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/MIPLIB/miplib3/normalized-mps-v2-20-10-p2756.opb
MD5SUM	49fba7b1c2f3e65c53f8418d126e3ec3
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	4605
Optimality of the best value was proved	NO
Number of terms in the objective function	2166
Biggest coefficient in the objective function	11000
Number of bits for the biggest coefficient in the objective function	14
Sum of the numbers in the objective function	321831
Number of bits of the sum of numbers in the objective function	19
Biggest number in a constraint	11000
Number of bits of the biggest number in a constraint	14
Biggest sum of numbers in a constraint	321831
Number of bits of the biggest sum of numbers	19
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1.06684
Number of variables	2756
Total number of constraints	3511
Number of constraints which are clauses	132
Number of constraints which are cardinality constraints (but not clauses)	2976
Number of constraints which are nor clauses,nor cardinality constraints	403
Minimum length of a constraint	1
Maximum length of a constraint	546

Trace number 35276

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc27 THE 2005-05-28 12:38:56 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24586 boxname=wulflinc27 idbench=1058 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  49fba7b1c2f3e65c53f8418d126e3ec3  /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-p2756.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-p2756.opb
IDLAUNCH: 24586
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
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		: 451.169
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:        716560 kB
Buffers:         34216 kB
Cached:         253672 kB
SwapCached:        704 kB
Active:          20700 kB
Inactive:       269288 kB
HighTotal:      131008 kB
HighFree:        47628 kB
LowTotal:       903652 kB
LowFree:        668932 kB
SwapTotal:     2097892 kB
SwapFree:      2096316 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5128 kB
Slab:            22488 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:40:42 (client local time) WITH STATUS 1 IN 106.174 SECONDS
stats: 24586 7 106.174 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): 0.90 0.93 0.90 2/54 19994
Raw data (stat): 19994 (runsolver) R 19993 3394 3393 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864861286 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0008 s]
Raw data (loadavg): 0.92 0.93 0.90 2/54 19994
Raw data (stat): 19994 (pb2sat) R 19993 3394 3393 0 -1 0 29433 0 0 0 934 64 0 0 25 0 1 0 864861286 90013696 18298 4294967295 134512640 135726644 3221224576 3220939996 135297967 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21976 18298 300 300 0 21676 0
vsize: 87904
[startup+20.0011 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 19994
Raw data (stat): 19994 (pb2sat) R 19993 3394 3393 0 -1 0 58024 0 0 0 1872 127 0 0 25 0 1 0 864861286 175837184 35676 4294967295 134512640 135726644 3221224576 3220623600 135284704 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42929 35676 300 300 0 42629 0
vsize: 171716
[startup+30.0025 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 19994
Raw data (stat): 19994 (pb2sat) R 19993 3394 3393 0 -1 0 98629 0 0 0 2787 212 0 0 25 0 1 0 864861286 299737088 54086 4294967295 134512640 135726644 3221224576 3220646560 134773418 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73178 54086 300 300 0 72878 0
vsize: 292712
[startup+40.0023 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 19994
Raw data (stat): 19994 (pb2sat) R 19993 3394 3393 0 -1 0 115137 0 0 0 3752 248 0 0 25 0 1 0 864861286 348160000 70366 4294967295 134512640 135726644 3221224576 3220760928 134554772 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85000 70366 300 300 0 84700 0
vsize: 340000
[startup+50.0036 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 19994
Raw data (stat): 19994 (pb2sat) R 19993 3394 3393 0 -1 0 149438 0 0 0 4687 313 0 0 25 0 1 0 864861286 543080448 103904 4294967295 134512640 135726644 3221224576 3220721276 135287584 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 132588 103904 300 300 0 132288 0
vsize: 530352
[startup+60.0039 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 19994
Raw data (stat): 19994 (pb2sat) R 19993 3394 3393 0 -1 0 196221 0 0 0 5591 409 0 0 25 0 1 0 864861286 597852160 107077 4294967295 134512640 135726644 3221224576 3221017728 134554559 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 145960 107077 300 300 0 145660 0
vsize: 583840
[startup+70.0038 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 19994
Raw data (stat): 19994 (pb2sat) R 19993 3394 3393 0 -1 0 207929 0 0 0 6562 438 0 0 25 0 1 0 864861286 631406592 118579 4294967295 134512640 135726644 3221224576 3220832208 135280416 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154152 118579 300 300 0 153852 0
vsize: 616608
[startup+80.0051 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 19994
Raw data (stat): 19994 (pb2sat) R 19993 3394 3393 0 -1 0 227176 0 0 0 7521 479 0 0 25 0 1 0 864861286 655060992 137587 4294967295 134512640 135726644 3221224576 3220621864 135280645 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 159927 137587 300 300 0 159627 0
vsize: 639708
[startup+90.0045 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 19994
Raw data (stat): 19994 (pb2sat) R 19993 3394 3393 0 -1 0 243928 0 0 0 8487 513 0 0 25 0 1 0 864861286 729317376 154146 4294967295 134512640 135726644 3221224576 3220899548 135287438 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 178056 154146 300 300 0 177756 0
vsize: 712224
[startup+100.005 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 19994
Raw data (stat): 19994 (pb2sat) R 19993 3394 3393 0 -1 0 264164 0 0 0 9445 555 0 0 25 0 1 0 864861286 757972992 174149 4294967295 134512640 135726644 3221224576 3220616232 135280958 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185052 174149 300 300 0 184752 0
vsize: 740208
[startup+106.169 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 19994
Raw data (stat): 19994 (pb2sat) R 19993 3394 3393 0 -1 0 264164 0 0 0 9445 555 0 0 25 0 1 0 864861286 757972992 174149 4294967295 134512640 135726644 3221224576 3220616232 135280958 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185052 174149 300 300 0 184752 0
vsize: 0

Child status: 1
Real time (s): 106.169
CPU time (s): 106.174
CPU user time (s): 100.241
CPU system time (s): 5.9331
CPU usage (%): 100.004
Max. virtual memory (Kb): 740208
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####