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-cycle.opb
MD5SUMe48dda95f8e39d614f3e3f822031bbe2
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 9240
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 1737924154969464
Number of bits of the sum of numbers in the objective function 51
Biggest number in a constraint 48888431614361600
Number of bits of the biggest number in a constraint 56
Biggest sum of numbers in a constraint 779202693141814557
Number of bits of the biggest sum of numbers60
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.763883
Number of variables84737
Total number of constraints1961
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 constraints1961
Minimum length of a constraint11
Maximum length of a constraint1470

Trace number 42301 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-16 05:19:48 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25519 boxname=wulflinc2 idbench=819 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  e48dda95f8e39d614f3e3f822031bbe2  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-cycle.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-cycle.opb
IDLAUNCH: 25519
/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:        787516 kB
Buffers:         34560 kB
Cached:         186276 kB
SwapCached:       4448 kB
Active:          76412 kB
Inactive:       149524 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        787264 kB
SwapTotal:     2097136 kB
SwapFree:      2091696 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5056 kB
Slab:            15552 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:21:50 (client local time) WITH STATUS 1 IN 121.466 SECONDS
stats: 25519 7 121.466 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 4613
Raw data (stat): 4613 (runsolver) R 4612 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968196523 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+9.99995 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 4613
Raw data (stat): 4613 (pb2sat-v2) R 4612 31399 31398 0 -1 0 25017 0 0 0 952 47 0 0 25 0 1 0 968196523 76234752 14107 4294967295 134512640 135730672 3221224576 3221097408 134546351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 18612 14107 301 301 0 18311 0
vsize: 74448
[startup+19.9995 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 4613
Raw data (stat): 4613 (pb2sat-v2) R 4612 31399 31398 0 -1 0 52055 0 0 0 1901 98 0 0 25 0 1 0 968196523 169529344 29940 4294967295 134512640 135730672 3221224576 3221097992 134549756 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 41389 29941 301 301 0 41088 0
vsize: 165556
[startup+29.9995 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 4613
Raw data (stat): 4613 (pb2sat-v2) R 4612 31399 31398 0 -1 0 80397 0 0 0 2850 149 0 0 25 0 1 0 968196523 245166080 48376 4294967295 134512640 135730672 3221224576 3221100144 134786278 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 59855 48376 301 301 0 59554 0
vsize: 239420
[startup+40.0002 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 4613
Raw data (stat): 4613 (pb2sat-v2) R 4612 31399 31398 0 -1 0 104752 0 0 0 3804 196 0 0 25 0 1 0 968196523 336486400 60252 4294967295 134512640 135730672 3221224576 3221102512 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 82150 60255 301 301 0 81849 0
vsize: 328600
[startup+50.0006 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 4613
Raw data (stat): 4613 (pb2sat-v2) R 4612 31399 31398 0 -1 0 123559 0 0 0 4769 230 0 0 25 0 1 0 968196523 364650496 78840 4294967295 134512640 135730672 3221224576 3221100192 134770685 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 89026 78840 301 301 0 88725 0
vsize: 356104
[startup+60.0007 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 4613
Raw data (stat): 4613 (pb2sat-v2) R 4612 31399 31398 0 -1 0 161335 0 0 0 5703 297 0 0 25 0 1 0 968196523 490598400 97029 4294967295 134512640 135730672 3221224576 3221102464 134786278 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 119775 97029 301 301 0 119474 0
vsize: 479100
[startup+70.0007 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 4613
Raw data (stat): 4613 (pb2sat-v2) R 4612 31399 31398 0 -1 0 195618 0 0 0 6630 370 0 0 25 0 1 0 968196523 591261696 106557 4294967295 134512640 135730672 3221224576 3221101672 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 144351 106558 301 301 0 144050 0
vsize: 577404
[startup+80.0007 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 4613
Raw data (stat): 4613 (pb2sat-v2) R 4612 31399 31398 0 -1 0 207496 0 0 0 7610 390 0 0 25 0 1 0 968196523 631984128 118249 4294967295 134512640 135730672 3221224576 3221108032 134786302 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154293 118250 301 301 0 153992 0
vsize: 617172
[startup+90.0007 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 4613
Raw data (stat): 4613 (pb2sat-v2) R 4612 31399 31398 0 -1 0 225776 0 0 0 8575 425 0 0 25 0 1 0 968196523 659128320 136316 4294967295 134512640 135730672 3221224576 3221110352 134786278 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160920 136316 301 301 0 160619 0
vsize: 643680
[startup+100.007 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 4613
Raw data (stat): 4613 (pb2sat-v2) R 4612 31399 31398 0 -1 0 244084 0 0 0 9541 460 0 0 25 0 1 0 968196523 686080000 154409 4294967295 134512640 135730672 3221224576 3221104760 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 167500 154409 301 301 0 167199 0
vsize: 670000
[startup+110.008 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 4613
Raw data (stat): 4613 (pb2sat-v2) R 4612 31399 31398 0 -1 0 258411 0 0 0 10514 488 0 0 25 0 1 0 968196523 757370880 168568 4294967295 134512640 135730672 3221224576 3221102476 135301642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 184905 168568 301 301 0 184604 0
vsize: 739620
[startup+120.008 s]
Raw data (loadavg): 0.99 0.95 0.91 2/54 4613
Raw data (stat): 4613 (pb2sat-v2) R 4612 31399 31398 0 -1 0 259795 0 0 0 11497 504 0 0 25 0 1 0 968196523 399196160 96958 4294967295 134512640 135730672 3221224576 3221222832 135282773 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97460 96958 301 301 0 97159 0
vsize: 389840
[startup+121.458 s]
Raw data (loadavg): 0.99 0.95 0.91 1/53 4613
Raw data (stat): 4613 (pb2sat-v2) R 4612 31399 31398 0 -1 0 259795 0 0 0 11497 504 0 0 25 0 1 0 968196523 399196160 96958 4294967295 134512640 135730672 3221224576 3221222832 135282773 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97460 96958 301 301 0 97159 0
vsize: 0

Child status: 1
Real time (s): 121.457
CPU time (s): 121.466
CPU user time (s): 116.213
CPU system time (s): 5.2522
CPU usage (%): 100.007
Max. virtual memory (Kb): 739620
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####