Trace number 421380

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 30.8313 30.8529

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S846304296-04-UNSAT.cnf
MD5SUM6c6574c6e53b7d1ef3d1cc6ac9e5dec3
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark9.15561
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:         0.00         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 |    1085     3702    11081 |     1234        0    nan |  0.000 % |
0.00/0.01	c |       100 |    1085     3702    11081 |     1357      100     22 |  0.000 % |
0.00/0.02	c |       251 |    1085     3702    11081 |     1493      251     19 |  0.000 % |
0.00/0.03	c |       476 |    1085     3702    11081 |     1642      476     17 |  0.000 % |
0.00/0.05	c |       813 |    1085     3702    11081 |     1806      813     17 |  0.000 % |
0.06/0.08	c |      1320 |    1085     3702    11081 |     1987     1320     18 |  0.000 % |
0.09/0.13	c |      2079 |    1085     3702    11081 |     2186     1058     16 |  0.000 % |
0.19/0.21	c |      3219 |    1085     3702    11081 |     2404     2198     19 |  0.000 % |
0.29/0.35	c |      4928 |    1085     3702    11081 |     2645     1423     17 |  0.000 % |
0.49/0.54	c |      7491 |    1085     3702    11081 |     2909     2635     16 |  0.000 % |
0.79/0.85	c |     11337 |    1085     3702    11081 |     3200     2002     15 |  0.001 % |
1.29/1.32	c |     17103 |    1085     3702    11081 |     3520     2873     17 |  0.000 % |
1.99/2.05	c |     25752 |    1085     3702    11081 |     3872     2499     16 |  0.000 % |
3.09/3.18	c |     38726 |    1085     3702    11081 |     4260     3609     17 |  0.000 % |
4.89/4.91	c |     58187 |    1085     3702    11081 |     4686     3512     18 |  0.000 % |
7.59/7.63	c |     87379 |    1085     3702    11081 |     5154     3954     18 |  0.000 % |
11.78/11.83	c |    131169 |    1082     3691    11053 |     5670     4469     17 |  0.232 % |
18.38/18.42	c |    196853 |    1082     3691    11053 |     6237     3862     17 |  0.232 % |
28.17/28.27	c |    295379 |    1071     3624    10849 |     6860     3684     15 |  1.081 % |
30.78/30.85	c ===============================================================================
30.78/30.85	c restarts              : 19
30.78/30.85	c conflicts             : 320217         (10388 /sec)
30.78/30.85	c decisions             : 389866         (1.74 % random) (12648 /sec)
30.78/30.85	c propagations          : 47920881       (1554646 /sec)
30.78/30.85	c conflict literals     : 5747183        (39.00 % deleted)
30.78/30.85	c Memory used           : 3.47 MB
30.78/30.85	c CPU time              : 30.8243 s
30.78/30.85	c 
30.78/30.85	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-421380-1177503237 -o ROOT/results/node39/solver-421380-1177503237 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/421380-1177503237/minisat_noassertions /tmp/evaluation/421380-1177503237/instance-421380-1177503237.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: 0.92 0.97 0.94 3/77 4822
/proc/meminfo: memFree=1782072/2055920 swapFree=4159384/4192956
[pid=4822] ppid=4820 vsize=2124 CPUtime=0
/proc/4822/stat : 4822 (minisat_noasser) R 4820 4822 3356 0 -1 4194304 186 0 0 0 0 0 0 0 18 0 1 0 198235747 2174976 172 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 0 0 0
/proc/4822/statm: 531 172 50 130 0 398 0

[startup+0.0676139 s]
/proc/loadavg: 0.92 0.97 0.94 3/77 4822
/proc/meminfo: memFree=1782072/2055920 swapFree=4159384/4192956
[pid=4822] ppid=4820 vsize=2220 CPUtime=0.06
/proc/4822/stat : 4822 (minisat_noasser) R 4820 4822 3356 0 -1 4194304 235 0 0 0 6 0 0 0 18 0 1 0 198235747 2273280 221 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546870 0 0 4096 3 0 0 0 17 0 0 0
/proc/4822/statm: 555 221 66 130 0 422 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 2220

[startup+0.102618 s]
/proc/loadavg: 0.92 0.97 0.94 3/77 4822
/proc/meminfo: memFree=1782072/2055920 swapFree=4159384/4192956
[pid=4822] ppid=4820 vsize=2220 CPUtime=0.09
/proc/4822/stat : 4822 (minisat_noasser) R 4820 4822 3356 0 -1 4194304 235 0 0 0 9 0 0 0 18 0 1 0 198235747 2273280 221 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546927 0 0 4096 3 0 0 0 17 0 0 0
/proc/4822/statm: 555 221 66 130 0 422 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2220

[startup+0.301653 s]
/proc/loadavg: 0.92 0.97 0.94 3/77 4822
/proc/meminfo: memFree=1782072/2055920 swapFree=4159384/4192956
[pid=4822] ppid=4820 vsize=2352 CPUtime=0.29
/proc/4822/stat : 4822 (minisat_noasser) R 4820 4822 3356 0 -1 4194304 265 0 0 0 29 0 0 0 19 0 1 0 198235747 2408448 251 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546864 0 0 4096 3 0 0 0 17 0 0 0
/proc/4822/statm: 588 251 66 130 0 455 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2352

[startup+0.70172 s]
/proc/loadavg: 0.92 0.97 0.94 3/77 4822
/proc/meminfo: memFree=1782072/2055920 swapFree=4159384/4192956
[pid=4822] ppid=4820 vsize=2352 CPUtime=0.69
/proc/4822/stat : 4822 (minisat_noasser) R 4820 4822 3356 0 -1 4194304 282 0 0 0 69 0 0 0 23 0 1 0 198235747 2408448 268 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134552725 0 0 4096 3 0 0 0 17 0 0 0
/proc/4822/statm: 588 268 66 130 0 455 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2352

[startup+1.50186 s]
/proc/loadavg: 0.92 0.97 0.94 2/78 4823
/proc/meminfo: memFree=1781104/2055920 swapFree=4159384/4192956
[pid=4822] ppid=4820 vsize=2484 CPUtime=1.49
/proc/4822/stat : 4822 (minisat_noasser) R 4820 4822 3356 0 -1 4194304 314 0 0 0 149 0 0 0 25 0 1 0 198235747 2543616 300 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134551606 0 0 4096 3 0 0 0 17 0 0 0
/proc/4822/statm: 621 300 66 130 0 488 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2484

[startup+3.10113 s]
/proc/loadavg: 0.92 0.97 0.94 2/78 4823
/proc/meminfo: memFree=1780848/2055920 swapFree=4159384/4192956
[pid=4822] ppid=4820 vsize=2616 CPUtime=3.09
/proc/4822/stat : 4822 (minisat_noasser) R 4820 4822 3356 0 -1 4194304 352 0 0 0 309 0 0 0 25 0 1 0 198235747 2678784 338 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546942 0 0 4096 3 0 0 0 17 0 0 0
/proc/4822/statm: 654 338 66 130 0 521 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2616

[startup+6.30166 s]
/proc/loadavg: 0.93 0.97 0.94 2/78 4823
/proc/meminfo: memFree=1780600/2055920 swapFree=4159384/4192956
[pid=4822] ppid=4820 vsize=2880 CPUtime=6.29
/proc/4822/stat : 4822 (minisat_noasser) R 4820 4822 3356 0 -1 4194304 402 0 0 0 629 0 0 0 25 0 1 0 198235747 2949120 388 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546870 0 0 4096 3 0 0 0 17 0 0 0
/proc/4822/statm: 720 388 66 130 0 587 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2880

[startup+12.7017 s]
/proc/loadavg: 0.93 0.97 0.94 2/78 4823
/proc/meminfo: memFree=1780280/2055920 swapFree=4159384/4192956
[pid=4822] ppid=4820 vsize=3148 CPUtime=12.68
/proc/4822/stat : 4822 (minisat_noasser) R 4820 4822 3356 0 -1 4194304 467 0 0 0 1268 0 0 0 25 0 1 0 198235747 3223552 453 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546870 0 0 4096 3 0 0 0 17 0 0 0
/proc/4822/statm: 787 453 66 130 0 654 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 3148

[startup+25.5029 s]
/proc/loadavg: 0.95 0.97 0.94 2/78 4823
/proc/meminfo: memFree=1780024/2055920 swapFree=4159384/4192956
[pid=4822] ppid=4820 vsize=3416 CPUtime=25.48
/proc/4822/stat : 4822 (minisat_noasser) R 4820 4822 3356 0 -1 4194304 538 0 0 0 2548 0 0 0 25 0 1 0 198235747 3497984 524 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134552370 0 0 4096 3 0 0 0 17 0 0 0
/proc/4822/statm: 854 524 66 130 0 721 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 3416

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

[startup+28.7015 s]
/proc/loadavg: 0.95 0.97 0.94 2/78 4823
/proc/meminfo: memFree=1780024/2055920 swapFree=4159384/4192956
[pid=4822] ppid=4820 vsize=3416 CPUtime=28.67
/proc/4822/stat : 4822 (minisat_noasser) R 4820 4822 3356 0 -1 4194304 553 0 0 0 2867 0 0 0 25 0 1 0 198235747 3497984 539 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546864 0 0 4096 3 0 0 0 17 0 0 0
/proc/4822/statm: 854 539 66 130 0 721 0
Current children cumulated CPU time (s) 28.67
Current children cumulated vsize (KiB) 3416

[startup+29.5016 s]
/proc/loadavg: 0.95 0.97 0.94 2/78 4823
/proc/meminfo: memFree=1780024/2055920 swapFree=4159384/4192956
[pid=4822] ppid=4820 vsize=3416 CPUtime=29.47
/proc/4822/stat : 4822 (minisat_noasser) R 4820 4822 3356 0 -1 4194304 555 0 0 0 2947 0 0 0 25 0 1 0 198235747 3497984 541 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547181 0 0 4096 3 0 0 0 17 0 0 0
/proc/4822/statm: 854 541 66 130 0 721 0
Current children cumulated CPU time (s) 29.47
Current children cumulated vsize (KiB) 3416

[startup+30.3017 s]
/proc/loadavg: 0.95 0.97 0.94 3/78 4823
/proc/meminfo: memFree=1779960/2055920 swapFree=4159384/4192956
[pid=4822] ppid=4820 vsize=3548 CPUtime=30.27
/proc/4822/stat : 4822 (minisat_noasser) R 4820 4822 3356 0 -1 4194304 559 0 0 0 3027 0 0 0 25 0 1 0 198235747 3633152 545 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134547316 0 0 4096 3 0 0 0 17 0 0 0
/proc/4822/statm: 887 545 66 130 0 754 0
Current children cumulated CPU time (s) 30.27
Current children cumulated vsize (KiB) 3548

[startup+30.7028 s]
/proc/loadavg: 0.95 0.97 0.94 2/78 4823
/proc/meminfo: memFree=1779960/2055920 swapFree=4159384/4192956
[pid=4822] ppid=4820 vsize=3548 CPUtime=30.68
/proc/4822/stat : 4822 (minisat_noasser) R 4820 4822 3356 0 -1 4194304 561 0 0 0 3068 0 0 0 25 0 1 0 198235747 3633152 547 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546822 0 0 4096 3 0 0 0 17 0 0 0
/proc/4822/statm: 887 547 66 130 0 754 0
Current children cumulated CPU time (s) 30.68
Current children cumulated vsize (KiB) 3548

[startup+30.8058 s]
/proc/loadavg: 0.95 0.97 0.94 2/78 4823
/proc/meminfo: memFree=1779960/2055920 swapFree=4159384/4192956
[pid=4822] ppid=4820 vsize=3548 CPUtime=30.78
/proc/4822/stat : 4822 (minisat_noasser) R 4820 4822 3356 0 -1 4194304 561 0 0 0 3078 0 0 0 25 0 1 0 198235747 3633152 547 18446744073709551615 134512640 135048876 4294956640 18446744073709551615 134546870 0 0 4096 3 0 0 0 17 0 0 0
/proc/4822/statm: 887 547 66 130 0 754 0
Current children cumulated CPU time (s) 30.78
Current children cumulated vsize (KiB) 3548

Child status: 20
Real time (s): 30.8529
CPU time (s): 30.8313
CPU user time (s): 30.8243
CPU system time (s): 0.006998
CPU usage (%): 99.9301
Max. virtual memory (cumulated for all children) (KiB): 3548

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 30.8243
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 567
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= 169

runsolver used 0.028995 second user time and 0.091986 second system time

The end

Launcher Data (download as text)

Begin job on node39 on Wed Apr 25 12:13:57 UTC 2007

IDJOB= 421380
IDBENCH= 20298
IDSOLVER= 188
FILE ID= node39/421380-1177503237

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-S846304296-04-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/421380-1177503237/minisat_noassertions /tmp/evaluation/421380-1177503237/instance-421380-1177503237.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node39/watcher-421380-1177503237 -o ROOT/results/node39/solver-421380-1177503237 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/421380-1177503237/minisat_noassertions /tmp/evaluation/421380-1177503237/instance-421380-1177503237.cnf

META MD5SUM SOLVER= 80cbedba287df00eb7b45eadedad758b
MD5SUM BENCH=  6c6574c6e53b7d1ef3d1cc6ac9e5dec3

RANDOM SEED= 271450001

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:       1782544 kB
Buffers:         38080 kB
Cached:         146244 kB
SwapCached:      13964 kB
Active:         132772 kB
Inactive:        75672 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1782544 kB
SwapTotal:     4192956 kB
SwapFree:      4159384 kB
Dirty:            1700 kB
Writeback:           0 kB
Mapped:          30988 kB
Slab:            50284 kB
Committed_AS:  1988332 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 12:14:28 UTC 2007