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/MIPLIB/miplib2003/normalized-mps-v2-13-7-mzzv42z.opb
MD5SUM	bc275113592d0f0914bb7f3c346a4153
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	-7060
Optimality of the best value was proved	NO
Number of terms in the objective function	714
Biggest coefficient in the objective function	559
Number of bits for the biggest coefficient in the objective function	10
Sum of the numbers in the objective function	66891
Number of bits of the sum of numbers in the objective function	17
Biggest number in a constraint	1117
Number of bits of the biggest number in a constraint	11
Biggest sum of numbers in a constraint	66891
Number of bits of the biggest sum of numbers	17
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1189.05
Number of variables	12596
Total number of constraints	22177
Number of constraints which are clauses	4
Number of constraints which are cardinality constraints (but not clauses)	17162
Number of constraints which are nor clauses,nor cardinality constraints	5011
Minimum length of a constraint	1
Maximum length of a constraint	80

Trace number 35593

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-05-28 13:27:42 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24898 boxname=wulflinc3 idbench=1370 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  bc275113592d0f0914bb7f3c346a4153  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-mzzv42z.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-mzzv42z.opb
IDLAUNCH: 24898
/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:        821720 kB
Buffers:         33800 kB
Cached:         157108 kB
SwapCached:        240 kB
Active:          54716 kB
Inactive:       138764 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        821468 kB
SwapTotal:     2097136 kB
SwapFree:      2096480 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6324 kB
Slab:            13820 kB
Committed_AS:    71792 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:29:26 (client local time) WITH STATUS 1 IN 102.955 SECONDS
stats: 24898 7 102.955 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc
#### 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): 0.83 0.93 0.90 1/54 29289
Raw data (stat): 29289 (runsolver) R 29288 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806930636 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+10.0058 s]
Raw data (loadavg): 0.86 0.93 0.90 2/54 29289
Raw data (stat): 29289 (pb2sat) R 29288 20224 20223 0 -1 0 28697 0 0 0 940 59 0 0 25 0 1 0 806930636 88018944 17571 4294967295 134512640 135726644 3221224576 3221063008 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21489 17571 300 300 0 21189 0
vsize: 85956
[startup+20.1147 s]
Raw data (loadavg): 0.88 0.94 0.90 2/54 29289
Raw data (stat): 29289 (pb2sat) R 29288 20224 20223 0 -1 0 59260 0 0 0 1888 122 0 0 25 0 1 0 806930636 176816128 36897 4294967295 134512640 135726644 3221224576 3221012480 134782642 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43168 36897 300 300 0 42868 0
vsize: 172672
[startup+30.1151 s]
Raw data (loadavg): 0.90 0.94 0.90 2/54 29289
Raw data (stat): 29289 (pb2sat) R 29288 20224 20223 0 -1 0 99255 0 0 0 2811 199 0 0 25 0 1 0 806930636 332648448 54704 4294967295 134512640 135726644 3221224576 3221160400 134780450 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 81213 54704 300 300 0 80913 0
vsize: 324852
[startup+40.1172 s]
Raw data (loadavg): 0.91 0.94 0.90 2/54 29289
Raw data (stat): 29289 (pb2sat) R 29288 20224 20223 0 -1 0 117969 0 0 0 3772 239 0 0 25 0 1 0 806930636 350625792 73166 4294967295 134512640 135726644 3221224576 3221064528 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85602 73168 300 300 0 85302 0
vsize: 342408
[startup+50.1168 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 29289
Raw data (stat): 29289 (pb2sat) R 29288 20224 20223 0 -1 0 163326 0 0 0 4681 329 0 0 25 0 1 0 806930636 563523584 117327 4294967295 134512640 135726644 3221224576 3221043760 134772474 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 137579 117327 300 300 0 137279 0
vsize: 550316
[startup+60.1169 s]
Raw data (loadavg): 0.94 0.94 0.90 2/54 29289
Raw data (stat): 29289 (pb2sat) R 29288 20224 20223 0 -1 0 198248 0 0 0 5605 405 0 0 25 0 1 0 806930636 630628352 109074 4294967295 134512640 135726644 3221224576 3221166400 134780450 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153962 109074 300 300 0 153662 0
vsize: 615848
[startup+70.1167 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 29289
Raw data (stat): 29289 (pb2sat) R 29288 20224 20223 0 -1 0 211810 0 0 0 6576 434 0 0 25 0 1 0 806930636 630898688 122399 4294967295 134512640 135726644 3221224576 3221023752 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154028 122399 300 300 0 153728 0
vsize: 616112
[startup+80.1173 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 29289
Raw data (stat): 29289 (pb2sat) R 29288 20224 20223 0 -1 0 233043 0 0 0 7536 475 0 0 25 0 1 0 806930636 660905984 143388 4294967295 134512640 135726644 3221224576 3221137464 135280652 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161354 143388 300 300 0 161054 0
vsize: 645416
[startup+90.1174 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 29289
Raw data (stat): 29289 (pb2sat) R 29288 20224 20223 0 -1 0 250322 0 0 0 8502 509 0 0 25 0 1 0 806930636 735838208 160469 4294967295 134512640 135726644 3221224576 3221207596 135298010 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 179648 160469 300 300 0 179348 0
vsize: 718592
[startup+100.123 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 29289
Raw data (stat): 29289 (pb2sat) R 29288 20224 20223 0 -1 0 266091 0 0 0 9469 543 0 0 25 0 1 0 806930636 759054336 176057 4294967295 134512640 135726644 3221224576 3221223008 135101181 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185316 176057 300 300 0 185016 0
vsize: 741264
[startup+102.987 s]
Raw data (loadavg): 0.97 0.95 0.91 1/53 29289
Raw data (stat): 29289 (pb2sat) R 29288 20224 20223 0 -1 0 266091 0 0 0 9469 543 0 0 25 0 1 0 806930636 759054336 176057 4294967295 134512640 135726644 3221224576 3221223008 135101181 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185316 176057 300 300 0 185016 0
vsize: 0

Child status: 1
Real time (s): 102.986
CPU time (s): 102.955
CPU user time (s): 97.1662
CPU system time (s): 5.78912
CPU usage (%): 99.9698
Max. virtual memory (Kb): 741264
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####