Trace number 311069

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 106.089 106.132

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1209647106-12-SAT.cnf
MD5SUM5b71a13667daed42fef777f7d5fe2376
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.05599
Satisfiable
(Un)Satisfiability was proved
Number of variables1295
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

105.99/106.12	c MXC attempting /tmp/evaluation/311069-1172564393/instance-311069-1172564393.cnf
105.99/106.12	c 0 assignments made, starting to guess now
105.99/106.12	c ===================================[MXC]=====================================
105.99/106.12	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
105.99/106.12	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
105.99/106.12	c =============================================================================
105.99/106.12	c |         0 |    3221     9663 |    1073       0       0     nan |  0.000 % |
105.99/106.12	c |       102 |    3221     9663 |    1180     101    1868    18.5 |  0.000 % |
105.99/106.12	c |       252 |    3221     9663 |    1298     250    4676    18.7 |  0.000 % |
105.99/106.12	c |       477 |    3221     9663 |    1428     475    8779    18.5 |  0.000 % |
105.99/106.12	c |       814 |    3221     9663 |    1570     812   16987    20.9 |  0.000 % |
105.99/106.12	c |      1320 |    3221     9663 |    1728    1317   26115    19.8 |  0.000 % |
105.99/106.12	c |      2080 |    3221     9663 |    1900    1213   25447    21.0 |  0.000 % |
105.99/106.12	c |      3219 |    3221     9663 |    2090    1400   29637    21.2 |  0.000 % |
105.99/106.12	c |      4928 |    3221     9663 |    2300    2062   46164    22.4 |  0.000 % |
105.99/106.12	c |      7490 |    3221     9663 |    2530    1180   24355    20.6 |  0.000 % |
105.99/106.12	c |     11334 |    3221     9663 |    2783    2497   57551    23.0 |  0.000 % |
105.99/106.12	c |     17100 |    3221     9663 |    3061    2697   58567    21.7 |  0.000 % |
105.99/106.12	c |     25750 |    3221     9663 |    3367    2167   40350    18.6 |  0.000 % |
105.99/106.12	c |     38724 |    3221     9663 |    3704    3359   68636    20.4 |  0.000 % |
105.99/106.12	c |     58185 |    3221     9663 |    4074    2452   47785    19.5 |  0.000 % |
105.99/106.12	c |     87379 |    3221     9663 |    4482    3166   85629    27.0 |  0.000 % |
105.99/106.12	c |    131168 |    3221     9663 |    4930    4395   87851    20.0 |  0.000 % |
105.99/106.12	c |    196855 |    3221     9663 |    5423    3550   63623    17.9 |  0.000 % |
105.99/106.12	c |    295382 |    3221     9663 |    5965    4581   99640    21.8 |  0.000 % |
105.99/106.12	c |    443171 |    3221     9663 |    6562    3385   62143    18.4 |  0.000 % |
105.99/106.12	c |    664856 |    3221     9663 |    7218    5470   95322    17.4 |  0.000 % |
105.99/106.12	c 106.100s elapsed
105.99/106.12	c restarts: 20
105.99/106.12	c decisions: 1132649
105.99/106.12	c propagations: 156449902
105.99/106.12	c conflicts: 914376
105.99/106.12	s SATISFIABLE
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Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node23/watcher-311069-1172564393 -o ROOT/results/node23/solver-311069-1172564393 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311069-1172564393/mxc /tmp/evaluation/311069-1172564393/instance-311069-1172564393.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.87 0.97 0.99 3/77 22203
/proc/meminfo: memFree=1800928/2055920 swapFree=4145516/4192956
[pid=22203] ppid=22201 vsize=1200 CPUtime=0
/proc/22203/stat : 22203 (mxc) R 22201 22203 21362 0 -1 4194304 170 0 0 0 0 0 0 0 18 0 1 0 276393217 1228800 154 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134686744 0 0 4096 0 0 0 0 17 1 0 0
/proc/22203/statm: 300 154 57 122 0 174 0

[startup+0.106515 s]
/proc/loadavg: 0.87 0.97 0.99 3/77 22203
/proc/meminfo: memFree=1800928/2055920 swapFree=4145516/4192956
[pid=22203] ppid=22201 vsize=1332 CPUtime=0.1
/proc/22203/stat : 22203 (mxc) R 22201 22203 21362 0 -1 4194304 210 0 0 0 10 0 0 0 18 0 1 0 276393217 1363968 194 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/22203/statm: 333 194 59 122 0 207 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1332

[startup+0.514561 s]
/proc/loadavg: 0.87 0.97 0.99 3/77 22203
/proc/meminfo: memFree=1800928/2055920 swapFree=4145516/4192956
[pid=22203] ppid=22201 vsize=1604 CPUtime=0.51
/proc/22203/stat : 22203 (mxc) R 22201 22203 21362 0 -1 4194304 270 0 0 0 51 0 0 0 22 0 1 0 276393217 1642496 252 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134535026 0 0 4096 0 0 0 0 17 1 0 0
/proc/22203/statm: 401 252 67 122 0 275 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 1604

[startup+1.33465 s]
/proc/loadavg: 0.87 0.97 0.99 2/78 22204
/proc/meminfo: memFree=1800088/2055920 swapFree=4145516/4192956
[pid=22203] ppid=22201 vsize=1724 CPUtime=1.33
/proc/22203/stat : 22203 (mxc) R 22201 22203 21362 0 -1 4194304 295 0 0 0 133 0 0 0 25 0 1 0 276393217 1765376 277 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134530261 0 0 4096 0 0 0 0 17 1 0 0
/proc/22203/statm: 431 277 67 122 0 305 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 1724

[startup+2.97084 s]
/proc/loadavg: 0.87 0.97 0.99 2/78 22204
/proc/meminfo: memFree=1799832/2055920 swapFree=4145516/4192956
[pid=22203] ppid=22201 vsize=1844 CPUtime=2.96
/proc/22203/stat : 22203 (mxc) R 22201 22203 21362 0 -1 4194304 340 0 0 0 296 0 0 0 25 0 1 0 276393217 1888256 322 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519924 0 0 4096 0 0 0 0 17 1 0 0
/proc/22203/statm: 461 322 67 122 0 335 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 1844

[startup+6.24721 s]
/proc/loadavg: 0.88 0.97 0.99 2/78 22204
/proc/meminfo: memFree=1799576/2055920 swapFree=4145516/4192956
[pid=22203] ppid=22201 vsize=2100 CPUtime=6.24
/proc/22203/stat : 22203 (mxc) R 22201 22203 21362 0 -1 4194304 395 0 0 0 624 0 0 0 25 0 1 0 276393217 2150400 377 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519927 0 0 4096 0 0 0 0 17 1 0 0
/proc/22203/statm: 525 377 67 122 0 399 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 2100

[startup+12.7039 s]
/proc/loadavg: 0.89 0.97 0.99 2/78 22204
/proc/meminfo: memFree=1799256/2055920 swapFree=4145516/4192956
[pid=22203] ppid=22201 vsize=2220 CPUtime=12.69
/proc/22203/stat : 22203 (mxc) R 22201 22203 21362 0 -1 4194304 444 0 0 0 1269 0 0 0 25 0 1 0 276393217 2273280 426 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519954 0 0 4096 0 0 0 0 17 1 0 0
/proc/22203/statm: 555 426 67 122 0 429 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2220

[startup+25.5124 s]
/proc/loadavg: 0.91 0.97 0.99 2/78 22204
/proc/meminfo: memFree=1798936/2055920 swapFree=4145516/4192956
[pid=22203] ppid=22201 vsize=2676 CPUtime=25.5
/proc/22203/stat : 22203 (mxc) R 22201 22203 21362 0 -1 4194304 535 0 0 0 2550 0 0 0 25 0 1 0 276393217 2740224 517 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134531206 0 0 4096 0 0 0 0 17 1 0 0
/proc/22203/statm: 669 517 67 122 0 543 0
Current children cumulated CPU time (s) 25.5
Current children cumulated vsize (KiB) 2676

[startup+51.1223 s]
/proc/loadavg: 0.94 0.97 0.99 2/78 22204
/proc/meminfo: memFree=1798552/2055920 swapFree=4145516/4192956
[pid=22203] ppid=22201 vsize=3028 CPUtime=51.09
/proc/22203/stat : 22203 (mxc) R 22201 22203 21362 0 -1 4194304 624 0 0 0 5109 0 0 0 25 0 1 0 276393217 3100672 606 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519284 0 0 4096 0 0 0 0 17 1 0 0
/proc/22203/statm: 757 606 67 122 0 631 0
Current children cumulated CPU time (s) 51.09
Current children cumulated vsize (KiB) 3028

[startup+102.342 s]
/proc/loadavg: 0.97 0.97 0.99 2/78 22204
/proc/meminfo: memFree=1797912/2055920 swapFree=4145516/4192956
[pid=22203] ppid=22201 vsize=3596 CPUtime=102.31
/proc/22203/stat : 22203 (mxc) R 22201 22203 21362 0 -1 4194304 781 0 0 0 10230 1 0 0 25 0 1 0 276393217 3682304 763 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/22203/statm: 899 763 67 122 0 773 0
Current children cumulated CPU time (s) 102.31
Current children cumulated vsize (KiB) 3596

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

[startup+103.264 s]
/proc/loadavg: 0.97 0.97 0.99 2/78 22204
/proc/meminfo: memFree=1797912/2055920 swapFree=4145516/4192956
[pid=22203] ppid=22201 vsize=3596 CPUtime=103.23
/proc/22203/stat : 22203 (mxc) R 22201 22203 21362 0 -1 4194304 781 0 0 0 10322 1 0 0 25 0 1 0 276393217 3682304 763 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519890 0 0 4096 0 0 0 0 17 1 0 0
/proc/22203/statm: 899 763 67 122 0 773 0
Current children cumulated CPU time (s) 103.23
Current children cumulated vsize (KiB) 3596

[startup+104.904 s]
/proc/loadavg: 0.98 0.97 0.99 2/78 22204
/proc/meminfo: memFree=1797912/2055920 swapFree=4145516/4192956
[pid=22203] ppid=22201 vsize=3596 CPUtime=104.87
/proc/22203/stat : 22203 (mxc) R 22201 22203 21362 0 -1 4194304 784 0 0 0 10486 1 0 0 25 0 1 0 276393217 3682304 766 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519992 0 0 4096 0 0 0 0 17 1 0 0
/proc/22203/statm: 899 766 67 122 0 773 0
Current children cumulated CPU time (s) 104.87
Current children cumulated vsize (KiB) 3596

[startup+105.721 s]
/proc/loadavg: 0.98 0.97 0.99 2/78 22204
/proc/meminfo: memFree=1797912/2055920 swapFree=4145516/4192956
[pid=22203] ppid=22201 vsize=3724 CPUtime=105.68
/proc/22203/stat : 22203 (mxc) R 22201 22203 21362 0 -1 4194304 801 0 0 0 10567 1 0 0 25 0 1 0 276393217 3813376 783 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519212 0 0 4096 0 0 0 0 17 1 0 0
/proc/22203/statm: 931 783 67 122 0 805 0
Current children cumulated CPU time (s) 105.68
Current children cumulated vsize (KiB) 3724

[startup+105.925 s]
/proc/loadavg: 0.98 0.97 0.99 2/78 22204
/proc/meminfo: memFree=1797784/2055920 swapFree=4145516/4192956
[pid=22203] ppid=22201 vsize=3724 CPUtime=105.89
/proc/22203/stat : 22203 (mxc) R 22201 22203 21362 0 -1 4194304 801 0 0 0 10588 1 0 0 25 0 1 0 276393217 3813376 783 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519319 0 0 4096 0 0 0 0 17 1 0 0
/proc/22203/statm: 931 783 67 122 0 805 0
Current children cumulated CPU time (s) 105.89
Current children cumulated vsize (KiB) 3724

[startup+106.031 s]
/proc/loadavg: 0.98 0.97 0.99 2/78 22204
/proc/meminfo: memFree=1797784/2055920 swapFree=4145516/4192956
[pid=22203] ppid=22201 vsize=3724 CPUtime=105.99
/proc/22203/stat : 22203 (mxc) R 22201 22203 21362 0 -1 4194304 801 0 0 0 10598 1 0 0 25 0 1 0 276393217 3813376 783 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519659 0 0 4096 0 0 0 0 17 1 0 0
/proc/22203/statm: 931 783 67 122 0 805 0
Current children cumulated CPU time (s) 105.99
Current children cumulated vsize (KiB) 3724

Child status: 10
Real time (s): 106.132
CPU time (s): 106.089
CPU user time (s): 106.075
CPU system time (s): 0.013997
CPU usage (%): 99.9597
Max. virtual memory (cumulated for all children) (KiB): 3756

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 106.075
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 803
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= 11
involuntary context switches= 189

runsolver used 0.12998 second user time and 0.255961 second system time

The end

Launcher Data (download as text)

Begin job on node23 on Tue Feb 27 08:19:53 UTC 2007

IDJOB= 311069
IDBENCH= 20304
IDSOLVER= 107
FILE ID= node23/311069-1172564393

PBS_JOBID= 3971885

Free space on /tmp= 66560 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1209647106-12-SAT.cnf
COMMAND LINE= /tmp/evaluation/311069-1172564393/mxc /tmp/evaluation/311069-1172564393/instance-311069-1172564393.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node23/watcher-311069-1172564393 -o ROOT/results/node23/solver-311069-1172564393 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311069-1172564393/mxc /tmp/evaluation/311069-1172564393/instance-311069-1172564393.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  5b71a13667daed42fef777f7d5fe2376

RANDOM SEED= 112322813

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node23.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		: 3000.216
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		: 3000.216
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:       1801336 kB
Buffers:         37892 kB
Cached:         149992 kB
SwapCached:      15164 kB
Active:         115236 kB
Inactive:       100228 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1801336 kB
SwapTotal:     4192956 kB
SwapFree:      4145516 kB
Dirty:             824 kB
Writeback:           0 kB
Mapped:          30196 kB
Slab:            24784 kB
Committed_AS:   770016 kB
PageTables:       1696 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= 66560 MiB

End job on node23 on Tue Feb 27 08:21:40 UTC 2007