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).
  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

Namenormalized-opb/mps-v2-13-7/MIPLIB/miplib2003/normalized-mps-v2-13-7-air05.opb
MD5SUMa0fff131fa124ee4d61d9b3bf266a4ba
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 29628
Optimality of the best value was proved NO
Number of terms in the objective function 7195
Biggest coefficient in the objective function 2679
Number of bits for the biggest coefficient in the objective function 12
Sum of the numbers in the objective function 3908448
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 2679
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 3908448
Number of bits of the biggest sum of numbers22
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1175.15
Number of variables7195
Total number of constraints7621
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)7621
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint404

Trace number 42821 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 15:58:01 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26042 boxname=wulflinc1 idbench=1342 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a0fff131fa124ee4d61d9b3bf266a4ba  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-air05.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-air05.opb
IDLAUNCH: 26042
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        707264 kB
Buffers:         24292 kB
Cached:         278444 kB
SwapCached:       1156 kB
Active:          27568 kB
Inactive:       277448 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        707012 kB
SwapTotal:     2097136 kB
SwapFree:      2094896 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            16444 kB
Committed_AS:    92716 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 15:59:56 (client local time) WITH STATUS 1 IN 114.838 SECONDS
stats: 26042 7 114.838 1
#### 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: 45244
c big objective detected
c trying from 0 to 511

	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 0.95 0.91 2/55 22505
Raw data (stat): 22505 (runsolver) R 22504 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 915165164 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+10.0004 s]
Raw data (loadavg): 0.92 0.95 0.91 2/55 22505
Raw data (stat): 22505 (pb2sat-v2) R 22504 8378 8377 0 -1 0 13730 0 0 0 968 30 0 0 25 0 1 0 915165164 42377216 8024 4294967295 134512640 135730672 3221224576 3221223072 134747610 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 10346 8024 301 301 0 10045 0
vsize: 41384
[startup+20.0013 s]
Raw data (loadavg): 0.93 0.95 0.91 2/55 22505
Raw data (stat): 22505 (pb2sat-v2) R 22504 8378 8377 0 -1 0 27535 0 0 0 1939 59 0 0 25 0 1 0 915165164 88543232 16353 4294967295 134512640 135730672 3221224576 3220390404 135281187 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21617 16353 301 301 0 21316 0
vsize: 86468
[startup+30.0019 s]
Raw data (loadavg): 0.94 0.95 0.91 2/55 22505
Raw data (stat): 22505 (pb2sat-v2) R 22504 8378 8377 0 -1 0 55193 0 0 0 2880 117 0 0 25 0 1 0 915165164 174833664 32779 4294967295 134512640 135730672 3221224576 3220012700 134610838 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42684 32779 301 301 0 42383 0
vsize: 170736
[startup+40.0017 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 22505
Raw data (stat): 22505 (pb2sat-v2) R 22504 8378 8377 0 -1 0 81849 0 0 0 3826 172 0 0 25 0 1 0 915165164 245096448 50014 4294967295 134512640 135730672 3221224576 3219929160 134606737 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 59838 50014 301 301 0 59537 0
vsize: 239352
[startup+50.0025 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 22505
Raw data (stat): 22505 (pb2sat-v2) R 22504 8378 8377 0 -1 0 109108 0 0 0 4765 233 0 0 25 0 1 0 915165164 346824704 64758 4294967295 134512640 135730672 3221224576 3219059532 134607984 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84674 64759 301 301 0 84373 0
vsize: 338696
[startup+60.0023 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 22505
Raw data (stat): 22505 (pb2sat-v2) R 22504 8378 8377 0 -1 0 150075 0 0 0 5693 305 0 0 25 0 1 0 915165164 549314560 104534 4294967295 134512640 135730672 3221224576 3219980188 135284036 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 134110 104534 301 301 0 133809 0
vsize: 536440
[startup+70.0031 s]
Raw data (loadavg): 1.05 0.97 0.92 2/55 22505
Raw data (stat): 22505 (pb2sat-v2) R 22504 8378 8377 0 -1 0 161184 0 0 0 6664 334 0 0 25 0 1 0 915165164 482201600 96994 4294967295 134512640 135730672 3221224576 3218647608 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 117725 96994 301 301 0 117424 0
vsize: 470900
[startup+80.0028 s]
Raw data (loadavg): 1.04 0.97 0.92 2/55 22505
Raw data (stat): 22505 (pb2sat-v2) R 22504 8378 8377 0 -1 0 198698 0 0 0 7580 418 0 0 25 0 1 0 915165164 593002496 109709 4294967295 134512640 135730672 3221224576 3219182600 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 144776 109709 301 301 0 144475 0
vsize: 579104
[startup+90.0026 s]
Raw data (loadavg): 1.03 0.97 0.92 2/55 22505
Raw data (stat): 22505 (pb2sat-v2) R 22504 8378 8377 0 -1 0 215048 0 0 0 8544 455 0 0 25 0 1 0 915165164 652103680 125845 4294967295 134512640 135730672 3221224576 3219392560 135284080 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 159205 125845 301 301 0 158904 0
vsize: 636820
[startup+100.002 s]
Raw data (loadavg): 1.03 0.97 0.92 2/55 22505
Raw data (stat): 22505 (pb2sat-v2) R 22504 8378 8377 0 -1 0 233985 0 0 0 9507 492 0 0 25 0 1 0 915165164 681705472 144537 4294967295 134512640 135730672 3221224576 3220949504 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 166432 144539 301 301 0 166131 0
vsize: 665728
[startup+110.002 s]
Raw data (loadavg): 1.02 0.97 0.92 2/55 22505
Raw data (stat): 22505 (pb2sat-v2) R 22504 8378 8377 0 -1 0 244713 0 0 0 10484 515 0 0 25 0 1 0 915165164 701407232 155108 4294967295 134512640 135730672 3221224576 3221222828 135281209 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171242 155108 301 301 0 170941 0
vsize: 684968
[startup+114.842 s]
Raw data (loadavg): 1.02 0.97 0.92 1/54 22505
Raw data (stat): 22505 (pb2sat-v2) R 22504 8378 8377 0 -1 0 244713 0 0 0 10484 515 0 0 25 0 1 0 915165164 701407232 155108 4294967295 134512640 135730672 3221224576 3221222828 135281209 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171242 155108 301 301 0 170941 0
vsize: 0

Child status: 1
Real time (s): 114.842
CPU time (s): 114.838
CPU user time (s): 109.378
CPU system time (s): 5.45917
CPU usage (%): 99.9964
Max. virtual memory (Kb): 684968
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####