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-bandm.opb
MD5SUM91d5c8ee9bf634f10149ce0f1ab46e94
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 4710
Biggest coefficient in the objective function 53687091200000
Number of bits for the biggest coefficient in the objective function 46
Sum of the numbers in the objective function 4557677556349764
Number of bits of the sum of numbers in the objective function 53
Biggest number in a constraint 111669149696000
Number of bits of the biggest number in a constraint 47
Biggest sum of numbers in a constraint 4557677556349764
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.12498
Number of variables14160
Total number of constraints305
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 constraints305
Minimum length of a constraint30
Maximum length of a constraint2100

Trace number 35027 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc24 THE 2005-05-28 12:01:08 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24337 boxname=wulflinc24 idbench=809 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  91d5c8ee9bf634f10149ce0f1ab46e94  /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-bandm.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-bandm.opb
IDLAUNCH: 24337
/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:        725324 kB
Buffers:         36168 kB
Cached:         250972 kB
SwapCached:        636 kB
Active:          26692 kB
Inactive:       262520 kB
HighTotal:      131008 kB
HighFree:        27328 kB
LowTotal:       903652 kB
LowFree:        697996 kB
SwapTotal:     2097892 kB
SwapFree:      2096360 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5148 kB
Slab:            14472 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:03:02 (client local time) WITH STATUS 1 IN 114.21 SECONDS
stats: 24337 7 114.21 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): 0.93 0.95 0.91 2/54 19821
Raw data (stat): 19821 (runsolver) R 19820 4613 4612 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864637991 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0007 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 19823
Raw data (stat): 19821 (pb2sat) R 19820 4613 4612 0 -1 0 28902 0 0 0 937 62 0 0 25 0 1 0 864637991 90542080 17772 4294967295 134512640 135726644 3221224576 3219334632 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22105 17772 300 300 0 21805 0
vsize: 88420
[startup+20.0009 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 19823
Raw data (stat): 19821 (pb2sat) R 19820 4613 4612 0 -1 0 57347 0 0 0 1876 123 0 0 25 0 1 0 864637991 176771072 35002 4294967295 134512640 135726644 3221224576 3219347456 134560174 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43157 35002 300 300 0 42857 0
vsize: 172628
[startup+30.0016 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 19823
Raw data (stat): 19821 (pb2sat) R 19820 4613 4612 0 -1 0 97220 0 0 0 2795 205 0 0 25 0 1 0 864637991 300130304 52688 4294967295 134512640 135726644 3221224576 3219348480 134782666 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73274 52688 300 300 0 72974 0
vsize: 293096
[startup+40.0017 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 19823
Raw data (stat): 19821 (pb2sat) R 19820 4613 4612 0 -1 0 113030 0 0 0 3762 237 0 0 25 0 1 0 864637991 347607040 68271 4294967295 134512640 135726644 3221224576 3219353692 134604451 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84865 68271 300 300 0 84565 0
vsize: 339460
[startup+50.002 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 19823
Raw data (stat): 19821 (pb2sat) R 19820 4613 4612 0 -1 0 142538 0 0 0 4708 291 0 0 25 0 1 0 864637991 535261184 97197 4294967295 134512640 135726644 3221224576 3219350960 134771647 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 130679 97197 300 300 0 130379 0
vsize: 522716
[startup+60.0017 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 19823
Raw data (stat): 19821 (pb2sat) R 19820 4613 4612 0 -1 0 192759 0 0 0 5608 391 0 0 25 0 1 0 864637991 597061632 103642 4294967295 134512640 135726644 3221224576 3219344892 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145767 103642 300 300 0 145467 0
vsize: 583068
[startup+70.0028 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 19823
Raw data (stat): 19821 (pb2sat) R 19820 4613 4612 0 -1 0 203953 0 0 0 6589 411 0 0 25 0 1 0 864637991 630616064 114633 4294967295 134512640 135726644 3221224576 3219350004 135298015 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153959 114633 300 300 0 153659 0
vsize: 615836
[startup+80.0031 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 19823
Raw data (stat): 19821 (pb2sat) R 19820 4613 4612 0 -1 0 222060 0 0 0 7554 445 0 0 25 0 1 0 864637991 651988992 132507 4294967295 134512640 135726644 3221224576 3219369292 134604420 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 159177 132507 300 300 0 158877 0
vsize: 636708
[startup+90.0033 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 19823
Raw data (stat): 19821 (pb2sat) R 19820 4613 4612 0 -1 0 242097 0 0 0 8515 485 0 0 25 0 1 0 864637991 681336832 152310 4294967295 134512640 135726644 3221224576 3219350912 135278616 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 166342 152310 300 300 0 166042 0
vsize: 665368
[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 19823
Raw data (stat): 19821 (pb2sat) R 19820 4613 4612 0 -1 0 257538 0 0 0 9487 513 0 0 25 0 1 0 864637991 753836032 167574 4294967295 134512640 135726644 3221224576 3219356128 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 184042 167574 300 300 0 183742 0
vsize: 736168
[startup+110.004 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 19823
Raw data (stat): 19821 (pb2sat) R 19820 4613 4612 0 -1 0 263621 0 0 0 10461 539 0 0 25 0 1 0 864637991 402677760 97857 4294967295 134512640 135726644 3221224576 3221222764 135277589 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 98310 97857 300 300 0 98010 0
vsize: 393240
[startup+114.206 s]
Raw data (loadavg): 0.99 0.96 0.91 1/53 19823
Raw data (stat): 19821 (pb2sat) R 19820 4613 4612 0 -1 0 263621 0 0 0 10461 539 0 0 25 0 1 0 864637991 402677760 97857 4294967295 134512640 135726644 3221224576 3221222764 135277589 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 98310 97857 300 300 0 98010 0
vsize: 0

Child status: 1
Real time (s): 114.205
CPU time (s): 114.21
CPU user time (s): 108.6
CPU system time (s): 5.60915
CPU usage (%): 100.004
Max. virtual memory (Kb): 736168
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####