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-woodw.opb
MD5SUM5d2b367438a64c72c01ca61f03388807
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 120
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 4294967292
Number of bits of the sum of numbers in the objective function 32
Biggest number in a constraint 10737418240000
Number of bits of the biggest number in a constraint 44
Biggest sum of numbers in a constraint 556588032595749
Number of bits of the biggest sum of numbers49
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.36964
Number of variables252150
Total number of constraints1098
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 constraints1098
Minimum length of a constraint30
Maximum length of a constraint43590

Trace number 35121 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc26 THE 2005-05-28 12:16:29 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24421 boxname=wulflinc26 idbench=893 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  5d2b367438a64c72c01ca61f03388807  /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-20-10-woodw.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-20-10-woodw.opb
IDLAUNCH: 24421
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.061
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	: 3
cpu MHz		: 451.061
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        657640 kB
Buffers:         32948 kB
Cached:         312020 kB
SwapCached:        744 kB
Active:          47704 kB
Inactive:       299372 kB
HighTotal:      131008 kB
HighFree:         2744 kB
LowTotal:       903652 kB
LowFree:        654896 kB
SwapTotal:     2097892 kB
SwapFree:      2096256 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5088 kB
Slab:            24112 kB
Committed_AS:    63732 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:18:19 (client local time) WITH STATUS 1 IN 109.508 SECONDS
stats: 24421 7 109.508 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): 0.95 0.98 0.92 2/54 1606
Raw data (stat): 1606 (runsolver) R 1605 20687 20686 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864739024 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+10.0013 s]
Raw data (loadavg): 0.96 0.98 0.92 2/54 1606
Raw data (stat): 1606 (pb2sat) R 1605 20687 20686 0 -1 0 26908 0 0 0 940 59 0 0 25 0 1 0 864739024 87556096 15806 4294967295 134512640 135726644 3221224576 3218657492 135287529 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21376 15807 300 300 0 21076 0
vsize: 85504
[startup+20.0035 s]
Raw data (loadavg): 0.96 0.98 0.92 2/54 1606
Raw data (stat): 1606 (pb2sat) R 1605 20687 20686 0 -1 0 56794 0 0 0 1883 116 0 0 25 0 1 0 864739024 175812608 34459 4294967295 134512640 135726644 3221224576 3218724672 134554713 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42923 34459 300 300 0 42623 0
vsize: 171692
[startup+30.0031 s]
Raw data (loadavg): 0.97 0.98 0.92 2/54 1606
Raw data (stat): 1606 (pb2sat) R 1605 20687 20686 0 -1 0 97932 0 0 0 2799 200 0 0 25 0 1 0 864739024 300793856 53399 4294967295 134512640 135726644 3221224576 3218684980 135298012 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73436 53399 300 300 0 73136 0
vsize: 293744
[startup+40.0038 s]
Raw data (loadavg): 0.97 0.98 0.92 2/54 1606
Raw data (stat): 1606 (pb2sat) R 1605 20687 20686 0 -1 0 115036 0 0 0 3766 234 0 0 25 0 1 0 864739024 349487104 70263 4294967295 134512640 135726644 3221224576 3218936224 134782666 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85324 70264 300 300 0 85024 0
vsize: 341296
[startup+50.0045 s]
Raw data (loadavg): 0.98 0.98 0.92 2/54 1606
Raw data (stat): 1606 (pb2sat) R 1605 20687 20686 0 -1 0 152456 0 0 0 4699 301 0 0 25 0 1 0 864739024 549138432 106808 4294967295 134512640 135726644 3221224576 3218727904 134771702 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 134067 106811 300 300 0 133767 0
vsize: 536268
[startup+60.0052 s]
Raw data (loadavg): 0.98 0.98 0.92 2/54 1606
Raw data (stat): 1606 (pb2sat) R 1605 20687 20686 0 -1 0 196320 0 0 0 5611 389 0 0 25 0 1 0 864739024 598368256 107167 4294967295 134512640 135726644 3221224576 3218817408 134767064 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 146086 107167 300 300 0 145786 0
vsize: 584344
[startup+70.0052 s]
Raw data (loadavg): 0.98 0.98 0.92 2/54 1606
Raw data (stat): 1606 (pb2sat) R 1605 20687 20686 0 -1 0 208519 0 0 0 6585 415 0 0 25 0 1 0 864739024 631922688 119152 4294967295 134512640 135726644 3221224576 3218713008 134767052 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154278 119152 300 300 0 153978 0
vsize: 617112
[startup+80.0055 s]
Raw data (loadavg): 0.98 0.98 0.92 2/54 1606
Raw data (stat): 1606 (pb2sat) R 1605 20687 20686 0 -1 0 228902 0 0 0 7540 461 0 0 25 0 1 0 864739024 658821120 139288 4294967295 134512640 135726644 3221224576 3218954296 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160845 139288 300 300 0 160545 0
vsize: 643380
[startup+90.0062 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 1606
Raw data (stat): 1606 (pb2sat) R 1605 20687 20686 0 -1 0 246223 0 0 0 8506 495 0 0 25 0 1 0 864739024 734564352 156407 4294967295 134512640 135726644 3221224576 3218882236 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 179337 156407 300 300 0 179037 0
vsize: 717348
[startup+100.006 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 1606
Raw data (stat): 1606 (pb2sat) R 1605 20687 20686 0 -1 0 265080 0 0 0 9462 539 0 0 25 0 1 0 864739024 762511360 175021 4294967295 134512640 135726644 3221224576 3221222560 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 186160 175021 300 300 0 185860 0
vsize: 744640
[startup+109.498 s]
Raw data (loadavg): 0.99 0.98 0.92 1/53 1606
Raw data (stat): 1606 (pb2sat) R 1605 20687 20686 0 -1 0 265080 0 0 0 9462 539 0 0 25 0 1 0 864739024 762511360 175021 4294967295 134512640 135726644 3221224576 3221222560 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 186160 175021 300 300 0 185860 0
vsize: 0

Child status: 1
Real time (s): 109.497
CPU time (s): 109.508
CPU user time (s): 103.761
CPU system time (s): 5.74713
CPU usage (%): 100.01
Max. virtual memory (Kb): 744640
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####