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).
    Note that some very long lines in this section may be truncated by your web browser !
  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

Namemps-v2-13-7/MIPLIB/miplib/normalized-mps-v2-13-7-p0291.opb
MD5SUM1d9168a9335e29df835d07b0bdf2adea
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 10447498
Optimality of the best value was proved YES
Number of terms in the objective function 289
Biggest coefficient in the objective function 80000000
Number of bits for the biggest coefficient in the objective function 27
Sum of the numbers in the objective function 686518451
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 80000000
Number of bits of the biggest number in a constraint 27
Biggest sum of numbers in a constraint 686518451
Number of bits of the biggest sum of numbers30
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark0.414935
Number of variables291
Total number of constraints543
Number of constraints which are clauses189
Number of constraints which are cardinality constraints (but not clauses)295
Number of constraints which are nor clauses,nor cardinality constraints59
Minimum length of a constraint1
Maximum length of a constraint53

Trace number 8418

Launcher Data

LAUNCH ON wulflinc2 THE 2005-09-20 16:30:54 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=5604 boxname=wulflinc2 idbench=916 idsolver=5 numberseed=0
MD5SUM SOLVER: 104a539e9cf344a86ca96d2c957e7d7f  /oldhome/oroussel/solvers/Pueblo
MD5SUM BENCH:  1d9168a9335e29df835d07b0bdf2adea  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-p0291.opb
REAL COMMAND:  Pueblo
IDLAUNCH: 5604
/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:        880736 kB
Buffers:         32820 kB
Cached:          95920 kB
SwapCached:       1004 kB
Active:          56140 kB
Inactive:        75240 kB
HighTotal:      131008 kB
HighFree:        33600 kB
LowTotal:       903652 kB
LowFree:        847136 kB
SwapTotal:     2097136 kB
SwapFree:      2095552 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5608 kB
Slab:            16736 kB
Committed_AS:    72496 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-20 16:30:55 (client local time) WITH STATUS 30 IN 0.414935 SECONDS
stats: 5604 0 0.414935 30

Solver Data

c Pueblo version 1.3 (July 2005)
c Developed @ University of Michigan, Ann Arbor, MI
c  by Hossein Sheini
c starting to Solve
c #variables read: 291 - #constraints read: 544
c optimum objective found = 10537888
c total time              : 0.4 s
s OPTIMUM FOUND
v -X0101_bit0 -X0102_bit0 -X0103_bit0 -X0104_bit0 -X0201_bit0 -X0202_bit0 -X0203_bit0 -X0204_bit0 -X0301_bit0 -X0302_bit0 -X0303_bit0 X0304_bit0 -X0401_bit0 -X0402_bit0 -X0403_bit0 -X0404_bit0 -X0501_bit0 -X0502_bit0 -X0503_bit0 -X0504_bit0 -X0601_bit0 -X0602_bit0 -X0603_bit0 -X0604_bit0 -X0701_bit0 -X0702_bit0 -X0703_bit0 -X0704_bit0 -X0801_bit0 -X0802_bit0 -X0803_bit0 -X0804_bit0 -X0901_bit0 -X0902_bit0 -X0903_bit0 -X0904_bit0 -X1001_bit0 -X1002_bit0 -X1003_bit0 -X1004_bit0 -X1101_bit0 -X1102_bit0 -X1103_bit0 -X1104_bit0 -X1201_bit0 -X1202_bit0 -X1203_bit0 -X1204_bit0 -X1301_bit0 -X1302_bit0 -X1303_bit0 -X1304_bit0 -X1401_bit0 -X1402_bit0 -X1403_bit0 -X1404_bit0 -X1501_bit0 -X1502_bit0 -X1503_bit0 -X1504_bit0 -X1601_bit0 -X1602_bit0 -X1603_bit0 -X1604_bit0 -X1701_bit0 -X1702_bit0 -X1703_bit0 -X1704_bit0 -X1801_bit0 -X1802_bit0 -X1803_bit0 -X1804_bit0 -X1901_bit0 -X1902_bit0 -X1903_bit0 -X1904_bit0 -X2001_bit0 -X2002_bit0 -X2003_bit0 -X2004_bit0 -X2101_bit0 -X2102_bit0 -X2103_bit0 -X2104_bit0 -X2105_bit0 -X2201_bit0 -X2202_bit0 -X2203_bit0 -X2204_bit0 -X2205_bit0 -X2301_bit0 X2302_bit0 -X2303_bit0 -X2304_bit0 -X2305_bit0 -X2401_bit0 -X2402_bit0 -X2403_bit0 -X2404_bit0 -X2405_bit0 -X2501_bit0 -X2502_bit0 -X2503_bit0 -X2504_bit0 -X2601_bit0 -X2603_bit0 -X2604_bit0 -X2701_bit0 -X2702_bit0 -X2703_bit0 -X2704_bit0 -X2801_bit0 -X2802_bit0 -X2803_bit0 -X2804_bit0 -X2901_bit0 -X2902_bit0 -X2903_bit0 -X2904_bit0 -X3001_bit0 -X3002_bit0 -X3003_bit0 -X3004_bit0 -X3101_bit0 -X3102_bit0 -X3103_bit0 -X3104_bit0 -X3201_bit0 -X3202_bit0 -X3203_bit0 -X3204_bit0 -X3301_bit0 -X3302_bit0 -X3303_bit0 -X3304_bit0 -X3401_bit0 -X3402_bit0 -X3403_bit0 -X3404_bit0 -X3501_bit0 -X3502_bit0 -X3503_bit0 -X3504_bit0 -X3601_bit0 -X3602_bit0 -X3603_bit0 -X3604_bit0 -X3701_bit0 -X3702_bit0 -X3703_bit0 -X3704_bit0 -X3801_bit0 -X3802_bit0 -X3803_bit0 -X3804_bit0 -X3901_bit0 -X3902_bit0 -X3903_bit0 -X3904_bit0 -X4001_bit0 -X4002_bit0 -X4003_bit0 -X4004_bit0 -X4101_bit0 -X4102_bit0 -X4103_bit0 -X4104_bit0 -X4201_bit0 -X4202_bit0 -X4203_bit0 -X4204_bit0 -X4301_bit0 -X4302_bit0 -X4303_bit0 -X4304_bit0 -X4401_bit0 -X4402_bit0 -X4403_bit0 -X4404_bit0 -X4501_bit0 -X4502_bit0 -X4503_bit0 -X4504_bit0 -X4505_bit0 -X4601_bit0 -X4602_bit0 -X4603_bit0 -X4604_bit0 -X4605_bit0 -X4701_bit0 -X4702_bit0 -X4703_bit0 -X4704_bit0 -X4705_bit0 -X4801_bit0 -X4802_bit0 -X4803_bit0 -X4804_bit0 -X4805_bit0 -X4901_bit0 -X4902_bit0 -X4903_bit0 X4904_bit0 X4905_bit0 -X5001_bit0 -X5002_bit0 -X5003_bit0 -X5004_bit0 -X5005_bit0 -X5101_bit0 X5102_bit0 -X5103_bit0 X5104_bit0 X5105_bit0 -X5201_bit0 -X5202_bit0 -X5203_bit0 -X5204_bit0 -X5205_bit0 -X0001AN_bit0 -X0102AN_bit0 -X0202AN_bit0 -X0302AN_bit0 -X0003AN_bit0 -X0005AN_bit0 -X0006AN_bit0 X0007AN_bit0 X0010AN_bit0 -X0111AN_bit0 -X0211AN_bit0 -X0311AN_bit0 -X0012AN_bit0 -X0113AN_bit0 X0213AN_bit0 -X0114AN_bit0 -X0214AN_bit0 -X0115AN_bit0 -X0215AN_bit0 -X0315AN_bit0 -X0016AN_bit0 -X0117AN_bit0 -X0217AN_bit0 -X0317AN_bit0 -X0019AN_bit0 -X0020AN_bit0 -X0121AN_bit0 -X0221AN_bit0 X0321AN_bit0 -X0122AN_bit0 -X0222AN_bit0 -X0322AN_bit0 -X0023AN_bit0 -X0024AN_bit0 -X0025AN_bit0 -X0026AN_bit0 -X0028AN_bit0 -X0029AN_bit0 -Y0001S_bit0 -Y0102S_bit0 -Y0202S_bit0 Y0302S_bit0 -Y0003S_bit0 Y0004S_bit0 Y0005S_bit0 -Y0001AN_bit0 -Y0102AN_bit0 -Y0202AN_bit0 -Y0302AN_bit0 -Y0003AN_bit0 -Y0005AN_bit0 Y0007AN_bit0 -Y0111AN_bit0 -Y0211AN_bit0 -Y0311AN_bit0 -Y0012AN_bit0 -Y0115AN_bit0 -Y0215AN_bit0 -Y0315AN_bit0 -Y0016AN_bit0 -Y0117AN_bit0 -Y0217AN_bit0 -Y0317AN_bit0 -Y0018AN_bit0 -Y0019AN_bit0 -Y0122AN_bit0 -Y0222AN_bit0 -Y0322AN_bit0 -Y0023AN_bit0 -Y0024AN_bit0 -X2602_bit0 -X0018AN_bit0

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/13946/stat): 13946 (Pueblo) R 13945 13946 6872 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1801778119 167936 3 4294967295 134512640 134578447 3221224624 3221224624 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/13946/statm): 41 3 40 18 0 23 0
[pid=13946] vsize: 164
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libstdc++.so.5
open syscall for file tls/i686/libstdc++.so.5
open syscall for file tls/mmx/libstdc++.so.5
open syscall for file tls/libstdc++.so.5
open syscall for file i686/mmx/libstdc++.so.5
open syscall for file i686/libstdc++.so.5
open syscall for file mmx/libstdc++.so.5
open syscall for file libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/i686/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/tls/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/i686/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/i686/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/mmx/libstdc++.so.5
open syscall for file /oldhome/oroussel/lib/libstdc++.so.5
open syscall for file /etc/ld.so.cache
open syscall for file /usr/lib/libstdc++.so.5
open syscall for file tls/i686/mmx/libm.so.6
open syscall for file tls/i686/libm.so.6
open syscall for file tls/mmx/libm.so.6
open syscall for file tls/libm.so.6
open syscall for file i686/mmx/libm.so.6
open syscall for file i686/libm.so.6
open syscall for file mmx/libm.so.6
open syscall for file libm.so.6
open syscall for file /oldhome/oroussel/lib/libm.so.6
open syscall for file /lib/tls/libm.so.6
open syscall for file tls/i686/mmx/libgcc_s.so.1
open syscall for file tls/i686/libgcc_s.so.1
open syscall for file tls/mmx/libgcc_s.so.1
open syscall for file tls/libgcc_s.so.1
open syscall for file i686/mmx/libgcc_s.so.1
open syscall for file i686/libgcc_s.so.1
open syscall for file mmx/libgcc_s.so.1
open syscall for file libgcc_s.so.1
open syscall for file /oldhome/oroussel/lib/libgcc_s.so.1
open syscall for file /lib/libgcc_s.so.1
open syscall for file tls/i686/mmx/libc.so.6
open syscall for file tls/i686/libc.so.6
open syscall for file tls/mmx/libc.so.6
open syscall for file tls/libc.so.6
open syscall for file i686/mmx/libc.so.6
open syscall for file i686/libc.so.6
open syscall for file mmx/libc.so.6
open syscall for file libc.so.6
open syscall for file /oldhome/oroussel/lib/libc.so.6
open syscall for file /lib/tls/libc.so.6
One traced child (pid=13946) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 0.562596
CPU time (s): 0.414935
CPU user time (s): 0.328949
CPU system time (s): 0.085986
CPU usage (%): 73.7536
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

Verifier:	OK	10447498