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-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-grow15.opb
MD5SUM18d2e7037e36eb0868942f66e3c0ecc5
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 1335
Biggest coefficient in the objective function 3758096384
Number of bits for the biggest coefficient in the objective function 32
Sum of the numbers in the objective function 154618822482
Number of bits of the sum of numbers in the objective function 38
Biggest number in a constraint 878188741787648
Number of bits of the biggest number in a constraint 50
Biggest sum of numbers in a constraint 4550739094651140
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1252.68
Number of variables17130
Total number of constraints900
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints900
Minimum length of a constraint22
Maximum length of a constraint491

Trace number 35055 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc24 THE 2005-05-28 12:07:36 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24367 boxname=wulflinc24 idbench=839 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  18d2e7037e36eb0868942f66e3c0ecc5  /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-grow15.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-grow15.opb
IDLAUNCH: 24367
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.080
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	: 3
cpu MHz		: 451.080
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:        721728 kB
Buffers:         35896 kB
Cached:         254644 kB
SwapCached:        636 kB
Active:          22356 kB
Inactive:       270232 kB
HighTotal:      131008 kB
HighFree:         7420 kB
LowTotal:       903652 kB
LowFree:        714308 kB
SwapTotal:     2097892 kB
SwapFree:      2096360 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5148 kB
Slab:            14480 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:09:27 (client local time) WITH STATUS 1 IN 111.524 SECONDS
stats: 24367 7 111.524 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 20104
Raw data (stat): 20104 (runsolver) R 20103 4613 4612 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864676759 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+10.0006 s]
Raw data (loadavg): 0.92 0.93 0.90 2/54 20104
Raw data (stat): 20104 (pb2sat) R 20103 4613 4612 0 -1 0 32007 0 0 0 926 72 0 0 25 0 1 0 864676759 92430336 20846 4294967295 134512640 135726644 3221224576 3221004656 134560375 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22566 20846 300 300 0 22266 0
vsize: 90264
[startup+20.0009 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 20104
Raw data (stat): 20104 (pb2sat) R 20103 4613 4612 0 -1 0 59567 0 0 0 1864 134 0 0 25 0 1 0 864676759 175476736 37192 4294967295 134512640 135726644 3221224576 3221221024 134767027 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42841 37192 300 300 0 42541 0
vsize: 171364
[startup+30.002 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 20104
Raw data (stat): 20104 (pb2sat) R 20103 4613 4612 0 -1 0 93105 0 0 0 2796 202 0 0 25 0 1 0 864676759 272007168 49036 4294967295 134512640 135726644 3221224576 3221134352 134605196 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 66408 49036 300 300 0 66108 0
vsize: 265632
[startup+40.0016 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 20104
Raw data (stat): 20104 (pb2sat) R 20103 4613 4612 0 -1 0 110337 0 0 0 3761 237 0 0 25 0 1 0 864676759 326987776 66039 4294967295 134512640 135726644 3221224576 3221135576 135280592 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 79831 66039 300 300 0 79531 0
vsize: 319324
[startup+50.0017 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 20104
Raw data (stat): 20104 (pb2sat) R 20103 4613 4612 0 -1 0 153375 0 0 0 4684 314 0 0 25 0 1 0 864676759 535474176 107890 4294967295 134512640 135726644 3221224576 3221137904 134772474 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 130731 107890 300 300 0 130431 0
vsize: 522924
[startup+60.002 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 20104
Raw data (stat): 20104 (pb2sat) R 20103 4613 4612 0 -1 0 187318 0 0 0 5608 390 0 0 25 0 1 0 864676759 573222912 99692 4294967295 134512640 135726644 3221224576 3221138544 135297953 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 139947 99692 300 300 0 139647 0
vsize: 559788
[startup+70.0017 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 20104
Raw data (stat): 20104 (pb2sat) R 20103 4613 4612 0 -1 0 197917 0 0 0 6586 412 0 0 25 0 1 0 864676759 606777344 110093 4294967295 134512640 135726644 3221224576 3221136896 134557130 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 148139 110094 300 300 0 147839 0
vsize: 592556
[startup+80.0027 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 20104
Raw data (stat): 20104 (pb2sat) R 20103 4613 4612 0 -1 0 215637 0 0 0 7552 446 0 0 25 0 1 0 864676759 629547008 127586 4294967295 134512640 135726644 3221224576 3221137896 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153698 127586 300 300 0 153398 0
vsize: 614792
[startup+90.0021 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 20104
Raw data (stat): 20104 (pb2sat) R 20103 4613 4612 0 -1 0 234457 0 0 0 8515 484 0 0 25 0 1 0 864676759 657690624 146182 4294967295 134512640 135726644 3221224576 3221137000 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160569 146183 300 300 0 160269 0
vsize: 642276
[startup+100.002 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 20104
Raw data (stat): 20104 (pb2sat) R 20103 4613 4612 0 -1 0 249074 0 0 0 9482 517 0 0 25 0 1 0 864676759 729804800 160626 4294967295 134512640 135726644 3221224576 3221139744 135284769 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 178175 160627 300 300 0 177875 0
vsize: 712700
[startup+110.01 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 20104
Raw data (stat): 20104 (pb2sat) R 20103 4613 4612 0 -1 0 253016 0 0 0 10460 539 0 0 25 0 1 0 864676759 374878208 91024 4294967295 134512640 135726644 3221224576 3221222976 134778976 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 91523 91024 300 300 0 91223 0
vsize: 366092
[startup+111.536 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 20104
Raw data (stat): 20104 (pb2sat) R 20103 4613 4612 0 -1 0 253016 0 0 0 10460 539 0 0 25 0 1 0 864676759 374878208 91024 4294967295 134512640 135726644 3221224576 3221222976 134778976 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 91523 91024 300 300 0 91223 0
vsize: 0

Child status: 1
Real time (s): 111.536
CPU time (s): 111.524
CPU user time (s): 105.934
CPU system time (s): 5.59015
CPU usage (%): 99.9895
Max. virtual memory (Kb): 712700
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####