Trace number 310948

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
minisat SAT 2007 (with assertions)UNSAT 113.139 113.23

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1230630010-06-UNSAT.cnf
MD5SUMf1d2cd08ac7f8096a38662a7d7275db8
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark17.0164
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)

0.00/0.00	c This is MiniSat 2.0 (Feb 1 2007, SAT-Competition version)
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  1295                                                 |
0.00/0.00	c |  Number of clauses:    4026                                                 |
0.00/0.00	c |  Parsing time:         0.01         s                                       |
0.00/0.01	c ============================[ Search Statistics ]==============================
0.00/0.01	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.01	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.01	c ===============================================================================
0.00/0.01	c |         0 |    1104     3752    11204 |     1250        0    nan |  0.000 % |
0.00/0.02	c |       100 |    1104     3752    11204 |     1375      100     17 |  0.000 % |
0.00/0.02	c |       251 |    1104     3752    11204 |     1513      251     18 |  0.001 % |
0.00/0.04	c |       477 |    1104     3752    11204 |     1664      477     20 |  0.000 % |
0.00/0.06	c |       814 |    1104     3752    11204 |     1831      814     20 |  0.000 % |
0.00/0.10	c |      1321 |    1104     3752    11204 |     2014     1321     19 |  0.000 % |
0.10/0.16	c |      2080 |    1104     3752    11204 |     2215     2080     19 |  0.000 % |
0.20/0.25	c |      3220 |    1104     3752    11204 |     2437     2067     19 |  0.000 % |
0.31/0.40	c |      4928 |    1104     3752    11204 |     2680     1275     16 |  0.000 % |
0.51/0.61	c |      7490 |    1104     3752    11204 |     2949     2442     18 |  0.000 % |
0.92/0.96	c |     11334 |    1104     3752    11204 |     3243     1709     17 |  0.000 % |
1.44/1.49	c |     17100 |    1104     3752    11204 |     3568     2405     18 |  0.000 % |
2.26/2.31	c |     25752 |    1104     3752    11204 |     3925     1874     16 |  0.000 % |
3.48/3.52	c |     38727 |    1104     3752    11204 |     4317     2773     17 |  0.001 % |
5.43/5.49	c |     58189 |    1104     3752    11204 |     4749     2367     15 |  0.002 % |
8.49/8.51	c |     87381 |    1104     3752    11204 |     5224     4714     22 |  0.001 % |
13.21/13.28	c |    131171 |    1104     3752    11204 |     5746     3327     16 |  0.000 % |
20.48/20.55	c |    196857 |    1104     3752    11204 |     6321     4573     20 |  0.001 % |
31.95/32.00	c |    295387 |    1104     3752    11204 |     6953     3498     16 |  0.001 % |
49.77/49.83	c |    443178 |    1104     3752    11204 |     7648     6487     20 |  0.000 % |
77.19/77.32	c |    664861 |    1104     3752    11204 |     8413     7460     18 |  0.000 % |
113.04/113.22	c ===============================================================================
113.04/113.22	c restarts              : 21
113.04/113.22	c conflicts             : 946684         (8368 /sec)
113.04/113.22	c decisions             : 1155357        (1.72 % random) (10213 /sec)
113.04/113.22	c propagations          : 141162104      (1247844 /sec)
113.04/113.22	c conflict literals     : 19738833       (38.11 % deleted)
113.04/113.22	c Memory used           : 4.41 MB
113.04/113.22	c CPU time              : 113.125 s
113.04/113.22	c 
113.04/113.22	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node10/watcher-310948-1172563200 -o ROOT/results/node10/solver-310948-1172563200 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310948-1172563200/minisat /tmp/evaluation/310948-1172563200/instance-310948-1172563200.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: 0.92 0.98 0.99 3/77 26993
/proc/meminfo: memFree=1591272/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=2024 CPUtime=0
/proc/26993/stat : 26993 (minisat) R 26991 26993 25902 0 -1 4194304 186 0 0 0 0 0 0 0 18 0 1 0 276275059 2072576 170 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134707275 0 0 4096 3 0 0 0 17 1 0 0
/proc/26993/statm: 506 170 58 138 0 365 0

[startup+0.108076 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 26993
/proc/meminfo: memFree=1591272/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=2248 CPUtime=0.1
/proc/26993/stat : 26993 (minisat) R 26991 26993 25902 0 -1 4194304 244 0 0 0 10 0 0 0 18 0 1 0 276275059 2301952 228 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550596 0 0 4096 3 0 0 0 17 1 0 0
/proc/26993/statm: 562 228 73 138 0 421 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2248

[startup+0.520133 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 26993
/proc/meminfo: memFree=1591272/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=2380 CPUtime=0.51
/proc/26993/stat : 26993 (minisat) R 26991 26993 25902 0 -1 4194304 282 0 0 0 51 0 0 0 21 0 1 0 276275059 2437120 266 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550554 0 0 4096 3 0 0 0 17 1 0 0
/proc/26993/statm: 595 266 73 138 0 454 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2380

[startup+1.34225 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 26994
/proc/meminfo: memFree=1590240/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=2512 CPUtime=1.33
/proc/26993/stat : 26993 (minisat) R 26991 26993 25902 0 -1 4194304 321 0 0 0 133 0 0 0 25 0 1 0 276275059 2572288 305 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134552077 0 0 4096 3 0 0 0 17 1 0 0
/proc/26993/statm: 628 305 73 138 0 487 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 2512

[startup+2.97847 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 26994
/proc/meminfo: memFree=1589984/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=2656 CPUtime=2.97
/proc/26993/stat : 26993 (minisat) R 26991 26993 25902 0 -1 4194304 358 0 0 0 297 0 0 0 25 0 1 0 276275059 2719744 342 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550985 0 0 4096 3 0 0 0 17 1 0 0
/proc/26993/statm: 664 342 73 138 0 523 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 2656

[startup+6.25491 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 26994
/proc/meminfo: memFree=1589792/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=3052 CPUtime=6.24
/proc/26993/stat : 26993 (minisat) R 26991 26993 25902 0 -1 4194304 437 0 0 0 624 0 0 0 25 0 1 0 276275059 3125248 421 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134556030 0 0 4096 3 0 0 0 17 1 0 0
/proc/26993/statm: 763 421 73 138 0 622 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 3052

[startup+12.7118 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 26994
/proc/meminfo: memFree=1589472/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=3184 CPUtime=12.7
/proc/26993/stat : 26993 (minisat) R 26991 26993 25902 0 -1 4194304 476 0 0 0 1270 0 0 0 25 0 1 0 276275059 3260416 460 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550513 0 0 4096 3 0 0 0 17 1 0 0
/proc/26993/statm: 796 460 73 138 0 655 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 3184

[startup+25.5125 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 26994
/proc/meminfo: memFree=1589024/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=3580 CPUtime=25.49
/proc/26993/stat : 26993 (minisat) R 26991 26993 25902 0 -1 4194304 582 0 0 0 2549 0 0 0 25 0 1 0 276275059 3665920 566 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134551008 0 0 4096 3 0 0 0 17 1 0 0
/proc/26993/statm: 895 566 73 138 0 754 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 3580

[startup+51.126 s]
/proc/loadavg: 0.96 0.98 0.99 3/78 26994
/proc/meminfo: memFree=1588640/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=3976 CPUtime=51.1
/proc/26993/stat : 26993 (minisat) R 26991 26993 25902 0 -1 4194304 682 0 0 0 5110 0 0 0 25 0 1 0 276275059 4071424 666 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134556269 0 0 4096 3 0 0 0 17 1 0 0
/proc/26993/statm: 994 666 73 138 0 853 0
Current children cumulated CPU time (s) 51.1
Current children cumulated vsize (KiB) 3976

[startup+102.365 s]
/proc/loadavg: 0.98 0.98 0.99 2/84 27106
/proc/meminfo: memFree=1586864/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=4512 CPUtime=102.28
/proc/26993/stat : 26993 (minisat) R 26991 26993 25902 0 -1 4194304 804 0 0 0 10227 1 0 0 25 0 1 0 276275059 4620288 788 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550732 0 0 4096 3 0 0 0 17 1 0 0
/proc/26993/statm: 1128 788 73 138 0 987 0
Current children cumulated CPU time (s) 102.28
Current children cumulated vsize (KiB) 4512

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

[startup+104.935 s]
/proc/loadavg: 0.98 0.98 0.99 2/84 27108
/proc/meminfo: memFree=1586864/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=4512 CPUtime=104.85
/proc/26993/stat : 26993 (minisat) R 26991 26993 25902 0 -1 4194304 804 0 0 0 10484 1 0 0 25 0 1 0 276275059 4620288 788 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134556294 0 0 4096 3 0 0 0 17 1 0 0
/proc/26993/statm: 1128 788 73 138 0 987 0
Current children cumulated CPU time (s) 104.85
Current children cumulated vsize (KiB) 4512

[startup+108.208 s]
/proc/loadavg: 0.98 0.98 0.99 2/84 27110
/proc/meminfo: memFree=1586864/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=4512 CPUtime=108.12
/proc/26993/stat : 26993 (minisat) R 26991 26993 25902 0 -1 4194304 811 0 0 0 10811 1 0 0 25 0 1 0 276275059 4620288 795 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550749 0 0 4096 3 0 0 0 17 1 0 0
/proc/26993/statm: 1128 795 73 138 0 987 0
Current children cumulated CPU time (s) 108.12
Current children cumulated vsize (KiB) 4512

[startup+111.489 s]
/proc/loadavg: 0.98 0.98 0.99 2/84 27112
/proc/meminfo: memFree=1586800/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=4512 CPUtime=111.39
/proc/26993/stat : 26993 (minisat) R 26991 26993 25902 0 -1 4194304 816 0 0 0 11138 1 0 0 25 0 1 0 276275059 4620288 800 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550985 0 0 4096 3 0 0 0 17 1 0 0
/proc/26993/statm: 1128 800 73 138 0 987 0
Current children cumulated CPU time (s) 111.39
Current children cumulated vsize (KiB) 4512

[startup+112.314 s]
/proc/loadavg: 0.98 0.98 0.99 2/84 27116
/proc/meminfo: memFree=1586864/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=4512 CPUtime=112.22
/proc/26993/stat : 26993 (minisat) R 26991 26993 25902 0 -1 4194304 818 0 0 0 11221 1 0 0 25 0 1 0 276275059 4620288 802 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550181 0 0 4096 3 0 0 0 17 1 0 0
/proc/26993/statm: 1128 802 73 138 0 987 0
Current children cumulated CPU time (s) 112.22
Current children cumulated vsize (KiB) 4512

[startup+112.722 s]
/proc/loadavg: 0.98 0.98 0.99 2/84 27116
/proc/meminfo: memFree=1586864/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=4512 CPUtime=112.63
/proc/26993/stat : 26993 (minisat) R 26991 26993 25902 0 -1 4194304 818 0 0 0 11262 1 0 0 25 0 1 0 276275059 4620288 802 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550573 0 0 4096 3 0 0 0 17 1 0 0
/proc/26993/statm: 1128 802 73 138 0 987 0
Current children cumulated CPU time (s) 112.63
Current children cumulated vsize (KiB) 4512

[startup+113.134 s]
/proc/loadavg: 0.98 0.98 0.99 2/84 27116
/proc/meminfo: memFree=1586864/2055920 swapFree=4192812/4192956
[pid=26993] ppid=26991 vsize=4512 CPUtime=113.04
/proc/26993/stat : 26993 (minisat) R 26991 26993 25902 0 -1 4194304 818 0 0 0 11303 1 0 0 25 0 1 0 276275059 4620288 802 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550652 0 0 4096 3 0 0 0 17 1 0 0
/proc/26993/statm: 1128 802 73 138 0 987 0
Current children cumulated CPU time (s) 113.04
Current children cumulated vsize (KiB) 4512

Child status: 0
Real time (s): 113.23
CPU time (s): 113.139
CPU user time (s): 113.127
CPU system time (s): 0.011998
CPU usage (%): 99.9194
Max. virtual memory (cumulated for all children) (KiB): 4512

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 113.127
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 824
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= 8
involuntary context switches= 383

runsolver used 0.12698 second user time and 0.283956 second system time

The end

Launcher Data (download as text)

Begin job on node10 on Tue Feb 27 08:00:01 UTC 2007

IDJOB= 310948
IDBENCH= 20300
IDSOLVER= 109
FILE ID= node10/310948-1172563200

PBS_JOBID= 3971657

Free space on /tmp= 66560 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1230630010-06-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310948-1172563200/minisat /tmp/evaluation/310948-1172563200/instance-310948-1172563200.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-310948-1172563200 -o ROOT/results/node10/solver-310948-1172563200 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310948-1172563200/minisat /tmp/evaluation/310948-1172563200/instance-310948-1172563200.cnf            

META MD5SUM SOLVER= 120abd248b069e44985635f055606c5a
MD5SUM BENCH=  f1d2cd08ac7f8096a38662a7d7275db8

RANDOM SEED= 350409250

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node10.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		: 3000.232
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:       1591616 kB
Buffers:         50224 kB
Cached:         299772 kB
SwapCached:          0 kB
Active:         250076 kB
Inactive:       144616 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1591616 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1048 kB
Writeback:           0 kB
Mapped:          63620 kB
Slab:            55024 kB
Committed_AS:  1369948 kB
PageTables:       1832 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 node10 on Tue Feb 27 08:01:54 UTC 2007