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/MIPLIB/miplib3/normalized-mps-v2-20-10-flugpl.opb
MD5SUMf7c404708fc3042fadfc18ab8efeb9a5
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 14745600
Optimality of the best value was proved YES
Number of terms in the objective function 265
Biggest coefficient in the objective function 48318382080
Number of bits for the biggest coefficient in the objective function 36
Sum of the numbers in the objective function 103103023008
Number of bits of the sum of numbers in the objective function 37
Biggest number in a constraint 80530636800
Number of bits of the biggest number in a constraint 37
Biggest sum of numbers in a constraint 162146381673
Number of bits of the biggest sum of numbers38
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark27.8208
Number of variables265
Total number of constraints29
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 constraints29
Minimum length of a constraint5
Maximum length of a constraint65

Trace number 10070

Launcher Data

LAUNCH ON wulflinc25 THE 2005-09-23 16:49:07 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8832 boxname=wulflinc25 idbench=628 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  f7c404708fc3042fadfc18ab8efeb9a5  /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-flugpl.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-flugpl.opb
IDLAUNCH: 8832
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.002
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		: 451.002
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:        923432 kB
Buffers:         17428 kB
Cached:          74644 kB
SwapCached:          0 kB
Active:          44724 kB
Inactive:        50244 kB
HighTotal:      131008 kB
HighFree:        52444 kB
LowTotal:       903652 kB
LowFree:        870988 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:            10772 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:49:47 (client local time) WITH STATUS 30 IN 39.294 SECONDS
stats: 8832 0 39.294 30

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 20218713
c small objective detected
c CONFLICT during preprocess 
c [startup+5.24996 s]  setting bit 36 to 0
c CONFLICT during preprocess 
c [startup+5.64169 s]  setting bit 35 to 0
c CONFLICT during preprocess 
c [startup+6.03495 s]  setting bit 34 to 0
c CONFLICT during preprocess 
c [startup+6.42839 s]  setting bit 33 to 0
c CONFLICT during preprocess 
c [startup+6.82219 s]  setting bit 32 to 0
c CONFLICT during preprocess 
c [startup+7.21784 s]  setting bit 31 to 0
c CONFLICT during preprocess 
c [startup+7.61208 s]  setting bit 30 to 0
c CONFLICT during preprocess 
c [startup+8.00745 s]  setting bit 29 to 0
c CONFLICT during preprocess 
c [startup+8.40665 s]  setting bit 28 to 0
c CONFLICT during preprocess 
c [startup+8.80712 s]  setting bit 27 to 0
c CONFLICT during preprocess 
c [startup+9.20723 s]  setting bit 26 to 0
c CONFLICT during preprocess 
c [startup+9.61346 s]  setting bit 25 to 0
c CONFLICT during preprocess 
c [startup+10.0487 s]  setting bit 24 to 0
c [startup+16.8554 s]  setting bit 23 to 0
c got solution with objective value: 16024408
c [startup+19.103 s]  setting bit 22 to 1
c [startup+21.4333 s]  setting bit 21 to 0
c got solution with objective value: 14975832
c [startup+22.4277 s]  setting bit 20 to 1
c [startup+24.3366 s]  setting bit 19 to 0
c [startup+26.5743 s]  setting bit 18 to 0
c got solution with objective value: 14844760
c [startup+27.3424 s]  setting bit 17 to 1
c got solution with objective value: 14779224
c [startup+28.2977 s]  setting bit 16 to 1
c got solution with objective value: 14746456
c [startup+30.4136 s]  setting bit 15 to 1
c [startup+31.0686 s]  setting bit 14 to 0
c [startup+31.7456 s]  setting bit 13 to 0
c [startup+32.3963 s]  setting bit 12 to 0
c [startup+33.0531 s]  setting bit 11 to 0
c CONFLICT during preprocess 
c [startup+33.5248 s]  setting bit 10 to 0
c got solution with objective value: 14745944
c [startup+34.1996 s]  setting bit 9 to 1
c got solution with objective value: 14745688
c [startup+34.8692 s]  setting bit 8 to 1
c CONFLICT during preprocess 
c [startup+35.3469 s]  setting bit 7 to 0
c got solution with objective value: 14745624
c [startup+36.0195 s]  setting bit 6 to 1
c CONFLICT during preprocess 
c [startup+36.4964 s]  setting bit 5 to 0
c got solution with objective value: 14745608
c [startup+37.1665 s]  setting bit 4 to 1
c got solution with objective value: 14745600
c [startup+37.8327 s]  setting bit 3 to 1
c CONFLICT during preprocess 
c [startup+38.3081 s]  setting bit 2 to 0
c CONFLICT during preprocess 
c [startup+38.7739 s]  setting bit 1 to 0
c CONFLICT during preprocess 
c [startup+39.2395 s]  setting bit 0 to 0
s OPTIMUM FOUND
v -ANM1_bit0 ANM1_bit1 ANM1_bit2 -ANM1_bit3 -ANM1_bit4 -ANM2_bit0 ANM2_bit1 ANM2_bit2 -ANM2_bit3 -ANM2_bit4 -ANM3_bit0 -ANM3_bit1 -ANM3_bit2 -ANM3_bit3 ANM3_bit4 ANM4_bit0 ANM4_bit1 ANM4_bit2 -ANM4_bit3 -ANM4_bit4 -ANM5_bit0 -ANM5_bit1 ANM5_bit2 ANM5_bit3 -ANM5_bit4 -ANM6_bit0 -ANM6_bit1 -ANM6_bit2 -ANM6_bit3 -ANM6_bit4 -STM1_bit0 -STM1_bit1 -STM1_bit10 -STM1_bit11 -STM1_bit12 -STM1_bit13 -STM1_bit14 -STM1_bit15 -STM1_bit16 -STM1_bit17 -STM1_bit18 -STM1_bit19 STM1_bit2 STM1_bit3 STM1_bit4 STM1_bit5 -STM1_bit6 -STM1_bit7 -STM1_bit8 -STM1_bit9 -STM1_bit_1 -STM1_bit_10 -STM1_bit_2 -STM1_bit_3 -STM1_bit_4 -STM1_bit_5 -STM1_bit_6 -STM1_bit_7 -STM1_bit_8 -STM1_bit_9 STM2_bit0 STM2_bit1 -STM2_bit2 -STM2_bit3 -STM2_bit4 STM3_bit0 STM3_bit1 -STM3_bit2 -STM3_bit3 -STM3_bit4 STM4_bit0 -STM4_bit1 STM4_bit2 STM4_bit3 -STM4_bit4 STM5_bit0 -STM5_bit1 STM5_bit2 STM5_bit3 -STM5_bit4 -STM6_bit0 STM6_bit1 -STM6_bit2 -STM6_bit3 STM6_bit4 -UE1_bit0 -UE1_bit1 -UE1_bit10 -UE1_bit11 -UE1_bit12 -UE1_bit13 -UE1_bit14 -UE1_bit15 -UE1_bit16 -UE1_bit17 -UE1_bit18 -UE1_bit19 -UE1_bit2 -UE1_bit3 -UE1_bit4 -UE1_bit5 -UE1_bit6 -UE1_bit7 -UE1_bit8 -UE1_bit9 -UE1_bit_1 -UE1_bit_10 -UE1_bit_2 -UE1_bit_3 -UE1_bit_4 -UE1_bit_5 -UE1_bit_6 -UE1_bit_7 -UE1_bit_8 -UE1_bit_9 -UE2_bit0 -UE2_bit1 -UE2_bit10 -UE2_bit11 -UE2_bit12 -UE2_bit13 -UE2_bit14 -UE2_bit15 -UE2_bit16 -UE2_bit17 -UE2_bit18 -UE2_bit19 -UE2_bit2 UE2_bit3 UE2_bit4 -UE2_bit5 UE2_bit6 -UE2_bit7 -UE2_bit8 UE2_bit9 -UE2_bit_1 -UE2_bit_10 -UE2_bit_2 -UE2_bit_3 -UE2_bit_4 -UE2_bit_5 -UE2_bit_6 -UE2_bit_7 -UE2_bit_8 -UE2_bit_9 -UE3_bit0 -UE3_bit1 -UE3_bit10 -UE3_bit11 -UE3_bit12 -UE3_bit13 -UE3_bit14 -UE3_bit15 -UE3_bit16 -UE3_bit17 -UE3_bit18 -UE3_bit19 -UE3_bit2 UE3_bit3 UE3_bit4 -UE3_bit5 UE3_bit6 -UE3_bit7 -UE3_bit8 UE3_bit9 -UE3_bit_1 -UE3_bit_10 -UE3_bit_2 -UE3_bit_3 -UE3_bit_4 -UE3_bit_5 -UE3_bit_6 -UE3_bit_7 -UE3_bit_8 -UE3_bit_9 -UE4_bit0 -UE4_bit1 -UE4_bit10 -UE4_bit11 -UE4_bit12 -UE4_bit13 -UE4_bit14 -UE4_bit15 -UE4_bit16 -UE4_bit17 -UE4_bit18 -UE4_bit19 -UE4_bit2 UE4_bit3 -UE4_bit4 -UE4_bit5 UE4_bit6 UE4_bit7 -UE4_bit8 -UE4_bit9 -UE4_bit_1 -UE4_bit_10 -UE4_bit_2 -UE4_bit_3 -UE4_bit_4 -UE4_bit_5 -UE4_bit_6 -UE4_bit_7 -UE4_bit_8 -UE4_bit_9 -UE5_bit0 -UE5_bit1 -UE5_bit10 -UE5_bit11 -UE5_bit12 -UE5_bit13 -UE5_bit14 -UE5_bit15 -UE5_bit16 -UE5_bit17 -UE5_bit18 -UE5_bit19 -UE5_bit2 -UE5_bit3 -UE5_bit4 -UE5_bit5 -UE5_bit6 -UE5_bit7 -UE5_bit8 -UE5_bit9 -UE5_bit_1 -UE5_bit_10 -UE5_bit_2 -UE5_bit_3 -UE5_bit_4 -UE5_bit_5 -UE5_bit_6 -UE5_bit_7 -UE5_bit_8 -UE5_bit_9 -UE6_bit0 UE6_bit1 -UE6_bit10 -UE6_bit11 -UE6_bit12 -UE6_bit13 -UE6_bit14 -UE6_bit15 -UE6_bit16 -UE6_bit17 -UE6_bit18 -UE6_bit19 UE6_bit2 UE6_bit3 -UE6_bit4 UE6_bit5 UE6_bit6 UE6_bit7 -UE6_bit8 UE6_bit9 -UE6_bit_1 -UE6_bit_10 -UE6_bit_2 -UE6_bit_3 -UE6_bit_4 -UE6_bit_5 -UE6_bit_6 -UE6_bit_7 -UE6_bit_8 -UE6_bit_9

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/8578/stat): 8578 (pb2sat) R 8577 8578 4004 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21717838 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8578/statm): 373 2 364 364 0 9 0
[pid=8578] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-flugpl.opb

[startup+10.0014 s]
Raw data (loadavg): 0.92 0.97 0.95 2/55 8578
Raw data (/proc/8578/stat): 8578 (pb2sat) R 8577 8578 4004 0 -1 0 17947 0 0 0 949 47 0 0 25 0 1 0 21717838 49549312 9838 4294967295 134512640 135987407 3221224560 3221223360 134802471 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8578/statm): 12097 9838 364 364 0 11733 0
[pid=8578] vsize: 48388
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 48388

[startup+20.002 s]
Raw data (loadavg): 0.93 0.97 0.95 2/55 8578
Raw data (/proc/8578/stat): 8578 (pb2sat) R 8577 8578 4004 0 -1 0 19073 0 0 0 1939 52 0 0 25 0 1 0 21717838 52080640 10367 4294967295 134512640 135987407 3221224560 3221223104 134811805 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8578/statm): 12715 10367 364 364 0 12351 0
[pid=8578] vsize: 50860
Current children cumulated CPU time (s) 19.91
Current children cumulated vsize (Kb) 50860

[startup+30.0026 s]
Raw data (loadavg): 0.94 0.97 0.95 2/55 8578
Raw data (/proc/8578/stat): 8578 (pb2sat) R 8577 8578 4004 0 -1 0 20430 0 0 0 2933 56 0 0 25 0 1 0 21717838 52625408 10497 4294967295 134512640 135987407 3221224560 3221223104 134812166 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8578/statm): 12848 10497 364 364 0 12484 0
[pid=8578] vsize: 51392
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 51392
One traced child (pid=8578) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 39.4124
CPU time (s): 39.294
CPU user time (s): 38.6341
CPU system time (s): 0.659899
CPU usage (%): 99.6997
Max. virtual memory (cumulated for all children) (Kb): 51392

Verifier Data

Verifier:	OK	14745600