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-v2-13-7/MIPLIB/miplib/normalized-mps-v2-13-7-air02.opb
MD5SUM75acdcffdd43b3d3a30d0459a6bffe45
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 6106
Optimality of the best value was proved NO
Number of terms in the objective function 6774
Biggest coefficient in the objective function 4804
Number of bits for the biggest coefficient in the objective function 13
Sum of the numbers in the objective function 6613094
Number of bits of the sum of numbers in the objective function 23
Biggest number in a constraint 4804
Number of bits of the biggest number in a constraint 13
Biggest sum of numbers in a constraint 6613094
Number of bits of the biggest sum of numbers23
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.21
Number of variables6774
Total number of constraints6824
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)6824
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint3729

Trace number 35506 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc27 THE 2005-05-28 13:19:48 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24807 boxname=wulflinc27 idbench=1279 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  75acdcffdd43b3d3a30d0459a6bffe45  /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-air02.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-air02.opb
IDLAUNCH: 24807
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
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	: 3
cpu MHz		: 451.169
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:        748392 kB
Buffers:         34240 kB
Cached:         221756 kB
SwapCached:        704 kB
Active:          22796 kB
Inactive:       235212 kB
HighTotal:      131008 kB
HighFree:        40628 kB
LowTotal:       903652 kB
LowFree:        707764 kB
SwapTotal:     2097892 kB
SwapFree:      2096316 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5128 kB
Slab:            22536 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:21:29 (client local time) WITH STATUS 1 IN 100.729 SECONDS
stats: 24807 7 100.729 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): 0.91 0.95 0.90 2/54 20608
Raw data (stat): 20608 (runsolver) R 20607 3394 3393 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 865106496 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0003 s]
Raw data (loadavg): 0.92 0.95 0.91 2/54 20608
Raw data (stat): 20608 (pb2sat) R 20607 3394 3393 0 -1 0 27438 0 0 0 942 57 0 0 25 0 1 0 865106496 81502208 16312 4294967295 134512640 135726644 3221224576 3220303832 134607251 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 19898 16313 300 300 0 19598 0
vsize: 79592
[startup+20.0001 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 20608
Raw data (stat): 20608 (pb2sat) R 20607 3394 3393 0 -1 0 56118 0 0 0 1881 118 0 0 25 0 1 0 865106496 177876992 33751 4294967295 134512640 135726644 3221224576 3220837476 135287436 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43427 33752 300 300 0 43127 0
vsize: 173708
[startup+29.9999 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 20608
Raw data (stat): 20608 (pb2sat) R 20607 3394 3393 0 -1 0 83602 0 0 0 2823 176 0 0 25 0 1 0 865106496 244957184 51284 4294967295 134512640 135726644 3221224576 3218709004 134634291 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 59804 51285 300 300 0 59504 0
vsize: 239216
[startup+40.0007 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 20608
Raw data (stat): 20608 (pb2sat) R 20607 3394 3393 0 -1 0 113193 0 0 0 3755 245 0 0 25 0 1 0 865106496 353038336 68351 4294967295 134512640 135726644 3221224576 3218964552 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 86191 68351 300 300 0 85891 0
vsize: 344764
[startup+50.0016 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 20608
Raw data (stat): 20608 (pb2sat) R 20607 3394 3393 0 -1 0 153779 0 0 0 4676 324 0 0 25 0 1 0 865106496 485576704 89333 4294967295 134512640 135726644 3221224576 3220984828 135298010 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 118549 89333 300 300 0 118249 0
vsize: 474196
[startup+60.0014 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 20608
Raw data (stat): 20608 (pb2sat) R 20607 3394 3393 0 -1 0 167088 0 0 0 5649 351 0 0 25 0 1 0 865106496 485576704 102368 4294967295 134512640 135726644 3221224576 3220111180 135280476 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 118549 102368 300 300 0 118249 0
vsize: 474196
[startup+70.0012 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 20608
Raw data (stat): 20608 (pb2sat) R 20607 3394 3393 0 -1 0 207655 0 0 0 6561 439 0 0 25 0 1 0 865106496 605433856 118127 4294967295 134512640 135726644 3221224576 3218658880 134782642 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 147811 118129 300 300 0 147511 0
vsize: 591244
[startup+80.002 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 20608
Raw data (stat): 20608 (pb2sat) R 20607 3394 3393 0 -1 0 225431 0 0 0 7523 478 0 0 25 0 1 0 865106496 666292224 135679 4294967295 134512640 135726644 3221224576 3219741792 134784500 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 162669 135680 300 300 0 162369 0
vsize: 650676
[startup+90.0018 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 20608
Raw data (stat): 20608 (pb2sat) R 20607 3394 3393 0 -1 0 247648 0 0 0 8477 524 0 0 25 0 1 0 865106496 704815104 157635 4294967295 134512640 135726644 3221224576 3218758552 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 172074 157636 300 300 0 171774 0
vsize: 688296
[startup+100.003 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 20608
Raw data (stat): 20608 (pb2sat) R 20607 3394 3393 0 -1 0 249056 0 0 0 9461 538 0 0 25 0 1 0 865106496 396824576 96443 4294967295 134512640 135726644 3221224576 3221222940 135280433 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 96881 96443 300 300 0 96581 0
vsize: 387524
[startup+100.728 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 20608
Raw data (stat): 20608 (pb2sat) R 20607 3394 3393 0 -1 0 249056 0 0 0 9461 538 0 0 25 0 1 0 865106496 396824576 96443 4294967295 134512640 135726644 3221224576 3221222940 135280433 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 96881 96443 300 300 0 96581 0
vsize: 0

Child status: 1
Real time (s): 100.727
CPU time (s): 100.729
CPU user time (s): 95.1565
CPU system time (s): 5.57215
CPU usage (%): 100.002
Max. virtual memory (Kb): 688296
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####