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 in four parts:
  1. 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 provide some useful information on the computer.
  2. 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 !
  3. 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 1200 seconds. 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 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
    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.
  4. 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.

General information on the benchmark

Namemps-v2-13-7/MIPLIB/miplib/normalized-mps-v2-13-7-bell5.opb
MD5SUMfa1c29f360870381638d135cd26eadfd
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 181644428760406
Optimality of the best value was proved NO
Number of terms in the objective function 948
Biggest coefficient in the objective function 6291456000000000
Number of bits for the biggest coefficient in the objective function 53
Sum of the numbers in the objective function 104362034158211275
Number of bits of the sum of numbers in the objective function 57
Biggest number in a constraint 6291456000000000
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 104362034158211275
Number of bits of the biggest sum of numbers57
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1228.67
Number of variables1244
Total number of constraints149
Number of constraints which are clauses15
Number of constraints which are cardinality constraints (but not clauses)30
Number of constraints which are nor clauses,nor cardinality constraints104
Minimum length of a constraint1
Maximum length of a constraint95

Trace number 10350

Launcher Data

LAUNCH ON wulflinc14 THE 2005-09-23 17:52:54 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9091 boxname=wulflinc14 idbench=887 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  fa1c29f360870381638d135cd26eadfd  /oldhome/oroussel/tmp/wulflinc14/normalized-mps-v2-13-7-bell5.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc14/normalized-mps-v2-13-7-bell5.opb
IDLAUNCH: 9091
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.058
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.058
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        982972 kB
Buffers:          2568 kB
Cached:          31976 kB
SwapCached:          0 kB
Active:          16912 kB
Inactive:        20592 kB
HighTotal:      131008 kB
HighFree:        94668 kB
LowTotal:       903652 kB
LowFree:        888304 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8420 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:55:02 (client local time) WITH STATUS 1 IN 127.525 SECONDS
stats: 9091 7 127.525 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 795858874296654
c big objective detected
c trying from 0 to 511
c CONFLICT during preprocess 
c trying from 512 to 1023
c CONFLICT during preprocess 
c trying from 1024 to 1535

	Unexpected exception :
	St9bad_alloc

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/9402/stat): 9402 (pb2sat) R 9401 9402 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22135120 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9402/statm): 373 2 364 364 0 9 0
[pid=9402] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc14/normalized-mps-v2-13-7-bell5.opb

[startup+10.002 s]
Raw data (loadavg): 0.92 0.95 0.95 2/55 9402
Raw data (/proc/9402/stat): 9402 (pb2sat) R 9401 9402 4060 0 -1 0 27532 0 0 0 935 62 0 0 25 0 1 0 22135120 81772544 16369 4294967295 134512640 135987407 3221224560 3221211280 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9402/statm): 19964 16369 364 364 0 19600 0
[pid=9402] vsize: 79856
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 79856

[startup+20.0027 s]
Raw data (loadavg): 0.94 0.95 0.95 2/55 9402
Raw data (/proc/9402/stat): 9402 (pb2sat) R 9401 9402 4060 0 -1 0 50973 0 0 0 1870 117 0 0 25 0 1 0 22135120 147984384 27975 4294967295 134512640 135987407 3221224560 3220969704 134887782 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9402/statm): 36129 27975 364 364 0 35765 0
[pid=9402] vsize: 144516
Current children cumulated CPU time (s) 19.87
Current children cumulated vsize (Kb) 144516

[startup+30.0034 s]
Raw data (loadavg): 0.94 0.95 0.95 2/55 9402
Raw data (/proc/9402/stat): 9402 (pb2sat) R 9401 9402 4060 0 -1 0 81231 0 0 0 2801 183 0 0 25 0 1 0 22135120 245788672 48291 4294967295 134512640 135987407 3221224560 3221179488 134860991 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9402/statm): 60007 48291 364 364 0 59643 0
[pid=9402] vsize: 240028
Current children cumulated CPU time (s) 29.84
Current children cumulated vsize (Kb) 240028

[startup+40.004 s]
Raw data (loadavg): 0.95 0.95 0.95 2/55 9402
Raw data (/proc/9402/stat): 9402 (pb2sat) R 9401 9402 4060 0 -1 0 109376 0 0 0 3736 246 0 0 25 0 1 0 22135120 353599488 63934 4294967295 134512640 135987407 3221224560 3221160464 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9402/statm): 86328 63934 364 364 0 85964 0
[pid=9402] vsize: 345312
Current children cumulated CPU time (s) 39.82
Current children cumulated vsize (Kb) 345312

[startup+50.0047 s]
Raw data (loadavg): 0.96 0.95 0.95 2/55 9402
Raw data (/proc/9402/stat): 9402 (pb2sat) R 9401 9402 4060 0 -1 0 131721 0 0 0 4677 301 0 0 25 0 1 0 22135120 421679104 83768 4294967295 134512640 135987407 3221224560 3221139588 135479884 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9402/statm): 102949 83768 364 364 0 102585 0
[pid=9402] vsize: 411796
Current children cumulated CPU time (s) 49.78
Current children cumulated vsize (Kb) 411796

[startup+60.0054 s]
Raw data (loadavg): 0.97 0.95 0.95 2/55 9402
Raw data (/proc/9402/stat): 9402 (pb2sat) R 9401 9402 4060 0 -1 0 169390 0 0 0 5600 375 0 0 25 0 1 0 22135120 537194496 101799 4294967295 134512640 135987407 3221224560 3220962896 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9402/statm): 131151 101800 364 364 0 130787 0
[pid=9402] vsize: 524604
Current children cumulated CPU time (s) 59.75
Current children cumulated vsize (Kb) 524604

[startup+70.006 s]
Raw data (loadavg): 0.97 0.96 0.95 2/55 9402
Raw data (/proc/9402/stat): 9402 (pb2sat) R 9401 9402 4060 0 -1 0 182346 0 0 0 6572 403 0 0 25 0 1 0 22135120 541519872 114502 4294967295 134512640 135987407 3221224560 3221024528 134856714 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9402/statm): 132207 114502 364 364 0 131843 0
[pid=9402] vsize: 528828
Current children cumulated CPU time (s) 69.75
Current children cumulated vsize (Kb) 528828

[startup+80.0057 s]
Raw data (loadavg): 0.97 0.96 0.95 2/55 9402
Raw data (/proc/9402/stat): 9402 (pb2sat) R 9401 9402 4060 0 -1 0 221889 0 0 0 7487 487 0 0 25 0 1 0 22135120 663945216 129263 4294967295 134512640 135987407 3221224560 3221071696 134537412 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9402/statm): 162096 129263 364 364 0 161732 0
[pid=9402] vsize: 648384
Current children cumulated CPU time (s) 79.74
Current children cumulated vsize (Kb) 648384

[startup+90.0054 s]
Raw data (loadavg): 0.98 0.96 0.95 2/55 9402
Raw data (/proc/9402/stat): 9402 (pb2sat) R 9401 9402 4060 0 -1 0 232772 0 0 0 8462 510 0 0 25 0 1 0 22135120 681533440 139995 4294967295 134512640 135987407 3221224560 3221131520 134537352 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9402/statm): 166390 139995 364 364 0 166026 0
[pid=9402] vsize: 665560
Current children cumulated CPU time (s) 89.72
Current children cumulated vsize (Kb) 665560

[startup+100.005 s]
Raw data (loadavg): 0.98 0.96 0.95 2/55 9402
Raw data (/proc/9402/stat): 9402 (pb2sat) R 9401 9402 4060 0 -1 0 248139 0 0 0 9428 543 0 0 25 0 1 0 22135120 718458880 153588 4294967295 134512640 135987407 3221224560 3221222992 134829342 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9402/statm): 175405 153588 364 364 0 175041 0
[pid=9402] vsize: 701620
Current children cumulated CPU time (s) 99.71
Current children cumulated vsize (Kb) 701620

[startup+110.006 s]
Raw data (loadavg): 0.98 0.96 0.95 2/55 9402
Raw data (/proc/9402/stat): 9402 (pb2sat) R 9401 9402 4060 0 -1 0 278882 0 0 0 10340 623 0 0 25 0 1 0 22135120 823672832 178929 4294967295 134512640 135987407 3221224560 3221222956 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9402/statm): 201092 178930 364 364 0 200728 0
[pid=9402] vsize: 804368
Current children cumulated CPU time (s) 109.63
Current children cumulated vsize (Kb) 804368

[startup+120.005 s]
Raw data (loadavg): 0.99 0.96 0.95 2/55 9402
Raw data (/proc/9402/stat): 9402 (pb2sat) R 9401 9402 4060 0 -1 0 288085 0 0 0 11318 645 0 0 25 0 1 0 22135120 826916864 187904 4294967295 134512640 135987407 3221224560 3221023664 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9402/statm): 201884 187904 364 364 0 201520 0
[pid=9402] vsize: 807536
Current children cumulated CPU time (s) 119.63
Current children cumulated vsize (Kb) 807536
One traced child (pid=9402) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 127.901
CPU time (s): 127.525
CPU user time (s): 120.661
CPU system time (s): 6.86396
CPU usage (%): 99.7056
Max. virtual memory (cumulated for all children) (Kb): 807536

Verifier Data

ERROR: no interpretation found !