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/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-neos17.opb
MD5SUM0094639e675238eae16e44b5d375cf2e
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2269138
Optimality of the best value was proved NO
Number of terms in the objective function 1610
Biggest coefficient in the objective function 3457920
Number of bits for the biggest coefficient in the objective function 22
Sum of the numbers in the objective function 13794172
Number of bits of the sum of numbers in the objective function 24
Biggest number in a constraint 1638400000000
Number of bits of the biggest number in a constraint 41
Biggest sum of numbers in a constraint 39322360302947
Number of bits of the biggest sum of numbers46
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1228.72
Number of variables2300
Total number of constraints971
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)300
Number of constraints which are nor clauses,nor cardinality constraints671
Minimum length of a constraint1
Maximum length of a constraint520

Trace number 35731 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc15 THE 2005-05-28 13:57:42 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25037 boxname=wulflinc15 idbench=1509 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0094639e675238eae16e44b5d375cf2e  /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-13-7-neos17.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-13-7-neos17.opb
IDLAUNCH: 25037
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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		: 450.999
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:        710864 kB
Buffers:         34360 kB
Cached:         266820 kB
SwapCached:        604 kB
Active:          60416 kB
Inactive:       242872 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        710612 kB
SwapTotal:     2097136 kB
SwapFree:      2095616 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5120 kB
Slab:            14812 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:59:30 (client local time) WITH STATUS 1 IN 107.909 SECONDS
stats: 25037 7 107.909 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 2/54 4885
Raw data (stat): 4885 (runsolver) R 4884 23514 23513 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 807111960 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): 0.86 0.93 0.90 2/54 4885
Raw data (stat): 4885 (pb2sat) R 4884 23514 23513 0 -1 0 30158 0 0 0 932 67 0 0 25 0 1 0 807111960 90275840 19018 4294967295 134512640 135726644 3221224576 3220661264 134766602 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22040 19018 300 300 0 21740 0
vsize: 88160
[startup+20.0016 s]
Raw data (loadavg): 0.88 0.93 0.90 2/54 4885
Raw data (stat): 4885 (pb2sat) R 4884 23514 23513 0 -1 0 59590 0 0 0 1871 128 0 0 25 0 1 0 807111960 177315840 37225 4294967295 134512640 135726644 3221224576 3220666400 135105727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43290 37225 300 300 0 42990 0
vsize: 173160
[startup+30.0024 s]
Raw data (loadavg): 0.90 0.93 0.90 2/54 4885
Raw data (stat): 4885 (pb2sat) R 4884 23514 23513 0 -1 0 99377 0 0 0 2795 205 0 0 25 0 1 0 807111960 333012992 54826 4294967295 134512640 135726644 3221224576 3220656400 134780450 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 81302 54826 300 300 0 81002 0
vsize: 325208
[startup+40.0027 s]
Raw data (loadavg): 0.91 0.94 0.90 2/54 4885
Raw data (stat): 4885 (pb2sat) R 4884 23514 23513 0 -1 0 117553 0 0 0 3755 244 0 0 25 0 1 0 807111960 350179328 72755 4294967295 134512640 135726644 3221224576 3220678964 135287525 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85493 72755 300 300 0 85193 0
vsize: 341972
[startup+50.0031 s]
Raw data (loadavg): 0.93 0.94 0.90 2/54 4885
Raw data (stat): 4885 (pb2sat) R 4884 23514 23513 0 -1 0 163375 0 0 0 4671 329 0 0 25 0 1 0 807111960 563888128 117377 4294967295 134512640 135726644 3221224576 3220690160 134772474 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 137668 117377 300 300 0 137368 0
vsize: 550672
[startup+60.003 s]
Raw data (loadavg): 0.94 0.94 0.90 2/54 4885
Raw data (stat): 4885 (pb2sat) R 4884 23514 23513 0 -1 0 198345 0 0 0 5590 409 0 0 25 0 1 0 807111960 630992896 109172 4294967295 134512640 135726644 3221224576 3220674800 134780348 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154051 109172 300 300 0 153751 0
vsize: 616204
[startup+70.0041 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 4885
Raw data (stat): 4885 (pb2sat) R 4884 23514 23513 0 -1 0 211270 0 0 0 6565 435 0 0 25 0 1 0 807111960 630992896 121865 4294967295 134512640 135726644 3221224576 3220713200 135297953 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154051 121865 300 300 0 153751 0
vsize: 616204
[startup+80.0045 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 4885
Raw data (stat): 4885 (pb2sat) R 4884 23514 23513 0 -1 0 231808 0 0 0 7525 474 0 0 25 0 1 0 807111960 659648512 142165 4294967295 134512640 135726644 3221224576 3220696520 134554603 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161047 142165 300 300 0 160747 0
vsize: 644188
[startup+90.0043 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 4885
Raw data (stat): 4885 (pb2sat) R 4884 23514 23513 0 -1 0 249157 0 0 0 8489 511 0 0 25 0 1 0 807111960 734986240 159314 4294967295 134512640 135726644 3221224576 3220747792 135279150 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 179440 159314 300 300 0 179140 0
vsize: 717760
[startup+100.013 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 4885
Raw data (stat): 4885 (pb2sat) R 4884 23514 23513 0 -1 0 265732 0 0 0 9455 545 0 0 25 0 1 0 807111960 759418880 175699 4294967295 134512640 135726644 3221224576 3221222912 134604379 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185405 175699 300 300 0 185105 0
vsize: 741620
[startup+107.915 s]
Raw data (loadavg): 0.97 0.94 0.91 1/53 4885
Raw data (stat): 4885 (pb2sat) R 4884 23514 23513 0 -1 0 265732 0 0 0 9455 545 0 0 25 0 1 0 807111960 759418880 175699 4294967295 134512640 135726644 3221224576 3221222912 134604379 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185405 175699 300 300 0 185105 0
vsize: 0

Child status: 1
Real time (s): 107.915
CPU time (s): 107.909
CPU user time (s): 102.095
CPU system time (s): 5.81312
CPU usage (%): 99.9942
Max. virtual memory (Kb): 741620
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####