Trace number 1561993

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
picosat 913SAT 0.524919 0.525989

General information on the benchmark

NameCRAFTED/
edgematching/all/em_7_3_6_all.cnf
MD5SUM3264a66e18d5550049c950d1156ee464
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.524919
Satisfiable
(Un)Satisfiability was proved
Number of variables1473
Number of clauses30387
Sum of the clauses size75224
Maximum clause length25
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 221205
Number of clauses of size 37024
Number of clauses of size 4708
Number of clauses of size 51300
Number of clauses of size over 5150

Solver Data 

0.00/0.00	c PicoSAT SAT Solver Version 913
0.00/0.00	c Copyright (c) 2006 - 2009 Armin Biere JKU Linz
0.00/0.00	c gcc -Wall -Wextra -m32 -static -DNDEBUG -O3 -fomit-frame-pointer -finline-limit=1000000
0.00/0.00	c
0.00/0.00	c parsing HOME/instance-1561993-1238769915.cnf
0.00/0.00	c parsed header 'p cnf 1473 30387'
0.04/0.05	c initialized 1473 variables
0.04/0.05	c found 30387 non trivial clauses
0.04/0.05	c
0.04/0.05	c random number generator seed 0
0.04/0.05	c 
0.04/0.05	c  seconds     variables   original    learned     agility
0.04/0.05	c         level        used      conflicts    limit          MB
0.04/0.05	c 
0.04/0.05	c s   0.1   0.0  1381  12.5  9090    24     0     0   0.0   0.7 
0.04/0.05	c 
0.04/0.05	c initial reduction limit 4591 clauses
0.04/0.05	c 
0.04/0.05	c +   0.1 222.1  1381  54.7  9090   124    99  5050   6.5   0.7 
0.04/0.05	c R   0.1 222.1  1381  54.7  9090   124    99  5050   6.5   0.7 
0.04/0.06	c +   0.1 142.4  1381  91.6  9090   274   245  5555   6.8   0.7 
0.04/0.07	c R   0.1 138.3  1381  97.6  9090   424   393  5555   9.5   0.7 
0.04/0.08	c +   0.1 130.1  1381  98.8  9090   499   465  6110   9.5   0.7 
0.09/0.10	c +   0.1 125.9  1381  99.9  9090   836   798  6721   8.1   0.8 
0.09/0.13	c R   0.1 132.4  1381  99.9  9090  1229  1189  6721   8.8   0.9 
0.09/0.14	c +   0.1 129.5  1381  99.9  9090  1341  1301  7393   8.5   1.0 
0.09/0.19	c +   0.2 122.0  1381  99.9  9090  2098  2051  8132   9.7   1.1 
0.19/0.28	c +   0.3 121.4  1381 100.0  9090  3233  3175  8945   8.5   1.4 
0.19/0.28	c R   0.3 121.4  1381 100.0  9090  3238  3180  8945   8.5   1.4 
0.39/0.41	c +   0.4 117.2  1381 100.0  9090  4935  4869  9839   8.6   1.7 
0.49/0.52	c 1   0.5 116.6  1381 100.0  9090  6095  6021  9839   9.2   2.1 
0.49/0.52	c 
0.49/0.52	c  seconds     variables   original    learned     agility
0.49/0.52	c         level        used      conflicts    limit          MB
0.49/0.52	c 
0.49/0.52	s SATISFIABLE
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0.49/0.52	v -1004 -1005 -1006 -1007 -1008 -1009 -1010 -1011 -1012 -1013 -1014 -1015 -1016
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0.49/0.52	v -1043 -1044 -1045 1046 -1047 -1048 1049 -1050 -1051 1052 -1053 -1054 -1055
0.49/0.52	v 1056 -1057 1058 -1059 -1060 1061 -1062 -1063 1064 -1065 -1066 -1067 -1068
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0.49/0.52	v -1355 -1356 1357 -1358 -1359 -1360 -1361 -1362 -1363 -1364 -1365 -1366 1367
0.49/0.52	v -1368 -1369 1370 -1371 -1372 -1373 -1374 -1375 -1376 -1377 1378 -1379 -1380
0.49/0.52	v -1381 1382 -1383 -1384 -1385 1386 -1387 -1388 -1389 -1390 -1391 -1392 1393
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0.49/0.52	v -1407 -1408 -1409 -1410 -1411 -1412 1413 -1414 1415 -1416 -1417 -1418 -1419
0.49/0.52	v -1420 -1421 1422 1423 -1424 -1425 -1426 -1427 -1428 -1429 -1430 -1431 1432
0.49/0.52	v -1433 -1434 -1435 -1436 1437 -1438 -1439 -1440 1441 -1442 -1443 -1444 -1445
0.49/0.52	v -1446 -1447 -1448 1449 -1450 -1451 -1452 -1453 1454 -1455 -1456 -1457 1458
0.49/0.52	v -1459 1460 -1461 -1462 1463 -1464 -1465 1466 -1467 1468 -1469 -1470 1471
0.49/0.52	v -1472 -1473 0
0.49/0.52	c
0.49/0.52	c 0 iterations
0.49/0.52	c 29 restarts
0.49/0.52	c 24 failed literals
0.49/0.52	c 6095 conflicts
0.49/0.52	c 31157 decisions
0.49/0.52	c 92 fixed variables
0.49/0.52	c 324034 learned literals
0.49/0.52	c 13.0% deleted literals
0.49/0.52	c 922830 propagations
0.49/0.52	c 100.0% variables used
0.49/0.52	c 0.5 seconds in library
0.49/0.52	c 1.8 megaprops/second
0.49/0.52	c 1 simplifications
0.49/0.52	c 0 reductions
0.49/0.52	c 0.0 MB recycled
0.49/0.52	c 2.1 MB maximally allocated
0.49/0.52	c 0.5 seconds total run time

Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1561993-1238769915/watcher-1561993-1238769915 -o /tmp/evaluation-result-1561993-1238769915/solver-1561993-1238769915 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1561993-1238769915.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: 1.00 1.00 1.00 2/64 24351
/proc/meminfo: memFree=1579792/2055920 swapFree=4178508/4192956
[pid=24351] ppid=24349 vsize=1044 CPUtime=0
/proc/24351/stat : 24351 (picosat) R 24349 24351 23992 0 -1 4194304 158 0 0 0 0 0 0 0 18 0 1 0 1149653818 1069056 143 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/24351/statm: 261 143 56 152 0 107 0

[startup+0.0441219 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 24351
/proc/meminfo: memFree=1579792/2055920 swapFree=4178508/4192956
[pid=24351] ppid=24349 vsize=1500 CPUtime=0.04
/proc/24351/stat : 24351 (picosat) R 24349 24351 23992 0 -1 4194304 261 0 0 0 4 0 0 0 18 0 1 0 1149653818 1536000 246 1992294400 134512640 135137933 4294956224 18446744073709551615 134549147 0 0 4096 0 0 0 0 17 1 0 0
/proc/24351/statm: 375 246 61 152 0 221 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1500

[startup+0.101128 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 24351
/proc/meminfo: memFree=1579792/2055920 swapFree=4178508/4192956
[pid=24351] ppid=24349 vsize=1632 CPUtime=0.09
/proc/24351/stat : 24351 (picosat) R 24349 24351 23992 0 -1 4194304 307 0 0 0 9 0 0 0 18 0 1 0 1149653818 1671168 292 1992294400 134512640 135137933 4294956224 18446744073709551615 134545662 0 0 4096 0 0 0 0 17 1 0 0
/proc/24351/statm: 408 292 69 152 0 254 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1632

[startup+0.30115 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 24351
/proc/meminfo: memFree=1579792/2055920 swapFree=4178508/4192956
[pid=24351] ppid=24349 vsize=2292 CPUtime=0.29
/proc/24351/stat : 24351 (picosat) R 24349 24351 23992 0 -1 4194304 465 0 0 0 29 0 0 0 19 0 1 0 1149653818 2347008 450 1992294400 134512640 135137933 4294956224 18446744073709551615 134668231 0 0 4096 0 0 0 0 17 1 0 0
/proc/24351/statm: 573 450 69 152 0 419 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2292

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

[startup+0.501173 s]
/proc/loadavg: 1.00 1.00 1.00 2/64 24351
/proc/meminfo: memFree=1579792/2055920 swapFree=4178508/4192956
[pid=24351] ppid=24349 vsize=2844 CPUtime=0.49
/proc/24351/stat : 24351 (picosat) R 24349 24351 23992 0 -1 4194304 617 0 0 0 49 0 0 0 20 0 1 0 1149653818 2912256 602 1992294400 134512640 135137933 4294956224 18446744073709551615 134668310 0 0 4096 0 0 0 0 17 1 0 0
/proc/24351/statm: 711 602 69 152 0 557 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 2844

Child status: 10
Real time (s): 0.525989
CPU time (s): 0.524919
CPU user time (s): 0.51992
CPU system time (s): 0.004999
CPU usage (%): 99.7966
Max. virtual memory (cumulated for all children) (KiB): 2844

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.51992
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 636
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= 4
involuntary context switches= 0

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node62 at 2009-04-03 16:45:15
IDJOB=1561993
IDBENCH=70926
IDSOLVER=506
FILE ID=node62/1561993-1238769915
PBS_JOBID= 9085508
Free space on /tmp= 66552 MiB

SOLVER NAME= picosat 913
BENCH NAME= SAT09/APPLICATIONS/edgematching/all/em_7_3_6_all.cnf
COMMAND LINE= HOME/picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1561993-1238769915/watcher-1561993-1238769915 -o /tmp/evaluation-result-1561993-1238769915/solver-1561993-1238769915 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1561993-1238769915.cnf

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

MD5SUM BENCH= 3264a66e18d5550049c950d1156ee464
RANDOM SEED=1120969504

node62.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		: 3000.232
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		: 3000.232
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:       1580336 kB
Buffers:         91796 kB
Cached:         283924 kB
SwapCached:       7732 kB
Active:          97476 kB
Inactive:       287648 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1580336 kB
SwapTotal:     4192956 kB
SwapFree:      4178508 kB
Dirty:            1184 kB
Writeback:           0 kB
Mapped:          15040 kB
Slab:            76124 kB
Committed_AS:  2971284 kB
PageTables:       1460 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66552 MiB
End job on node62 at 2009-04-03 16:45:16