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/www.csit.fsu.edu/~burkardt/datasets/mps/normalized-mps-v2-13-7-maros.opb
MD5SUM1ae5b04b2d0e1f5ab82e29e98b8350c0
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 43097
Optimality of the best value was proved YES
Number of terms in the objective function 64
Biggest coefficient in the objective function 4718592
Number of bits for the biggest coefficient in the objective function 23
Sum of the numbers in the objective function 14745570
Number of bits of the sum of numbers in the objective function 24
Biggest number in a constraint 4718592
Number of bits of the biggest number in a constraint 23
Biggest sum of numbers in a constraint 14745570
Number of bits of the biggest sum of numbers24
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark23.3694
Number of variables64
Total number of constraints6
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 constraints6
Minimum length of a constraint12
Maximum length of a constraint64

Trace number 10624

Launcher Data

LAUNCH ON wulflinc20 THE 2005-09-23 19:17:13 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9375 boxname=wulflinc20 idbench=1171 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1ae5b04b2d0e1f5ab82e29e98b8350c0  /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-13-7-maros.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-13-7-maros.opb
IDLAUNCH: 9375
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.012
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		: 451.012
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        930212 kB
Buffers:         12864 kB
Cached:          74720 kB
SwapCached:          0 kB
Active:          45856 kB
Inactive:        44596 kB
HighTotal:      131008 kB
HighFree:        51912 kB
LowTotal:       903652 kB
LowFree:        878300 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8356 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 19:19:07 (client local time) WITH STATUS 30 IN 111.433 SECONDS
stats: 9375 0 111.433 30

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 54063
c small objective detected
c CONFLICT during preprocess 
c [startup+0.229521 s]  setting bit 23 to 0
c CONFLICT during preprocess 
c [startup+0.242716 s]  setting bit 22 to 0
c CONFLICT during preprocess 
c [startup+0.255951 s]  setting bit 21 to 0
c CONFLICT during preprocess 
c [startup+0.269422 s]  setting bit 20 to 0
c CONFLICT during preprocess 
c [startup+0.282876 s]  setting bit 19 to 0
c CONFLICT during preprocess 
c [startup+0.296472 s]  setting bit 18 to 0
c CONFLICT during preprocess 
c [startup+0.31012 s]  setting bit 17 to 0
c CONFLICT during preprocess 
c [startup+0.323851 s]  setting bit 16 to 0
c [startup+0.351868 s]  setting bit 15 to 0
c [startup+0.912419 s]  setting bit 14 to 0
c got solution with objective value: 45376
c [startup+1.27554 s]  setting bit 13 to 1

c Decision: 811/4937	Time: 2.02469/86400
c [startup+3.92687 s]  setting bit 12 to 0

c Decision: 738/4937	Time: 2.21766/86400
c Decision: 738/4937	Time: 3.17052/86400
c Decision: 748/4937	Time: 4.93425/86400
c got solution with objective value: 43810
c [startup+9.3242 s]  setting bit 11 to 1

c Decision: 743/4937	Time: 1.71574/86400
c Decision: 829/4937	Time: 3.79542/86400
c [startup+15.7788 s]  setting bit 10 to 0

c Decision: 738/4937	Time: 2.19867/86400
c Decision: 738/4937	Time: 3.50747/86400
c Decision: 741/4937	Time: 5.34619/86400
c Decision: 748/4937	Time: 7.07992/86400
c Decision: 752/4937	Time: 8.81766/86400
c got solution with objective value: 43305
c [startup+25.4953 s]  setting bit 9 to 1

c Decision: 738/4937	Time: 2.09368/86400
c Decision: 844/4937	Time: 5.16721/86400
c Decision: 1107/4937	Time: 10.4884/86400
c Decision: 1500/4937	Time: 13.7219/86400
c [startup+40.6326 s]  setting bit 8 to 0

c Decision: 738/4937	Time: 2.40263/86400
c Decision: 741/4937	Time: 3.90541/86400
c Decision: 837/4937	Time: 5.73613/86400
c Decision: 837/4937	Time: 7.39687/86400
c Decision: 837/4937	Time: 9.2326/86400
c Decision: 837/4937	Time: 11.0673/86400
c Decision: 837/4937	Time: 12.822/86400
c got solution with objective value: 43182
c [startup+54.3224 s]  setting bit 7 to 1

c Decision: 842/4937	Time: 3.16552/86400
c got solution with objective value: 43118
c [startup+59.2068 s]  setting bit 6 to 1

c Decision: 1024/4937	Time: 4.02639/86400
c Decision: 1085/4937	Time: 6.601/86400
c Decision: 1193/4937	Time: 9.26359/86400
c Decision: 1193/4937	Time: 11.7172/86400
c [startup+74.7146 s]  setting bit 5 to 0

c got solution with objective value: 43100
c [startup+75.7115 s]  setting bit 4 to 1

c Decision: 854/4937	Time: 1.88971/86400
c Decision: 854/4937	Time: 4.06338/86400
c Decision: 1232/4937	Time: 8.39872/86400
c Decision: 1232/4937	Time: 10.7824/86400
c Decision: 1269/4937	Time: 13.379/86400
c [startup+93.2879 s]  setting bit 3 to 0

c got solution with objective value: 43097
c [startup+93.9788 s]  setting bit 2 to 1

c Decision: 1068/4937	Time: 6.71598/86400
c Decision: 1068/4937	Time: 10.2494/86400
c [startup+112.434 s]  setting bit 1 to 0

c got solution with objective value: 43097
c [startup+113.415 s]  setting bit 0 to 1
s OPTIMUM FOUND
v VOL1_bit0 VOL1_bit1 -VOL1_bit10 -VOL1_bit11 -VOL1_bit12 -VOL1_bit2 -VOL1_bit3 -VOL1_bit4 -VOL1_bit5 -VOL1_bit6 -VOL1_bit7 -VOL1_bit8 -VOL1_bit9 -VOL1_bit_1 VOL1_bit_2 -VOL1_bit_3 VOL1_bit_4 VOL1_bit_5 -VOL1_bit_6 -VOL1_bit_7 VOL2_bit0 -VOL2_bit1 -VOL2_bit10 -VOL2_bit11 -VOL2_bit12 VOL2_bit2 VOL2_bit3 -VOL2_bit4 -VOL2_bit5 -VOL2_bit6 -VOL2_bit7 -VOL2_bit8 -VOL2_bit9 -VOL2_bit_1 VOL2_bit_2 -VOL2_bit_3 VOL2_bit_4 -VOL2_bit_5 -VOL2_bit_6 VOL2_bit_7 -VOL3_bit0 VOL3_bit1 VOL3_bit2 VOL3_bit3 VOL3_bit4 -VOL3_bit_1 -VOL3_bit_2 -VOL3_bit_3 -VOL3_bit_4 -VOL3_bit_5 -VOL3_bit_6 -VOL3_bit_7 -VOL4_bit0 -VOL4_bit1 -VOL4_bit2 -VOL4_bit3 -VOL4_bit4 -VOL4_bit_1 -VOL4_bit_2 -VOL4_bit_3 -VOL4_bit_4 -VOL4_bit_5 -VOL4_bit_6 -VOL4_bit_7

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/10159/stat): 10159 (pb2sat) R 10158 10159 4059 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22641457 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10159/statm): 373 2 364 364 0 9 0
[pid=10159] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-13-7-maros.opb

[startup+10.0025 s]
Raw data (loadavg): 0.92 0.95 0.94 1/55 10159
Raw data (/proc/10159/stat): 10159 (pb2sat) T 10158 10159 4059 0 -1 0 1233 0 0 0 953 18 0 0 25 0 1 0 22641457 5623808 952 4294967295 134512640 135987407 3221224560 3221223244 135541329 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/10159/statm): 1373 952 364 364 0 1009 0
[pid=10159] vsize: 5492
Current children cumulated CPU time (s) 9.71
Current children cumulated vsize (Kb) 5492

[startup+20.0033 s]
Raw data (loadavg): 0.93 0.95 0.94 2/55 10159
Raw data (/proc/10159/stat): 10159 (pb2sat) R 10158 10159 4059 0 -1 0 1471 0 0 0 1916 32 0 0 25 0 1 0 22641457 7028736 1190 4294967295 134512640 135987407 3221224560 3221223104 134812053 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10159/statm): 1716 1190 364 364 0 1352 0
[pid=10159] vsize: 6864
Current children cumulated CPU time (s) 19.48
Current children cumulated vsize (Kb) 6864

[startup+30.004 s]
Raw data (loadavg): 0.94 0.95 0.94 2/55 10159
Raw data (/proc/10159/stat): 10159 (pb2sat) R 10158 10159 4059 0 -1 0 1840 0 0 0 2887 43 0 0 25 0 1 0 22641457 8040448 1366 4294967295 134512640 135987407 3221224560 3221223104 134812038 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10159/statm): 1963 1366 364 364 0 1599 0
[pid=10159] vsize: 7852
Current children cumulated CPU time (s) 29.3
Current children cumulated vsize (Kb) 7852

[startup+40.0047 s]
Raw data (loadavg): 0.95 0.95 0.94 2/55 10159
Raw data (/proc/10159/stat): 10159 (pb2sat) R 10158 10159 4059 0 -1 0 2202 0 0 0 3850 57 0 0 25 0 1 0 22641457 10657792 1728 4294967295 134512640 135987407 3221224560 3221223104 134811950 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10159/statm): 2602 1728 364 364 0 2238 0
[pid=10159] vsize: 10408
Current children cumulated CPU time (s) 39.07
Current children cumulated vsize (Kb) 10408

[startup+50.0045 s]
Raw data (loadavg): 0.96 0.95 0.94 2/55 10159
Raw data (/proc/10159/stat): 10159 (pb2sat) R 10158 10159 4059 0 -1 0 2369 0 0 0 4813 71 0 0 25 0 1 0 22641457 10928128 1895 4294967295 134512640 135987407 3221224560 3221223104 134811775 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10159/statm): 2668 1895 364 364 0 2304 0
[pid=10159] vsize: 10672
Current children cumulated CPU time (s) 48.84
Current children cumulated vsize (Kb) 10672

[startup+60.0052 s]
Raw data (loadavg): 0.96 0.96 0.94 1/55 10159
Raw data (/proc/10159/stat): 10159 (pb2sat) T 10158 10159 4059 0 -1 0 2436 0 0 0 5787 80 0 0 25 0 1 0 22641457 11161600 1962 4294967295 134512640 135987407 3221224560 3221223244 135541329 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/10159/statm): 2725 1962 364 364 0 2361 0
[pid=10159] vsize: 10900
Current children cumulated CPU time (s) 58.67
Current children cumulated vsize (Kb) 10900

[startup+70.006 s]
Raw data (loadavg): 0.97 0.96 0.94 2/55 10159
Raw data (/proc/10159/stat): 10159 (pb2sat) R 10158 10159 4059 0 -1 0 2515 0 0 0 6764 89 0 0 25 0 1 0 22641457 11395072 2041 4294967295 134512640 135987407 3221224560 3221222992 134801596 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10159/statm): 2782 2041 364 364 0 2418 0
[pid=10159] vsize: 11128
Current children cumulated CPU time (s) 68.53
Current children cumulated vsize (Kb) 11128

[startup+80.0057 s]
Raw data (loadavg): 0.97 0.96 0.94 2/55 10159
Raw data (/proc/10159/stat): 10159 (pb2sat) R 10158 10159 4059 0 -1 0 2684 0 0 0 7741 97 0 0 25 0 1 0 22641457 11530240 2210 4294967295 134512640 135987407 3221224560 3221223104 134811775 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10159/statm): 2815 2210 364 364 0 2451 0
[pid=10159] vsize: 11260
Current children cumulated CPU time (s) 78.38
Current children cumulated vsize (Kb) 11260

[startup+90.0064 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 10159
Raw data (/proc/10159/stat): 10159 (pb2sat) R 10158 10159 4059 0 -1 0 2747 0 0 0 8720 104 0 0 25 0 1 0 22641457 11665408 2273 4294967295 134512640 135987407 3221224560 3221223104 134811800 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10159/statm): 2848 2273 364 364 0 2484 0
[pid=10159] vsize: 11392
Current children cumulated CPU time (s) 88.24
Current children cumulated vsize (Kb) 11392

[startup+100.006 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 10159
Raw data (/proc/10159/stat): 10159 (pb2sat) R 10158 10159 4059 0 -1 0 3008 0 0 0 9701 112 0 0 25 0 1 0 22641457 11796480 2534 4294967295 134512640 135987407 3221224560 3221223104 134811839 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10159/statm): 2880 2534 364 364 0 2516 0
[pid=10159] vsize: 11520
Current children cumulated CPU time (s) 98.13
Current children cumulated vsize (Kb) 11520

[startup+110.007 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 10159
Raw data (/proc/10159/stat): 10159 (pb2sat) R 10158 10159 4059 0 -1 0 3076 0 0 0 10684 119 0 0 25 0 1 0 22641457 12025856 2602 4294967295 134512640 135987407 3221224560 3221223192 134812410 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10159/statm): 2936 2602 364 364 0 2572 0
[pid=10159] vsize: 11744
Current children cumulated CPU time (s) 108.03
Current children cumulated vsize (Kb) 11744
One traced child (pid=10159) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 113.448
CPU time (s): 111.433
CPU user time (s): 110.21
CPU system time (s): 1.22281
CPU usage (%): 98.2237
Max. virtual memory (cumulated for all children) (Kb): 11744

Verifier Data

Verifier:	OK	43097