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-v2-13-7/plato.asu.edu/pub/fctp/normalized-mps-v2-13-7-bk4x3.opb
MD5SUM	c2339539ffa69702e62053614fe34ce1
Bench Category	optimization, medium integers (OPTMEDINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	44800
Optimality of the best value was proved	NO
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 numbers	26
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	24.1133
Number of variables	252
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	21
Maximum length of a constraint	80

Trace number 42940

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 19:12:50 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26160 boxname=wulflinc3 idbench=1460 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  c2339539ffa69702e62053614fe34ce1  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-bk4x3.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-bk4x3.opb
IDLAUNCH: 26160
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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:        741592 kB
Buffers:         24388 kB
Cached:         246912 kB
SwapCached:        768 kB
Active:          35828 kB
Inactive:       237624 kB
HighTotal:      131008 kB
HighFree:        10276 kB
LowTotal:       903652 kB
LowFree:        731316 kB
SwapTotal:     2097136 kB
SwapFree:      2095372 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            13924 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 19:14:02 (client local time) WITH STATUS 30 IN 71.7411 SECONDS
stats: 26160 0 71.7411 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: 67936
c small objective detected
c CONFLICT during preprocess 
c [startup+0.826453 s]  setting bit 25 to 0
c CONFLICT during preprocess 
c [startup+0.876297 s]  setting bit 24 to 0
c CONFLICT during preprocess 
c [startup+0.925661 s]  setting bit 23 to 0
c CONFLICT during preprocess 
c [startup+0.975357 s]  setting bit 22 to 0
c CONFLICT during preprocess 
c [startup+1.02483 s]  setting bit 21 to 0
c CONFLICT during preprocess 
c [startup+1.07595 s]  setting bit 20 to 0
c CONFLICT during preprocess 
c [startup+1.12726 s]  setting bit 19 to 0
c CONFLICT during preprocess 
c [startup+1.1791 s]  setting bit 18 to 0
c CONFLICT during preprocess 
c [startup+1.2307 s]  setting bit 17 to 0
c CONFLICT during preprocess 
c [startup+1.28629 s]  setting bit 16 to 0
c [startup+3.82392 s]  setting bit 15 to 0
c got solution with objective value: 51200
c [startup+3.9261 s]  setting bit 14 to 1
c [startup+17.9653 s]  setting bit 13 to 0
c got solution with objective value: 44800
c [startup+22.6906 s]  setting bit 12 to 1
c got solution with objective value: 44800
c [startup+25.0121 s]  setting bit 11 to 1

c Decision: 2993/16848	Time: 7.2229/86400
c Decision: 3211/16848	Time: 13.447/86400
c [startup+41.2157 s]  setting bit 10 to 0

c got solution with objective value: 44800
c [startup+43.6605 s]  setting bit 9 to 1

c Decision: 3326/16848	Time: 8.40672/86400
c [startup+56.7394 s]  setting bit 8 to 0

c [startup+65.0224 s]  setting bit 7 to 0

c got solution with objective value: 44800
c [startup+69.7481 s]  setting bit 6 to 1
c CONFLICT during preprocess 

c [startup+69.83 s]  setting bit 5 to 0

c got solution with objective value: 44800
c [startup+71.2803 s]  setting bit 4 to 1

c got solution with objective value: 44800
c [startup+71.3797 s]  setting bit 3 to 1

c got solution with objective value: 44800
c [startup+71.4788 s]  setting bit 2 to 1

c got solution with objective value: 44800
c [startup+71.578 s]  setting bit 1 to 1

c got solution with objective value: 44800
c [startup+71.6769 s]  setting bit 0 to 1
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 
#### 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): 0.91 0.95 0.90 2/54 28391
Raw data (stat): 28391 (runsolver) R 28390 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 973182171 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+10.0003 s]
Raw data (loadavg): 0.92 0.96 0.91 2/54 28391
Raw data (stat): 28391 (pb2sat-v2) R 28390 20224 20223 0 -1 0 3228 0 0 0 991 7 0 0 25 0 1 0 973182171 10502144 1867 4294967295 134512640 135730672 3221224576 3221223056 134748449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 2564 1867 301 301 0 2263 0
vsize: 10256
[startup+20.001 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 28391
Raw data (stat): 28391 (pb2sat-v2) R 28390 20224 20223 0 -1 0 3735 0 0 0 1988 10 0 0 25 0 1 0 973182171 12075008 1956 4294967295 134512640 135730672 3221224576 3221222688 134732452 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 2948 1956 301 301 0 2647 0
vsize: 11792
[startup+30.0023 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 28391
Raw data (stat): 28391 (pb2sat-v2) R 28390 20224 20223 0 -1 0 3919 0 0 0 2987 11 0 0 25 0 1 0 973182171 12369920 2074 4294967295 134512640 135730672 3221224576 3221222864 134747541 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3020 2074 301 301 0 2719 0
vsize: 12080
[startup+40.0031 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 28391
Raw data (stat): 28391 (pb2sat-v2) R 28390 20224 20223 0 -1 0 4041 0 0 0 3986 13 0 0 25 0 1 0 973182171 12369920 2130 4294967295 134512640 135730672 3221224576 3221222864 134747892 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3020 2130 301 301 0 2719 0
vsize: 12080
[startup+50.0035 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 28391
Raw data (stat): 28391 (pb2sat-v2) R 28390 20224 20223 0 -1 0 4224 0 0 0 4985 14 0 0 25 0 1 0 973182171 14602240 2247 4294967295 134512640 135730672 3221224576 3221222864 134747751 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3565 2247 301 301 0 3264 0
vsize: 14260
[startup+60.0038 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 28391
Raw data (stat): 28391 (pb2sat-v2) R 28390 20224 20223 0 -1 0 4339 0 0 0 5984 14 0 0 25 0 1 0 973182171 14733312 2296 4294967295 134512640 135730672 3221224576 3221222912 134740310 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3597 2296 301 301 0 3296 0
vsize: 14388
[startup+70.0046 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 28391
Raw data (stat): 28391 (pb2sat-v2) R 28390 20224 20223 0 -1 0 4566 0 0 0 6983 16 0 0 25 0 1 0 973182171 14884864 2424 4294967295 134512640 135730672 3221224576 3221223056 134748499 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3634 2424 301 301 0 3333 0
vsize: 14536
[startup+71.7527 s]
Raw data (loadavg): 0.97 0.96 0.91 1/53 28391
Raw data (stat): 28391 (pb2sat-v2) R 28390 20224 20223 0 -1 0 4566 0 0 0 6983 16 0 0 25 0 1 0 973182171 14884864 2424 4294967295 134512640 135730672 3221224576 3221223056 134748499 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3634 2424 301 301 0 3333 0
vsize: 0

Child status: 30
Real time (s): 71.7524
CPU time (s): 71.7411
CPU user time (s): 71.5681
CPU system time (s): 0.172973
CPU usage (%): 99.9842
Max. virtual memory (Kb): 14536
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	44800
#### END VERIFIER DATA ####