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-v2-13-7/MIPLIB/miplib/normalized-mps-v2-13-7-enigma.opb
MD5SUM69bc407892007f468f206122d0d17aba
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 9
Biggest coefficient in the objective function 9
Number of bits for the biggest coefficient in the objective function 4
Sum of the numbers in the objective function 45
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 900207
Number of bits of the biggest number in a constraint 20
Biggest sum of numbers in a constraint 9508275
Number of bits of the biggest sum of numbers24
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.409937
Number of variables100
Total number of constraints121
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)120
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint1
Maximum length of a constraint90

Trace number 41438 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-09 12:30:39 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=29509 boxname=wulflinc4 idbench=1293 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  69bc407892007f468f206122d0d17aba  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-enigma.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-enigma.opb
IDLAUNCH: 29509
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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		: 451.169
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:        908540 kB
Buffers:          1416 kB
Cached:         104524 kB
SwapCached:        888 kB
Active:          25004 kB
Inactive:        82940 kB
HighTotal:      131008 kB
HighFree:        40488 kB
LowTotal:       903652 kB
LowFree:        868052 kB
SwapTotal:     2097136 kB
SwapFree:      2095212 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4912 kB
Slab:            12360 kB
Committed_AS:    71788 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-09 12:31:48 (client local time) WITH STATUS 30 IN 67.8727 SECONDS
stats: 29509 0 67.8727 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 100 variables and 42 constraints.
c After prepocess the problem consists of 100 variables and 72 constraints.
c preprocess terminated 0.129 s
c Initial Lower Bound: 0
c Lower Bound Elapsed time: 0.02
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 0 @ 67.017
s OPTIMUM FOUND
v -A1_bit0 -A2_bit0 -A3_bit0 -A4_bit0 -A5_bit0 -A6_bit0 -A7_bit0 -A8_bit0 -A9_bit0 -B1_bit0 -B2_bit0 -B3_bit0 -B4_bit0 -B5_bit0 -B6_bit0 -B7_bit0 B8_bit0 -B9_bit0 -C1_bit0 -C2_bit0 -C3_bit0 -C4_bit0 C5_bit0 -C6_bit0 -C7_bit0 -C8_bit0 -C9_bit0 -D1_bit0 -D2_bit0 -D3_bit0 -D4_bit0 -D5_bit0 D6_bit0 -D7_bit0 -D8_bit0 -D9_bit0 -E1_bit0 -E2_bit0 -E3_bit0 E4_bit0 -E5_bit0 -E6_bit0 -E7_bit0 -E8_bit0 -E9_bit0 -F1_bit0 -F2_bit0 -F3_bit0 -F4_bit0 -F5_bit0 -F6_bit0 -F7_bit0 -F8_bit0 F9_bit0 -G1_bit0 G2_bit0 -G3_bit0 -G4_bit0 -G5_bit0 -G6_bit0 -G7_bit0 -G8_bit0 -G9_bit0 -H1_bit0 -H2_bit0 -H3_bit0 -H4_bit0 -H5_bit0 -H6_bit0 H7_bit0 -H8_bit0 -H9_bit0 I1_bit0 -I2_bit0 -I3_bit0 -I4_bit0 -I5_bit0 -I6_bit0 -I7_bit0 -I8_bit0 -I9_bit0 -L1_bit0 -L2_bit0 L3_bit0 -L4_bit0 -L5_bit0 -L6_bit0 -L7_bit0 -L8_bit0 -L9_bit0 A0_bit0 -B0_bit0 -C0_bit0 -D0_bit0 -E0_bit0 -F0_bit0 -G0_bit0 -H0_bit0 -I0_bit0 -L0_bit0 
c Exit Code: 30
c Total time: 67.849 s
#### 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): 0.90 0.94 0.90 1/54 16059
Raw data (stat): 16059 (runsolver) R 16058 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 910280247 884736 94 4294967295 134512640 135332820 3221224448 3221219628 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+10.0007 s]
Raw data (loadavg): 0.91 0.95 0.91 2/54 16059
Raw data (stat): 16059 (bsolo_lpr_cuts-) R 16058 21152 21151 0 -1 0 6462 0 0 0 971 26 0 0 25 0 1 0 910280247 13406208 2582 4294967295 134512640 134716908 3221224560 3221221804 1074206144 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 3273 2582 1111 63 0 3210 0
vsize: 13092
[startup+20.0011 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 16059
Raw data (stat): 16059 (bsolo_lpr_cuts-) R 16058 21152 21151 0 -1 0 13393 0 0 0 1945 52 0 0 25 0 1 0 910280247 18604032 3845 4294967295 134512640 134716908 3221224560 3221222508 1074146096 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 4542 3845 1111 63 0 4479 0
vsize: 18168
[startup+30.0019 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 16059
Raw data (stat): 16059 (bsolo_lpr_cuts-) R 16058 21152 21151 0 -1 0 22065 0 0 0 2918 79 0 0 25 0 1 0 910280247 22351872 4739 4294967295 134512640 134716908 3221224560 3221222840 1073986673 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 5457 4739 1111 63 0 5394 0
vsize: 21828
[startup+40.0022 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 16059
Raw data (stat): 16059 (bsolo_lpr_cuts-) R 16058 21152 21151 0 -1 0 36018 0 0 0 3881 117 0 0 25 0 1 0 910280247 26062848 5637 4294967295 134512640 134716908 3221224560 3221222668 1074143396 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 6363 5637 1111 63 0 6300 0
vsize: 25452
[startup+50.0026 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 16059
Raw data (stat): 16059 (bsolo_lpr_cuts-) R 16058 21152 21151 0 -1 0 51102 0 0 0 4841 157 0 0 25 0 1 0 910280247 29863936 6608 4294967295 134512640 134716908 3221224560 3221222432 1074050884 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 7291 6608 1111 63 0 7228 0
vsize: 29164
[startup+60.003 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 16059
Raw data (stat): 16059 (bsolo_lpr_cuts-) R 16058 21152 21151 0 -1 0 65749 0 0 0 5802 196 0 0 25 0 1 0 910280247 33599488 7520 4294967295 134512640 134716908 3221224560 3221222720 1074050818 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8203 7520 1111 63 0 8140 0
vsize: 32812
[startup+67.8914 s]
Raw data (loadavg): 0.96 0.95 0.91 1/53 16059
Raw data (stat): 16059 (bsolo_lpr_cuts-) R 16058 21152 21151 0 -1 0 65749 0 0 0 5802 196 0 0 25 0 1 0 910280247 33599488 7520 4294967295 134512640 134716908 3221224560 3221222720 1074050818 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8203 7520 1111 63 0 8140 0
vsize: 0

Child status: 30
Real time (s): 67.8908
CPU time (s): 67.8727
CPU user time (s): 65.727
CPU system time (s): 2.14567
CPU usage (%): 99.9734
Max. virtual memory (Kb): 32812
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	0
#### END VERIFIER DATA ####