Trace number 1773472

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 65.2501 65.2761

General information on the benchmark

Namemanol-pipe-c6bidw_i.cnf
MD5SUM8aeb1eb6b7bf22d54183762fb5b6410c
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark46.6529
Satisfiable
(Un)Satisfiability was proved
Number of variables96089
Number of clauses283993
Sum of the clauses size662649
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 2189328
Number of clauses of size 394664
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

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 |                                                                             |
0.29/0.36	c |  Number of variables:         96089                                         |
0.29/0.36	c |  Number of clauses:          283992                                         |
0.29/0.36	c |  Parse time:                   0.33 s                                       |
1.79/1.89	c |  Simplification time:          1.51 s                                       |
1.79/1.89	c |                                                                             |
1.79/1.89	c ============================[ Search Statistics ]==============================
1.79/1.89	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
1.79/1.89	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
1.79/1.89	c ===============================================================================
1.89/1.94	c |       100 |   20988   128828   538741 |    47236       99     13 |  0.150 % |
1.89/1.98	c |       250 |   20943   128828   538741 |    51960      245     11 |  0.197 % |
2.09/2.12	c |       475 |   20943   128828   538741 |    57156      470     12 |  0.197 % |
2.09/2.17	c |       812 |   20899   128828   538741 |    62872      806     12 |  0.242 % |
2.19/2.26	c |      1318 |   20826   125843   526975 |    69159     1295     13 |  0.318 % |
2.29/2.36	c |      2077 |   20567   125843   526975 |    76075     2050     15 |  0.588 % |
2.49/2.52	c |      3216 |   20533   125843   526975 |    83683     3184     15 |  0.623 % |
2.89/2.91	c |      4924 |   20522   122173   512755 |    92051     4795     16 |  0.635 % |
3.19/3.22	c |      7486 |   20522   122071   512412 |   101256     7353     16 |  0.635 % |
3.69/3.74	c |     11330 |   20506   121851   511627 |   111382    11186     16 |  0.651 % |
4.59/4.67	c |     17096 |   20504   121826   511560 |   122520    16950     16 |  0.654 % |
5.89/5.94	c |     25745 |   20485   121740   511332 |   134772    25595     17 |  0.673 % |
7.49/7.58	c |     38719 |   20485   121641   511051 |   148249    38567     18 |  0.673 % |
11.29/11.35	c |     58180 |   20441   121232   509373 |   163074    58025     18 |  0.719 % |
17.49/17.50	c |     87372 |   19731   114771   477677 |   179382    72824     17 |  1.458 % |
27.68/27.75	c |    131161 |   19527   112993   469093 |   197320   113855     20 |  1.670 % |
48.97/49.08	c |    196845 |   19492   112632   467881 |   217052   179523     20 |  1.707 % |
65.16/65.26	c ===============================================================================
65.16/65.26	c restarts              : 556
65.16/65.26	c conflicts             : 240821         (3699 /sec)
65.16/65.26	c decisions             : 1262897        (19396 /sec)
65.16/65.26	c propagations          : 67290299       (1033485 /sec)
65.16/65.26	c conflict literals     : 5232151        (27.79 % deleted)
65.16/65.26	c Memory used           : 62.71 MB
65.16/65.26	c CPU time              : 65.1101 s
65.16/65.26	c 
65.16/65.26	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-1773472-1241211619/watcher-1773472-1241211619 -o /tmp/evaluation-result-1773472-1241211619/solver-1773472-1241211619 -C 10000 -W 12000 -M 1800 HOME/minisat HOME/instance-1773472-1241211619.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 28712
/proc/meminfo: memFree=1943160/2055920 swapFree=4181332/4192956
[pid=28712] ppid=28710 vsize=7612 CPUtime=0
/proc/28712/stat : 28712 (minisat) R 28710 28712 28594 0 -1 4194304 423 0 0 0 0 0 0 0 18 0 1 0 149190490 7794688 407 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/28712/statm: 1903 407 63 219 0 1681 0

[startup+0.0842789 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 28712
/proc/meminfo: memFree=1943160/2055920 swapFree=4181332/4192956
[pid=28712] ppid=28710 vsize=13764 CPUtime=0.08
/proc/28712/stat : 28712 (minisat) R 28710 28712 28594 0 -1 4194304 2224 0 0 0 7 1 0 0 18 0 1 0 149190490 14094336 2106 1992294400 4194304 5092341 548682068848 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/28712/statm: 3441 2106 63 219 0 3219 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 13764

[startup+0.10128 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 28712
/proc/meminfo: memFree=1943160/2055920 swapFree=4181332/4192956
[pid=28712] ppid=28710 vsize=15356 CPUtime=0.09
/proc/28712/stat : 28712 (minisat) R 28710 28712 28594 0 -1 4194304 2633 0 0 0 8 1 0 0 18 0 1 0 149190490 15724544 2507 1992294400 4194304 5092341 548682068848 18446744073709551615 4210832 0 0 4096 3 0 0 0 17 1 0 0
/proc/28712/statm: 3839 2508 63 219 0 3617 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 15356

[startup+0.301299 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 28712
/proc/meminfo: memFree=1943160/2055920 swapFree=4181332/4192956
[pid=28712] ppid=28710 vsize=29068 CPUtime=0.29
/proc/28712/stat : 28712 (minisat) R 28710 28712 28594 0 -1 4194304 6971 0 0 0 27 2 0 0 19 0 1 0 149190490 29765632 6383 1992294400 4194304 5092341 548682068848 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 1 0 0
/proc/28712/statm: 7267 6384 63 219 0 7045 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 29068

[startup+0.701339 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 28712
/proc/meminfo: memFree=1943160/2055920 swapFree=4181332/4192956
[pid=28712] ppid=28710 vsize=40892 CPUtime=0.69
/proc/28712/stat : 28712 (minisat) R 28710 28712 28594 0 -1 4194304 9567 0 0 0 66 3 0 0 24 0 1 0 149190490 41873408 8950 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/28712/statm: 10223 8950 87 219 0 10001 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 40892

[startup+1.50142 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28713
/proc/meminfo: memFree=1904240/2055920 swapFree=4181332/4192956
[pid=28712] ppid=28710 vsize=48240 CPUtime=1.49
/proc/28712/stat : 28712 (minisat) R 28710 28712 28594 0 -1 4194304 11493 0 0 0 145 4 0 0 25 0 1 0 149190490 49397760 10876 1992294400 4194304 5092341 548682068848 18446744073709551615 4222830 0 0 4096 3 0 0 0 17 1 0 0
/proc/28712/statm: 12060 10877 87 219 0 11838 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 48240

[startup+3.10158 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28713
/proc/meminfo: memFree=1911216/2055920 swapFree=4181332/4192956
[pid=28712] ppid=28710 vsize=38220 CPUtime=3.09
/proc/28712/stat : 28712 (minisat) R 28710 28712 28594 0 -1 4194304 12426 0 0 0 304 5 0 0 25 0 1 0 149190490 39137280 8085 1992294400 4194304 5092341 548682068848 18446744073709551615 4240650 0 0 4096 3 0 0 0 17 1 0 0
/proc/28712/statm: 9555 8085 103 219 0 9333 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 38220

[startup+6.3019 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28713
/proc/meminfo: memFree=1909552/2055920 swapFree=4181332/4192956
[pid=28712] ppid=28710 vsize=38220 CPUtime=6.29
/proc/28712/stat : 28712 (minisat) R 28710 28712 28594 0 -1 4194304 12847 0 0 0 623 6 0 0 25 0 1 0 149190490 39137280 8506 1992294400 4194304 5092341 548682068848 18446744073709551615 4241876 0 0 4096 3 0 0 0 17 1 0 0
/proc/28712/statm: 9555 8506 103 219 0 9333 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 38220

[startup+12.7015 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28713
/proc/meminfo: memFree=1906224/2055920 swapFree=4181332/4192956
[pid=28712] ppid=28710 vsize=44708 CPUtime=12.69
/proc/28712/stat : 28712 (minisat) R 28710 28712 28594 0 -1 4194304 13637 0 0 0 1262 7 0 0 25 0 1 0 149190490 45780992 9296 1992294400 4194304 5092341 548682068848 18446744073709551615 4240665 0 0 4096 3 0 0 0 17 1 0 0
/proc/28712/statm: 11177 9296 103 219 0 10955 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 44708

[startup+25.5018 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28713
/proc/meminfo: memFree=1900144/2055920 swapFree=4181332/4192956
[pid=28712] ppid=28710 vsize=50548 CPUtime=25.48
/proc/28712/stat : 28712 (minisat) R 28710 28712 28594 0 -1 4194304 15111 0 0 0 2540 8 0 0 25 0 1 0 149190490 51761152 10770 1992294400 4194304 5092341 548682068848 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/28712/statm: 12637 10770 103 219 0 12415 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 50548

[startup+51.1014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28719
/proc/meminfo: memFree=1890288/2055920 swapFree=4181332/4192956
[pid=28712] ppid=28710 vsize=61984 CPUtime=51.07
/proc/28712/stat : 28712 (minisat) R 28710 28712 28594 0 -1 4194304 17593 0 0 0 5096 11 0 0 25 0 1 0 149190490 63471616 13252 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/28712/statm: 15496 13252 103 219 0 15274 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 61984

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

[startup+57.502 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28719
/proc/meminfo: memFree=1886640/2055920 swapFree=4181332/4192956
[pid=28712] ppid=28710 vsize=62972 CPUtime=57.46
/proc/28712/stat : 28712 (minisat) R 28710 28712 28594 0 -1 4194304 18515 0 0 0 5735 11 0 0 25 0 1 0 149190490 64483328 14174 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/28712/statm: 15743 14174 103 219 0 15521 0
Current children cumulated CPU time (s) 57.46
Current children cumulated vsize (KiB) 62972

[startup+60.7013 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28719
/proc/meminfo: memFree=1884848/2055920 swapFree=4181332/4192956
[pid=28712] ppid=28710 vsize=64216 CPUtime=60.67
/proc/28712/stat : 28712 (minisat) R 28710 28712 28594 0 -1 4194304 18936 0 0 0 6055 12 0 0 25 0 1 0 149190490 65757184 14595 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/28712/statm: 16054 14595 103 219 0 15832 0
Current children cumulated CPU time (s) 60.67
Current children cumulated vsize (KiB) 64216

[startup+62.3015 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28719
/proc/meminfo: memFree=1884656/2055920 swapFree=4181332/4192956
[pid=28712] ppid=28710 vsize=64216 CPUtime=62.26
/proc/28712/stat : 28712 (minisat) R 28710 28712 28594 0 -1 4194304 18998 0 0 0 6214 12 0 0 25 0 1 0 149190490 65757184 14657 1992294400 4194304 5092341 548682068848 18446744073709551615 4241418 0 0 4096 3 0 0 0 17 1 0 0
/proc/28712/statm: 16054 14657 103 219 0 15832 0
Current children cumulated CPU time (s) 62.26
Current children cumulated vsize (KiB) 64216

[startup+63.9016 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28719
/proc/meminfo: memFree=1884208/2055920 swapFree=4181332/4192956
[pid=28712] ppid=28710 vsize=64216 CPUtime=63.86
/proc/28712/stat : 28712 (minisat) R 28710 28712 28594 0 -1 4194304 19080 0 0 0 6374 12 0 0 25 0 1 0 149190490 65757184 14739 1992294400 4194304 5092341 548682068848 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/28712/statm: 16054 14739 103 219 0 15832 0
Current children cumulated CPU time (s) 63.86
Current children cumulated vsize (KiB) 64216

[startup+64.7017 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28719
/proc/meminfo: memFree=1884208/2055920 swapFree=4181332/4192956
[pid=28712] ppid=28710 vsize=64216 CPUtime=64.66
/proc/28712/stat : 28712 (minisat) R 28710 28712 28594 0 -1 4194304 19115 0 0 0 6454 12 0 0 25 0 1 0 149190490 65757184 14774 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/28712/statm: 16054 14774 103 219 0 15832 0
Current children cumulated CPU time (s) 64.66
Current children cumulated vsize (KiB) 64216

[startup+65.1018 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28719
/proc/meminfo: memFree=1884016/2055920 swapFree=4181332/4192956
[pid=28712] ppid=28710 vsize=64216 CPUtime=65.06
/proc/28712/stat : 28712 (minisat) R 28710 28712 28594 0 -1 4194304 19127 0 0 0 6494 12 0 0 25 0 1 0 149190490 65757184 14786 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/28712/statm: 16054 14786 103 219 0 15832 0
Current children cumulated CPU time (s) 65.06
Current children cumulated vsize (KiB) 64216

[startup+65.2018 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 28719
/proc/meminfo: memFree=1884016/2055920 swapFree=4181332/4192956
[pid=28712] ppid=28710 vsize=64216 CPUtime=65.16
/proc/28712/stat : 28712 (minisat) R 28710 28712 28594 0 -1 4194304 19128 0 0 0 6504 12 0 0 25 0 1 0 149190490 65757184 14787 1992294400 4194304 5092341 548682068848 18446744073709551615 4240672 0 0 4096 3 0 0 0 17 1 0 0
/proc/28712/statm: 16054 14787 103 219 0 15832 0
Current children cumulated CPU time (s) 65.16
Current children cumulated vsize (KiB) 64216

Child status: 20
Real time (s): 65.2761
CPU time (s): 65.2501
CPU user time (s): 65.1101
CPU system time (s): 0.139978
CPU usage (%): 99.9601
Max. virtual memory (cumulated for all children) (KiB): 64216

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 65.1101
system time used= 0.139978
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19139
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= 135

runsolver used 0.068989 second user time and 0.141978 second system time

The end

Launcher Data 

Begin job on node36 at 2009-05-01 23:00:19
IDJOB=1773472
IDBENCH=69599
IDSOLVER=608
FILE ID=node36/1773472-1241211619
PBS_JOBID= 9224725
Free space on /tmp= 66460 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT_RACE08/cnf/manol-pipe-c6bidw_i.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773472-1241211619/watcher-1773472-1241211619 -o /tmp/evaluation-result-1773472-1241211619/solver-1773472-1241211619 -C 10000 -W 12000 -M 1800  HOME/minisat HOME/instance-1773472-1241211619.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 8aeb1eb6b7bf22d54183762fb5b6410c
RANDOM SEED=1705480875

node36.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:       1943576 kB
Buffers:         12184 kB
Cached:          51244 kB
SwapCached:       5796 kB
Active:          18740 kB
Inactive:        53028 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1943576 kB
SwapTotal:     4192956 kB
SwapFree:      4181332 kB
Dirty:            5576 kB
Writeback:           0 kB
Mapped:          13372 kB
Slab:            26640 kB
Committed_AS:   644156 kB
PageTables:       1364 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= 66456 MiB
End job on node36 at 2009-05-01 23:01:24