Trace number 1717907

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
MiniSat 2.1 (Sat-race'08 Edition)UNSAT 75.0206 75.0605

General information on the benchmark

Nameindustrial/palacios/medium/
blocks-4-ipc5-h22-unknown.cnf
MD5SUM8c6ad18be635cee0d986377c4d06ab11
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark32.97
Satisfiable
(Un)Satisfiability was proved
Number of variables146874
Number of clauses937242
Sum of the clauses size2519136
Maximum clause length417
Minimum clause length1
Number of clauses of size 1125
Number of clauses of size 2791651
Number of clauses of size 3139269
Number of clauses of size 41522
Number of clauses of size 583
Number of clauses of size over 54592

Solver Data 

0.00/0.00	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.89/0.90	c |  Number of variables:        148153                                         |
0.89/0.90	c |  Number of clauses:          936867                                         |
0.89/0.90	c |  Parse time:                   0.79 s                                       |
15.98/16.06	c |  Simplification time:         15.08 s                                       |
15.98/16.06	c |                                                                             |
15.98/16.06	c ============================[ Search Statistics ]==============================
15.98/16.06	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
15.98/16.06	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
15.98/16.06	c ===============================================================================
16.18/16.24	c |       100 |   41686   724384  2592861 |   265607      100     13 |  0.084 % |
16.39/16.50	c |       250 |   41686   724384  2592861 |   292168      250     26 |  0.084 % |
16.78/16.87	c |       475 |   41686   724384  2592861 |   321385      475     34 |  0.084 % |
17.28/17.36	c |       812 |   41686   724384  2592861 |   353523      812     36 |  0.084 % |
17.98/18.03	c |      1318 |   41686   724384  2592861 |   388875     1318     32 |  0.084 % |
19.28/19.34	c |      2077 |   41686   724384  2592861 |   427763     2077     35 |  0.084 % |
20.88/20.94	c |      3216 |   41686   724384  2592861 |   470539     3216     29 |  0.084 % |
23.08/23.19	c |      4924 |   41686   724384  2592861 |   517593     4924     34 |  0.084 % |
27.08/27.11	c |      7486 |   41686   724384  2592861 |   569353     7486     34 |  0.084 % |
33.57/33.63	c |     11330 |   41686   724384  2592861 |   626288    11330     31 |  0.084 % |
42.46/42.50	c |     17096 |   41686   724384  2592861 |   688917    17096     30 |  0.084 % |
54.46/54.52	c |     25745 |   41686   724384  2592861 |   757809    25745     27 |  0.084 % |
69.95/70.04	c |     38719 |   41663   724262  2592213 |   833590    35523     24 |  0.100 % |
74.95/75.04	c ===============================================================================
74.95/75.04	c restarts              : 127
74.95/75.04	c conflicts             : 43938          (587 /sec)
74.95/75.04	c decisions             : 98534          (1317 /sec)
74.95/75.04	c propagations          : 168804918      (2256701 /sec)
74.95/75.04	c conflict literals     : 947490         (36.83 % deleted)
74.95/75.04	c Memory used           : 92.17 MB
74.95/75.04	c CPU time              : 74.8016 s
74.95/75.04	c 
74.95/75.04	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-1717907-1240632117/watcher-1717907-1240632117 -o /tmp/evaluation-result-1717907-1240632117/solver-1717907-1240632117 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1717907-1240632117.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 1.08 2/64 23863
/proc/meminfo: memFree=1571264/2055924 swapFree=4180744/4192956
[pid=23863] ppid=23861 vsize=7744 CPUtime=0
/proc/23863/stat : 23863 (minisat) R 23861 23863 22999 0 -1 4194304 465 0 0 0 0 0 0 0 18 0 1 0 91246157 7929856 449 1992294400 4194304 5092341 548682068832 18446744073709551615 4244968 0 0 4096 3 0 0 0 17 1 0 0
/proc/23863/statm: 1936 449 63 219 0 1714 0

[startup+0.0264289 s]
/proc/loadavg: 0.92 0.98 1.08 2/64 23863
/proc/meminfo: memFree=1571264/2055924 swapFree=4180744/4192956
[pid=23863] ppid=23861 vsize=9432 CPUtime=0.01
/proc/23863/stat : 23863 (minisat) R 23861 23863 22999 0 -1 4194304 974 0 0 0 1 0 0 0 18 0 1 0 91246157 9658368 958 1992294400 4194304 5092341 548682068832 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/23863/statm: 2358 959 63 219 0 2136 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 9432

[startup+0.101444 s]
/proc/loadavg: 0.92 0.98 1.08 2/64 23863
/proc/meminfo: memFree=1571264/2055924 swapFree=4180744/4192956
[pid=23863] ppid=23861 vsize=15356 CPUtime=0.09
/proc/23863/stat : 23863 (minisat) R 23861 23863 22999 0 -1 4194304 2842 0 0 0 8 1 0 0 18 0 1 0 91246157 15724544 2633 1992294400 4194304 5092341 548682068832 18446744073709551615 4270245 0 0 4096 3 0 0 0 17 1 0 0
/proc/23863/statm: 3839 2633 63 219 0 3617 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 15356

[startup+0.301481 s]
/proc/loadavg: 0.92 0.98 1.08 2/64 23863
/proc/meminfo: memFree=1571264/2055924 swapFree=4180744/4192956
[pid=23863] ppid=23861 vsize=31392 CPUtime=0.29
/proc/23863/stat : 23863 (minisat) R 23861 23863 22999 0 -1 4194304 7582 0 0 0 26 3 0 0 19 0 1 0 91246157 32145408 6730 1992294400 4194304 5092341 548682068832 18446744073709551615 4531978 0 0 4096 3 0 0 0 17 1 0 0
/proc/23863/statm: 7848 6730 63 219 0 7626 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 31392

[startup+0.701561 s]
/proc/loadavg: 0.92 0.98 1.08 2/64 23863
/proc/meminfo: memFree=1571264/2055924 swapFree=4180744/4192956
[pid=23863] ppid=23861 vsize=67676 CPUtime=0.69
/proc/23863/stat : 23863 (minisat) R 23861 23863 22999 0 -1 4194304 16974 0 0 0 61 8 0 0 23 0 1 0 91246157 69300224 14982 1992294400 4194304 5092341 548682068832 18446744073709551615 4244968 0 0 4096 3 0 0 0 17 1 0 0
/proc/23863/statm: 16919 14982 63 219 0 16697 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 67676

[startup+1.50172 s]
/proc/loadavg: 0.92 0.98 1.08 2/65 23864
/proc/meminfo: memFree=1493560/2055924 swapFree=4180744/4192956
[pid=23863] ppid=23861 vsize=82192 CPUtime=1.49
/proc/23863/stat : 23863 (minisat) R 23861 23863 22999 0 -1 4194304 21465 0 0 0 138 11 0 0 25 0 1 0 91246157 84164608 19473 1992294400 4194304 5092341 548682068832 18446744073709551615 4219707 0 0 4096 3 0 0 0 17 1 0 0
/proc/23863/statm: 20548 19473 86 219 0 20326 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 82192

[startup+3.10203 s]
/proc/loadavg: 0.92 0.98 1.08 2/65 23864
/proc/meminfo: memFree=1493176/2055924 swapFree=4180744/4192956
[pid=23863] ppid=23861 vsize=91484 CPUtime=3.09
/proc/23863/stat : 23863 (minisat) R 23861 23863 22999 0 -1 4194304 21828 0 0 0 297 12 0 0 25 0 1 0 91246157 93679616 19836 1992294400 4194304 5092341 548682068832 18446744073709551615 4215201 0 0 4096 3 0 0 0 17 1 0 0
/proc/23863/statm: 22871 19836 87 219 0 22649 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 91484

[startup+6.30166 s]
/proc/loadavg: 0.93 0.98 1.08 2/65 23864
/proc/meminfo: memFree=1466232/2055924 swapFree=4180744/4192956
[pid=23863] ppid=23861 vsize=119252 CPUtime=6.29
/proc/23863/stat : 23863 (minisat) R 23861 23863 22999 0 -1 4194304 28229 0 0 0 613 16 0 0 25 0 1 0 91246157 122114048 26237 1992294400 4194304 5092341 548682068832 18446744073709551615 4219508 0 0 4096 3 0 0 0 17 1 0 0
/proc/23863/statm: 29813 26237 87 219 0 29591 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 119252

[startup+12.7019 s]
/proc/loadavg: 0.93 0.98 1.08 2/65 23864
/proc/meminfo: memFree=1464312/2055924 swapFree=4180744/4192956
[pid=23863] ppid=23861 vsize=122592 CPUtime=12.69
/proc/23863/stat : 23863 (minisat) R 23861 23863 22999 0 -1 4194304 28734 0 0 0 1253 16 0 0 25 0 1 0 91246157 125534208 26742 1992294400 4194304 5092341 548682068832 18446744073709551615 4219516 0 0 4096 3 0 0 0 17 1 0 0
/proc/23863/statm: 30648 26742 87 219 0 30426 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 122592

[startup+25.5014 s]
/proc/loadavg: 0.95 0.98 1.08 2/65 23864
/proc/meminfo: memFree=1487224/2055924 swapFree=4180744/4192956
[pid=23863] ppid=23861 vsize=94380 CPUtime=25.48
/proc/23863/stat : 23863 (minisat) R 23861 23863 22999 0 -1 4194304 32392 0 0 0 2530 18 0 0 25 0 1 0 91246157 96645120 21058 1992294400 4194304 5092341 548682068832 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 1 0 0
/proc/23863/statm: 23595 21058 103 219 0 23373 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 94380

[startup+51.1014 s]
/proc/loadavg: 0.96 0.98 1.08 2/65 23864
/proc/meminfo: memFree=1485560/2055924 swapFree=4180744/4192956
[pid=23863] ppid=23861 vsize=94380 CPUtime=51.06
/proc/23863/stat : 23863 (minisat) R 23861 23863 22999 0 -1 4194304 32833 0 0 0 5087 19 0 0 25 0 1 0 91246157 96645120 21499 1992294400 4194304 5092341 548682068832 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/23863/statm: 23595 21499 103 219 0 23373 0
Current children cumulated CPU time (s) 51.06
Current children cumulated vsize (KiB) 94380

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

[startup+63.902 s]
/proc/loadavg: 0.97 0.98 1.08 2/65 23864
/proc/meminfo: memFree=1484728/2055924 swapFree=4180744/4192956
[pid=23863] ppid=23861 vsize=94380 CPUtime=63.86
/proc/23863/stat : 23863 (minisat) R 23861 23863 22999 0 -1 4194304 33028 0 0 0 6366 20 0 0 25 0 1 0 91246157 96645120 21694 1992294400 4194304 5092341 548682068832 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/23863/statm: 23595 21694 103 219 0 23373 0
Current children cumulated CPU time (s) 63.86
Current children cumulated vsize (KiB) 94380

[startup+70.3012 s]
/proc/loadavg: 0.97 0.98 1.08 2/65 23864
/proc/meminfo: memFree=1484472/2055924 swapFree=4180744/4192956
[pid=23863] ppid=23861 vsize=94380 CPUtime=70.26
/proc/23863/stat : 23863 (minisat) R 23861 23863 22999 0 -1 4194304 33110 0 0 0 7006 20 0 0 25 0 1 0 91246157 96645120 21776 1992294400 4194304 5092341 548682068832 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 1 0 0
/proc/23863/statm: 23595 21776 103 219 0 23373 0
Current children cumulated CPU time (s) 70.26
Current children cumulated vsize (KiB) 94380

[startup+73.5018 s]
/proc/loadavg: 0.97 0.98 1.08 2/65 23864
/proc/meminfo: memFree=1484344/2055924 swapFree=4180744/4192956
[pid=23863] ppid=23861 vsize=94380 CPUtime=73.45
/proc/23863/stat : 23863 (minisat) R 23861 23863 22999 0 -1 4194304 33155 0 0 0 7325 20 0 0 25 0 1 0 91246157 96645120 21821 1992294400 4194304 5092341 548682068832 18446744073709551615 4247315 0 0 4096 3 0 0 0 17 1 0 0
/proc/23863/statm: 23595 21821 103 219 0 23373 0
Current children cumulated CPU time (s) 73.45
Current children cumulated vsize (KiB) 94380

[startup+74.302 s]
/proc/loadavg: 0.97 0.98 1.08 2/65 23864
/proc/meminfo: memFree=1484280/2055924 swapFree=4180744/4192956
[pid=23863] ppid=23861 vsize=94380 CPUtime=74.25
/proc/23863/stat : 23863 (minisat) R 23861 23863 22999 0 -1 4194304 33165 0 0 0 7405 20 0 0 25 0 1 0 91246157 96645120 21831 1992294400 4194304 5092341 548682068832 18446744073709551615 4240665 0 0 4096 3 0 0 0 17 1 0 0
/proc/23863/statm: 23595 21831 103 219 0 23373 0
Current children cumulated CPU time (s) 74.25
Current children cumulated vsize (KiB) 94380

[startup+74.7011 s]
/proc/loadavg: 0.97 0.98 1.08 2/65 23864
/proc/meminfo: memFree=1484216/2055924 swapFree=4180744/4192956
[pid=23863] ppid=23861 vsize=94380 CPUtime=74.66
/proc/23863/stat : 23863 (minisat) R 23861 23863 22999 0 -1 4194304 33169 0 0 0 7446 20 0 0 25 0 1 0 91246157 96645120 21835 1992294400 4194304 5092341 548682068832 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 1 0 0
/proc/23863/statm: 23595 21835 103 219 0 23373 0
Current children cumulated CPU time (s) 74.66
Current children cumulated vsize (KiB) 94380

[startup+74.9011 s]
/proc/loadavg: 0.97 0.98 1.08 2/65 23864
/proc/meminfo: memFree=1484216/2055924 swapFree=4180744/4192956
[pid=23863] ppid=23861 vsize=94380 CPUtime=74.85
/proc/23863/stat : 23863 (minisat) R 23861 23863 22999 0 -1 4194304 33171 0 0 0 7465 20 0 0 25 0 1 0 91246157 96645120 21837 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/23863/statm: 23595 21837 103 219 0 23373 0
Current children cumulated CPU time (s) 74.85
Current children cumulated vsize (KiB) 94380

[startup+75.0011 s]
/proc/loadavg: 0.97 0.98 1.08 2/65 23864
/proc/meminfo: memFree=1484216/2055924 swapFree=4180744/4192956
[pid=23863] ppid=23861 vsize=94380 CPUtime=74.95
/proc/23863/stat : 23863 (minisat) R 23861 23863 22999 0 -1 4194304 33172 0 0 0 7475 20 0 0 25 0 1 0 91246157 96645120 21838 1992294400 4194304 5092341 548682068832 18446744073709551615 4250350 0 0 4096 3 0 0 0 17 1 0 0
/proc/23863/statm: 23595 21838 103 219 0 23373 0
Current children cumulated CPU time (s) 74.95
Current children cumulated vsize (KiB) 94380

Child status: 20
Real time (s): 75.0605
CPU time (s): 75.0206
CPU user time (s): 74.8016
CPU system time (s): 0.218966
CPU usage (%): 99.9468
Max. virtual memory (cumulated for all children) (KiB): 133796

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 74.8016
system time used= 0.218966
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 33182
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= 234

runsolver used 0.076988 second user time and 0.145977 second system time

The end

Launcher Data 

Begin job on node6 at 2009-04-25 06:01:58
IDJOB=1717907
IDBENCH=20430
IDSOLVER=546
FILE ID=node6/1717907-1240632117
PBS_JOBID= 9186355
Free space on /tmp= 66304 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT07/industrial/palacios/medium/blocks-4-ipc5-h22-unknown.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1717907-1240632117/watcher-1717907-1240632117 -o /tmp/evaluation-result-1717907-1240632117/solver-1717907-1240632117 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1717907-1240632117.cnf

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

MD5SUM BENCH= 8c6ad18be635cee0d986377c4d06ab11
RANDOM SEED=1632370244

node6.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		: 3000.281
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		: 3000.281
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:      2055924 kB
MemFree:       1571808 kB
Buffers:         53144 kB
Cached:         357484 kB
SwapCached:       6892 kB
Active:         173112 kB
Inactive:       246844 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1571808 kB
SwapTotal:     4192956 kB
SwapFree:      4180744 kB
Dirty:           18080 kB
Writeback:           0 kB
Mapped:          14060 kB
Slab:            50240 kB
Committed_AS:   352144 kB
PageTables:       1452 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= 66304 MiB
End job on node6 at 2009-04-25 06:03:13