Trace number 333109

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, and are wall clock time (not CPU 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 2007-02-08SAT 28.5627 28.5849

General information on the benchmark

Namecrafted/Medium/contest05/others/
QG7a-gensys-brn100.sat05-3765.reshuffled-07.cnf
MD5SUM0a1b9434c65125233161905ac395e7f3
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark2.34864
Satisfiable
(Un)Satisfiability was proved
Number of variables2901
Number of clauses18243
Sum of the clauses size130564
Maximum clause length13
Minimum clause length1
Number of clauses of size 128
Number of clauses of size 2401
Number of clauses of size 32345
Number of clauses of size 4462
Number of clauses of size 5637
Number of clauses of size over 514370

Solver Data (download as text)

28.49/28.58	c MXC attempting /tmp/evaluation/333109-1173502141/instance-333109-1173502141.cnf
28.49/28.58	c 49 assignments made, starting to guess now
28.49/28.58	c ===================================[MXC]=====================================
28.49/28.58	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
28.49/28.58	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
28.49/28.58	c =============================================================================
28.49/28.58	c |         0 |   15756   123560 |    5252       0       0     nan |  1.689 % |
28.49/28.58	c |       101 |   15756   123560 |    5777     101    1630    16.1 |  1.689 % |
28.49/28.58	c |       251 |   15756   123560 |    6354     245    3309    13.5 |  1.689 % |
28.49/28.58	c |       476 |   15756   123560 |    6990     470    6572    14.0 |  1.689 % |
28.49/28.58	c |       814 |   15756   123560 |    7689     808   11633    14.4 |  1.689 % |
28.49/28.58	c |      1321 |   15756   123560 |    8458    1315   19197    14.6 |  1.689 % |
28.49/28.58	c |      2081 |   15756   123560 |    9304    2074   30117    14.5 |  1.689 % |
28.49/28.58	c |      3220 |   15756   123560 |   10234    3210   50390    15.7 |  1.689 % |
28.49/28.58	c |      4928 |   15756   123560 |   11258    4918   82344    16.7 |  1.689 % |
28.49/28.58	c |      7490 |   15756   123560 |   12383    7479  122043    16.3 |  1.689 % |
28.49/28.58	c |     11334 |   15756   123560 |   13622   11316  207139    18.3 |  1.689 % |
28.49/28.58	c |     17100 |   15756   123560 |   14984   10266  200628    19.5 |  1.689 % |
28.49/28.58	c |     25751 |   15756   123560 |   16483   11424  264911    23.2 |  1.689 % |
28.49/28.58	c |     38726 |   15756   123560 |   18131   16149  331467    20.5 |  1.689 % |
28.49/28.58	c |     58187 |   15756   123560 |   19944   17493  481710    27.5 |  1.689 % |
28.49/28.58	c |     87380 |   15756   123560 |   21938   16789  417497    24.9 |  1.689 % |
28.49/28.58	c |    131169 |   15756   123560 |   24132   16698  413110    24.7 |  1.689 % |
28.49/28.58	c |    196855 |   15756   123560 |   26546   22109  624250    28.2 |  1.689 % |
28.49/28.58	c 28.560s elapsed
28.49/28.58	c restarts: 17
28.49/28.58	c decisions: 795024
28.49/28.58	c propagations: 7457242
28.49/28.58	c conflicts: 250753
28.49/28.58	s SATISFIABLE
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Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node11/watcher-333109-1173502141 -o ROOT/results/node11/solver-333109-1173502141 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/333109-1173502141/mxc /tmp/evaluation/333109-1173502141/instance-333109-1173502141.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): 2400 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: 0.99 0.97 1.09 3/77 12657
/proc/meminfo: memFree=1418880/2055920 swapFree=4169972/4192956
[pid=12657] ppid=12655 vsize=2040 CPUtime=0
/proc/12657/stat : 12657 (mxc) R 12655 12657 10565 0 -1 4194304 362 0 0 0 0 0 0 0 18 0 1 0 370168647 2088960 346 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/12657/statm: 510 346 46 122 0 384 0

[startup+0.0456681 s]
/proc/loadavg: 0.99 0.97 1.09 3/77 12657
/proc/meminfo: memFree=1418880/2055920 swapFree=4169972/4192956
[pid=12657] ppid=12655 vsize=2400 CPUtime=0.04
/proc/12657/stat : 12657 (mxc) R 12655 12657 10565 0 -1 4194304 626 0 0 0 4 0 0 0 18 0 1 0 370168647 2457600 436 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/12657/statm: 600 437 59 122 0 474 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 2400

[startup+0.102675 s]
/proc/loadavg: 0.99 0.97 1.09 3/77 12657
/proc/meminfo: memFree=1418880/2055920 swapFree=4169972/4192956
[pid=12657] ppid=12655 vsize=2664 CPUtime=0.09
/proc/12657/stat : 12657 (mxc) R 12655 12657 10565 0 -1 4194304 676 0 0 0 9 0 0 0 18 0 1 0 370168647 2727936 486 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/12657/statm: 666 486 59 122 0 540 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2664

[startup+0.302699 s]
/proc/loadavg: 0.99 0.97 1.09 3/77 12657
/proc/meminfo: memFree=1418880/2055920 swapFree=4169972/4192956
[pid=12657] ppid=12655 vsize=3192 CPUtime=0.29
/proc/12657/stat : 12657 (mxc) R 12655 12657 10565 0 -1 4194304 826 0 0 0 29 0 0 0 19 0 1 0 370168647 3268608 636 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519987 0 0 4096 0 0 0 0 17 1 0 0
/proc/12657/statm: 798 636 59 122 0 672 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3192

[startup+0.701745 s]
/proc/loadavg: 0.99 0.97 1.09 3/77 12657
/proc/meminfo: memFree=1418880/2055920 swapFree=4169972/4192956
[pid=12657] ppid=12655 vsize=4072 CPUtime=0.69
/proc/12657/stat : 12657 (mxc) R 12655 12657 10565 0 -1 4194304 1043 0 0 0 69 0 0 0 22 0 1 0 370168647 4169728 851 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134534152 0 0 4096 0 0 0 0 17 1 0 0
/proc/12657/statm: 1018 851 67 122 0 892 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4072

[startup+1.50184 s]
/proc/loadavg: 0.99 0.97 1.09 2/78 12658
/proc/meminfo: memFree=1415480/2055920 swapFree=4169972/4192956
[pid=12657] ppid=12655 vsize=4464 CPUtime=1.49
/proc/12657/stat : 12657 (mxc) R 12655 12657 10565 0 -1 4194304 1144 0 0 0 149 0 0 0 25 0 1 0 370168647 4571136 952 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519220 0 0 4096 0 0 0 0 17 1 0 0
/proc/12657/statm: 1116 952 67 122 0 990 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4464

[startup+3.10103 s]
/proc/loadavg: 0.99 0.97 1.09 2/78 12658
/proc/meminfo: memFree=1414776/2055920 swapFree=4169972/4192956
[pid=12657] ppid=12655 vsize=5256 CPUtime=3.09
/proc/12657/stat : 12657 (mxc) R 12655 12657 10565 0 -1 4194304 1304 0 0 0 308 1 0 0 25 0 1 0 370168647 5382144 1112 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134617009 0 0 4096 0 0 0 0 17 1 0 0
/proc/12657/statm: 1314 1112 67 122 0 1188 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 5256

[startup+6.30141 s]
/proc/loadavg: 0.99 0.97 1.09 2/78 12658
/proc/meminfo: memFree=1413496/2055920 swapFree=4169972/4192956
[pid=12657] ppid=12655 vsize=6252 CPUtime=6.29
/proc/12657/stat : 12657 (mxc) R 12655 12657 10565 0 -1 4194304 1583 0 0 0 628 1 0 0 25 0 1 0 370168647 6402048 1391 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/12657/statm: 1563 1391 67 122 0 1437 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 6252

[startup+12.7012 s]
/proc/loadavg: 0.99 0.97 1.09 2/78 12658
/proc/meminfo: memFree=1412984/2055920 swapFree=4169972/4192956
[pid=12657] ppid=12655 vsize=6500 CPUtime=12.69
/proc/12657/stat : 12657 (mxc) R 12655 12657 10565 0 -1 4194304 1653 0 0 0 1268 1 0 0 25 0 1 0 370168647 6656000 1461 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519249 0 0 4096 0 0 0 0 17 1 0 0
/proc/12657/statm: 1625 1461 67 122 0 1499 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 6500

[startup+25.5017 s]
/proc/loadavg: 0.99 0.97 1.09 2/78 12658
/proc/meminfo: memFree=1412024/2055920 swapFree=4169972/4192956
[pid=12657] ppid=12655 vsize=7428 CPUtime=25.49
/proc/12657/stat : 12657 (mxc) R 12655 12657 10565 0 -1 4194304 1888 0 0 0 2548 1 0 0 25 0 1 0 370168647 7606272 1696 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134529790 0 0 4096 0 0 0 0 17 1 0 0
/proc/12657/statm: 1857 1696 67 122 0 1731 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 7428

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

[startup+27.1019 s]
/proc/loadavg: 0.99 0.97 1.09 2/78 12658
/proc/meminfo: memFree=1411768/2055920 swapFree=4169972/4192956
[pid=12657] ppid=12655 vsize=7876 CPUtime=27.08
/proc/12657/stat : 12657 (mxc) R 12655 12657 10565 0 -1 4194304 2000 0 0 0 2707 1 0 0 25 0 1 0 370168647 8065024 1808 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519280 0 0 4096 0 0 0 0 17 1 0 0
/proc/12657/statm: 1969 1808 67 122 0 1843 0
Current children cumulated CPU time (s) 27.08
Current children cumulated vsize (KiB) 7876

[startup+27.902 s]
/proc/loadavg: 0.99 0.97 1.09 2/78 12658
/proc/meminfo: memFree=1411576/2055920 swapFree=4169972/4192956
[pid=12657] ppid=12655 vsize=7876 CPUtime=27.88
/proc/12657/stat : 12657 (mxc) R 12655 12657 10565 0 -1 4194304 2000 0 0 0 2787 1 0 0 25 0 1 0 370168647 8065024 1808 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/12657/statm: 1969 1808 67 122 0 1843 0
Current children cumulated CPU time (s) 27.88
Current children cumulated vsize (KiB) 7876

[startup+28.302 s]
/proc/loadavg: 0.99 0.97 1.09 2/78 12658
/proc/meminfo: memFree=1411576/2055920 swapFree=4169972/4192956
[pid=12657] ppid=12655 vsize=7876 CPUtime=28.28
/proc/12657/stat : 12657 (mxc) R 12655 12657 10565 0 -1 4194304 2000 0 0 0 2827 1 0 0 25 0 1 0 370168647 8065024 1808 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134528496 0 0 4096 0 0 0 0 17 1 0 0
/proc/12657/statm: 1969 1808 67 122 0 1843 0
Current children cumulated CPU time (s) 28.28
Current children cumulated vsize (KiB) 7876

[startup+28.502 s]
/proc/loadavg: 0.99 0.97 1.09 3/78 12658
/proc/meminfo: memFree=1411576/2055920 swapFree=4169972/4192956
[pid=12657] ppid=12655 vsize=7876 CPUtime=28.49
/proc/12657/stat : 12657 (mxc) R 12655 12657 10565 0 -1 4194304 2000 0 0 0 2848 1 0 0 25 0 1 0 370168647 8065024 1808 18446744073709551615 134512640 135013041 4294956704 18446744073709551615 134519232 0 0 4096 0 0 0 0 17 1 0 0
/proc/12657/statm: 1969 1808 67 122 0 1843 0
Current children cumulated CPU time (s) 28.49
Current children cumulated vsize (KiB) 7876

Child status: 10
Real time (s): 28.5849
CPU time (s): 28.5627
CPU user time (s): 28.5477
CPU system time (s): 0.014997
CPU usage (%): 99.9222
Max. virtual memory (cumulated for all children) (KiB): 7876

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 28.5477
system time used= 0.014997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2002
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= 12
involuntary context switches= 80

runsolver used 0.030995 second user time and 0.081987 second system time

The end

Launcher Data (download as text)

Begin job on node11 on Sat Mar 10 04:49:01 UTC 2007

IDJOB= 333109
IDBENCH= 24596
IDSOLVER= 107
FILE ID= node11/333109-1173502141

PBS_JOBID= 4101099

Free space on /tmp= 66351 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/others/QG7a-gensys-brn100.sat05-3765.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/333109-1173502141/mxc /tmp/evaluation/333109-1173502141/instance-333109-1173502141.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-333109-1173502141 -o ROOT/results/node11/solver-333109-1173502141 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/333109-1173502141/mxc /tmp/evaluation/333109-1173502141/instance-333109-1173502141.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  0a1b9434c65125233161905ac395e7f3

RANDOM SEED= 111561046

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node11.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.243
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		: 3000.243
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:       1419296 kB
Buffers:         51628 kB
Cached:         494816 kB
SwapCached:       2248 kB
Active:         223804 kB
Inactive:       345800 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1419296 kB
SwapTotal:     4192956 kB
SwapFree:      4169972 kB
Dirty:            1352 kB
Writeback:           0 kB
Mapped:          31140 kB
Slab:            52580 kB
Committed_AS:  1156932 kB
PageTables:       1756 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= 66351 MiB

End job on node11 on Sat Mar 10 04:49:30 UTC 2007