Trace number 421387

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 2007UNSAT 14.6368 14.6449

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S834531569-01-UNSAT.cnf
MD5SUM4899d6582d732ef8e47904f161487c51
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.72943
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 |    1106     3735    11056 |     1245        0    nan |  0.000 % |
0.00/0.01	c |       100 |    1106     3735    11056 |     1369      100     17 |  0.000 % |
0.02/0.02	c |       252 |    1106     3735    11056 |     1506      252     17 |  0.000 % |
0.02/0.04	c |       477 |    1106     3735    11056 |     1657      477     17 |  0.000 % |
0.02/0.06	c |       814 |    1106     3735    11056 |     1822      814     17 |  0.000 % |
0.02/0.09	c |      1320 |    1106     3735    11056 |     2005     1320     18 |  0.000 % |
0.10/0.15	c |      2079 |    1106     3735    11056 |     2205     1053     16 |  0.000 % |
0.20/0.24	c |      3219 |    1106     3735    11056 |     2426     2193     17 |  0.000 % |
0.30/0.39	c |      4927 |    1106     3735    11056 |     2668     1360     16 |  0.000 % |
0.60/0.60	c |      7491 |    1106     3735    11056 |     2935     2518     18 |  0.000 % |
0.90/0.92	c |     11335 |    1106     3735    11056 |     3229     1866     16 |  0.000 % |
1.39/1.43	c |     17101 |    1106     3735    11056 |     3552     2611     17 |  0.000 % |
2.20/2.23	c |     25751 |    1106     3735    11056 |     3907     2129     17 |  0.001 % |
3.39/3.47	c |     38725 |    1106     3735    11056 |     4298     3059     14 |  0.000 % |
5.29/5.35	c |     58187 |    1106     3735    11056 |     4727     2823     14 |  0.000 % |
8.19/8.22	c |     87380 |    1106     3735    11056 |     5200     3250     16 |  0.000 % |
12.59/12.66	c |    131170 |    1092     3653    10818 |     5720     3026     15 |  1.081 % |
14.59/14.64	c ===============================================================================
14.59/14.64	c restarts              : 17
14.59/14.64	c conflicts             : 150576         (10288 /sec)
14.59/14.64	c decisions             : 185616         (1.78 % random) (12681 /sec)
14.59/14.64	c propagations          : 22638490       (1546686 /sec)
14.59/14.64	c conflict literals     : 2668644        (38.17 % deleted)
14.59/14.64	c Memory used           : 3.07 MB
14.59/14.64	c CPU time              : 14.6368 s
14.59/14.64	c 
14.59/14.64	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node39/watcher-421387-1177503269 -o ROOT/results/node39/solver-421387-1177503269 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/421387-1177503269/minisat_noassertions /tmp/evaluation/421387-1177503269/instance-421387-1177503269.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): 2400 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: 0.95 0.97 0.94 3/77 4864
/proc/meminfo: memFree=1782016/2055920 swapFree=4159384/4192956
[pid=4864] ppid=4862 vsize=1992 CPUtime=0
/proc/4864/stat : 4864 (minisat_noasser) R 4862 4864 3356 0 -1 4194304 178 0 0 0 0 0 0 0 18 0 1 0 198238953 2039808 164 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 1 0 0
/proc/4864/statm: 498 165 50 130 0 365 0

[startup+0.0218681 s]
/proc/loadavg: 0.95 0.97 0.94 3/77 4864
/proc/meminfo: memFree=1782016/2055920 swapFree=4159384/4192956
[pid=4864] ppid=4862 vsize=2208 CPUtime=0.02
/proc/4864/stat : 4864 (minisat_noasser) R 4862 4864 3356 0 -1 4194304 233 0 0 0 2 0 0 0 18 0 1 0 198238953 2260992 219 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547143 0 0 4096 3 0 0 0 17 1 0 0
/proc/4864/statm: 552 219 66 130 0 419 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2208

[startup+0.101882 s]
/proc/loadavg: 0.95 0.97 0.94 3/77 4864
/proc/meminfo: memFree=1782016/2055920 swapFree=4159384/4192956
[pid=4864] ppid=4862 vsize=2208 CPUtime=0.1
/proc/4864/stat : 4864 (minisat_noasser) R 4862 4864 3356 0 -1 4194304 233 0 0 0 10 0 0 0 18 0 1 0 198238953 2260992 219 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134552652 0 0 4096 3 0 0 0 17 1 0 0
/proc/4864/statm: 552 219 66 130 0 419 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2208

[startup+0.301915 s]
/proc/loadavg: 0.95 0.97 0.94 3/77 4864
/proc/meminfo: memFree=1782016/2055920 swapFree=4159384/4192956
[pid=4864] ppid=4862 vsize=2340 CPUtime=0.3
/proc/4864/stat : 4864 (minisat_noasser) R 4862 4864 3356 0 -1 4194304 263 0 0 0 30 0 0 0 19 0 1 0 198238953 2396160 249 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546873 0 0 4096 3 0 0 0 17 1 0 0
/proc/4864/statm: 585 249 66 130 0 452 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 2340

[startup+0.701983 s]
/proc/loadavg: 0.95 0.97 0.94 3/77 4864
/proc/meminfo: memFree=1782016/2055920 swapFree=4159384/4192956
[pid=4864] ppid=4862 vsize=2340 CPUtime=0.7
/proc/4864/stat : 4864 (minisat_noasser) R 4862 4864 3356 0 -1 4194304 288 0 0 0 70 0 0 0 23 0 1 0 198238953 2396160 274 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547293 0 0 4096 3 0 0 0 17 1 0 0
/proc/4864/statm: 585 274 66 130 0 452 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 2340

[startup+1.50112 s]
/proc/loadavg: 0.95 0.97 0.94 2/78 4865
/proc/meminfo: memFree=1781176/2055920 swapFree=4159384/4192956
[pid=4864] ppid=4862 vsize=2472 CPUtime=1.49
/proc/4864/stat : 4864 (minisat_noasser) R 4862 4864 3356 0 -1 4194304 311 0 0 0 149 0 0 0 25 0 1 0 198238953 2531328 297 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546864 0 0 4096 3 0 0 0 17 1 0 0
/proc/4864/statm: 618 297 66 130 0 485 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2472

[startup+3.10139 s]
/proc/loadavg: 0.95 0.97 0.94 2/78 4865
/proc/meminfo: memFree=1780792/2055920 swapFree=4159384/4192956
[pid=4864] ppid=4862 vsize=2604 CPUtime=3.09
/proc/4864/stat : 4864 (minisat_noasser) R 4862 4864 3356 0 -1 4194304 344 0 0 0 309 0 0 0 25 0 1 0 198238953 2666496 330 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546885 0 0 4096 3 0 0 0 17 1 0 0
/proc/4864/statm: 651 330 66 130 0 518 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2604

[startup+6.30193 s]
/proc/loadavg: 0.95 0.97 0.94 2/78 4865
/proc/meminfo: memFree=1780600/2055920 swapFree=4159384/4192956
[pid=4864] ppid=4862 vsize=2736 CPUtime=6.29
/proc/4864/stat : 4864 (minisat_noasser) R 4862 4864 3356 0 -1 4194304 385 0 0 0 629 0 0 0 25 0 1 0 198238953 2801664 371 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134552403 0 0 4096 3 0 0 0 17 1 0 0
/proc/4864/statm: 684 371 66 130 0 551 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2736

[startup+12.702 s]
/proc/loadavg: 0.96 0.97 0.94 2/78 4865
/proc/meminfo: memFree=1780352/2055920 swapFree=4159384/4192956
[pid=4864] ppid=4862 vsize=3000 CPUtime=12.69
/proc/4864/stat : 4864 (minisat_noasser) R 4862 4864 3356 0 -1 4194304 448 0 0 0 1269 0 0 0 25 0 1 0 198238953 3072000 434 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546929 0 0 4096 3 0 0 0 17 1 0 0
/proc/4864/statm: 750 434 66 130 0 617 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3000

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

[startup+13.5011 s]
/proc/loadavg: 0.96 0.97 0.94 2/78 4865
/proc/meminfo: memFree=1780288/2055920 swapFree=4159384/4192956
[pid=4864] ppid=4862 vsize=3140 CPUtime=13.49
/proc/4864/stat : 4864 (minisat_noasser) R 4862 4864 3356 0 -1 4194304 455 0 0 0 1349 0 0 0 25 0 1 0 198238953 3215360 441 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547011 0 0 4096 3 0 0 0 17 1 0 0
/proc/4864/statm: 785 441 66 130 0 652 0
Current children cumulated CPU time (s) 13.49
Current children cumulated vsize (KiB) 3140

[startup+14.3053 s]
/proc/loadavg: 0.96 0.97 0.94 2/78 4865
/proc/meminfo: memFree=1780288/2055920 swapFree=4159384/4192956
[pid=4864] ppid=4862 vsize=3140 CPUtime=14.29
/proc/4864/stat : 4864 (minisat_noasser) R 4862 4864 3356 0 -1 4194304 456 0 0 0 1429 0 0 0 25 0 1 0 198238953 3215360 442 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546907 0 0 4096 3 0 0 0 17 1 0 0
/proc/4864/statm: 785 442 66 130 0 652 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 3140

[startup+14.5013 s]
/proc/loadavg: 0.96 0.97 0.94 2/78 4865
/proc/meminfo: memFree=1780288/2055920 swapFree=4159384/4192956
[pid=4864] ppid=4862 vsize=3140 CPUtime=14.49
/proc/4864/stat : 4864 (minisat_noasser) R 4862 4864 3356 0 -1 4194304 458 0 0 0 1449 0 0 0 25 0 1 0 198238953 3215360 444 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547318 0 0 4096 3 0 0 0 17 1 0 0
/proc/4864/statm: 785 444 66 130 0 652 0
Current children cumulated CPU time (s) 14.49
Current children cumulated vsize (KiB) 3140

[startup+14.6013 s]
/proc/loadavg: 0.96 0.97 0.94 2/78 4865
/proc/meminfo: memFree=1780288/2055920 swapFree=4159384/4192956
[pid=4864] ppid=4862 vsize=3140 CPUtime=14.59
/proc/4864/stat : 4864 (minisat_noasser) R 4862 4864 3356 0 -1 4194304 458 0 0 0 1459 0 0 0 25 0 1 0 198238953 3215360 444 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547326 0 0 4096 3 0 0 0 17 1 0 0
/proc/4864/statm: 785 444 66 130 0 652 0
Current children cumulated CPU time (s) 14.59
Current children cumulated vsize (KiB) 3140

Child status: 20
Real time (s): 14.6449
CPU time (s): 14.6368
CPU user time (s): 14.6368
CPU system time (s): 0
CPU usage (%): 99.9448
Max. virtual memory (cumulated for all children) (KiB): 3140

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 14.6368
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 464
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= 332

runsolver used 0.012998 second user time and 0.037994 second system time

The end

Launcher Data (download as text)

Begin job on node39 on Wed Apr 25 12:14:29 UTC 2007

IDJOB= 421387
IDBENCH= 20306
IDSOLVER= 188
FILE ID= node39/421387-1177503269

PBS_JOBID= 4685835

Free space on /tmp= 66488 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S834531569-01-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/421387-1177503269/minisat_noassertions /tmp/evaluation/421387-1177503269/instance-421387-1177503269.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node39/watcher-421387-1177503269 -o ROOT/results/node39/solver-421387-1177503269 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/421387-1177503269/minisat_noassertions /tmp/evaluation/421387-1177503269/instance-421387-1177503269.cnf

META MD5SUM SOLVER= 80cbedba287df00eb7b45eadedad758b
MD5SUM BENCH=  4899d6582d732ef8e47904f161487c51

RANDOM SEED= 151366507

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node39.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		: 3000.256
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		: 3000.256
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:       1782488 kB
Buffers:         38096 kB
Cached:         146364 kB
SwapCached:      13964 kB
Active:         132776 kB
Inactive:        75764 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1782488 kB
SwapTotal:     4192956 kB
SwapFree:      4159384 kB
Dirty:            1648 kB
Writeback:           0 kB
Mapped:          30988 kB
Slab:            50276 kB
Committed_AS:  1989368 kB
PageTables:       2012 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= 66488 MiB

End job on node39 on Wed Apr 25 12:14:44 UTC 2007