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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-woodw.opb
MD5SUM32750e3c7e75d9737a8a929595ea705c
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 80
Biggest coefficient in the objective function 524288
Number of bits for the biggest coefficient in the objective function 20
Sum of the numbers in the objective function 4194300
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 10485760000
Number of bits of the biggest number in a constraint 34
Biggest sum of numbers in a constraint 543542482725
Number of bits of the biggest sum of numbers39
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark5.15522
Number of variables168100
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 constraint20
Maximum length of a constraint29060

Trace number 35510 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc22 THE 2005-05-28 13:19:46 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24805 boxname=wulflinc22 idbench=1277 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  32750e3c7e75d9737a8a929595ea705c  /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-13-7-woodw.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-13-7-woodw.opb
IDLAUNCH: 24805
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.031
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		: 451.031
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:        760472 kB
Buffers:         33596 kB
Cached:         209324 kB
SwapCached:        384 kB
Active:          70072 kB
Inactive:       182768 kB
HighTotal:      131008 kB
HighFree:          308 kB
LowTotal:       903652 kB
LowFree:        760164 kB
SwapTotal:     2097892 kB
SwapFree:      2096800 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5540 kB
Slab:            15692 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:21:36 (client local time) WITH STATUS 1 IN 109.393 SECONDS
stats: 24805 7 109.393 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): 0.92 0.95 0.91 1/54 948
Raw data (stat): 948 (runsolver) R 947 23310 23309 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 865111200 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+10.0004 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 948
Raw data (stat): 948 (pb2sat) R 947 23310 23309 0 -1 0 27750 0 0 0 938 61 0 0 25 0 1 0 865111200 88002560 16636 4294967295 134512640 135726644 3221224576 3219669872 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21485 16636 300 300 0 21185 0
vsize: 85940
[startup+20.0013 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 948
Raw data (stat): 948 (pb2sat) R 947 23310 23309 0 -1 0 57437 0 0 0 1874 125 0 0 25 0 1 0 865111200 175583232 35094 4294967295 134512640 135726644 3221224576 3219636048 134810195 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42867 35094 300 300 0 42567 0
vsize: 171468
[startup+30.0007 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 948
Raw data (stat): 948 (pb2sat) R 947 23310 23309 0 -1 0 98474 0 0 0 2794 205 0 0 25 0 1 0 865111200 300023808 53928 4294967295 134512640 135726644 3221224576 3219594636 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73248 53928 300 300 0 72948 0
vsize: 292992
[startup+40.0004 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 948
Raw data (stat): 948 (pb2sat) R 947 23310 23309 0 -1 0 115478 0 0 0 3761 238 0 0 25 0 1 0 865111200 348852224 70698 4294967295 134512640 135726644 3221224576 3219635436 134604462 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85169 70699 300 300 0 84869 0
vsize: 340676
[startup+50.0014 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 948
Raw data (stat): 948 (pb2sat) R 947 23310 23309 0 -1 0 156183 0 0 0 4687 313 0 0 25 0 1 0 865111200 554450944 110404 4294967295 134512640 135726644 3221224576 3219752504 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 135364 110406 300 300 0 135064 0
vsize: 541456
[startup+60.0008 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 948
Raw data (stat): 948 (pb2sat) R 947 23310 23309 0 -1 0 196828 0 0 0 5595 404 0 0 25 0 1 0 865111200 597598208 107662 4294967295 134512640 135726644 3221224576 3219549008 134739179 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145898 107663 300 300 0 145598 0
vsize: 583592
[startup+70.0005 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 948
Raw data (stat): 948 (pb2sat) R 947 23310 23309 0 -1 0 209070 0 0 0 6566 434 0 0 25 0 1 0 865111200 631152640 119683 4294967295 134512640 135726644 3221224576 3219680800 134560315 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154090 119684 300 300 0 153790 0
vsize: 616360
[startup+80.0005 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 948
Raw data (stat): 948 (pb2sat) R 947 23310 23309 0 -1 0 229538 0 0 0 7524 476 0 0 25 0 1 0 865111200 659402752 139912 4294967295 134512640 135726644 3221224576 3219799080 135280592 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160987 139913 300 300 0 160687 0
vsize: 643948
[startup+90.0003 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 948
Raw data (stat): 948 (pb2sat) R 947 23310 23309 0 -1 0 246222 0 0 0 8492 509 0 0 25 0 1 0 865111200 733253632 156404 4294967295 134512640 135726644 3221224576 3219585496 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 179017 156404 300 300 0 178717 0
vsize: 716068
[startup+100.001 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 948
Raw data (stat): 948 (pb2sat) R 947 23310 23309 0 -1 0 265091 0 0 0 9453 547 0 0 25 0 1 0 865111200 760930304 175040 4294967295 134512640 135726644 3221224576 3221222704 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185774 175040 300 300 0 185474 0
vsize: 743096
[startup+109.385 s]
Raw data (loadavg): 0.98 0.97 0.91 1/53 948
Raw data (stat): 948 (pb2sat) R 947 23310 23309 0 -1 0 265091 0 0 0 9453 547 0 0 25 0 1 0 865111200 760930304 175040 4294967295 134512640 135726644 3221224576 3221222704 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185774 175040 300 300 0 185474 0
vsize: 0

Child status: 1
Real time (s): 109.385
CPU time (s): 109.393
CPU user time (s): 103.554
CPU system time (s): 5.83911
CPU usage (%): 100.008
Max. virtual memory (Kb): 743096
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####