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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-bandm.opb
MD5SUM91d5c8ee9bf634f10149ce0f1ab46e94
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 4710
Biggest coefficient in the objective function 53687091200000
Number of bits for the biggest coefficient in the objective function 46
Sum of the numbers in the objective function 4557677556349764
Number of bits of the sum of numbers in the objective function 53
Biggest number in a constraint 111669149696000
Number of bits of the biggest number in a constraint 47
Biggest sum of numbers in a constraint 4557677556349764
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.12498
Number of variables14160
Total number of constraints305
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints305
Minimum length of a constraint30
Maximum length of a constraint2100

Trace number 42290 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-16 05:13:12 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25509 boxname=wulflinc2 idbench=809 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  91d5c8ee9bf634f10149ce0f1ab46e94  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-bandm.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-bandm.opb
IDLAUNCH: 25509
/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:        821892 kB
Buffers:         34512 kB
Cached:         152392 kB
SwapCached:       4448 kB
Active:          62940 kB
Inactive:       129088 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        821640 kB
SwapTotal:     2097136 kB
SwapFree:      2091696 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5056 kB
Slab:            15028 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:15:04 (client local time) WITH STATUS 1 IN 111.729 SECONDS
stats: 25509 7 111.729 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 0.93 0.90 2/54 4334
Raw data (stat): 4334 (runsolver) R 4333 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968156889 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+10.0005 s]
Raw data (loadavg): 0.92 0.94 0.91 2/54 4334
Raw data (stat): 4334 (pb2sat-v2) R 4333 31399 31398 0 -1 0 26668 0 0 0 943 55 0 0 25 0 1 0 968156889 81170432 15545 4294967295 134512640 135730672 3221224576 3221194944 134611253 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 19817 15545 301 301 0 19516 0
vsize: 79268
[startup+20.0069 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 4334
Raw data (stat): 4334 (pb2sat-v2) R 4333 31399 31398 0 -1 0 52527 0 0 0 1892 107 0 0 25 0 1 0 968156889 159801344 30452 4294967295 134512640 135730672 3221224576 3221172648 135284348 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 39014 30453 301 301 0 38713 0
vsize: 156056
[startup+30.0067 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 4334
Raw data (stat): 4334 (pb2sat-v2) R 4333 31399 31398 0 -1 0 92466 0 0 0 2812 187 0 0 25 0 1 0 968156889 280313856 48198 4294967295 134512640 135730672 3221224576 3221195052 135291115 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 68436 48198 301 301 0 68135 0
vsize: 273744
[startup+40.0064 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 4334
Raw data (stat): 4334 (pb2sat-v2) R 4333 31399 31398 0 -1 0 104677 0 0 0 3788 211 0 0 25 0 1 0 968156889 320356352 60211 4294967295 134512640 135730672 3221224576 3221160640 134732162 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 78212 60212 301 301 0 77911 0
vsize: 312848
[startup+50.0074 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 4334
Raw data (stat): 4334 (pb2sat-v2) R 4333 31399 31398 0 -1 0 119860 0 0 0 4758 242 0 0 25 0 1 0 968156889 328880128 75150 4294967295 134512640 135730672 3221224576 3221191256 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 80293 75151 301 301 0 79992 0
vsize: 321172
[startup+60.0068 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 4334
Raw data (stat): 4334 (pb2sat-v2) R 4333 31399 31398 0 -1 0 179021 0 0 0 5647 353 0 0 25 0 1 0 968156889 547614720 91213 4294967295 134512640 135730672 3221224576 3221200688 134813883 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 133695 91213 301 301 0 133394 0
vsize: 534780
[startup+70.0075 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 4334
Raw data (stat): 4334 (pb2sat-v2) R 4333 31399 31398 0 -1 0 188286 0 0 0 6625 374 0 0 25 0 1 0 968156889 581181440 100306 4294967295 134512640 135730672 3221224576 3221149032 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 141890 100306 301 301 0 141589 0
vsize: 567560
[startup+80.0086 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 4334
Raw data (stat): 4334 (pb2sat-v2) R 4333 31399 31398 0 -1 0 201472 0 0 0 7599 401 0 0 25 0 1 0 968156889 581181440 113246 4294967295 134512640 135730672 3221224576 3221178144 134770727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 141890 113246 301 301 0 141589 0
vsize: 567560
[startup+90.0079 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 4334
Raw data (stat): 4334 (pb2sat-v2) R 4333 31399 31398 0 -1 0 218457 0 0 0 8565 435 0 0 25 0 1 0 968156889 595509248 129981 4294967295 134512640 135730672 3221224576 3221220880 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145388 129981 301 301 0 145087 0
vsize: 581552
[startup+100.008 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 4334
Raw data (stat): 4334 (pb2sat-v2) R 4333 31399 31398 0 -1 0 227660 0 0 0 9547 453 0 0 25 0 1 0 968156889 646111232 139013 4294967295 134512640 135730672 3221224576 3221175856 134770712 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157742 139013 301 301 0 157441 0
vsize: 630968
[startup+110.01 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 4334
Raw data (stat): 4334 (pb2sat-v2) R 4333 31399 31398 0 -1 0 237096 0 0 0 10513 487 0 0 25 0 1 0 968156889 302563328 73680 4294967295 134512640 135730672 3221224576 3221222976 134782612 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73868 73680 301 301 0 73567 0
vsize: 295472
[startup+111.737 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 4334
Raw data (stat): 4334 (pb2sat-v2) R 4333 31399 31398 0 -1 0 237096 0 0 0 10513 487 0 0 25 0 1 0 968156889 302563328 73680 4294967295 134512640 135730672 3221224576 3221222976 134782612 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73868 73680 301 301 0 73567 0
vsize: 0

Child status: 1
Real time (s): 111.737
CPU time (s): 111.729
CPU user time (s): 106.699
CPU system time (s): 5.03023
CPU usage (%): 99.9929
Max. virtual memory (Kb): 630968
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####