Trace number 1772972

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 38.3222 38.3319

General information on the benchmark

Nameindustrial/palacios/uts/
uts-l06-ipc5-h28-unknown.cnf
MD5SUMccc94758bbd09de3056ff3a062ddfd45
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark15.5716
Satisfiable
(Un)Satisfiability was proved
Number of variables113583
Number of clauses649270
Sum of the clauses size1721996
Maximum clause length591
Minimum clause length1
Number of clauses of size 1276
Number of clauses of size 2537293
Number of clauses of size 3107101
Number of clauses of size 4980
Number of clauses of size 5101
Number of clauses of size over 53519

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 |                                                                             |
0.59/0.62	c |  Number of variables:        115898                                         |
0.59/0.62	c |  Number of clauses:          648970                                         |
0.59/0.62	c |  Parse time:                   0.55 s                                       |
15.08/15.14	c |  Simplification time:         14.46 s                                       |
15.08/15.14	c |                                                                             |
15.08/15.14	c ============================[ Search Statistics ]==============================
15.08/15.14	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
15.08/15.14	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
15.08/15.14	c ===============================================================================
15.08/15.18	c |       100 |   31329   484496  1755505 |   177648      100     34 |  0.029 % |
15.29/15.30	c |       250 |   31329   484496  1755505 |   195413      250     43 |  0.029 % |
15.49/15.57	c |       475 |   31329   484496  1755505 |   214954      475     69 |  0.029 % |
15.89/15.95	c |       812 |   31329   484496  1755505 |   236450      812     77 |  0.029 % |
16.39/16.45	c |      1318 |   31329   484496  1755505 |   260095     1318     58 |  0.029 % |
16.98/17.04	c |      2077 |   31329   484496  1755505 |   286104     2077     45 |  0.029 % |
17.78/17.83	c |      3216 |   31329   484496  1755505 |   314715     3216     44 |  0.029 % |
19.28/19.34	c |      4924 |   31329   484496  1755505 |   346186     4924     45 |  0.029 % |
20.79/20.87	c |      7486 |   31329   484496  1755505 |   380805     7486     76 |  0.029 % |
23.88/23.91	c |     11330 |   31304   480787  1747426 |   418885    11300     64 |  0.051 % |
27.39/27.44	c |     17096 |   31301   479238  1744269 |   460774    17050     52 |  0.053 % |
31.18/31.24	c |     25745 |   31291   474960  1735436 |   506851    25667     42 |  0.062 % |
35.88/35.98	c |     38719 |   31291   474960  1735436 |   557537    38641     33 |  0.062 % |
38.28/38.32	c ===============================================================================
38.28/38.32	c restarts              : 134
38.28/38.32	c conflicts             : 46101          (1208 /sec)
38.28/38.32	c decisions             : 149599         (3920 /sec)
38.28/38.32	c propagations          : 66557824       (1744260 /sec)
38.28/38.32	c conflict literals     : 1354595        (27.49 % deleted)
38.28/38.32	c Memory used           : 71.88 MB
38.28/38.32	c CPU time              : 38.1582 s
38.28/38.32	c 
38.28/38.32	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-1772972-1241208909/watcher-1772972-1241208909 -o /tmp/evaluation-result-1772972-1241208909/solver-1772972-1241208909 -C 10000 -W 12000 -M 1800 HOME/minisat HOME/instance-1772972-1241208909.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: 0.85 0.97 0.99 3/64 23280
/proc/meminfo: memFree=786600/2055920 swapFree=4181244/4192956
[pid=23280] ppid=23278 vsize=7784 CPUtime=0
/proc/23280/stat : 23280 (minisat) R 23278 23280 23243 0 -1 4194304 488 0 0 0 0 0 0 0 18 0 1 0 148924515 7970816 472 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/23280/statm: 1946 472 63 219 0 1724 0

[startup+0.042961 s]
/proc/loadavg: 0.85 0.97 0.99 3/64 23280
/proc/meminfo: memFree=786600/2055920 swapFree=4181244/4192956
[pid=23280] ppid=23278 vsize=10420 CPUtime=0.03
/proc/23280/stat : 23280 (minisat) R 23278 23280 23243 0 -1 4194304 1372 0 0 0 3 0 0 0 18 0 1 0 148924515 10670080 1315 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/23280/statm: 2605 1316 63 219 0 2383 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 10420

[startup+0.101963 s]
/proc/loadavg: 0.85 0.97 0.99 3/64 23280
/proc/meminfo: memFree=786600/2055920 swapFree=4181244/4192956
[pid=23280] ppid=23278 vsize=14372 CPUtime=0.09
/proc/23280/stat : 23280 (minisat) R 23278 23280 23243 0 -1 4194304 2751 0 0 0 8 1 0 0 18 0 1 0 148924515 14716928 2542 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/23280/statm: 3593 2543 63 219 0 3371 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 14372

[startup+0.301976 s]
/proc/loadavg: 0.85 0.97 0.99 3/64 23280
/proc/meminfo: memFree=786600/2055920 swapFree=4181244/4192956
[pid=23280] ppid=23278 vsize=31364 CPUtime=0.29
/proc/23280/stat : 23280 (minisat) R 23278 23280 23243 0 -1 4194304 7739 0 0 0 25 4 0 0 19 0 1 0 148924515 32116736 6887 1992294400 4194304 5092341 548682068848 18446744073709551615 4209789 0 0 4096 3 0 0 0 17 1 0 0
/proc/23280/statm: 7841 6887 63 219 0 7619 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 31364

[startup+0.702002 s]
/proc/loadavg: 0.85 0.97 0.99 3/64 23280
/proc/meminfo: memFree=786600/2055920 swapFree=4181244/4192956
[pid=23280] ppid=23278 vsize=64532 CPUtime=0.69
/proc/23280/stat : 23280 (minisat) R 23278 23280 23243 0 -1 4194304 15161 0 0 0 62 7 0 0 23 0 1 0 148924515 66080768 13853 1992294400 4194304 5092341 548682068848 18446744073709551615 4219872 0 0 4096 3 0 0 0 17 1 0 0
/proc/23280/statm: 16133 13853 86 219 0 15911 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 64532

[startup+1.50205 s]
/proc/loadavg: 0.85 0.97 0.99 2/65 23281
/proc/meminfo: memFree=731360/2055920 swapFree=4181244/4192956
[pid=23280] ppid=23278 vsize=64532 CPUtime=1.49
/proc/23280/stat : 23280 (minisat) R 23278 23280 23243 0 -1 4194304 15161 0 0 0 142 7 0 0 25 0 1 0 148924515 66080768 13853 1992294400 4194304 5092341 548682068848 18446744073709551615 4219753 0 0 4096 3 0 0 0 17 1 0 0
/proc/23280/statm: 16133 13853 86 219 0 15911 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 64532

[startup+3.10116 s]
/proc/loadavg: 0.86 0.97 0.99 2/65 23281
/proc/meminfo: memFree=731232/2055920 swapFree=4181244/4192956
[pid=23280] ppid=23278 vsize=64532 CPUtime=3.08
/proc/23280/stat : 23280 (minisat) R 23278 23280 23243 0 -1 4194304 15161 0 0 0 301 7 0 0 25 0 1 0 148924515 66080768 13853 1992294400 4194304 5092341 548682068848 18446744073709551615 4220387 0 0 4096 3 0 0 0 17 1 0 0
/proc/23280/statm: 16133 13853 86 219 0 15911 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 64532

[startup+6.30136 s]
/proc/loadavg: 0.86 0.97 0.99 2/65 23281
/proc/meminfo: memFree=710504/2055920 swapFree=4181244/4192956
[pid=23280] ppid=23278 vsize=86256 CPUtime=6.29
/proc/23280/stat : 23280 (minisat) R 23278 23280 23243 0 -1 4194304 20318 0 0 0 618 11 0 0 25 0 1 0 148924515 88326144 19010 1992294400 4194304 5092341 548682068848 18446744073709551615 4219527 0 0 4096 3 0 0 0 17 1 0 0
/proc/23280/statm: 21564 19010 87 219 0 21342 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 86256

[startup+12.7018 s]
/proc/loadavg: 0.88 0.97 0.99 2/65 23281
/proc/meminfo: memFree=709160/2055920 swapFree=4181244/4192956
[pid=23280] ppid=23278 vsize=86256 CPUtime=12.69
/proc/23280/stat : 23280 (minisat) R 23278 23280 23243 0 -1 4194304 20667 0 0 0 1258 11 0 0 25 0 1 0 148924515 88326144 19359 1992294400 4194304 5092341 548682068848 18446744073709551615 4219527 0 0 4096 3 0 0 0 17 1 0 0
/proc/23280/statm: 21564 19359 87 219 0 21342 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 86256

[startup+25.5016 s]
/proc/loadavg: 0.90 0.97 0.99 2/65 23281
/proc/meminfo: memFree=723560/2055920 swapFree=4181244/4192956
[pid=23280] ppid=23278 vsize=73596 CPUtime=25.49
/proc/23280/stat : 23280 (minisat) R 23278 23280 23243 0 -1 4194304 23811 0 0 0 2535 14 0 0 25 0 1 0 148924515 75362304 15808 1992294400 4194304 5092341 548682068848 18446744073709551615 4241418 0 0 4096 3 0 0 0 17 1 0 0
/proc/23280/statm: 18399 15808 103 219 0 18177 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 73596

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

[startup+31.906 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 23281
/proc/meminfo: memFree=722344/2055920 swapFree=4181244/4192956
[pid=23280] ppid=23278 vsize=73596 CPUtime=31.89
/proc/23280/stat : 23280 (minisat) R 23278 23280 23243 0 -1 4194304 24134 0 0 0 3175 14 0 0 25 0 1 0 148924515 75362304 16131 1992294400 4194304 5092341 548682068848 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/23280/statm: 18399 16131 103 219 0 18177 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 73596

[startup+35.1012 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 23281
/proc/meminfo: memFree=721704/2055920 swapFree=4181244/4192956
[pid=23280] ppid=23278 vsize=73596 CPUtime=35.08
/proc/23280/stat : 23280 (minisat) R 23278 23280 23243 0 -1 4194304 24283 0 0 0 3494 14 0 0 25 0 1 0 148924515 75362304 16280 1992294400 4194304 5092341 548682068848 18446744073709551615 4240843 0 0 4096 3 0 0 0 17 1 0 0
/proc/23280/statm: 18399 16280 103 219 0 18177 0
Current children cumulated CPU time (s) 35.08
Current children cumulated vsize (KiB) 73596

[startup+36.7013 s]
/proc/loadavg: 0.91 0.97 0.99 2/65 23281
/proc/meminfo: memFree=721512/2055920 swapFree=4181244/4192956
[pid=23280] ppid=23278 vsize=73596 CPUtime=36.68
/proc/23280/stat : 23280 (minisat) R 23278 23280 23243 0 -1 4194304 24358 0 0 0 3654 14 0 0 25 0 1 0 148924515 75362304 16355 1992294400 4194304 5092341 548682068848 18446744073709551615 4241260 0 0 4096 3 0 0 0 17 1 0 0
/proc/23280/statm: 18399 16355 103 219 0 18177 0
Current children cumulated CPU time (s) 36.68
Current children cumulated vsize (KiB) 73596

[startup+37.5014 s]
/proc/loadavg: 0.92 0.97 0.99 2/65 23281
/proc/meminfo: memFree=721320/2055920 swapFree=4181244/4192956
[pid=23280] ppid=23278 vsize=73596 CPUtime=37.49
/proc/23280/stat : 23280 (minisat) R 23278 23280 23243 0 -1 4194304 24386 0 0 0 3734 15 0 0 25 0 1 0 148924515 75362304 16383 1992294400 4194304 5092341 548682068848 18446744073709551615 4247030 0 0 4096 3 0 0 0 17 1 0 0
/proc/23280/statm: 18399 16383 103 219 0 18177 0
Current children cumulated CPU time (s) 37.49
Current children cumulated vsize (KiB) 73596

[startup+37.9014 s]
/proc/loadavg: 0.92 0.97 0.99 2/65 23281
/proc/meminfo: memFree=721320/2055920 swapFree=4181244/4192956
[pid=23280] ppid=23278 vsize=73596 CPUtime=37.88
/proc/23280/stat : 23280 (minisat) R 23278 23280 23243 0 -1 4194304 24396 0 0 0 3773 15 0 0 25 0 1 0 148924515 75362304 16393 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/23280/statm: 18399 16393 103 219 0 18177 0
Current children cumulated CPU time (s) 37.88
Current children cumulated vsize (KiB) 73596

[startup+38.3014 s]
/proc/loadavg: 0.92 0.97 0.99 2/65 23281
/proc/meminfo: memFree=721320/2055920 swapFree=4181244/4192956
[pid=23280] ppid=23278 vsize=73596 CPUtime=38.28
/proc/23280/stat : 23280 (minisat) R 23278 23280 23243 0 -1 4194304 24414 0 0 0 3813 15 0 0 25 0 1 0 148924515 75362304 16411 1992294400 4194304 5092341 548682068848 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/23280/statm: 18399 16411 103 219 0 18177 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 73596

Child status: 20
Real time (s): 38.3319
CPU time (s): 38.3222
CPU user time (s): 38.1582
CPU system time (s): 0.163975
CPU usage (%): 99.9747
Max. virtual memory (cumulated for all children) (KiB): 94036

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 38.1582
system time used= 0.163975
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 24425
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= 80

runsolver used 0.026995 second user time and 0.101984 second system time

The end

Launcher Data 

Begin job on node22 at 2009-05-01 22:15:10
IDJOB=1772972
IDBENCH=20421
IDSOLVER=608
FILE ID=node22/1772972-1241208909
PBS_JOBID= 9224708
Free space on /tmp= 66416 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT07/industrial/palacios/uts/uts-l06-ipc5-h28-unknown.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1772972-1241208909/watcher-1772972-1241208909 -o /tmp/evaluation-result-1772972-1241208909/solver-1772972-1241208909 -C 10000 -W 12000 -M 1800  HOME/minisat HOME/instance-1772972-1241208909.cnf

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

MD5SUM BENCH= ccc94758bbd09de3056ff3a062ddfd45
RANDOM SEED=891916066

node22.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:        787016 kB
Buffers:         80748 kB
Cached:        1081256 kB
SwapCached:       5556 kB
Active:         240412 kB
Inactive:       929364 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        787016 kB
SwapTotal:     4192956 kB
SwapFree:      4181244 kB
Dirty:           12744 kB
Writeback:           0 kB
Mapped:          13464 kB
Slab:            85116 kB
Committed_AS:   756620 kB
PageTables:       1368 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= 66416 MiB
End job on node22 at 2009-05-01 22:15:48