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/miplib/normalized-mps-v2-20-10-p0282.opb
MD5SUMa733e9fa1e4e3ac90baf85249f7c3e9a
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 258411
Optimality of the best value was proved NO
Number of terms in the objective function 282
Biggest coefficient in the objective function 160646
Number of bits for the biggest coefficient in the objective function 18
Sum of the numbers in the objective function 1302615
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 160646
Number of bits of the biggest number in a constraint 18
Biggest sum of numbers in a constraint 1302615
Number of bits of the biggest sum of numbers21
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.01984
Number of variables282
Total number of constraints523
Number of constraints which are clauses177
Number of constraints which are cardinality constraints (but not clauses)282
Number of constraints which are nor clauses,nor cardinality constraints64
Minimum length of a constraint1
Maximum length of a constraint57

Trace number 42414 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-16 07:03:03 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25634 boxname=wulflinc6 idbench=934 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a733e9fa1e4e3ac90baf85249f7c3e9a  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-p0282.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-p0282.opb
IDLAUNCH: 25634
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        738412 kB
Buffers:         33324 kB
Cached:         240572 kB
SwapCached:       1028 kB
Active:          32120 kB
Inactive:       243980 kB
HighTotal:      131008 kB
HighFree:        14952 kB
LowTotal:       903652 kB
LowFree:        723460 kB
SwapTotal:     2097136 kB
SwapFree:      2095200 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5092 kB
Slab:            14492 kB
Committed_AS:    63836 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 07:04:54 (client local time) WITH STATUS 1 IN 110.242 SECONDS
stats: 25634 7 110.242 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 746317
c small objective detected

	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): 0.91 0.95 0.91 1/54 15800
Raw data (stat): 15800 (runsolver) R 15799 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968811128 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.001 s]
Raw data (loadavg): 0.92 0.95 0.91 2/54 15800
Raw data (stat): 15800 (pb2sat-v2) R 15799 25568 25567 0 -1 0 28933 0 0 0 939 60 0 0 25 0 1 0 968811128 87867392 17968 4294967295 134512640 135730672 3221224576 3221134168 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21452 17969 301 301 0 21151 0
vsize: 85808
[startup+20.0018 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 15800
Raw data (stat): 15800 (pb2sat-v2) R 15799 25568 25567 0 -1 0 57332 0 0 0 1882 117 0 0 25 0 1 0 968811128 173830144 35154 4294967295 134512640 135730672 3221224576 3221160696 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42439 35154 301 301 0 42138 0
vsize: 169756
[startup+30.0023 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 15800
Raw data (stat): 15800 (pb2sat-v2) R 15799 25568 25567 0 -1 0 97387 0 0 0 2802 197 0 0 25 0 1 0 968811128 297463808 53023 4294967295 134512640 135730672 3221224576 3221175000 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72623 53023 301 301 0 72322 0
vsize: 290492
[startup+40.0024 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 15800
Raw data (stat): 15800 (pb2sat-v2) R 15799 25568 25567 0 -1 0 112690 0 0 0 3772 228 0 0 25 0 1 0 968811128 343322624 68107 4294967295 134512640 135730672 3221224576 3221162448 134611002 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 83819 68108 301 301 0 83518 0
vsize: 335276
[startup+50.0033 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 15800
Raw data (stat): 15800 (pb2sat-v2) R 15799 25568 25567 0 -1 0 136797 0 0 0 4728 273 0 0 25 0 1 0 968811128 521486336 91829 4294967295 134512640 135730672 3221224576 3221190320 134775419 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 127316 91832 301 301 0 127015 0
vsize: 509264
[startup+60.0037 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 15800
Raw data (stat): 15800 (pb2sat-v2) R 15799 25568 25567 0 -1 0 193200 0 0 0 5619 382 0 0 25 0 1 0 968811128 595046400 104262 4294967295 134512640 135730672 3221224576 3221158160 134786278 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145275 104262 301 301 0 144974 0
vsize: 581100
[startup+70.0049 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 15800
Raw data (stat): 15800 (pb2sat-v2) R 15799 25568 25567 0 -1 0 204122 0 0 0 6597 405 0 0 25 0 1 0 968811128 628600832 114991 4294967295 134512640 135730672 3221224576 3221177784 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153467 114991 301 301 0 153166 0
vsize: 613868
[startup+80.0057 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 15800
Raw data (stat): 15800 (pb2sat-v2) R 15799 25568 25567 0 -1 0 220548 0 0 0 7566 435 0 0 25 0 1 0 968811128 644280320 131195 4294967295 134512640 135730672 3221224576 3221184280 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157295 131195 301 301 0 156994 0
vsize: 629180
[startup+90.0063 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 15800
Raw data (stat): 15800 (pb2sat-v2) R 15799 25568 25567 0 -1 0 240011 0 0 0 8530 472 0 0 25 0 1 0 968811128 672124928 150433 4294967295 134512640 135730672 3221224576 3221182968 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 164093 150436 301 301 0 163792 0
vsize: 656372
[startup+100.006 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 15800
Raw data (stat): 15800 (pb2sat-v2) R 15799 25568 25567 0 -1 0 255521 0 0 0 9500 503 0 0 25 0 1 0 968811128 744488960 165764 4294967295 134512640 135730672 3221224576 3221162384 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 181760 165764 301 301 0 181459 0
vsize: 727040
[startup+110.007 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 15800
Raw data (stat): 15800 (pb2sat-v2) R 15799 25568 25567 0 -1 0 264796 0 0 0 10468 534 0 0 25 0 1 0 968811128 397725696 96681 4294967295 134512640 135730672 3221224576 3221222900 135282202 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97101 96681 301 301 0 96800 0
vsize: 388404
[startup+110.221 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 15800
Raw data (stat): 15800 (pb2sat-v2) R 15799 25568 25567 0 -1 0 264796 0 0 0 10468 534 0 0 25 0 1 0 968811128 397725696 96681 4294967295 134512640 135730672 3221224576 3221222900 135282202 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97101 96681 301 301 0 96800 0
vsize: 0

Child status: 1
Real time (s): 110.221
CPU time (s): 110.242
CPU user time (s): 104.694
CPU system time (s): 5.54816
CPU usage (%): 100.019
Max. virtual memory (Kb): 727040
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####