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-perold.opb
MD5SUMe16309ade16cb14d2a4f972d0ed40677
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 210
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 7516192761
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint -5768736714256285696
Number of bits of the biggest number in a constraint 64
Biggest sum of numbers in a constraint 84317276328546238464
Number of bits of the biggest sum of numbers67
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.15882
Number of variables36286
Total number of constraints891
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 constraints891
Minimum length of a constraint10
Maximum length of a constraint991

Trace number 42331 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 05:42:17 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25549 boxname=wulflinc3 idbench=849 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  e16309ade16cb14d2a4f972d0ed40677  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-perold.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-perold.opb
IDLAUNCH: 25549
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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:        765328 kB
Buffers:         34272 kB
Cached:         212768 kB
SwapCached:        820 kB
Active:          32740 kB
Inactive:       216400 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        765076 kB
SwapTotal:     2097136 kB
SwapFree:      2095340 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14384 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:44:00 (client local time) WITH STATUS 1 IN 102.229 SECONDS
stats: 25549 7 102.229 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): 0.92 0.95 0.93 1/54 16829
Raw data (stat): 16829 (runsolver) R 16828 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968318316 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+10.0014 s]
Raw data (loadavg): 0.93 0.96 0.93 2/54 16829
Raw data (stat): 16829 (pb2sat-v2) R 16828 20224 20223 0 -1 0 28590 0 0 0 939 59 0 0 25 0 1 0 968318316 89313280 17488 4294967295 134512640 135730672 3221224576 3221089468 135291230 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21805 17488 301 301 0 21504 0
vsize: 87220
[startup+20.0018 s]
Raw data (loadavg): 0.94 0.96 0.93 2/54 16829
Raw data (stat): 16829 (pb2sat-v2) R 16828 20224 20223 0 -1 0 57136 0 0 0 1881 117 0 0 25 0 1 0 968318316 176459776 34545 4294967295 134512640 135730672 3221224576 3221092800 134546351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43081 34545 301 301 0 42780 0
vsize: 172324
[startup+30.0016 s]
Raw data (loadavg): 0.95 0.96 0.93 2/54 16829
Raw data (stat): 16829 (pb2sat-v2) R 16828 20224 20223 0 -1 0 83353 0 0 0 2831 168 0 0 25 0 1 0 968318316 238718976 50329 4294967295 134512640 135730672 3221224576 3221090896 134786640 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 58281 50329 301 301 0 57980 0
vsize: 233124
[startup+40.0029 s]
Raw data (loadavg): 0.96 0.96 0.93 2/54 16829
Raw data (stat): 16829 (pb2sat-v2) R 16828 20224 20223 0 -1 0 113119 0 0 0 3770 229 0 0 25 0 1 0 968318316 349110272 67578 4294967295 134512640 135730672 3221224576 3221090444 134607996 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85232 67578 301 301 0 84931 0
vsize: 340928
[startup+50.0033 s]
Raw data (loadavg): 0.96 0.96 0.93 2/54 16829
Raw data (stat): 16829 (pb2sat-v2) R 16828 20224 20223 0 -1 0 152932 0 0 0 4696 303 0 0 25 0 1 0 968318316 476839936 86808 4294967295 134512640 135730672 3221224576 3221092968 135284366 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 116416 86808 301 301 0 116115 0
vsize: 465664
[startup+60.0046 s]
Raw data (loadavg): 0.97 0.96 0.93 2/54 16829
Raw data (stat): 16829 (pb2sat-v2) R 16828 20224 20223 0 -1 0 165634 0 0 0 5671 328 0 0 25 0 1 0 968318316 476839936 99248 4294967295 134512640 135730672 3221224576 3221090856 134775037 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 116416 99248 301 301 0 116115 0
vsize: 465664
[startup+70.0054 s]
Raw data (loadavg): 0.97 0.96 0.93 2/54 16829
Raw data (stat): 16829 (pb2sat-v2) R 16828 20224 20223 0 -1 0 206066 0 0 0 6581 419 0 0 25 0 1 0 968318316 598454272 114883 4294967295 134512640 135730672 3221224576 3221090908 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 146107 114883 301 301 0 145806 0
vsize: 584428
[startup+80.0059 s]
Raw data (loadavg): 0.98 0.96 0.93 2/54 16829
Raw data (stat): 16829 (pb2sat-v2) R 16828 20224 20223 0 -1 0 222968 0 0 0 7545 455 0 0 25 0 1 0 968318316 657690624 131567 4294967295 134512640 135730672 3221224576 3221091932 135291064 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 160569 131567 301 301 0 160268 0
vsize: 642276
[startup+90.0057 s]
Raw data (loadavg): 0.98 0.96 0.93 2/54 16829
Raw data (stat): 16829 (pb2sat-v2) R 16828 20224 20223 0 -1 0 242531 0 0 0 8502 498 0 0 25 0 1 0 968318316 688250880 150879 4294967295 134512640 135730672 3221224576 3221092320 135282243 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 168030 150879 301 301 0 167729 0
vsize: 672120
[startup+100.006 s]
Raw data (loadavg): 0.98 0.96 0.93 2/54 16829
Raw data (stat): 16829 (pb2sat-v2) R 16828 20224 20223 0 -1 0 246639 0 0 0 9481 519 0 0 25 0 1 0 968318316 386408448 93248 4294967295 134512640 135730672 3221224576 3221222764 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 94338 93248 301 301 0 94037 0
vsize: 377352
[startup+102.229 s]
Raw data (loadavg): 0.98 0.96 0.93 1/53 16829
Raw data (stat): 16829 (pb2sat-v2) R 16828 20224 20223 0 -1 0 246639 0 0 0 9481 519 0 0 25 0 1 0 968318316 386408448 93248 4294967295 134512640 135730672 3221224576 3221222764 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 94338 93248 301 301 0 94037 0
vsize: 0

Child status: 1
Real time (s): 102.229
CPU time (s): 102.229
CPU user time (s): 96.8333
CPU system time (s): 5.39618
CPU usage (%): 100.001
Max. virtual memory (Kb): 672120
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####