Trace number 1725928

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
MXC 2009-03-10UNSAT 55.5506 55.5776

General information on the benchmark

Namecrafted/Medium/contest05/others/
QG8-gensys-ukn005.sat05-3584.reshuffled-07.cnf
MD5SUMdb9d2b7fba78f1cbe73aba9a1aa51042
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark34.6907
Satisfiable
(Un)Satisfiability was proved
Number of variables1133
Number of clauses56210
Sum of the clauses size352304
Maximum clause length22
Minimum clause length1
Number of clauses of size 136
Number of clauses of size 22544
Number of clauses of size 310764
Number of clauses of size 427
Number of clauses of size 545
Number of clauses of size over 542794

Solver Data 

55.46/55.57	c starting MXC with:
55.46/55.57	c cnf_path = HOME/instance-1725928-1240707819.cnf
55.46/55.57	c restart_strategy = auto
55.46/55.57	c sign_strategy = cached
55.46/55.57	c use_preprocessing = -1
55.46/55.57	c output_implicant = 1
55.46/55.57	c timeout_seconds = 0
55.46/55.57	c running SatELite... done
55.46/55.57	c 422 vars eliminated
55.46/55.57	c received 64 units and 47077 clauses from SatELite
55.46/55.57	c 485 assignments made, starting to guess now
55.46/55.57	c ===================================[MXC]=====================================
55.46/55.57	c | Conflicts |                Clause Statistics                   |   Vars   |
55.46/55.57	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
55.46/55.57	c =============================================================================
55.46/55.57	c |         0 |       0    6280    40797        0        0     nan |     1133 |
55.46/55.57	c |       100 |       0    6280    40797      100     1050    30.2 |      648 |
55.46/55.57	c |       210 |       0    6280    40797      210     1105    29.2 |      648 |
55.46/55.57	c |       441 |       0    6280    40797      441     1220    31.9 |      648 |
55.46/55.57	c |       805 |       0    6280    40797      805     1402    29.1 |      648 |
55.46/55.57	c |      1315 |       0    6280    40797     1315     1657    29.6 |      648 |
55.46/55.57	c |      1986 |       0    6280    40797     1986     1993    32.7 |      648 |
55.46/55.57	c |      2834 |       0    6280    40797     1835     2417    32.6 |      648 |
55.46/55.57	c |      3876 |       0    6280    40797     2877     2938    31.1 |      648 |
55.46/55.57	c |      5132 |       0    6280    40797     2633     3566    27.2 |      648 |
55.46/55.57	c |      6623 |       0    6280    40797     4124     4311    27.5 |      648 |
55.46/55.57	c |      8373 |       0    6280    40797     3624     5186    26.6 |      648 |
55.46/55.57	c |     10408 |       0    6281    40797     5658     6204    27.9 |      648 |
55.46/55.57	c |     12756 |       0    6281    40797     4631     7378    31.5 |      648 |
55.46/55.57	c |     15449 |       0    6282    40797     7323     8724    29.9 |      648 |
55.46/55.57	c |     18521 |       0    6282    40797     5332    10260    27.2 |      648 |
55.46/55.57	c |     22010 |       0    6283    40797     8820    12005    28.2 |      648 |
55.46/55.57	c |     25958 |       0    6284    40797    12767    13979    28.8 |      648 |
55.46/55.57	c |     30411 |       0    6286    40797     9622    16205    27.5 |      648 |
55.46/55.57	c |     35419 |       0    6288    40797    14628    18709    28.9 |      648 |
55.46/55.57	c |     41038 |       0    6298    40797    20236    21519    29.1 |      645 |
55.46/55.57	c |     47329 |       0    6216    38636    10463    24664    31.4 |      645 |
55.46/55.57	c |     54360 |       0    6216    38636    17494    28180    32.2 |      645 |
55.46/55.57	c |     62205 |       0    6216    38636    25339    32102    33.0 |      645 |
55.46/55.57	c |     70945 |       0    6216    38636    34079    36472    34.4 |      645 |
55.46/55.57	c |     80669 |       0    6216    38636    24370    41334    36.4 |      645 |
55.46/55.57	c |     91476 |       0    6217    38636    35176    46738    38.2 |      645 |
55.46/55.57	c |    103474 |       0    6219    38636    47172    50798    37.5 |      645 |
55.46/55.57	c |    116782 |       0    6084    34410    21937    52287    32.2 |      639 |
55.46/55.57	c |    131532 |       0    5878    30491    27765    49633    32.3 |      630 |
55.46/55.57	c |    147868 |       0    5878    30491    44101    46713    34.6 |      630 |
55.46/55.57	c |    165948 |       0    5896    30491    38698    48052    31.3 |      618 |
55.46/55.57	c |    185947 |       0    5615    25358    33735    49360    30.2 |      618 |
55.46/55.57	c |    191472 |       0    5651    25358    39210    43684    29.9 |      220 |
55.46/55.57	c ----- stats for thread 0 -----
55.46/55.57	c restarts: 29
55.46/55.57	c decisions: 224983
55.46/55.57	c propagations: 16548408
55.46/55.57	c conflicts: 191472
55.46/55.57	c 55.570s elapsed
55.46/55.57	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1725928-1240707819/watcher-1725928-1240707819 -o /tmp/evaluation-result-1725928-1240707819/solver-1725928-1240707819 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1725928-1240707819.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 979
/proc/meminfo: memFree=1805296/2055920 swapFree=4191900/4192956
[pid=979] ppid=977 vsize=2792 CPUtime=0
/proc/979/stat : 979 (mxc-sat09) R 977 979 850 0 -1 4194304 580 0 0 0 0 0 0 0 18 0 1 0 98807934 2859008 566 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 0 0 0
/proc/979/statm: 698 568 55 166 0 529 0

[startup+0.0775099 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 979
/proc/meminfo: memFree=1805296/2055920 swapFree=4191900/4192956
[pid=979] ppid=977 vsize=6880 CPUtime=0.06
/proc/979/stat : 979 (mxc-sat09) R 977 979 850 0 -1 4194304 1565 0 0 0 6 0 0 0 18 0 1 0 98807934 7045120 1551 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 0 0 0
/proc/979/statm: 1720 1552 55 166 0 1551 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 6880

[startup+0.101511 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 979
/proc/meminfo: memFree=1805296/2055920 swapFree=4191900/4192956
[pid=979] ppid=977 vsize=5996 CPUtime=0.09
/proc/979/stat : 979 (mxc-sat09) R 977 979 850 0 -1 4194304 1777 0 0 0 8 1 0 0 18 0 1 0 98807934 6139904 1344 1992294400 134512640 135192793 4294956208 18446744073709551615 134567659 0 0 4096 0 0 0 0 17 0 0 0
/proc/979/statm: 1499 1344 56 166 0 1330 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5996

[startup+0.30153 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 979
/proc/meminfo: memFree=1805296/2055920 swapFree=4191900/4192956
[pid=979] ppid=977 vsize=5996 CPUtime=0.29
/proc/979/stat : 979 (mxc-sat09) R 977 979 850 0 -1 4194304 1779 0 0 0 28 1 0 0 19 0 1 0 98807934 6139904 1346 1992294400 134512640 135192793 4294956208 18446744073709551615 134567581 0 0 4096 0 0 0 0 17 0 0 0
/proc/979/statm: 1499 1346 56 166 0 1330 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5996

[startup+0.70157 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 979
/proc/meminfo: memFree=1805296/2055920 swapFree=4191900/4192956
[pid=979] ppid=977 vsize=5996 CPUtime=0.69
/proc/979/stat : 979 (mxc-sat09) R 977 979 850 0 -1 4194304 1781 0 0 0 68 1 0 0 23 0 1 0 98807934 6139904 1348 1992294400 134512640 135192793 4294956208 18446744073709551615 134567773 0 0 4096 0 0 0 0 17 0 0 0
/proc/979/statm: 1499 1348 56 166 0 1330 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5996

[startup+1.50165 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 980
/proc/meminfo: memFree=1799848/2055920 swapFree=4191900/4192956
[pid=979] ppid=977 vsize=6296 CPUtime=1.49
/proc/979/stat : 979 (mxc-sat09) R 977 979 850 0 -1 4194304 1835 0 0 0 148 1 0 0 25 0 1 0 98807934 6447104 1402 1992294400 134512640 135192793 4294956208 18446744073709551615 134567659 0 0 4096 0 0 0 0 17 0 0 0
/proc/979/statm: 1574 1402 56 166 0 1405 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6296

[startup+3.10181 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 980
/proc/meminfo: memFree=1796712/2055920 swapFree=4191900/4192956
[pid=979] ppid=977 vsize=11060 CPUtime=3.09
/proc/979/stat : 979 (mxc-sat09) R 977 979 850 0 -1 4194304 3142 0 0 0 308 1 0 0 25 0 1 0 98807934 11325440 2583 1992294400 134512640 135192793 4294956208 18446744073709551615 134534128 0 0 4096 0 0 0 0 17 0 0 0
/proc/979/statm: 2765 2583 73 166 0 2596 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 11060

[startup+6.30113 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 980
/proc/meminfo: memFree=1792616/2055920 swapFree=4191900/4192956
[pid=979] ppid=977 vsize=13864 CPUtime=6.29
/proc/979/stat : 979 (mxc-sat09) R 977 979 850 0 -1 4194304 3807 0 0 0 627 2 0 0 25 0 1 0 98807934 14196736 3248 1992294400 134512640 135192793 4294956208 18446744073709551615 134534131 0 0 4096 0 0 0 0 17 0 0 0
/proc/979/statm: 3466 3248 73 166 0 3297 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 13864

[startup+12.7018 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 980
/proc/meminfo: memFree=1788328/2055920 swapFree=4191900/4192956
[pid=979] ppid=977 vsize=18448 CPUtime=12.68
/proc/979/stat : 979 (mxc-sat09) R 977 979 850 0 -1 4194304 4940 0 0 0 1265 3 0 0 25 0 1 0 98807934 18890752 4381 1992294400 134512640 135192793 4294956208 18446744073709551615 134533197 0 0 4096 0 0 0 0 17 0 0 0
/proc/979/statm: 4612 4381 73 166 0 4443 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 18448

[startup+25.501 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 980
/proc/meminfo: memFree=1780328/2055920 swapFree=4191900/4192956
[pid=979] ppid=977 vsize=26392 CPUtime=25.47
/proc/979/stat : 979 (mxc-sat09) R 977 979 850 0 -1 4194304 6824 0 0 0 2543 4 0 0 25 0 1 0 98807934 27025408 6265 1992294400 134512640 135192793 4294956208 18446744073709551615 134533794 0 0 4096 0 0 0 0 17 0 0 0
/proc/979/statm: 6598 6265 73 166 0 6429 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 26392

[startup+51.1016 s]
/proc/loadavg: 0.96 0.98 0.99 2/65 980
/proc/meminfo: memFree=1778792/2055920 swapFree=4191900/4192956
[pid=979] ppid=977 vsize=28312 CPUtime=51.06
/proc/979/stat : 979 (mxc-sat09) R 977 979 850 0 -1 4194304 7200 0 0 0 5101 5 0 0 25 0 1 0 98807934 28991488 6641 1992294400 134512640 135192793 4294956208 18446744073709551615 134533920 0 0 4096 0 0 0 0 17 0 0 0
/proc/979/statm: 7078 6641 73 166 0 6909 0
Current children cumulated CPU time (s) 51.06
Current children cumulated vsize (KiB) 28312

Solver just ended. Dumping a history of the last processes samples

[startup+52.7017 s]
/proc/loadavg: 0.96 0.98 0.99 2/65 980
/proc/meminfo: memFree=1778792/2055920 swapFree=4191900/4192956
[pid=979] ppid=977 vsize=28312 CPUtime=52.67
/proc/979/stat : 979 (mxc-sat09) R 977 979 850 0 -1 4194304 7200 0 0 0 5262 5 0 0 25 0 1 0 98807934 28991488 6641 1992294400 134512640 135192793 4294956208 18446744073709551615 134744598 0 0 4096 0 0 0 0 17 0 0 0
/proc/979/statm: 7078 6641 73 166 0 6909 0
Current children cumulated CPU time (s) 52.67
Current children cumulated vsize (KiB) 28312

[startup+54.3029 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 980
/proc/meminfo: memFree=1778664/2055920 swapFree=4191900/4192956
[pid=979] ppid=977 vsize=28456 CPUtime=54.26
/proc/979/stat : 979 (mxc-sat09) R 977 979 850 0 -1 4194304 7233 0 0 0 5421 5 0 0 25 0 1 0 98807934 29138944 6674 1992294400 134512640 135192793 4294956208 18446744073709551615 134552311 0 0 4096 0 0 0 0 17 0 0 0
/proc/979/statm: 7114 6674 73 166 0 6945 0
Current children cumulated CPU time (s) 54.26
Current children cumulated vsize (KiB) 28456

[startup+55.102 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 980
/proc/meminfo: memFree=1778664/2055920 swapFree=4191900/4192956
[pid=979] ppid=977 vsize=28456 CPUtime=55.06
/proc/979/stat : 979 (mxc-sat09) R 977 979 850 0 -1 4194304 7234 0 0 0 5501 5 0 0 25 0 1 0 98807934 29138944 6675 1992294400 134512640 135192793 4294956208 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 0 0 0
/proc/979/statm: 7114 6675 73 166 0 6945 0
Current children cumulated CPU time (s) 55.06
Current children cumulated vsize (KiB) 28456

[startup+55.502 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 980
/proc/meminfo: memFree=1778664/2055920 swapFree=4191900/4192956
[pid=979] ppid=977 vsize=28456 CPUtime=55.46
/proc/979/stat : 979 (mxc-sat09) R 977 979 850 0 -1 4194304 7234 0 0 0 5541 5 0 0 25 0 1 0 98807934 29138944 6675 1992294400 134512640 135192793 4294956208 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 0 0 0
/proc/979/statm: 7114 6675 73 166 0 6945 0
Current children cumulated CPU time (s) 55.46
Current children cumulated vsize (KiB) 28456

Child status: 20
Real time (s): 55.5776
CPU time (s): 55.5506
CPU user time (s): 55.4896
CPU system time (s): 0.06099
CPU usage (%): 99.9514
Max. virtual memory (cumulated for all children) (KiB): 28456

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 55.4896
system time used= 0.06099
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7237
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 171

runsolver used 0.047992 second user time and 0.160975 second system time

The end

Launcher Data 

Begin job on node70 at 2009-04-26 03:03:39
IDJOB=1725928
IDBENCH=24601
IDSOLVER=504
FILE ID=node70/1725928-1240707819
PBS_JOBID= 9186830
Free space on /tmp= 66336 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT07/crafted/Medium/contest05/others/QG8-gensys-ukn005.sat05-3584.reshuffled-07.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1725928-1240707819/watcher-1725928-1240707819 -o /tmp/evaluation-result-1725928-1240707819/solver-1725928-1240707819 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1725928-1240707819.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= db9d2b7fba78f1cbe73aba9a1aa51042
RANDOM SEED=1877037982

node70.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.213
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.213
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1805712 kB
Buffers:         29736 kB
Cached:         142736 kB
SwapCached:        384 kB
Active:          70668 kB
Inactive:       115136 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1805712 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            2368 kB
Writeback:           0 kB
Mapped:          21760 kB
Slab:            50424 kB
Committed_AS:   312608 kB
PageTables:       1372 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66336 MiB
End job on node70 at 2009-04-26 03:04:35