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).
  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

Namenormalized-opb/mps-v2-20-10/MIPLIB/miplib2003/normalized-mps-v2-20-10-mas76.opb
MD5SUM27d23262443a97061dfd41cca261928b
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483647
Optimality of the best value was proved NO
Number of terms in the objective function 240
Biggest coefficient in the objective function 1934281311383406679529881600000
Number of bits for the biggest coefficient in the objective function 101
Sum of the numbers in the objective function 3868562622766813359059763200000
Number of bits of the sum of numbers in the objective function 102
Biggest number in a constraint 1208925819614629174706176000000000
Number of bits of the biggest number in a constraint 110
Biggest sum of numbers in a constraint 2417851639229258349412352000000000
Number of bits of the biggest sum of numbers111
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1239.58
Number of variables240
Total number of constraints163
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)151
Number of constraints which are nor clauses,nor cardinality constraints12
Minimum length of a constraint1
Maximum length of a constraint239

Trace number 35196 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-05-28 12:24:44 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24504 boxname=wulflinc2 idbench=976 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  27d23262443a97061dfd41cca261928b  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-mas76.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-mas76.opb
IDLAUNCH: 24504
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        721672 kB
Buffers:         37164 kB
Cached:         253192 kB
SwapCached:        820 kB
Active:          23236 kB
Inactive:       269368 kB
HighTotal:      131008 kB
HighFree:        29400 kB
LowTotal:       903652 kB
LowFree:        692272 kB
SwapTotal:     2097136 kB
SwapFree:      2095480 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5340 kB
Slab:            14584 kB
Committed_AS:    71792 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:26:29 (client local time) WITH STATUS 1 IN 104.238 SECONDS
stats: 24504 7 104.238 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.89 0.92 0.90 1/54 10328
Raw data (stat): 10328 (runsolver) D 10327 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806563712 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 3225161850 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0072 s]
Raw data (loadavg): 0.90 0.92 0.90 2/54 10328
Raw data (stat): 10328 (pb2sat) R 10327 31399 31398 0 -1 0 31843 0 0 0 932 68 0 0 25 0 1 0 806563712 91774976 20683 4294967295 134512640 135726644 3221224592 3221124856 135281330 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22406 20683 300 300 0 22106 0
vsize: 89624
[startup+20.017 s]
Raw data (loadavg): 0.92 0.92 0.91 2/54 10328
Raw data (stat): 10328 (pb2sat) R 10327 31399 31398 0 -1 0 62583 0 0 0 1871 129 0 0 25 0 1 0 806563712 181760000 40433 4294967295 134512640 135726644 3221224592 3221153248 134766450 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 44375 40433 300 300 0 44075 0
vsize: 177500
[startup+30.0177 s]
Raw data (loadavg): 0.93 0.92 0.91 2/54 10328
Raw data (stat): 10328 (pb2sat) R 10327 31399 31398 0 -1 0 101131 0 0 0 2793 207 0 0 25 0 1 0 806563712 332062720 56776 4294967295 134512640 135726644 3221224592 3221164544 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 81070 56776 300 300 0 80770 0
vsize: 324280
[startup+40.0253 s]
Raw data (loadavg): 0.94 0.93 0.91 2/54 10328
Raw data (stat): 10328 (pb2sat) R 10327 31399 31398 0 -1 0 122579 0 0 0 3750 252 0 0 25 0 1 0 806563712 360468480 77940 4294967295 134512640 135726644 3221224592 3221185072 134560117 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 88005 77940 300 300 0 87705 0
vsize: 352020
[startup+50.0331 s]
Raw data (loadavg): 0.95 0.93 0.91 2/54 10328
Raw data (stat): 10328 (pb2sat) R 10327 31399 31398 0 -1 0 161592 0 0 0 4677 326 0 0 25 0 1 0 806563712 481538048 97350 4294967295 134512640 135726644 3221224592 3221194668 134558971 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 117563 97350 300 300 0 117263 0
vsize: 470252
[startup+60.0328 s]
Raw data (loadavg): 0.96 0.93 0.91 2/54 10328
Raw data (stat): 10328 (pb2sat) R 10327 31399 31398 0 -1 0 197552 0 0 0 5601 402 0 0 25 0 1 0 806563712 582201344 108506 4294967295 134512640 135726644 3221224592 3221209344 134554579 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 142139 108506 300 300 0 141839 0
vsize: 568556
[startup+70.0475 s]
Raw data (loadavg): 0.96 0.93 0.91 2/54 10328
Raw data (stat): 10328 (pb2sat) R 10327 31399 31398 0 -1 0 205444 0 0 0 6583 421 0 0 25 0 1 0 806563712 619323392 116252 4294967295 134512640 135726644 3221224592 3221139512 135280920 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 151202 116252 300 300 0 150902 0
vsize: 604808
[startup+80.0508 s]
Raw data (loadavg): 0.97 0.93 0.91 2/54 10328
Raw data (stat): 10328 (pb2sat) R 10327 31399 31398 0 -1 0 218399 0 0 0 7556 448 0 0 25 0 1 0 806563712 620486656 128946 4294967295 134512640 135726644 3221224592 3221142768 134605187 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 151486 128946 300 300 0 151186 0
vsize: 605944
[startup+90.0499 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 10328
Raw data (stat): 10328 (pb2sat) R 10327 31399 31398 0 -1 0 231047 0 0 0 8530 474 0 0 25 0 1 0 806563712 621690880 141342 4294967295 134512640 135726644 3221224592 3221141912 135280696 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 151780 141342 300 300 0 151480 0
vsize: 607120
[startup+100.05 s]
Raw data (loadavg): 0.98 0.94 0.91 2/54 10328
Raw data (stat): 10328 (pb2sat) R 10327 31399 31398 0 -1 0 255358 0 0 0 9472 532 0 0 25 0 1 0 806563712 321662976 78302 4294967295 134512640 135726644 3221224592 3221222992 134778976 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 78531 78302 300 300 0 78231 0
vsize: 314124
[startup+104.248 s]
Raw data (loadavg): 0.98 0.94 0.91 1/53 10328
Raw data (stat): 10328 (pb2sat) R 10327 31399 31398 0 -1 0 255358 0 0 0 9472 532 0 0 25 0 1 0 806563712 321662976 78302 4294967295 134512640 135726644 3221224592 3221222992 134778976 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 78531 78302 300 300 0 78231 0
vsize: 0

Child status: 1
Real time (s): 104.248
CPU time (s): 104.238
CPU user time (s): 98.748
CPU system time (s): 5.49017
CPU usage (%): 99.9905
Max. virtual memory (Kb): 607120
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####