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/miplib3/normalized-mps-v2-13-7-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 benchmark0.415935
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 41556 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-09 15:51:13 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=29625 boxname=wulflinc6 idbench=1409 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  438e2455c0b7b4efdea6a7e48ef2555a  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-enigma.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-enigma.opb
IDLAUNCH: 29625
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        720900 kB
Buffers:         23740 kB
Cached:         269384 kB
SwapCached:        908 kB
Active:          27896 kB
Inactive:       267204 kB
HighTotal:      131008 kB
HighFree:        42756 kB
LowTotal:       903652 kB
LowFree:        678144 kB
SwapTotal:     2097136 kB
SwapFree:      2095216 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5000 kB
Slab:            13068 kB
Committed_AS:    63736 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-09 15:52:20 (client local time) WITH STATUS 30 IN 66.6299 SECONDS
stats: 29625 0 66.6299 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 0.131 s
c Initial Lower Bound: 0
c Lower Bound Elapsed time: 0.021
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 0 @ 65.809
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: 66.61 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): 0.81 0.93 0.90 2/54 14199
Raw data (stat): 14199 (runsolver) R 14198 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 911492519 884736 94 4294967295 134512640 135332820 3221224448 3221219628 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+10.0007 s]
Raw data (loadavg): 0.84 0.93 0.90 2/54 14199
Raw data (stat): 14199 (bsolo_lpr_cuts-) R 14198 25568 25567 0 -1 0 6492 0 0 0 976 21 0 0 25 0 1 0 911492519 13553664 2611 4294967295 134512640 134716908 3221224560 3221223020 1077781665 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 3309 2611 1111 63 0 3246 0
vsize: 13236
[startup+20.0012 s]
Raw data (loadavg): 0.87 0.93 0.90 2/54 14199
Raw data (stat): 14199 (bsolo_lpr_cuts-) R 14198 25568 25567 0 -1 0 13589 0 0 0 1950 48 0 0 25 0 1 0 911492519 18829312 3853 4294967295 134512640 134716908 3221224560 3221221452 1077386340 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 4597 3853 1111 63 0 4534 0
vsize: 18388
[startup+30.002 s]
Raw data (loadavg): 0.89 0.93 0.90 2/54 14199
Raw data (stat): 14199 (bsolo_lpr_cuts-) R 14198 25568 25567 0 -1 0 22946 0 0 0 2923 75 0 0 25 0 1 0 911492519 22474752 4803 4294967295 134512640 134716908 3221224560 3221221920 1075082344 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 5555 4807 1111 63 0 5492 0
vsize: 21948
[startup+40.0022 s]
Raw data (loadavg): 0.90 0.93 0.90 2/54 14199
Raw data (stat): 14199 (bsolo_lpr_cuts-) R 14198 25568 25567 0 -1 0 37261 0 0 0 3881 117 0 0 25 0 1 0 911492519 26243072 5722 4294967295 134512640 134716908 3221224560 3221222304 1075640204 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 6407 5722 1111 63 0 6344 0
vsize: 25628
[startup+50.0026 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 14199
Raw data (stat): 14199 (bsolo_lpr_cuts-) R 14198 25568 25567 0 -1 0 53040 0 0 0 4842 157 0 0 25 0 1 0 911492519 30777344 6744 4294967295 134512640 134716908 3221224560 3221221548 1077404742 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 7514 6748 1111 63 0 7451 0
vsize: 30056
[startup+60.0024 s]
Raw data (loadavg): 0.93 0.94 0.90 2/54 14199
Raw data (stat): 14199 (bsolo_lpr_cuts-) R 14198 25568 25567 0 -1 0 67070 0 0 0 5808 191 0 0 25 0 1 0 911492519 33742848 7555 4294967295 134512640 134716908 3221224560 3221222896 1074153466 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8238 7555 1111 63 0 8175 0
vsize: 32952
[startup+66.6323 s]
Raw data (loadavg): 0.93 0.94 0.91 1/53 14199
Raw data (stat): 14199 (bsolo_lpr_cuts-) R 14198 25568 25567 0 -1 0 67070 0 0 0 5808 191 0 0 25 0 1 0 911492519 33742848 7555 4294967295 134512640 134716908 3221224560 3221222896 1074153466 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8238 7555 1111 63 0 8175 0
vsize: 0

Child status: 30
Real time (s): 66.6317
CPU time (s): 66.6299
CPU user time (s): 64.5722
CPU system time (s): 2.05769
CPU usage (%): 99.9973
Max. virtual memory (Kb): 32952
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	0
#### END VERIFIER DATA ####