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-v2-20-10/plato.asu.edu/pub/fctp/normalized-mps-v2-20-10-bk4x3.opb
MD5SUM03cb86a701c2d8e08ff4c99e11fac5c4
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 358400
Optimality of the best value was proved YES
Number of terms in the objective function 372
Biggest coefficient in the objective function 2684354560
Number of bits for the biggest coefficient in the objective function 32
Sum of the numbers in the objective function 36507467742
Number of bits of the sum of numbers in the objective function 36
Biggest number in a constraint 2684354560
Number of bits of the biggest number in a constraint 32
Biggest sum of numbers in a constraint 36507467742
Number of bits of the biggest sum of numbers36
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark26.298
Number of variables372
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 constraint31
Maximum length of a constraint120

Trace number 10151

Launcher Data

LAUNCH ON wulflinc19 THE 2005-09-23 17:18:48 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8910 boxname=wulflinc19 idbench=706 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  03cb86a701c2d8e08ff4c99e11fac5c4  /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-bk4x3.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-bk4x3.opb
IDLAUNCH: 8910
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
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	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
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:        909312 kB
Buffers:         15864 kB
Cached:          90080 kB
SwapCached:          0 kB
Active:          45744 kB
Inactive:        63032 kB
HighTotal:      131008 kB
HighFree:        44828 kB
LowTotal:       903652 kB
LowFree:        864484 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10948 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:20:11 (client local time) WITH STATUS 30 IN 81.6936 SECONDS
stats: 8910 0 81.6936 30

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 527760
c small objective detected
c CONFLICT during preprocess 
c [startup+1.03616 s]  setting bit 35 to 0
c CONFLICT during preprocess 
c [startup+1.09795 s]  setting bit 34 to 0
c CONFLICT during preprocess 
c [startup+1.15991 s]  setting bit 33 to 0
c CONFLICT during preprocess 
c [startup+1.22191 s]  setting bit 32 to 0
c CONFLICT during preprocess 
c [startup+1.28406 s]  setting bit 31 to 0
c CONFLICT during preprocess 
c [startup+1.34731 s]  setting bit 30 to 0
c CONFLICT during preprocess 
c [startup+1.41223 s]  setting bit 29 to 0
c CONFLICT during preprocess 
c [startup+1.47692 s]  setting bit 28 to 0
c CONFLICT during preprocess 
c [startup+1.54198 s]  setting bit 27 to 0
c CONFLICT during preprocess 
c [startup+1.60796 s]  setting bit 26 to 0
c CONFLICT during preprocess 
c [startup+1.67363 s]  setting bit 25 to 0
c CONFLICT during preprocess 
c [startup+1.7397 s]  setting bit 24 to 0
c CONFLICT during preprocess 
c [startup+1.80586 s]  setting bit 23 to 0
c CONFLICT during preprocess 
c [startup+1.8722 s]  setting bit 22 to 0
c CONFLICT during preprocess 
c [startup+1.93875 s]  setting bit 21 to 0
c CONFLICT during preprocess 
c [startup+2.00524 s]  setting bit 20 to 0
c CONFLICT during preprocess 
c [startup+2.07466 s]  setting bit 19 to 0
c [startup+4.65076 s]  setting bit 18 to 0
c got solution with objective value: 389120
c [startup+11.7716 s]  setting bit 17 to 1

c Decision: 3961/20870	Time: 4.85326/86400
c Decision: 3961/20870	Time: 8.5477/86400
c [startup+24.7384 s]  setting bit 16 to 0

c got solution with objective value: 358400
c [startup+28.3532 s]  setting bit 15 to 1

c Decision: 3899/20870	Time: 4.97624/86400
c [startup+42.9168 s]  setting bit 14 to 0

c Decision: 3808/20870	Time: 6.63099/86400
c Decision: 4004/20870	Time: 13.26/86400
c [startup+63.2442 s]  setting bit 13 to 0

c got solution with objective value: 358400
c [startup+68.6628 s]  setting bit 12 to 1

c [startup+79.452 s]  setting bit 11 to 0

c got solution with objective value: 358400
c [startup+79.6047 s]  setting bit 10 to 1

c [startup+81.354 s]  setting bit 9 to 0

c got solution with objective value: 358400
c [startup+81.4957 s]  setting bit 8 to 1

c got solution with objective value: 358400
c [startup+81.6191 s]  setting bit 7 to 1
c CONFLICT during preprocess 

c [startup+81.7139 s]  setting bit 6 to 0
c CONFLICT during preprocess 

c [startup+81.8012 s]  setting bit 5 to 0
c CONFLICT during preprocess 

c [startup+81.8887 s]  setting bit 4 to 0

c got solution with objective value: 358400
c [startup+82.0218 s]  setting bit 3 to 1

c got solution with objective value: 358400
c [startup+82.1449 s]  setting bit 2 to 1

c got solution with objective value: 358400
c [startup+82.268 s]  setting bit 1 to 1

c got solution with objective value: 358400
c [startup+82.3909 s]  setting bit 0 to 1
s OPTIMUM FOUND
v -X0_bit0 -X0_bit1 -X0_bit10 -X0_bit11 -X0_bit12 -X0_bit13 -X0_bit14 -X0_bit15 -X0_bit16 -X0_bit17 -X0_bit18 -X0_bit19 -X0_bit2 -X0_bit3 -X0_bit4 -X0_bit5 -X0_bit6 -X0_bit7 -X0_bit8 -X0_bit9 -X0_bit_1 -X0_bit_10 -X0_bit_2 -X0_bit_3 -X0_bit_4 -X0_bit_5 -X0_bit_6 -X0_bit_7 -X0_bit_8 -X0_bit_9 -X10_bit0 -X10_bit1 -X10_bit10 -X10_bit11 -X10_bit12 -X10_bit13 -X10_bit14 -X10_bit15 -X10_bit16 -X10_bit17 -X10_bit18 -X10_bit19 -X10_bit2 -X10_bit3 -X10_bit4 -X10_bit5 -X10_bit6 -X10_bit7 -X10_bit8 -X10_bit9 -X10_bit_1 -X10_bit_10 -X10_bit_2 -X10_bit_3 -X10_bit_4 -X10_bit_5 -X10_bit_6 -X10_bit_7 -X10_bit_8 -X10_bit_9 -X11_bit0 -X11_bit1 -X11_bit10 -X11_bit11 -X11_bit12 -X11_bit13 -X11_bit14 -X11_bit15 -X11_bit16 -X11_bit17 -X11_bit18 -X11_bit19 X11_bit2 -X11_bit3 X11_bit4 -X11_bit5 -X11_bit6 -X11_bit7 -X11_bit8 -X11_bit9 -X11_bit_1 -X11_bit_10 -X11_bit_2 -X11_bit_3 -X11_bit_4 -X11_bit_5 -X11_bit_6 -X11_bit_7 -X11_bit_8 -X11_bit_9 -X1_bit0 -X1_bit1 -X1_bit10 -X1_bit11 -X1_bit12 -X1_bit13 -X1_bit14 -X1_bit15 -X1_bit16 -X1_bit17 -X1_bit18 -X1_bit19 -X1_bit2 -X1_bit3 -X1_bit4 -X1_bit5 -X1_bit6 -X1_bit7 -X1_bit8 -X1_bit9 -X1_bit_1 -X1_bit_10 -X1_bit_2 -X1_bit_3 -X1_bit_4 -X1_bit_5 -X1_bit_6 -X1_bit_7 -X1_bit_8 -X1_bit_9 -X2_bit0 X2_bit1 -X2_bit10 -X2_bit11 -X2_bit12 -X2_bit13 -X2_bit14 -X2_bit15 -X2_bit16 -X2_bit17 -X2_bit18 -X2_bit19 -X2_bit2 X2_bit3 -X2_bit4 -X2_bit5 -X2_bit6 -X2_bit7 -X2_bit8 -X2_bit9 -X2_bit_1 -X2_bit_10 -X2_bit_2 -X2_bit_3 -X2_bit_4 -X2_bit_5 -X2_bit_6 -X2_bit_7 -X2_bit_8 -X2_bit_9 -X3_bit0 -X3_bit1 -X3_bit10 -X3_bit11 -X3_bit12 -X3_bit13 -X3_bit14 -X3_bit15 -X3_bit16 -X3_bit17 -X3_bit18 -X3_bit19 -X3_bit2 -X3_bit3 -X3_bit4 -X3_bit5 -X3_bit6 -X3_bit7 -X3_bit8 -X3_bit9 -X3_bit_1 -X3_bit_10 -X3_bit_2 -X3_bit_3 -X3_bit_4 -X3_bit_5 -X3_bit_6 -X3_bit_7 -X3_bit_8 -X3_bit_9 -X4_bit0 X4_bit1 -X4_bit10 -X4_bit11 -X4_bit12 -X4_bit13 -X4_bit14 -X4_bit15 -X4_bit16 -X4_bit17 -X4_bit18 -X4_bit19 X4_bit2 X4_bit3 X4_bit4 -X4_bit5 -X4_bit6 -X4_bit7 -X4_bit8 -X4_bit9 -X4_bit_1 -X4_bit_10 -X4_bit_2 -X4_bit_3 -X4_bit_4 -X4_bit_5 -X4_bit_6 -X4_bit_7 -X4_bit_8 -X4_bit_9 -X5_bit0 -X5_bit1 -X5_bit10 -X5_bit11 -X5_bit12 -X5_bit13 -X5_bit14 -X5_bit15 -X5_bit16 -X5_bit17 -X5_bit18 -X5_bit19 -X5_bit2 -X5_bit3 -X5_bit4 -X5_bit5 -X5_bit6 -X5_bit7 -X5_bit8 -X5_bit9 -X5_bit_1 -X5_bit_10 -X5_bit_2 -X5_bit_3 -X5_bit_4 -X5_bit_5 -X5_bit_6 -X5_bit_7 -X5_bit_8 -X5_bit_9 -X6_bit0 -X6_bit1 -X6_bit10 -X6_bit11 -X6_bit12 -X6_bit13 -X6_bit14 -X6_bit15 -X6_bit16 -X6_bit17 -X6_bit18 -X6_bit19 X6_bit2 -X6_bit3 X6_bit4 -X6_bit5 -X6_bit6 -X6_bit7 -X6_bit8 -X6_bit9 -X6_bit_1 -X6_bit_10 -X6_bit_2 -X6_bit_3 -X6_bit_4 -X6_bit_5 -X6_bit_6 -X6_bit_7 -X6_bit_8 -X6_bit_9 -X7_bit0 -X7_bit1 -X7_bit10 -X7_bit11 -X7_bit12 -X7_bit13 -X7_bit14 -X7_bit15 -X7_bit16 -X7_bit17 -X7_bit18 -X7_bit19 X7_bit2 -X7_bit3 X7_bit4 -X7_bit5 -X7_bit6 -X7_bit7 -X7_bit8 -X7_bit9 -X7_bit_1 -X7_bit_10 -X7_bit_2 -X7_bit_3 -X7_bit_4 -X7_bit_5 -X7_bit_6 -X7_bit_7 -X7_bit_8 -X7_bit_9 -X8_bit0 -X8_bit1 -X8_bit10 -X8_bit11 -X8_bit12 -X8_bit13 -X8_bit14 -X8_bit15 -X8_bit16 -X8_bit17 -X8_bit18 -X8_bit19 -X8_bit2 -X8_bit3 -X8_bit4 -X8_bit5 -X8_bit6 -X8_bit7 -X8_bit8 -X8_bit9 -X8_bit_1 -X8_bit_10 -X8_bit_2 -X8_bit_3 -X8_bit_4 -X8_bit_5 -X8_bit_6 -X8_bit_7 -X8_bit_8 -X8_bit_9 -X9_bit0 -X9_bit1 -X9_bit10 -X9_bit11 -X9_bit12 -X9_bit13 -X9_bit14 -X9_bit15 -X9_bit16 -X9_bit17 -X9_bit18 -X9_bit19 -X9_bit2 -X9_bit3 -X9_bit4 -X9_bit5 -X9_bit6 -X9_bit7 -X9_bit8 -X9_bit9 -X9_bit_1 -X9_bit_10 -X9_bit_2 -X9_bit_3 -X9_bit_4 -X9_bit_5 -X9_bit_6 -X9_bit_7 -X9_bit_8 -X9_bit_9 -Y0_bit0 -Y10_bit0 Y11_bit0 -Y1_bit0 Y2_bit0 -Y3_bit0 Y4_bit0 -Y5_bit0 Y6_bit0 Y7_bit0 -Y8_bit0 -Y9_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/9084/stat): 9084 (pb2sat) R 9083 9084 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21930687 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9084/statm): 373 2 364 364 0 9 0
[pid=9084] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-bk4x3.opb

[startup+10.0019 s]
Raw data (loadavg): 0.94 0.98 0.94 2/55 9084
Raw data (/proc/9084/stat): 9084 (pb2sat) R 9083 9084 4060 0 -1 0 4533 0 0 0 972 17 0 0 25 0 1 0 21930687 14028800 2443 4294967295 134512640 135987407 3221224560 3221223104 134811729 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9084/statm): 3425 2443 364 364 0 3061 0
[pid=9084] vsize: 13700
Current children cumulated CPU time (s) 9.89
Current children cumulated vsize (Kb) 13700

[startup+20.0028 s]
Raw data (loadavg): 0.95 0.98 0.94 2/55 9084
Raw data (/proc/9084/stat): 9084 (pb2sat) R 9083 9084 4060 0 -1 0 4745 0 0 0 1956 23 0 0 25 0 1 0 21930687 14225408 2573 4294967295 134512640 135987407 3221224560 3221223104 134811839 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9084/statm): 3473 2573 364 364 0 3109 0
[pid=9084] vsize: 13892
Current children cumulated CPU time (s) 19.79
Current children cumulated vsize (Kb) 13892

[startup+30.0036 s]
Raw data (loadavg): 0.95 0.98 0.94 2/55 9084
Raw data (/proc/9084/stat): 9084 (pb2sat) R 9083 9084 4060 0 -1 0 5034 0 0 0 2941 29 0 0 25 0 1 0 21930687 14503936 2739 4294967295 134512640 135987407 3221224560 3221223104 134811775 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9084/statm): 3541 2739 364 364 0 3177 0
[pid=9084] vsize: 14164
Current children cumulated CPU time (s) 29.7
Current children cumulated vsize (Kb) 14164

[startup+40.0034 s]
Raw data (loadavg): 0.96 0.98 0.94 2/55 9084
Raw data (/proc/9084/stat): 9084 (pb2sat) R 9083 9084 4060 0 -1 0 5139 0 0 0 3929 33 0 0 25 0 1 0 21930687 14503936 2803 4294967295 134512640 135987407 3221224560 3221223104 134812018 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9084/statm): 3541 2803 364 364 0 3177 0
[pid=9084] vsize: 14164
Current children cumulated CPU time (s) 39.62
Current children cumulated vsize (Kb) 14164

[startup+50.0042 s]
Raw data (loadavg): 0.97 0.98 0.94 2/55 9084
Raw data (/proc/9084/stat): 9084 (pb2sat) R 9083 9084 4060 0 -1 0 5333 0 0 0 4913 40 0 0 25 0 1 0 21930687 16879616 2915 4294967295 134512640 135987407 3221224560 3221223104 134811988 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9084/statm): 4121 2915 364 364 0 3757 0
[pid=9084] vsize: 16484
Current children cumulated CPU time (s) 49.53
Current children cumulated vsize (Kb) 16484

[startup+60.0041 s]
Raw data (loadavg): 0.97 0.98 0.94 2/55 9084
Raw data (/proc/9084/stat): 9084 (pb2sat) R 9083 9084 4060 0 -1 0 5428 0 0 0 5898 44 0 0 25 0 1 0 21930687 17014784 2969 4294967295 134512640 135987407 3221224560 3221223104 134811805 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9084/statm): 4154 2969 364 364 0 3790 0
[pid=9084] vsize: 16616
Current children cumulated CPU time (s) 59.42
Current children cumulated vsize (Kb) 16616

[startup+70.0039 s]
Raw data (loadavg): 0.97 0.98 0.94 2/55 9084
Raw data (/proc/9084/stat): 9084 (pb2sat) R 9083 9084 4060 0 -1 0 5663 0 0 0 6885 50 0 0 25 0 1 0 21930687 17149952 3122 4294967295 134512640 135987407 3221224560 3221223164 134812115 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9084/statm): 4187 3122 364 364 0 3823 0
[pid=9084] vsize: 16748
Current children cumulated CPU time (s) 69.35
Current children cumulated vsize (Kb) 16748

[startup+80.0048 s]
Raw data (loadavg): 0.98 0.98 0.94 2/55 9084
Raw data (/proc/9084/stat): 9084 (pb2sat) R 9083 9084 4060 0 -1 0 5887 0 0 0 7871 55 0 0 25 0 1 0 21930687 17285120 3264 4294967295 134512640 135987407 3221224560 3221222976 134788454 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9084/statm): 4220 3264 364 364 0 3856 0
[pid=9084] vsize: 16880
Current children cumulated CPU time (s) 79.26
Current children cumulated vsize (Kb) 16880
One traced child (pid=9084) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 82.4383
CPU time (s): 81.6936
CPU user time (s): 81.1117
CPU system time (s): 0.581911
CPU usage (%): 99.0967
Max. virtual memory (cumulated for all children) (Kb): 16880

Verifier Data

Verifier:	OK	358400