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-degen2.opb
MD5SUM2d6764e721075c7867e38358b7c5ac96
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 14100
Biggest coefficient in the objective function 2553894928384
Number of bits for the biggest coefficient in the objective function 42
Sum of the numbers in the objective function 401268056673330
Number of bits of the sum of numbers in the objective function 49
Biggest number in a constraint 2553894928384
Number of bits of the biggest number in a constraint 42
Biggest sum of numbers in a constraint 401268056673330
Number of bits of the biggest sum of numbers49
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.137978
Number of variables16020
Total number of constraints444
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 constraints444
Minimum length of a constraint60
Maximum length of a constraint2550

Trace number 35040 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc13 THE 2005-05-28 12:04:07 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24351 boxname=wulflinc13 idbench=823 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  2d6764e721075c7867e38358b7c5ac96  /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-degen2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-degen2.opb
IDLAUNCH: 24351
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.242
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		: 451.242
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:        746360 kB
Buffers:         35988 kB
Cached:         230976 kB
SwapCached:        548 kB
Active:          25504 kB
Inactive:       243472 kB
HighTotal:      131008 kB
HighFree:        50316 kB
LowTotal:       903652 kB
LowFree:        696044 kB
SwapTotal:     2097136 kB
SwapFree:      2095648 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5140 kB
Slab:            13564 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:05:54 (client local time) WITH STATUS 1 IN 107.052 SECONDS
stats: 24351 7 107.052 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): 1.05 0.98 0.91 2/54 6456
Raw data (stat): 6456 (runsolver) R 6455 1269 1268 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806443364 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+9.99975 s]
Raw data (loadavg): 1.05 0.98 0.91 2/54 6456
Raw data (stat): 6456 (pb2sat) R 6455 1269 1268 0 -1 0 22261 0 0 0 950 48 0 0 25 0 1 0 806443364 68931584 14249 4294967295 134512640 135726644 3221224576 3215672656 134560113 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 16829 14249 300 300 0 16529 0
vsize: 67316
[startup+20.0086 s]
Raw data (loadavg): 1.04 0.98 0.91 2/54 6456
Raw data (stat): 6456 (pb2sat) R 6455 1269 1268 0 -1 0 54552 0 0 0 1882 116 0 0 25 0 1 0 806443364 177754112 32232 4294967295 134512640 135726644 3221224576 3215789292 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43397 32232 300 300 0 43097 0
vsize: 173588
[startup+30.0079 s]
Raw data (loadavg): 1.03 0.98 0.91 2/54 6456
Raw data (stat): 6456 (pb2sat) R 6455 1269 1268 0 -1 0 84217 0 0 0 2821 176 0 0 25 0 1 0 806443364 251863040 51955 4294967295 134512640 135726644 3221224576 3215768952 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 61490 51955 300 300 0 61190 0
vsize: 245960
[startup+40.0095 s]
Raw data (loadavg): 1.03 0.98 0.91 2/54 6456
Raw data (stat): 6456 (pb2sat) R 6455 1269 1268 0 -1 0 113332 0 0 0 3758 240 0 0 25 0 1 0 806443364 354672640 68548 4294967295 134512640 135726644 3221224576 3215695024 134605151 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 86590 68549 300 300 0 86290 0
vsize: 346360
[startup+50.0106 s]
Raw data (loadavg): 1.02 0.98 0.91 2/54 6456
Raw data (stat): 6456 (pb2sat) R 6455 1269 1268 0 -1 0 158037 0 0 0 4676 322 0 0 25 0 1 0 806443364 563785728 112039 4294967295 134512640 135726644 3221224576 3215716960 134772474 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 137643 112039 300 300 0 137343 0
vsize: 550572
[startup+60.0098 s]
Raw data (loadavg): 1.09 1.00 0.92 2/54 6456
Raw data (stat): 6456 (pb2sat) R 6455 1269 1268 0 -1 0 192966 0 0 0 5599 400 0 0 25 0 1 0 806443364 597336064 103781 4294967295 134512640 135726644 3221224576 3215751320 134554775 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 145834 103781 300 300 0 145534 0
vsize: 583336
[startup+70.0095 s]
Raw data (loadavg): 1.08 1.00 0.92 2/54 6458
Raw data (stat): 6456 (pb2sat) R 6455 1269 1268 0 -1 0 206239 0 0 0 6571 428 0 0 25 0 1 0 806443364 636162048 116828 4294967295 134512640 135726644 3221224576 3215586960 134771446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 155313 116829 300 300 0 155013 0
vsize: 621252
[startup+80.0095 s]
Raw data (loadavg): 1.06 1.00 0.92 2/54 6458
Raw data (stat): 6456 (pb2sat) R 6455 1269 1268 0 -1 0 228319 0 0 0 7526 473 0 0 25 0 1 0 806443364 670101504 138649 4294967295 134512640 135726644 3221224576 3215608128 134554706 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 163599 138649 300 300 0 163299 0
vsize: 654396
[startup+90.0092 s]
Raw data (loadavg): 1.05 1.00 0.92 2/54 6458
Raw data (stat): 6456 (pb2sat) R 6455 1269 1268 0 -1 0 250189 0 0 0 8478 521 0 0 25 0 1 0 806443364 703242240 160260 4294967295 134512640 135726644 3221224576 3215862464 134766969 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 171690 160261 300 300 0 171390 0
vsize: 686760
[startup+100.01 s]
Raw data (loadavg): 1.05 1.00 0.92 2/54 6458
Raw data (stat): 6456 (pb2sat) R 6455 1269 1268 0 -1 0 259123 0 0 0 9459 540 0 0 25 0 1 0 806443364 767606784 169034 4294967295 134512640 135726644 3221224576 3221222896 135279084 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 187404 169034 300 300 0 187104 0
vsize: 749616
[startup+107.072 s]
Raw data (loadavg): 1.04 1.00 0.92 1/53 6458
Raw data (stat): 6456 (pb2sat) R 6455 1269 1268 0 -1 0 259123 0 0 0 9459 540 0 0 25 0 1 0 806443364 767606784 169034 4294967295 134512640 135726644 3221224576 3221222896 135279084 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 187404 169034 300 300 0 187104 0
vsize: 0

Child status: 1
Real time (s): 107.071
CPU time (s): 107.052
CPU user time (s): 101.305
CPU system time (s): 5.74713
CPU usage (%): 99.9818
Max. virtual memory (Kb): 749616
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####