecessors, (17757), 7141 states have call successors, (7141), 938 states have call predecessors, (7141), 937 states have return successors, (7140), 7044 states have call predecessors, (7140), 7140 states have call successors, (7140) [2023-12-02 17:36:53,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21573 states to 21573 states and 32038 transitions. [2023-12-02 17:36:53,335 INFO L78 Accepts]: Start accepts. Automaton has 21573 states and 32038 transitions. Word has length 295 [2023-12-02 17:36:53,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:36:53,336 INFO L495 AbstractCegarLoop]: Abstraction has 21573 states and 32038 transitions. [2023-12-02 17:36:53,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2023-12-02 17:36:53,336 INFO L276 IsEmpty]: Start isEmpty. Operand 21573 states and 32038 transitions. [2023-12-02 17:36:53,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-12-02 17:36:53,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:36:53,349 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:36:53,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 17:36:53,349 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:36:53,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:36:53,349 INFO L85 PathProgramCache]: Analyzing trace with hash -78629435, now seen corresponding path program 1 times [2023-12-02 17:36:53,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:36:53,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599085895] [2023-12-02 17:36:53,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:36:53,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:36:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:36:54,494 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2023-12-02 17:36:54,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:36:54,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599085895] [2023-12-02 17:36:54,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599085895] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:36:54,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:36:54,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 17:36:54,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491529886] [2023-12-02 17:36:54,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:36:54,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:36:54,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:36:54,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:36:54,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:36:54,498 INFO L87 Difference]: Start difference. First operand 21573 states and 32038 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2023-12-02 17:36:56,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:36:58,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:00,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:05,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:07,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:09,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:23,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:37:23,627 INFO L93 Difference]: Finished difference Result 38892 states and 57605 transitions. [2023-12-02 17:37:23,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:37:23,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 297 [2023-12-02 17:37:23,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:37:23,743 INFO L225 Difference]: With dead ends: 38892 [2023-12-02 17:37:23,743 INFO L226 Difference]: Without dead ends: 21605 [2023-12-02 17:37:23,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 17:37:23,800 INFO L413 NwaCegarLoop]: 10087 mSDtfsCounter, 10804 mSDsluCounter, 20160 mSDsCounter, 0 mSdLazyCounter, 2290 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10808 SdHoareTripleChecker+Valid, 30247 SdHoareTripleChecker+Invalid, 2297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2290 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2023-12-02 17:37:23,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10808 Valid, 30247 Invalid, 2297 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2290 Invalid, 6 Unknown, 0 Unchecked, 27.6s Time] [2023-12-02 17:37:23,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21605 states. [2023-12-02 17:37:25,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21605 to 21581. [2023-12-02 17:37:25,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21581 states, 13502 states have (on average 1.3157310028143978) internal successors, (17765), 13902 states have internal predecessors, (17765), 7139 states have call successors, (7139), 940 states have call predecessors, (7139), 939 states have return successors, (7138), 7044 states have call predecessors, (7138), 7138 states have call successors, (7138) [2023-12-02 17:37:25,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21581 states to 21581 states and 32042 transitions. [2023-12-02 17:37:25,652 INFO L78 Accepts]: Start accepts. Automaton has 21581 states and 32042 transitions. Word has length 297 [2023-12-02 17:37:25,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:37:25,653 INFO L495 AbstractCegarLoop]: Abstraction has 21581 states and 32042 transitions. [2023-12-02 17:37:25,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2023-12-02 17:37:25,654 INFO L276 IsEmpty]: Start isEmpty. Operand 21581 states and 32042 transitions. [2023-12-02 17:37:25,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-02 17:37:25,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:37:25,668 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:37:25,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 17:37:25,669 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:37:25,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:37:25,669 INFO L85 PathProgramCache]: Analyzing trace with hash 214525065, now seen corresponding path program 1 times [2023-12-02 17:37:25,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:37:25,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498967867] [2023-12-02 17:37:25,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:37:25,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:37:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:37:26,743 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2023-12-02 17:37:26,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:37:26,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498967867] [2023-12-02 17:37:26,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498967867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:37:26,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:37:26,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 17:37:26,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775817210] [2023-12-02 17:37:26,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:37:26,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:37:26,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:37:26,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:37:26,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:37:26,747 INFO L87 Difference]: Start difference. First operand 21581 states and 32042 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2023-12-02 17:37:28,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:31,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:33,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:39,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:41,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:43,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:45,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:47,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:49,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:37:51,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:38:12,678 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 [] [2023-12-02 17:38:16,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:38:16,332 INFO L93 Difference]: Finished difference Result 64675 states and 96046 transitions. [2023-12-02 17:38:16,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 17:38:16,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 298 [2023-12-02 17:38:16,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:38:16,519 INFO L225 Difference]: With dead ends: 64675 [2023-12-02 17:38:16,520 INFO L226 Difference]: Without dead ends: 43150 [2023-12-02 17:38:16,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 17:38:16,589 INFO L413 NwaCegarLoop]: 10803 mSDtfsCounter, 10808 mSDsluCounter, 31625 mSDsCounter, 0 mSdLazyCounter, 3195 mSolverCounterSat, 2 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10812 SdHoareTripleChecker+Valid, 42428 SdHoareTripleChecker+Invalid, 3207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3195 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.7s IncrementalHoareTripleChecker+Time [2023-12-02 17:38:16,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10812 Valid, 42428 Invalid, 3207 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3195 Invalid, 10 Unknown, 0 Unchecked, 46.7s Time] [2023-12-02 17:38:16,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43150 states. [2023-12-02 17:38:20,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43150 to 43107. [2023-12-02 17:38:20,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43107 states, 26974 states have (on average 1.3160450804478387) internal successors, (35499), 27790 states have internal predecessors, (35499), 14255 states have call successors, (14255), 1878 states have call predecessors, (14255), 1877 states have return successors, (14254), 14050 states have call predecessors, (14254), 14254 states have call successors, (14254) [2023-12-02 17:38:20,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43107 states to 43107 states and 64008 transitions. [2023-12-02 17:38:20,319 INFO L78 Accepts]: Start accepts. Automaton has 43107 states and 64008 transitions. Word has length 298 [2023-12-02 17:38:20,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:38:20,320 INFO L495 AbstractCegarLoop]: Abstraction has 43107 states and 64008 transitions. [2023-12-02 17:38:20,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2023-12-02 17:38:20,320 INFO L276 IsEmpty]: Start isEmpty. Operand 43107 states and 64008 transitions. [2023-12-02 17:38:20,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-02 17:38:20,339 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:38:20,339 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:38:20,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 17:38:20,339 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:38:20,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:38:20,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1259196080, now seen corresponding path program 1 times [2023-12-02 17:38:20,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:38:20,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227108471] [2023-12-02 17:38:20,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:38:20,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:38:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:38:21,459 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2023-12-02 17:38:21,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:38:21,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227108471] [2023-12-02 17:38:21,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227108471] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:38:21,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:38:21,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 17:38:21,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430037235] [2023-12-02 17:38:21,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:38:21,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:38:21,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:38:21,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:38:21,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:38:21,460 INFO L87 Difference]: Start difference. First operand 43107 states and 64008 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2023-12-02 17:38:23,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:38:25,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:38:27,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:38:32,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:38:34,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:38:36,397 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 [] [2023-12-02 17:38:52,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:38:52,303 INFO L93 Difference]: Finished difference Result 77764 states and 115148 transitions. [2023-12-02 17:38:52,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:38:52,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 298 [2023-12-02 17:38:52,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:38:52,488 INFO L225 Difference]: With dead ends: 77764 [2023-12-02 17:38:52,489 INFO L226 Difference]: Without dead ends: 43171 [2023-12-02 17:38:52,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 17:38:52,595 INFO L413 NwaCegarLoop]: 10087 mSDtfsCounter, 10802 mSDsluCounter, 20160 mSDsCounter, 0 mSdLazyCounter, 2290 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10806 SdHoareTripleChecker+Valid, 30247 SdHoareTripleChecker+Invalid, 2297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2290 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2023-12-02 17:38:52,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10806 Valid, 30247 Invalid, 2297 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2290 Invalid, 6 Unknown, 0 Unchecked, 27.7s Time] [2023-12-02 17:38:52,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43171 states. [2023-12-02 17:38:56,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43171 to 43123. [2023-12-02 17:38:56,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43123 states, 26990 states have (on average 1.3158577250833643) internal successors, (35515), 27802 states have internal predecessors, (35515), 14251 states have call successors, (14251), 1882 states have call predecessors, (14251), 1881 states have return successors, (14250), 14050 states have call predecessors, (14250), 14250 states have call successors, (14250) [2023-12-02 17:38:56,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43123 states to 43123 states and 64016 transitions. [2023-12-02 17:38:56,832 INFO L78 Accepts]: Start accepts. Automaton has 43123 states and 64016 transitions. Word has length 298 [2023-12-02 17:38:56,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:38:56,833 INFO L495 AbstractCegarLoop]: Abstraction has 43123 states and 64016 transitions. [2023-12-02 17:38:56,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2023-12-02 17:38:56,833 INFO L276 IsEmpty]: Start isEmpty. Operand 43123 states and 64016 transitions. [2023-12-02 17:38:56,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-02 17:38:56,851 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:38:56,851 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:38:56,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 17:38:56,851 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:38:56,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:38:56,852 INFO L85 PathProgramCache]: Analyzing trace with hash -223461462, now seen corresponding path program 1 times [2023-12-02 17:38:56,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:38:56,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947489250] [2023-12-02 17:38:56,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:38:56,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:38:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:38:58,179 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2023-12-02 17:38:58,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:38:58,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947489250] [2023-12-02 17:38:58,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947489250] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:38:58,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:38:58,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 17:38:58,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147390910] [2023-12-02 17:38:58,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:38:58,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:38:58,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:38:58,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:38:58,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:38:58,182 INFO L87 Difference]: Start difference. First operand 43123 states and 64016 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2023-12-02 17:39:00,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:39:02,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:39:04,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:39:09,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:39:11,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:39:13,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:39:30,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:39:31,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:39:31,957 INFO L93 Difference]: Finished difference Result 77776 states and 115156 transitions. [2023-12-02 17:39:31,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:39:31,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 298 [2023-12-02 17:39:31,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:39:32,136 INFO L225 Difference]: With dead ends: 77776 [2023-12-02 17:39:32,136 INFO L226 Difference]: Without dead ends: 43187 [2023-12-02 17:39:32,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 17:39:32,254 INFO L413 NwaCegarLoop]: 10087 mSDtfsCounter, 10802 mSDsluCounter, 20160 mSDsCounter, 0 mSdLazyCounter, 2289 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10806 SdHoareTripleChecker+Valid, 30247 SdHoareTripleChecker+Invalid, 2297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2289 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2023-12-02 17:39:32,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10806 Valid, 30247 Invalid, 2297 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2289 Invalid, 7 Unknown, 0 Unchecked, 30.5s Time] [2023-12-02 17:39:32,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43187 states. [2023-12-02 17:39:36,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43187 to 43139. [2023-12-02 17:39:36,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43139 states, 27006 states have (on average 1.3156705917203584) internal successors, (35531), 27814 states have internal predecessors, (35531), 14247 states have call successors, (14247), 1886 states have call predecessors, (14247), 1885 states have return successors, (14246), 14050 states have call predecessors, (14246), 14246 states have call successors, (14246) [2023-12-02 17:39:36,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43139 states to 43139 states and 64024 transitions. [2023-12-02 17:39:36,807 INFO L78 Accepts]: Start accepts. Automaton has 43139 states and 64024 transitions. Word has length 298 [2023-12-02 17:39:36,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:39:36,807 INFO L495 AbstractCegarLoop]: Abstraction has 43139 states and 64024 transitions. [2023-12-02 17:39:36,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2023-12-02 17:39:36,808 INFO L276 IsEmpty]: Start isEmpty. Operand 43139 states and 64024 transitions. [2023-12-02 17:39:36,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2023-12-02 17:39:36,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:39:36,827 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:39:36,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 17:39:36,827 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:39:36,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:39:36,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1505664706, now seen corresponding path program 1 times [2023-12-02 17:39:36,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:39:36,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246521212] [2023-12-02 17:39:36,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:39:36,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:39:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:39:38,208 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2023-12-02 17:39:38,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:39:38,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246521212] [2023-12-02 17:39:38,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246521212] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:39:38,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:39:38,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 17:39:38,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987084977] [2023-12-02 17:39:38,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:39:38,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:39:38,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:39:38,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:39:38,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:39:38,211 INFO L87 Difference]: Start difference. First operand 43139 states and 64024 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2023-12-02 17:39:40,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:39:42,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:39:44,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:39:49,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:39:51,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:39:53,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:40:00,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:40:10,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:40:12,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:40:12,399 INFO L93 Difference]: Finished difference Result 77768 states and 115112 transitions. [2023-12-02 17:40:12,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:40:12,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 299 [2023-12-02 17:40:12,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:40:12,567 INFO L225 Difference]: With dead ends: 77768 [2023-12-02 17:40:12,568 INFO L226 Difference]: Without dead ends: 43147 [2023-12-02 17:40:12,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 17:40:12,677 INFO L413 NwaCegarLoop]: 10087 mSDtfsCounter, 10800 mSDsluCounter, 20160 mSDsCounter, 0 mSdLazyCounter, 2290 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10804 SdHoareTripleChecker+Valid, 30247 SdHoareTripleChecker+Invalid, 2297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2290 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:40:12,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10804 Valid, 30247 Invalid, 2297 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2290 Invalid, 6 Unknown, 0 Unchecked, 30.4s Time] [2023-12-02 17:40:12,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43147 states. [2023-12-02 17:40:17,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43147 to 43111. [2023-12-02 17:40:17,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43111 states, 26986 states have (on average 1.3154598680797451) internal successors, (35499), 27790 states have internal predecessors, (35499), 14239 states have call successors, (14239), 1886 states have call predecessors, (14239), 1885 states have return successors, (14238), 14046 states have call predecessors, (14238), 14238 states have call successors, (14238) [2023-12-02 17:40:17,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43111 states to 43111 states and 63976 transitions. [2023-12-02 17:40:17,393 INFO L78 Accepts]: Start accepts. Automaton has 43111 states and 63976 transitions. Word has length 299 [2023-12-02 17:40:17,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:40:17,394 INFO L495 AbstractCegarLoop]: Abstraction has 43111 states and 63976 transitions. [2023-12-02 17:40:17,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2023-12-02 17:40:17,394 INFO L276 IsEmpty]: Start isEmpty. Operand 43111 states and 63976 transitions. [2023-12-02 17:40:17,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2023-12-02 17:40:17,413 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:40:17,414 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:40:17,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 17:40:17,414 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:40:17,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:40:17,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1334638874, now seen corresponding path program 1 times [2023-12-02 17:40:17,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:40:17,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898116249] [2023-12-02 17:40:17,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:40:17,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:40:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:40:18,656 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2023-12-02 17:40:18,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:40:18,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898116249] [2023-12-02 17:40:18,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898116249] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:40:18,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:40:18,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 17:40:18,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328923834] [2023-12-02 17:40:18,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:40:18,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:40:18,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:40:18,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:40:18,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:40:18,659 INFO L87 Difference]: Start difference. First operand 43111 states and 63976 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2023-12-02 17:40:20,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:40:22,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:40:24,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:40:29,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:40:31,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:40:33,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:40:50,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:40:50,249 INFO L93 Difference]: Finished difference Result 77770 states and 115100 transitions. [2023-12-02 17:40:50,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:40:50,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 300 [2023-12-02 17:40:50,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:40:50,415 INFO L225 Difference]: With dead ends: 77770 [2023-12-02 17:40:50,415 INFO L226 Difference]: Without dead ends: 43175 [2023-12-02 17:40:50,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 17:40:50,521 INFO L413 NwaCegarLoop]: 10087 mSDtfsCounter, 10800 mSDsluCounter, 20160 mSDsCounter, 0 mSdLazyCounter, 2290 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10804 SdHoareTripleChecker+Valid, 30247 SdHoareTripleChecker+Invalid, 2297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2290 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:40:50,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10804 Valid, 30247 Invalid, 2297 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2290 Invalid, 6 Unknown, 0 Unchecked, 28.0s Time] [2023-12-02 17:40:50,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43175 states. [2023-12-02 17:40:55,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43175 to 43127. [2023-12-02 17:40:55,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43127 states, 27002 states have (on average 1.3152729427449819) internal successors, (35515), 27802 states have internal predecessors, (35515), 14235 states have call successors, (14235), 1890 states have call predecessors, (14235), 1889 states have return successors, (14234), 14046 states have call predecessors, (14234), 14234 states have call successors, (14234) [2023-12-02 17:40:55,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43127 states to 43127 states and 63984 transitions. [2023-12-02 17:40:55,282 INFO L78 Accepts]: Start accepts. Automaton has 43127 states and 63984 transitions. Word has length 300 [2023-12-02 17:40:55,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:40:55,283 INFO L495 AbstractCegarLoop]: Abstraction has 43127 states and 63984 transitions. [2023-12-02 17:40:55,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2023-12-02 17:40:55,283 INFO L276 IsEmpty]: Start isEmpty. Operand 43127 states and 63984 transitions. [2023-12-02 17:40:55,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2023-12-02 17:40:55,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:40:55,298 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:40:55,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 17:40:55,299 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:40:55,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:40:55,299 INFO L85 PathProgramCache]: Analyzing trace with hash 779997788, now seen corresponding path program 1 times [2023-12-02 17:40:55,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:40:55,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256413855] [2023-12-02 17:40:55,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:40:55,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:40:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:40:56,550 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2023-12-02 17:40:56,550 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:40:56,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256413855] [2023-12-02 17:40:56,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256413855] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:40:56,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:40:56,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 17:40:56,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426885631] [2023-12-02 17:40:56,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:40:56,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:40:56,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:40:56,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:40:56,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:40:56,553 INFO L87 Difference]: Start difference. First operand 43127 states and 63984 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2023-12-02 17:40:58,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:41:00,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:41:02,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:41:07,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:41:09,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:41:11,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:41:29,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:41:29,772 INFO L93 Difference]: Finished difference Result 74496 states and 110292 transitions. [2023-12-02 17:41:29,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:41:29,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 301 [2023-12-02 17:41:29,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:41:29,918 INFO L225 Difference]: With dead ends: 74496 [2023-12-02 17:41:29,918 INFO L226 Difference]: Without dead ends: 39881 [2023-12-02 17:41:30,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 17:41:30,016 INFO L413 NwaCegarLoop]: 10087 mSDtfsCounter, 10798 mSDsluCounter, 20160 mSDsCounter, 0 mSdLazyCounter, 2290 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10802 SdHoareTripleChecker+Valid, 30247 SdHoareTripleChecker+Invalid, 2297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2290 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:41:30,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10802 Valid, 30247 Invalid, 2297 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2290 Invalid, 6 Unknown, 0 Unchecked, 29.4s Time] [2023-12-02 17:41:30,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39881 states. [2023-12-02 17:41:34,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39881 to 39845. [2023-12-02 17:41:34,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39845 states, 24980 states have (on average 1.3160528422738191) internal successors, (32875), 25701 states have internal predecessors, (32875), 13151 states have call successors, (13151), 1714 states have call predecessors, (13151), 1713 states have return successors, (13150), 12984 states have call predecessors, (13150), 13150 states have call successors, (13150) [2023-12-02 17:41:34,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39845 states to 39845 states and 59176 transitions. [2023-12-02 17:41:34,800 INFO L78 Accepts]: Start accepts. Automaton has 39845 states and 59176 transitions. Word has length 301 [2023-12-02 17:41:34,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:41:34,801 INFO L495 AbstractCegarLoop]: Abstraction has 39845 states and 59176 transitions. [2023-12-02 17:41:34,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2023-12-02 17:41:34,802 INFO L276 IsEmpty]: Start isEmpty. Operand 39845 states and 59176 transitions. [2023-12-02 17:41:34,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2023-12-02 17:41:34,816 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:41:34,816 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:41:34,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 17:41:34,817 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:41:34,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:41:34,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1296887305, now seen corresponding path program 1 times [2023-12-02 17:41:34,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:41:34,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108923999] [2023-12-02 17:41:34,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:41:34,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:41:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:41:36,677 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked. [2023-12-02 17:41:36,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:41:36,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108923999] [2023-12-02 17:41:36,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108923999] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:41:36,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348111327] [2023-12-02 17:41:36,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:41:36,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:41:36,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:41:36,680 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:41:36,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 17:41:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:41:40,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 12030 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 17:41:40,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:41:40,601 INFO L134 CoverageAnalysis]: Checked inductivity of 891 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2023-12-02 17:41:40,601 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:41:40,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348111327] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:41:40,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:41:40,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2023-12-02 17:41:40,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348133348] [2023-12-02 17:41:40,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:41:40,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 17:41:40,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:41:40,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 17:41:40,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-02 17:41:40,605 INFO L87 Difference]: Start difference. First operand 39845 states and 59176 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-02 17:41:42,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:41:44,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:41:46,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:41:48,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:41:50,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:42:02,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:42:04,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:42:06,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:42:08,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:42:10,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:42:12,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:42:14,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:42:16,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:42:18,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:42:20,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:42:22,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:42:42,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:42:56,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:42:57,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:42:58,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:03,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:05,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:43:05,954 INFO L93 Difference]: Finished difference Result 79757 states and 118416 transitions. [2023-12-02 17:43:05,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 17:43:05,955 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) Word has length 314 [2023-12-02 17:43:05,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:43:06,203 INFO L225 Difference]: With dead ends: 79757 [2023-12-02 17:43:06,204 INFO L226 Difference]: Without dead ends: 58178 [2023-12-02 17:43:06,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2023-12-02 17:43:06,302 INFO L413 NwaCegarLoop]: 15939 mSDtfsCounter, 10847 mSDsluCounter, 73775 mSDsCounter, 0 mSdLazyCounter, 6817 mSolverCounterSat, 1 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10851 SdHoareTripleChecker+Valid, 89714 SdHoareTripleChecker+Invalid, 6835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6817 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.6s IncrementalHoareTripleChecker+Time [2023-12-02 17:43:06,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10851 Valid, 89714 Invalid, 6835 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [1 Valid, 6817 Invalid, 17 Unknown, 0 Unchecked, 79.6s Time] [2023-12-02 17:43:06,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58178 states. [2023-12-02 17:43:12,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58178 to 58087. [2023-12-02 17:43:12,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58087 states, 36440 states have (on average 1.3167124039517015) internal successors, (47981), 37486 states have internal predecessors, (47981), 19169 states have call successors, (19169), 2474 states have call predecessors, (19169), 2477 states have return successors, (19172), 18930 states have call predecessors, (19172), 19168 states have call successors, (19172) [2023-12-02 17:43:12,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58087 states to 58087 states and 86322 transitions. [2023-12-02 17:43:12,845 INFO L78 Accepts]: Start accepts. Automaton has 58087 states and 86322 transitions. Word has length 314 [2023-12-02 17:43:12,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:43:12,846 INFO L495 AbstractCegarLoop]: Abstraction has 58087 states and 86322 transitions. [2023-12-02 17:43:12,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-02 17:43:12,846 INFO L276 IsEmpty]: Start isEmpty. Operand 58087 states and 86322 transitions. [2023-12-02 17:43:12,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2023-12-02 17:43:12,865 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:43:12,865 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:43:12,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 17:43:13,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-02 17:43:13,066 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:43:13,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:43:13,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1617627593, now seen corresponding path program 1 times [2023-12-02 17:43:13,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:43:13,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696140965] [2023-12-02 17:43:13,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:43:13,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:43:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:43:14,977 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2023-12-02 17:43:14,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:43:14,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696140965] [2023-12-02 17:43:14,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696140965] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:43:14,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174830921] [2023-12-02 17:43:14,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:43:14,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:43:14,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:43:14,980 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:43:14,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 17:43:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:43:18,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 12031 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 17:43:18,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:43:19,132 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2023-12-02 17:43:19,132 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:43:19,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174830921] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:43:19,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:43:19,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2023-12-02 17:43:19,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791036578] [2023-12-02 17:43:19,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:43:19,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 17:43:19,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:43:19,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 17:43:19,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-02 17:43:19,135 INFO L87 Difference]: Start difference. First operand 58087 states and 86322 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-02 17:43:21,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:23,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:25,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:27,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:29,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:40,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:42,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:44,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:46,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:48,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:50,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:53,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:55,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:57,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:59,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:44:01,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:44:15,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:44:17,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:44:19,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:44:41,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:44:42,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:44:49,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:44:49,931 INFO L93 Difference]: Finished difference Result 116253 states and 172720 transitions. [2023-12-02 17:44:49,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 17:44:49,932 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) Word has length 314 [2023-12-02 17:44:49,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:44:50,261 INFO L225 Difference]: With dead ends: 116253 [2023-12-02 17:44:50,261 INFO L226 Difference]: Without dead ends: 76432 [2023-12-02 17:44:50,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2023-12-02 17:44:50,527 INFO L413 NwaCegarLoop]: 14992 mSDtfsCounter, 10847 mSDsluCounter, 69973 mSDsCounter, 0 mSdLazyCounter, 6618 mSolverCounterSat, 1 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 81.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10851 SdHoareTripleChecker+Valid, 84965 SdHoareTripleChecker+Invalid, 6635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6618 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.5s IncrementalHoareTripleChecker+Time [2023-12-02 17:44:50,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10851 Valid, 84965 Invalid, 6635 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 6618 Invalid, 16 Unknown, 0 Unchecked, 83.5s Time] [2023-12-02 17:44:50,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76432 states. [2023-12-02 17:45:00,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76432 to 76325. [2023-12-02 17:45:00,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76325 states, 47896 states have (on average 1.3170828461666946) internal successors, (63083), 49271 states have internal predecessors, (63083), 25187 states have call successors, (25187), 3234 states have call predecessors, (25187), 3241 states have return successors, (25194), 24872 states have call predecessors, (25194), 25186 states have call successors, (25194) [2023-12-02 17:45:00,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76325 states to 76325 states and 113464 transitions. [2023-12-02 17:45:00,546 INFO L78 Accepts]: Start accepts. Automaton has 76325 states and 113464 transitions. Word has length 314 [2023-12-02 17:45:00,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:45:00,547 INFO L495 AbstractCegarLoop]: Abstraction has 76325 states and 113464 transitions. [2023-12-02 17:45:00,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-02 17:45:00,547 INFO L276 IsEmpty]: Start isEmpty. Operand 76325 states and 113464 transitions. [2023-12-02 17:45:00,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-12-02 17:45:00,575 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:45:00,575 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:45:00,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 17:45:00,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-02 17:45:00,776 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:45:00,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:45:00,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1798604487, now seen corresponding path program 1 times [2023-12-02 17:45:00,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:45:00,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618340332] [2023-12-02 17:45:00,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:45:00,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:45:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:45:02,878 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2023-12-02 17:45:02,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:45:02,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618340332] [2023-12-02 17:45:02,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618340332] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:45:02,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443612028] [2023-12-02 17:45:02,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:45:02,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:45:02,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:45:02,880 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:45:02,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2e7afc-44c9-4d44-9c66-8cad4fa6bd14/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 17:45:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:45:07,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 12033 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 17:45:07,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:45:07,254 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2023-12-02 17:45:07,255 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:45:07,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443612028] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:45:07,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 17:45:07,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2023-12-02 17:45:07,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701572085] [2023-12-02 17:45:07,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:45:07,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 17:45:07,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:45:07,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 17:45:07,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-02 17:45:07,259 INFO L87 Difference]: Start difference. First operand 76325 states and 113464 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 5 states have internal predecessors, (114), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-02 17:45:09,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:45:11,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:45:13,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:45:15,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:45:17,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:45:29,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:45:31,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:45:33,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:45:35,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:45:37,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:45:39,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:45:42,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:45:44,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:45:46,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:45:48,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:45:50,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []