Trace number 1773082

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 43.3614 43.3732

General information on the benchmark

Nameindustrial/jarvisalo/
eq.atree.braun.8.unsat.cnf
MD5SUM35a8bbabf9cb954216ad71150cb47290
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark13.6769
Satisfiable
(Un)Satisfiability was proved
Number of variables684
Number of clauses2300
Sum of the clauses size5992
Maximum clause length15
Minimum clause length1
Number of clauses of size 13
Number of clauses of size 2978
Number of clauses of size 31284
Number of clauses of size 416
Number of clauses of size 512
Number of clauses of size over 57

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 |                                                                             |
0.00/0.00	c |  Number of variables:           684                                         |
0.00/0.00	c |  Number of clauses:            2297                                         |
0.00/0.00	c |  Parse time:                   0.00 s                                       |
0.00/0.00	c |  Simplification time:          0.00 s                                       |
0.00/0.00	c |                                                                             |
0.00/0.00	c ============================[ Search Statistics ]==============================
0.00/0.00	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.00	c ===============================================================================
0.00/0.01	c |       100 |     464     1911     5724 |      700      100     14 |  0.439 % |
0.00/0.01	c |       250 |     464     1911     5724 |      770      250     19 |  0.439 % |
0.00/0.02	c |       475 |     464     1911     5724 |      847      475     25 |  0.439 % |
0.00/0.03	c |       812 |     464     1911     5724 |      932      812     26 |  0.439 % |
0.00/0.05	c |      1318 |     464     1911     5724 |     1025      805     24 |  0.439 % |
0.00/0.09	c |      2077 |     464     1911     5724 |     1128     1017     21 |  0.439 % |
0.09/0.14	c |      3216 |     461     1894     5673 |     1241      902     17 |  0.877 % |
0.19/0.22	c |      4924 |     461     1894     5673 |     1365      657     10 |  0.877 % |
0.29/0.34	c |      7486 |     461     1894     5673 |     1502     1067     13 |  0.877 % |
0.49/0.52	c |     11330 |     461     1894     5673 |     1652      919     10 |  0.878 % |
0.69/0.79	c |     17096 |     461     1894     5673 |     1817     1376     12 |  0.877 % |
1.19/1.23	c |     25745 |     460     1890     5657 |     1999     1374     15 |  1.024 % |
1.79/1.84	c |     38719 |     460     1890     5657 |     2199     1931     16 |  1.024 % |
2.69/2.77	c |     58180 |     458     1882     5625 |     2419     1224      8 |  1.316 % |
4.19/4.29	c |     87372 |     458     1882     5625 |     2660     1492     13 |  1.316 % |
6.50/6.55	c |    131161 |     458     1882     5625 |     2926     2574     16 |  1.316 % |
9.99/10.01	c |    196845 |     457     1878     5609 |     3219     1557     10 |  1.463 % |
15.29/15.31	c |    295371 |     457     1878     5609 |     3541     2524     13 |  1.462 % |
23.39/23.47	c |    443160 |     457     1878     5609 |     3895     2859     13 |  1.462 % |
36.08/36.10	c |    664843 |     457     1878     5609 |     4285     2315     12 |  1.462 % |
43.28/43.37	c ===============================================================================
43.28/43.37	c restarts              : 1676
43.28/43.37	c conflicts             : 790961         (18243 /sec)
43.28/43.37	c decisions             : 934172         (21546 /sec)
43.28/43.37	c propagations          : 96749272       (2231487 /sec)
43.28/43.37	c conflict literals     : 15386091       (47.07 % deleted)
43.28/43.37	c Memory used           : 17.57 MB
43.28/43.37	c CPU time              : 43.3564 s
43.28/43.37	c 
43.28/43.37	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-1773082-1241209107/watcher-1773082-1241209107 -o /tmp/evaluation-result-1773082-1241209107/solver-1773082-1241209107 -C 10000 -W 12000 -M 1800 HOME/minisat HOME/instance-1773082-1241209107.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: 0.99 0.97 0.99 2/65 27918
/proc/meminfo: memFree=1181568/2055920 swapFree=4181396/4192956
[pid=27918] ppid=27916 vsize=7472 CPUtime=0
/proc/27918/stat : 27918 (minisat) R 27916 27918 27827 0 -1 4194304 200 0 0 0 0 0 0 0 20 0 1 0 148944388 7651328 184 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/27918/statm: 1868 184 88 219 0 1646 0

[startup+0.00908607 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 27918
/proc/meminfo: memFree=1181568/2055920 swapFree=4181396/4192956
[pid=27918] ppid=27916 vsize=7472 CPUtime=0
/proc/27918/stat : 27918 (minisat) R 27916 27918 27827 0 -1 4194304 217 0 0 0 0 0 0 0 20 0 1 0 148944388 7651328 185 1992294400 4194304 5092341 548682068848 18446744073709551615 4249631 0 0 4096 3 0 0 0 17 1 0 0
/proc/27918/statm: 1868 185 92 219 0 1646 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 7472

[startup+0.101095 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 27918
/proc/meminfo: memFree=1181568/2055920 swapFree=4181396/4192956
[pid=27918] ppid=27916 vsize=12760 CPUtime=0.09
/proc/27918/stat : 27918 (minisat) R 27916 27918 27827 0 -1 4194304 326 0 0 0 9 0 0 0 20 0 1 0 148944388 13066240 257 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/27918/statm: 3190 257 100 219 0 2968 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12760

[startup+0.301113 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 27918
/proc/meminfo: memFree=1181568/2055920 swapFree=4181396/4192956
[pid=27918] ppid=27916 vsize=17984 CPUtime=0.29
/proc/27918/stat : 27918 (minisat) R 27916 27918 27827 0 -1 4194304 415 0 0 0 29 0 0 0 22 0 1 0 148944388 18415616 310 1992294400 4194304 5092341 548682068848 18446744073709551615 4244024 0 0 4096 3 0 0 0 17 1 0 0
/proc/27918/statm: 4496 310 101 219 0 4274 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 17984

[startup+0.70115 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 27918
/proc/meminfo: memFree=1181568/2055920 swapFree=4181396/4192956
[pid=27918] ppid=27916 vsize=17984 CPUtime=0.69
/proc/27918/stat : 27918 (minisat) R 27916 27918 27827 0 -1 4194304 428 0 0 0 69 0 0 0 25 0 1 0 148944388 18415616 323 1992294400 4194304 5092341 548682068848 18446744073709551615 4241376 0 0 4096 3 0 0 0 17 1 0 0
/proc/27918/statm: 4496 323 101 219 0 4274 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 17984

[startup+1.50123 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 27919
/proc/meminfo: memFree=1180664/2055920 swapFree=4181396/4192956
[pid=27918] ppid=27916 vsize=17984 CPUtime=1.49
/proc/27918/stat : 27918 (minisat) R 27916 27918 27827 0 -1 4194304 445 0 0 0 149 0 0 0 25 0 1 0 148944388 18415616 340 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/27918/statm: 4496 340 101 219 0 4274 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 17984

[startup+3.10138 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 27919
/proc/meminfo: memFree=1180280/2055920 swapFree=4181396/4192956
[pid=27918] ppid=27916 vsize=17984 CPUtime=3.09
/proc/27918/stat : 27918 (minisat) R 27916 27918 27827 0 -1 4194304 506 0 0 0 309 0 0 0 25 0 1 0 148944388 18415616 401 1992294400 4194304 5092341 548682068848 18446744073709551615 4248199 0 0 4096 3 0 0 0 17 1 0 0
/proc/27918/statm: 4496 401 101 219 0 4274 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 17984

[startup+6.30168 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 27919
/proc/meminfo: memFree=1179960/2055920 swapFree=4181396/4192956
[pid=27918] ppid=27916 vsize=17984 CPUtime=6.29
/proc/27918/stat : 27918 (minisat) R 27916 27918 27827 0 -1 4194304 558 0 0 0 629 0 0 0 25 0 1 0 148944388 18415616 453 1992294400 4194304 5092341 548682068848 18446744073709551615 4241380 0 0 4096 3 0 0 0 17 1 0 0
/proc/27918/statm: 4496 453 101 219 0 4274 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 17984

[startup+12.7013 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 27919
/proc/meminfo: memFree=1179576/2055920 swapFree=4181396/4192956
[pid=27918] ppid=27916 vsize=17984 CPUtime=12.69
/proc/27918/stat : 27918 (minisat) R 27916 27918 27827 0 -1 4194304 720 0 0 0 1269 0 0 0 25 0 1 0 148944388 18415616 525 1992294400 4194304 5092341 548682068848 18446744073709551615 4241021 0 0 4096 3 0 0 0 17 1 0 0
/proc/27918/statm: 4496 525 101 219 0 4274 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 17984

[startup+25.5015 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 27919
/proc/meminfo: memFree=1179256/2055920 swapFree=4181396/4192956
[pid=27918] ppid=27916 vsize=17984 CPUtime=25.49
/proc/27918/stat : 27918 (minisat) R 27916 27918 27827 0 -1 4194304 806 0 0 0 2549 0 0 0 25 0 1 0 148944388 18415616 611 1992294400 4194304 5092341 548682068848 18446744073709551615 4248022 0 0 4096 3 0 0 0 17 1 0 0
/proc/27918/statm: 4496 611 101 219 0 4274 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 17984

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

[startup+31.9051 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 27919
/proc/meminfo: memFree=1179128/2055920 swapFree=4181396/4192956
[pid=27918] ppid=27916 vsize=17984 CPUtime=31.89
/proc/27918/stat : 27918 (minisat) R 27916 27918 27827 0 -1 4194304 832 0 0 0 3189 0 0 0 25 0 1 0 148944388 18415616 637 1992294400 4194304 5092341 548682068848 18446744073709551615 4244024 0 0 4096 3 0 0 0 17 1 0 0
/proc/27918/statm: 4496 637 101 219 0 4274 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 17984

[startup+38.3017 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 27919
/proc/meminfo: memFree=1179000/2055920 swapFree=4181396/4192956
[pid=27918] ppid=27916 vsize=17984 CPUtime=38.28
/proc/27918/stat : 27918 (minisat) R 27916 27918 27827 0 -1 4194304 857 0 0 0 3828 0 0 0 25 0 1 0 148944388 18415616 662 1992294400 4194304 5092341 548682068848 18446744073709551615 4241447 0 0 4096 3 0 0 0 17 1 0 0
/proc/27918/statm: 4496 662 101 219 0 4274 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 17984

[startup+41.501 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 27919
/proc/meminfo: memFree=1178872/2055920 swapFree=4181396/4192956
[pid=27918] ppid=27916 vsize=17984 CPUtime=41.48
/proc/27918/stat : 27918 (minisat) R 27916 27918 27827 0 -1 4194304 899 0 0 0 4148 0 0 0 25 0 1 0 148944388 18415616 704 1992294400 4194304 5092341 548682068848 18446744073709551615 4240974 0 0 4096 3 0 0 0 17 1 0 0
/proc/27918/statm: 4496 704 101 219 0 4274 0
Current children cumulated CPU time (s) 41.48
Current children cumulated vsize (KiB) 17984

[startup+42.3011 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 27919
/proc/meminfo: memFree=1178872/2055920 swapFree=4181396/4192956
[pid=27918] ppid=27916 vsize=17984 CPUtime=42.28
/proc/27918/stat : 27918 (minisat) R 27916 27918 27827 0 -1 4194304 899 0 0 0 4228 0 0 0 25 0 1 0 148944388 18415616 704 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/27918/statm: 4496 704 101 219 0 4274 0
Current children cumulated CPU time (s) 42.28
Current children cumulated vsize (KiB) 17984

[startup+43.1011 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 27919
/proc/meminfo: memFree=1178872/2055920 swapFree=4181396/4192956
[pid=27918] ppid=27916 vsize=17984 CPUtime=43.08
/proc/27918/stat : 27918 (minisat) R 27916 27918 27827 0 -1 4194304 899 0 0 0 4308 0 0 0 25 0 1 0 148944388 18415616 704 1992294400 4194304 5092341 548682068848 18446744073709551615 4249968 0 0 4096 3 0 0 0 17 1 0 0
/proc/27918/statm: 4496 704 101 219 0 4274 0
Current children cumulated CPU time (s) 43.08
Current children cumulated vsize (KiB) 17984

[startup+43.3012 s]
/proc/loadavg: 0.99 0.97 0.99 2/66 27919
/proc/meminfo: memFree=1178872/2055920 swapFree=4181396/4192956
[pid=27918] ppid=27916 vsize=17984 CPUtime=43.28
/proc/27918/stat : 27918 (minisat) R 27916 27918 27827 0 -1 4194304 906 0 0 0 4328 0 0 0 25 0 1 0 148944388 18415616 711 1992294400 4194304 5092341 548682068848 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/27918/statm: 4496 711 101 219 0 4274 0
Current children cumulated CPU time (s) 43.28
Current children cumulated vsize (KiB) 17984

Child status: 20
Real time (s): 43.3732
CPU time (s): 43.3614
CPU user time (s): 43.3564
CPU system time (s): 0.004999
CPU usage (%): 99.9727
Max. virtual memory (cumulated for all children) (KiB): 23172

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 43.3564
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 916
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= 44

runsolver used 0.052991 second user time and 0.111982 second system time

The end

Launcher Data 

Begin job on node8 at 2009-05-01 22:18:27
IDJOB=1773082
IDBENCH=20473
IDSOLVER=608
FILE ID=node8/1773082-1241209107
PBS_JOBID= 9224705
Free space on /tmp= 65940 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT07/industrial/jarvisalo/eq.atree.braun.8.unsat.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773082-1241209107/watcher-1773082-1241209107 -o /tmp/evaluation-result-1773082-1241209107/solver-1773082-1241209107 -C 10000 -W 12000 -M 1800  HOME/minisat HOME/instance-1773082-1241209107.cnf

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

MD5SUM BENCH= 35a8bbabf9cb954216ad71150cb47290
RANDOM SEED=1607425225

node8.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		: 3000.238
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		: 3000.238
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1182048 kB
Buffers:         64328 kB
Cached:         727880 kB
SwapCached:       5024 kB
Active:         227028 kB
Inactive:       574116 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1182048 kB
SwapTotal:     4192956 kB
SwapFree:      4181396 kB
Dirty:             968 kB
Writeback:           0 kB
Mapped:          15184 kB
Slab:            58492 kB
Committed_AS:   778584 kB
PageTables:       1384 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 65940 MiB
End job on node8 at 2009-05-01 22:19:10