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/MIPLIB/miplib3/normalized-mps-v2-20-10-enigma.opb
MD5SUM438e2455c0b7b4efdea6a7e48ef2555a
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 benchmark0.417936
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 41170 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-09 07:34:04 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=29241 boxname=wulflinc3 idbench=1025 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  438e2455c0b7b4efdea6a7e48ef2555a  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-enigma.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-enigma.opb
IDLAUNCH: 29241
/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:        888108 kB
Buffers:         15140 kB
Cached:         110992 kB
SwapCached:        756 kB
Active:          28716 kB
Inactive:        99456 kB
HighTotal:      131008 kB
HighFree:        57316 kB
LowTotal:       903652 kB
LowFree:        830792 kB
SwapTotal:     2097136 kB
SwapFree:      2095332 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5036 kB
Slab:            12584 kB
Committed_AS:    71796 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-09 07:35:11 (client local time) WITH STATUS 30 IN 66.9968 SECONDS
stats: 29241 0 66.9968 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 0.123 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 @ 66.179
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: 66.971 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): 0.69 0.89 0.89 2/54 5564
Raw data (stat): 5564 (runsolver) R 5563 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 908501465 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+10.0015 s]
Raw data (loadavg): 0.74 0.89 0.89 2/54 5564
Raw data (stat): 5564 (bsolo_lpr_cuts-) R 5563 20224 20223 0 -1 0 6463 0 0 0 971 26 0 0 25 0 1 0 908501465 13393920 2582 4294967295 134512640 134716908 3221224560 3221223232 134652564 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 3270 2582 1111 63 0 3207 0
vsize: 13080
[startup+20.0019 s]
Raw data (loadavg): 0.78 0.89 0.90 2/54 5564
Raw data (stat): 5564 (bsolo_lpr_cuts-) R 5563 20224 20223 0 -1 0 13550 0 0 0 1945 52 0 0 25 0 1 0 908501465 18612224 3860 4294967295 134512640 134716908 3221224560 3221223248 134543674 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 4544 3860 1111 63 0 4481 0
vsize: 18176
[startup+30.0027 s]
Raw data (loadavg): 0.81 0.89 0.90 2/54 5564
Raw data (stat): 5564 (bsolo_lpr_cuts-) R 5563 20224 20223 0 -1 0 22714 0 0 0 2915 82 0 0 25 0 1 0 908501465 22392832 4783 4294967295 134512640 134716908 3221224560 3221222740 1077782939 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 5467 4783 1111 63 0 5404 0
vsize: 21868
[startup+40.003 s]
Raw data (loadavg): 0.84 0.90 0.90 2/54 5564
Raw data (stat): 5564 (bsolo_lpr_cuts-) R 5563 20224 20223 0 -1 0 36929 0 0 0 3875 122 0 0 25 0 1 0 908501465 26308608 5700 4294967295 134512640 134716908 3221224560 3221222488 1077377254 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 6423 5700 1111 63 0 6360 0
vsize: 25692
[startup+50.0044 s]
Raw data (loadavg): 0.86 0.90 0.90 2/54 5564
Raw data (stat): 5564 (bsolo_lpr_cuts-) R 5563 20224 20223 0 -1 0 52480 0 0 0 4837 161 0 0 25 0 1 0 908501465 30449664 6720 4294967295 134512640 134716908 3221224560 3221222304 1075646712 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 7434 6720 1111 63 0 7371 0
vsize: 29736
[startup+60.0042 s]
Raw data (loadavg): 0.88 0.90 0.90 2/54 5564
Raw data (stat): 5564 (bsolo_lpr_cuts-) R 5563 20224 20223 0 -1 0 66559 0 0 0 5801 198 0 0 25 0 1 0 908501465 33812480 7540 4294967295 134512640 134716908 3221224560 3221222556 1074206256 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8255 7540 1111 63 0 8192 0
vsize: 33020
[startup+67.0108 s]
Raw data (loadavg): 0.89 0.90 0.90 1/53 5564
Raw data (stat): 5564 (bsolo_lpr_cuts-) R 5563 20224 20223 0 -1 0 66559 0 0 0 5801 198 0 0 25 0 1 0 908501465 33812480 7540 4294967295 134512640 134716908 3221224560 3221222556 1074206256 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8255 7540 1111 63 0 8192 0
vsize: 0

Child status: 30
Real time (s): 67.0105
CPU time (s): 66.9968
CPU user time (s): 64.8461
CPU system time (s): 2.15067
CPU usage (%): 99.9796
Max. virtual memory (Kb): 33020
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	0
#### END VERIFIER DATA ####