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-fit1p.opb
MD5SUM0417a8bac185d4a033d4915882b274ef
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 30780
Biggest coefficient in the objective function 1610612736
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 1591285381686
Number of bits of the sum of numbers in the objective function 41
Biggest number in a constraint 59431609958400
Number of bits of the biggest number in a constraint 46
Biggest sum of numbers in a constraint 209844586667159
Number of bits of the biggest sum of numbers48
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.394938
Number of variables45485
Total number of constraints1026
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 constraints1026
Minimum length of a constraint17
Maximum length of a constraint619

Trace number 35047 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc24 THE 2005-05-28 12:05:18 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24359 boxname=wulflinc24 idbench=831 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0417a8bac185d4a033d4915882b274ef  /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-fit1p.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-fit1p.opb
IDLAUNCH: 24359
/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:        696304 kB
Buffers:         36200 kB
Cached:         279432 kB
SwapCached:        636 kB
Active:          32764 kB
Inactive:       285016 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        696052 kB
SwapTotal:     2097892 kB
SwapFree:      2096360 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5148 kB
Slab:            14840 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:07:27 (client local time) WITH STATUS 1 IN 128.625 SECONDS
stats: 24359 7 128.625 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 20009
Raw data (stat): 20009 (runsolver) R 20008 4613 4612 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864663036 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): 0.91 0.93 0.90 2/54 20009
Raw data (stat): 20009 (pb2sat) R 20008 4613 4612 0 -1 0 2227 0 0 0 993 5 0 0 25 0 1 0 864663036 8089600 1551 4294967295 134512640 135726644 3221224576 3221221664 134556171 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 1975 1551 300 300 0 1675 0
vsize: 7900
[startup+20.0017 s]
Raw data (loadavg): 0.93 0.93 0.91 2/54 20009
Raw data (stat): 20009 (pb2sat) R 20008 4613 4612 0 -1 0 6998 0 0 0 1982 16 0 0 25 0 1 0 864663036 24952832 5571 4294967295 134512640 135726644 3221224576 3212779664 134739191 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 6092 5571 300 300 0 5792 0
vsize: 24368
[startup+30.0018 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 20009
Raw data (stat): 20009 (pb2sat) R 20008 4613 4612 0 -1 0 41910 0 0 0 2900 98 0 0 25 0 1 0 864663036 155631616 30498 4294967295 134512640 135726644 3221224576 3209252160 134771720 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 37996 30500 300 300 0 37696 0
vsize: 151984
[startup+40.0025 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 20009
Raw data (stat): 20009 (pb2sat) R 20008 4613 4612 0 -1 0 64871 0 0 0 3846 152 0 0 25 0 1 0 864663036 197013504 42469 4294967295 134512640 135726644 3221224576 3209123664 134767064 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 48099 42469 300 300 0 47799 0
vsize: 192396
[startup+50.0033 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 20009
Raw data (stat): 20009 (pb2sat) R 20008 4613 4612 0 -1 0 103674 0 0 0 4761 237 0 0 25 0 1 0 864663036 347709440 59083 4294967295 134512640 135726644 3221224576 3209332800 134780348 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84890 59083 300 300 0 84590 0
vsize: 339560
[startup+60.0029 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 20011
Raw data (stat): 20009 (pb2sat) R 20008 4613 4612 0 -1 0 121095 0 0 0 5721 278 0 0 25 0 1 0 864663036 367173632 76283 4294967295 134512640 135726644 3221224576 3210916552 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 89642 76283 300 300 0 89342 0
vsize: 358568
[startup+70.0039 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 20011
Raw data (stat): 20009 (pb2sat) R 20008 4613 4612 0 -1 0 165615 0 0 0 6632 367 0 0 25 0 1 0 864663036 578854912 119617 4294967295 134512640 135726644 3221224576 3210804132 135101157 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 141322 119617 300 300 0 141022 0
vsize: 565288
[startup+80.0046 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 20011
Raw data (stat): 20009 (pb2sat) R 20008 4613 4612 0 -1 0 200857 0 0 0 7547 452 0 0 25 0 1 0 864663036 612405248 111678 4294967295 134512640 135726644 3221224576 3209367280 134782666 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 149513 111678 300 300 0 149213 0
vsize: 598052
[startup+90.004 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 20011
Raw data (stat): 20009 (pb2sat) R 20008 4613 4612 0 -1 0 212566 0 0 0 8519 480 0 0 25 0 1 0 864663036 645959680 123181 4294967295 134512640 135726644 3221224576 3209585996 135298008 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157705 123182 300 300 0 157405 0
vsize: 630820
[startup+100.004 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 20011
Raw data (stat): 20009 (pb2sat) R 20008 4613 4612 0 -1 0 231900 0 0 0 9477 523 0 0 25 0 1 0 864663036 671776768 142286 4294967295 134512640 135726644 3221224576 3209631328 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 164008 142286 300 300 0 163708 0
vsize: 656032
[startup+110.003 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 20011
Raw data (stat): 20009 (pb2sat) R 20008 4613 4612 0 -1 0 247926 0 0 0 10440 560 0 0 25 0 1 0 864663036 744816640 158129 4294967295 134512640 135726644 3221224576 3209600400 134780435 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 181840 158129 300 300 0 181540 0
vsize: 727360
[startup+120.003 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 20011
Raw data (stat): 20009 (pb2sat) R 20008 4613 4612 0 -1 0 267327 0 0 0 11399 601 0 0 25 0 1 0 864663036 772390912 177307 4294967295 134512640 135726644 3221224576 3209622528 134554700 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 188572 177308 300 300 0 188272 0
vsize: 754288
[startup+128.624 s]
Raw data (loadavg): 1.07 0.97 0.91 1/53 20011
Raw data (stat): 20009 (pb2sat) R 20008 4613 4612 0 -1 0 267327 0 0 0 11399 601 0 0 25 0 1 0 864663036 772390912 177307 4294967295 134512640 135726644 3221224576 3209622528 134554700 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 188572 177308 300 300 0 188272 0
vsize: 0

Child status: 1
Real time (s): 128.624
CPU time (s): 128.625
CPU user time (s): 122.215
CPU system time (s): 6.41002
CPU usage (%): 100.001
Max. virtual memory (Kb): 754288
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####