PB'05 competition: run trace

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:

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.
SOLVER DATA
This is the output of the solver (stdout and stderr).
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.
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

Name	normalized-opb/mps-v2-20-10/plato.asu.edu/pub/fctp/normalized-mps-v2-20-10-bk4x3.opb
MD5SUM	03cb86a701c2d8e08ff4c99e11fac5c4
Bench Category	optimization, big integers (OPTBIGINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	358400
Optimality of the best value was proved	NO
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 numbers	36
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	25.8571
Number of variables	372
Total number of constraints	19
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	0
Number of constraints which are nor clauses,nor cardinality constraints	19
Minimum length of a constraint	31
Maximum length of a constraint	120

Trace number 42556

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-16 10:49:09 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25776 boxname=wulflinc6 idbench=1076 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  03cb86a701c2d8e08ff4c99e11fac5c4  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-bk4x3.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-bk4x3.opb
IDLAUNCH: 25776
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        678308 kB
Buffers:         33784 kB
Cached:         300156 kB
SwapCached:       1028 kB
Active:          39444 kB
Inactive:       296656 kB
HighTotal:      131008 kB
HighFree:          392 kB
LowTotal:       903652 kB
LowFree:        677916 kB
SwapTotal:     2097136 kB
SwapFree:      2095200 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5092 kB
Slab:            14508 kB
Committed_AS:    63836 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 10:50:27 (client local time) WITH STATUS 30 IN 77.7342 SECONDS
stats: 25776 0 77.7342 30
#### END LAUNCHER DATA ####
#### BEGIN 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+0.995521 s]  setting bit 35 to 0
c CONFLICT during preprocess 
c [startup+1.05484 s]  setting bit 34 to 0
c CONFLICT during preprocess 
c [startup+1.11444 s]  setting bit 33 to 0
c CONFLICT during preprocess 
c [startup+1.17381 s]  setting bit 32 to 0
c CONFLICT during preprocess 
c [startup+1.23361 s]  setting bit 31 to 0
c CONFLICT during preprocess 
c [startup+1.29528 s]  setting bit 30 to 0
c CONFLICT during preprocess 
c [startup+1.35707 s]  setting bit 29 to 0
c CONFLICT during preprocess 
c [startup+1.41931 s]  setting bit 28 to 0
c CONFLICT during preprocess 
c [startup+1.48235 s]  setting bit 27 to 0
c CONFLICT during preprocess 
c [startup+1.5451 s]  setting bit 26 to 0
c CONFLICT during preprocess 
c [startup+1.6093 s]  setting bit 25 to 0
c CONFLICT during preprocess 
c [startup+1.67222 s]  setting bit 24 to 0
c CONFLICT during preprocess 
c [startup+1.73556 s]  setting bit 23 to 0
c CONFLICT during preprocess 
c [startup+1.79871 s]  setting bit 22 to 0
c CONFLICT during preprocess 
c [startup+1.86201 s]  setting bit 21 to 0
c CONFLICT during preprocess 
c [startup+1.92586 s]  setting bit 20 to 0
c CONFLICT during preprocess 
c [startup+1.99255 s]  setting bit 19 to 0
c [startup+4.37615 s]  setting bit 18 to 0
c got solution with objective value: 389120
c [startup+10.9771 s]  setting bit 17 to 1

c Decision: 3961/20870	Time: 4.54931/86400
c Decision: 3961/20870	Time: 8.03478/86400
c [startup+23.1202 s]  setting bit 16 to 0

c got solution with objective value: 358400
c [startup+26.4835 s]  setting bit 15 to 1

c Decision: 3899/20870	Time: 4.72228/86400
c [startup+40.2397 s]  setting bit 14 to 0

c Decision: 3808/20870	Time: 6.34004/86400
c Decision: 4004/20870	Time: 12.6891/86400
c [startup+59.5044 s]  setting bit 13 to 0

c got solution with objective value: 358400
c [startup+64.5944 s]  setting bit 12 to 1

c [startup+74.7887 s]  setting bit 11 to 0

c got solution with objective value: 358400
c [startup+74.9355 s]  setting bit 10 to 1

c [startup+76.6307 s]  setting bit 9 to 0

c got solution with objective value: 358400
c [startup+76.7681 s]  setting bit 8 to 1

c got solution with objective value: 358400
c [startup+76.8868 s]  setting bit 7 to 1
c CONFLICT during preprocess 

c [startup+76.9791 s]  setting bit 6 to 0
c CONFLICT during preprocess 

c [startup+77.0637 s]  setting bit 5 to 0
c CONFLICT during preprocess 

c [startup+77.149 s]  setting bit 4 to 0

c got solution with objective value: 358400
c [startup+77.2777 s]  setting bit 3 to 1

c got solution with objective value: 358400
c [startup+77.3957 s]  setting bit 2 to 1

c got solution with objective value: 358400
c [startup+77.5147 s]  setting bit 1 to 1

c got solution with objective value: 358400
c [startup+77.6335 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 
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.84 0.94 0.90 2/54 18950
Raw data (stat): 18950 (runsolver) R 18949 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 970167873 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0005 s]
Raw data (loadavg): 0.87 0.94 0.90 2/54 18950
Raw data (stat): 18950 (pb2sat-v2) R 18949 25568 25567 0 -1 0 4268 0 0 0 989 10 0 0 25 0 1 0 970167873 12787712 2186 4294967295 134512640 135730672 3221224576 3221222864 134747568 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3122 2186 301 301 0 2821 0
vsize: 12488
[startup+20.0014 s]
Raw data (loadavg): 0.89 0.94 0.90 2/54 18950
Raw data (stat): 18950 (pb2sat-v2) R 18949 25568 25567 0 -1 0 4528 0 0 0 1987 12 0 0 25 0 1 0 970167873 12922880 2323 4294967295 134512640 135730672 3221224576 3221222688 134732518 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3155 2323 301 301 0 2854 0
vsize: 12620
[startup+30.0011 s]
Raw data (loadavg): 0.90 0.94 0.90 2/54 18950
Raw data (stat): 18950 (pb2sat-v2) R 18949 25568 25567 0 -1 0 4757 0 0 0 2987 13 0 0 25 0 1 0 970167873 13074432 2470 4294967295 134512640 135730672 3221224576 3221222864 134747651 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3192 2470 301 301 0 2891 0
vsize: 12768
[startup+40.0007 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 18950
Raw data (stat): 18950 (pb2sat-v2) R 18949 25568 25567 0 -1 0 4883 0 0 0 3986 14 0 0 25 0 1 0 970167873 13361152 2555 4294967295 134512640 135730672 3221224576 3221222864 134747568 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3262 2555 301 301 0 2961 0
vsize: 13048
[startup+50.0008 s]
Raw data (loadavg): 0.93 0.94 0.90 2/54 18950
Raw data (stat): 18950 (pb2sat-v2) R 18949 25568 25567 0 -1 0 5037 0 0 0 4985 15 0 0 25 0 1 0 970167873 15458304 2627 4294967295 134512640 135730672 3221224576 3221222960 134763568 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3774 2627 301 301 0 3473 0
vsize: 15096
[startup+60.0006 s]
Raw data (loadavg): 0.94 0.95 0.90 2/54 18950
Raw data (stat): 18950 (pb2sat-v2) R 18949 25568 25567 0 -1 0 5216 0 0 0 5984 16 0 0 25 0 1 0 970167873 15613952 2724 4294967295 134512640 135730672 3221224576 3221222864 134747489 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3812 2724 301 301 0 3511 0
vsize: 15248
[startup+70.0014 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 18950
Raw data (stat): 18950 (pb2sat-v2) R 18949 25568 25567 0 -1 0 5419 0 0 0 6983 18 0 0 25 0 1 0 970167873 15749120 2886 4294967295 134512640 135730672 3221224576 3221222864 134747543 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3845 2886 301 301 0 3544 0
vsize: 15380
[startup+77.723 s]
Raw data (loadavg): 0.96 0.95 0.91 1/53 18950
Raw data (stat): 18950 (pb2sat-v2) R 18949 25568 25567 0 -1 0 5419 0 0 0 6983 18 0 0 25 0 1 0 970167873 15749120 2886 4294967295 134512640 135730672 3221224576 3221222864 134747543 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3845 2886 301 301 0 3544 0
vsize: 0

Child status: 30
Real time (s): 77.7225
CPU time (s): 77.7342
CPU user time (s): 77.5212
CPU system time (s): 0.212967
CPU usage (%): 100.015
Max. virtual memory (Kb): 15380
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	358400
#### END VERIFIER DATA ####