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-tuff.opb
MD5SUM1a92e09c7ec9849a6357a8d28097331d
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 90
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 3221225469
Number of bits of the sum of numbers in the objective function 32
Biggest number in a constraint 6170044790734848
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 1104744513968841438
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 benchmark0.486925
Number of variables17153
Total number of constraints320
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 constraints320
Minimum length of a constraint11
Maximum length of a constraint3360

Trace number 42372 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-16 06:11:25 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25590 boxname=wulflinc2 idbench=890 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1a92e09c7ec9849a6357a8d28097331d  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-tuff.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-tuff.opb
IDLAUNCH: 25590
/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:        705612 kB
Buffers:         34784 kB
Cached:         268264 kB
SwapCached:       4448 kB
Active:          65044 kB
Inactive:       243080 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        705360 kB
SwapTotal:     2097136 kB
SwapFree:      2091696 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5056 kB
Slab:            15156 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 06:13:17 (client local time) WITH STATUS 1 IN 111.748 SECONDS
stats: 25590 7 111.748 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 0.91 1/54 5972
Raw data (stat): 5972 (runsolver) R 5971 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968506180 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+10.0006 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 5972
Raw data (stat): 5972 (pb2sat-v2) R 5971 31399 31398 0 -1 0 28112 0 0 0 942 57 0 0 25 0 1 0 968506180 85905408 16983 4294967295 134512640 135730672 3221224576 3221158784 134608047 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 20973 16983 301 301 0 20672 0
vsize: 83892
[startup+20.0013 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 5972
Raw data (stat): 5972 (pb2sat-v2) R 5971 31399 31398 0 -1 0 53125 0 0 0 1890 109 0 0 25 0 1 0 968506180 158814208 30782 4294967295 134512640 135730672 3221224576 3221152528 134770140 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 38773 30782 301 301 0 38472 0
vsize: 155092
[startup+30.0016 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 5972
Raw data (stat): 5972 (pb2sat-v2) R 5971 31399 31398 0 -1 0 90284 0 0 0 2817 181 0 0 25 0 1 0 968506180 271712256 46259 4294967295 134512640 135730672 3221224576 3221160000 134786865 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 66336 46259 301 301 0 66035 0
vsize: 265344
[startup+40.0019 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 5972
Raw data (stat): 5972 (pb2sat-v2) R 5971 31399 31398 0 -1 0 105932 0 0 0 3787 212 0 0 25 0 1 0 968506180 320954368 61683 4294967295 134512640 135730672 3221224576 3221161068 134607993 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 78358 61683 301 301 0 78057 0
vsize: 313432
[startup+50.0027 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 5972
Raw data (stat): 5972 (pb2sat-v2) R 5971 31399 31398 0 -1 0 133425 0 0 0 4741 258 0 0 25 0 1 0 968506180 505110528 88628 4294967295 134512640 135730672 3221224576 3221159216 134775271 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 123318 88628 301 301 0 123017 0
vsize: 493272
[startup+60.0039 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 5972
Raw data (stat): 5972 (pb2sat-v2) R 5971 31399 31398 0 -1 0 183719 0 0 0 5639 360 0 0 25 0 1 0 968506180 563986432 96133 4294967295 134512640 135730672 3221224576 3221164224 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 137692 96133 301 301 0 137391 0
vsize: 550768
[startup+70.0042 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 5972
Raw data (stat): 5972 (pb2sat-v2) R 5971 31399 31398 0 -1 0 194429 0 0 0 6619 380 0 0 25 0 1 0 968506180 597540864 106643 4294967295 134512640 135730672 3221224576 3221166836 134788403 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145884 106643 301 301 0 145583 0
vsize: 583536
[startup+80.013 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 5972
Raw data (stat): 5972 (pb2sat-v2) R 5971 31399 31398 0 -1 0 213181 0 0 0 7585 415 0 0 25 0 1 0 968506180 623554560 125163 4294967295 134512640 135730672 3221224576 3221165084 134769936 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 152235 125163 301 301 0 151934 0
vsize: 608940
[startup+90.0128 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 5972
Raw data (stat): 5972 (pb2sat-v2) R 5971 31399 31398 0 -1 0 232545 0 0 0 8549 452 0 0 25 0 1 0 968506180 652222464 144295 4294967295 134512640 135730672 3221224576 3221174876 134607984 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 159234 144295 301 301 0 158933 0
vsize: 636936
[startup+100.013 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 5972
Raw data (stat): 5972 (pb2sat-v2) R 5971 31399 31398 0 -1 0 248137 0 0 0 9521 480 0 0 25 0 1 0 968506180 725667840 159701 4294967295 134512640 135730672 3221224576 3221178052 135291157 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 177165 159701 301 301 0 176864 0
vsize: 708660
[startup+110.013 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 5972
Raw data (stat): 5972 (pb2sat-v2) R 5971 31399 31398 0 -1 0 253201 0 0 0 10498 502 0 0 25 0 1 0 968506180 381861888 92772 4294967295 134512640 135730672 3221224576 3221222928 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 93228 92772 301 301 0 92927 0
vsize: 372912
[startup+111.749 s]
Raw data (loadavg): 0.98 0.97 0.91 1/53 5972
Raw data (stat): 5972 (pb2sat-v2) R 5971 31399 31398 0 -1 0 253201 0 0 0 10498 502 0 0 25 0 1 0 968506180 381861888 92772 4294967295 134512640 135730672 3221224576 3221222928 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 93228 92772 301 301 0 92927 0
vsize: 0

Child status: 1
Real time (s): 111.749
CPU time (s): 111.748
CPU user time (s): 106.522
CPU system time (s): 5.22621
CPU usage (%): 99.9995
Max. virtual memory (Kb): 708660
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####