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/plato.asu.edu/pub/fctp/normalized-mps-v2-13-7-bk4x3.opb
MD5SUMc2339539ffa69702e62053614fe34ce1
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 44800
Optimality of the best value was proved YES
Number of terms in the objective function 252
Biggest coefficient in the objective function 2621440
Number of bits for the biggest coefficient in the objective function 22
Sum of the numbers in the objective function 35682270
Number of bits of the sum of numbers in the objective function 26
Biggest number in a constraint 2621440
Number of bits of the biggest number in a constraint 22
Biggest sum of numbers in a constraint 35682270
Number of bits of the biggest sum of numbers26
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark15.3857
Number of variables252
Total number of constraints19
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 constraints19
Minimum length of a constraint21
Maximum length of a constraint80

Trace number 6684

Launcher Data

LAUNCH ON wulflinc5 THE 2005-09-20 09:03:57 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=4577 boxname=wulflinc5 idbench=1061 idsolver=4 numberseed=0
MD5SUM SOLVER: 21c3ffd7205c96d5f0784fd273b92938  /oldhome/oroussel/solvers/PBS4
MD5SUM BENCH:  c2339539ffa69702e62053614fe34ce1  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-bk4x3.opb
REAL COMMAND:  PBS4 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-bk4x3.opb
IDLAUNCH: 4577
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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		: 451.007
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:        891144 kB
Buffers:         26584 kB
Cached:          92624 kB
SwapCached:        744 kB
Active:          33860 kB
Inactive:        88004 kB
HighTotal:      131008 kB
HighFree:        34244 kB
LowTotal:       903652 kB
LowFree:        856900 kB
SwapTotal:     2097136 kB
SwapFree:      2095884 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5764 kB
Slab:            16024 kB
Committed_AS:    64300 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-20 09:04:28 (client local time) WITH STATUS 30 IN 30.5923 SECONDS
stats: 4577 0 30.5923 30

Solver Data

c PBS v4 by Bashar Al-Rawi & Fadi Aloul
c Solving /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-bk4x3.opb ......
c The optimum solution is:44800
s OPTIMUM FOUND
v -X0_bit0 -X0_bit1 -X0_bit10 -X0_bit11 -X0_bit12 -X0_bit2 -X0_bit3 -X0_bit4 -X0_bit5 -X0_bit6 -X0_bit7 -X0_bit8 -X0_bit9 -X0_bit_1 -X0_bit_2 -X0_bit_3 -X0_bit_4 -X0_bit_5 -X0_bit_6 -X0_bit_7 -X10_bit0 -X10_bit1 -X10_bit10 -X10_bit11 -X10_bit12 -X10_bit2 -X10_bit3 -X10_bit4 -X10_bit5 -X10_bit6 -X10_bit7 -X10_bit8 -X10_bit9 -X10_bit_1 -X10_bit_2 -X10_bit_3 -X10_bit_4 -X10_bit_5 -X10_bit_6 -X10_bit_7 -X11_bit0 -X11_bit1 -X11_bit10 -X11_bit11 -X11_bit12 X11_bit2 -X11_bit3 X11_bit4 -X11_bit5 -X11_bit6 -X11_bit7 -X11_bit8 -X11_bit9 -X11_bit_1 -X11_bit_2 -X11_bit_3 -X11_bit_4 -X11_bit_5 -X11_bit_6 -X11_bit_7 -X1_bit0 -X1_bit1 -X1_bit10 -X1_bit11 -X1_bit12 -X1_bit2 -X1_bit3 -X1_bit4 -X1_bit5 -X1_bit6 -X1_bit7 -X1_bit8 -X1_bit9 -X1_bit_1 -X1_bit_2 -X1_bit_3 -X1_bit_4 -X1_bit_5 -X1_bit_6 -X1_bit_7 -X2_bit0 X2_bit1 -X2_bit10 -X2_bit11 -X2_bit12 -X2_bit2 X2_bit3 -X2_bit4 -X2_bit5 -X2_bit6 -X2_bit7 -X2_bit8 -X2_bit9 -X2_bit_1 -X2_bit_2 -X2_bit_3 -X2_bit_4 -X2_bit_5 -X2_bit_6 -X2_bit_7 -X3_bit0 -X3_bit1 -X3_bit10 -X3_bit11 -X3_bit12 -X3_bit2 -X3_bit3 -X3_bit4 -X3_bit5 -X3_bit6 -X3_bit7 -X3_bit8 -X3_bit9 -X3_bit_1 -X3_bit_2 -X3_bit_3 -X3_bit_4 -X3_bit_5 -X3_bit_6 -X3_bit_7 -X4_bit0 X4_bit1 -X4_bit10 -X4_bit11 -X4_bit12 X4_bit2 X4_bit3 X4_bit4 -X4_bit5 -X4_bit6 -X4_bit7 -X4_bit8 -X4_bit9 -X4_bit_1 -X4_bit_2 -X4_bit_3 -X4_bit_4 -X4_bit_5 -X4_bit_6 -X4_bit_7 -X5_bit0 -X5_bit1 -X5_bit10 -X5_bit11 -X5_bit12 -X5_bit2 -X5_bit3 -X5_bit4 -X5_bit5 -X5_bit6 -X5_bit7 -X5_bit8 -X5_bit9 -X5_bit_1 -X5_bit_2 -X5_bit_3 -X5_bit_4 -X5_bit_5 -X5_bit_6 -X5_bit_7 -X6_bit0 -X6_bit1 -X6_bit10 -X6_bit11 -X6_bit12 X6_bit2 -X6_bit3 X6_bit4 -X6_bit5 -X6_bit6 -X6_bit7 -X6_bit8 -X6_bit9 -X6_bit_1 -X6_bit_2 -X6_bit_3 -X6_bit_4 -X6_bit_5 -X6_bit_6 -X6_bit_7 -X7_bit0 -X7_bit1 -X7_bit10 -X7_bit11 -X7_bit12 X7_bit2 -X7_bit3 X7_bit4 -X7_bit5 -X7_bit6 -X7_bit7 -X7_bit8 -X7_bit9 -X7_bit_1 -X7_bit_2 -X7_bit_3 -X7_bit_4 -X7_bit_5 -X7_bit_6 -X7_bit_7 -X8_bit0 -X8_bit1 -X8_bit10 -X8_bit11 -X8_bit12 -X8_bit2 -X8_bit3 -X8_bit4 -X8_bit5 -X8_bit6 -X8_bit7 -X8_bit8 -X8_bit9 -X8_bit_1 -X8_bit_2 -X8_bit_3 -X8_bit_4 -X8_bit_5 -X8_bit_6 -X8_bit_7 -X9_bit0 -X9_bit1 -X9_bit10 -X9_bit11 -X9_bit12 -X9_bit2 -X9_bit3 -X9_bit4 -X9_bit5 -X9_bit6 -X9_bit7 -X9_bit8 -X9_bit9 -X9_bit_1 -X9_bit_2 -X9_bit_3 -X9_bit_4 -X9_bit_5 -X9_bit_6 -X9_bit_7 -Y0_bit0 -Y10_bit0 Y11_bit0 -Y1_bit0 Y2_bit0 -Y3_bit0 Y4_bit0 -Y5_bit0 Y6_bit0 Y7_bit0 -Y8_bit0 -Y9_bit0 
c Done, CPU Time=30.5644

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/27079/stat): 27079 (PBS4) R 27078 27079 824 0 -1 0 18 0 0 0 0 0 0 0 22 0 1 0 1799088996 978944 2 4294967295 134512640 135450776 3221224560 3221224560 134512960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/27079/statm): 239 2 232 232 0 7 0
[pid=27079] vsize: 956
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-bk4x3.opb
open syscall for file /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-bk4x3.opb

[startup+10.0034 s]
Raw data (loadavg): 1.02 1.02 1.00 1/56 27079
Raw data (/proc/27079/stat): 27079 (PBS4) T 27078 27079 824 0 -1 0 938 0 0 0 972 12 0 0 25 0 1 0 1799088996 5754880 921 4294967295 134512640 135450776 3221224560 3221223420 135126769 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/27079/statm): 1405 921 232 232 0 1173 0
[pid=27079] vsize: 5620
Current children cumulated CPU time (s) 9.84
Current children cumulated vsize (Kb) 5620

[startup+20.0042 s]
Raw data (loadavg): 1.02 1.02 1.00 2/56 27079
Raw data (/proc/27079/stat): 27079 (PBS4) R 27078 27079 824 0 -1 0 1646 0 0 0 1953 19 0 0 25 0 1 0 1799088996 10289152 1629 4294967295 134512640 135450776 3221224560 3221223264 134536649 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/27079/statm): 2512 1629 232 232 0 2280 0
[pid=27079] vsize: 10048
Current children cumulated CPU time (s) 19.72
Current children cumulated vsize (Kb) 10048

[startup+30.0049 s]
Raw data (loadavg): 1.01 1.01 1.00 2/56 27079
Raw data (/proc/27079/stat): 27079 (PBS4) R 27078 27079 824 0 -1 0 2038 0 0 0 2931 26 0 0 25 0 1 0 1799088996 10764288 1972 4294967295 134512640 135450776 3221224560 3221223264 134536511 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/27079/statm): 2628 1972 232 232 0 2396 0
[pid=27079] vsize: 10512
Current children cumulated CPU time (s) 29.57
Current children cumulated vsize (Kb) 10512
One traced child (pid=27079) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 31.0357
CPU time (s): 30.5923
CPU user time (s): 30.3144
CPU system time (s): 0.277957
CPU usage (%): 98.5715
Max. virtual memory (cumulated for all children) (Kb): 10512

Verifier Data

Verifier:	OK	44800