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-bnl1.opb
MD5SUM03a27b3b499acf5b0d4b0eee83413d97
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 19660
Biggest coefficient in the objective function 12635026227200
Number of bits for the biggest coefficient in the objective function 44
Sum of the numbers in the objective function 1038651120525150
Number of bits of the sum of numbers in the objective function 50
Biggest number in a constraint 12635026227200
Number of bits of the biggest number in a constraint 44
Biggest sum of numbers in a constraint 1038651120525150
Number of bits of the biggest sum of numbers50
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.202968
Number of variables23500
Total number of constraints632
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 constraints632
Minimum length of a constraint20
Maximum length of a constraint1520

Trace number 42677 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 13:46:11 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25896 boxname=wulflinc5 idbench=1196 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  03a27b3b499acf5b0d4b0eee83413d97  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-bnl1.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-bnl1.opb
IDLAUNCH: 25896
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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	: 2
cpu MHz		: 451.007
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:        683320 kB
Buffers:         21472 kB
Cached:         306440 kB
SwapCached:        664 kB
Active:          27108 kB
Inactive:       302952 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        683068 kB
SwapTotal:     2097136 kB
SwapFree:      2095532 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            15604 kB
Committed_AS:    63716 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 13:48:16 (client local time) WITH STATUS 1 IN 124.408 SECONDS
stats: 25896 7 124.408 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 0.94 0.90 2/54 15256
Raw data (stat): 15256 (runsolver) R 15255 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971231268 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+10.001 s]
Raw data (loadavg): 0.92 0.95 0.90 2/54 15256
Raw data (stat): 15256 (pb2sat-v2) R 15255 7266 7265 0 -1 0 9973 0 0 0 977 22 0 0 25 0 1 0 971231268 31416320 6015 4294967295 134512640 135730672 3221224576 3221147656 134610833 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 7670 6015 301 301 0 7369 0
vsize: 30680
[startup+20.0016 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 15256
Raw data (stat): 15256 (pb2sat-v2) R 15255 7266 7265 0 -1 0 39434 0 0 0 1915 84 0 0 25 0 1 0 971231268 120893440 23629 4294967295 134512640 135730672 3221224576 3221149836 134608006 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 29515 23629 301 301 0 29214 0
vsize: 118060
[startup+30.002 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 15256
Raw data (stat): 15256 (pb2sat-v2) R 15255 7266 7265 0 -1 0 61884 0 0 0 2868 131 0 0 25 0 1 0 971231268 182345728 39718 4294967295 134512640 135730672 3221224576 3221157724 134608030 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 44518 39718 301 301 0 44217 0
vsize: 178072
[startup+40.0032 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 15256
Raw data (stat): 15256 (pb2sat-v2) R 15255 7266 7265 0 -1 0 98558 0 0 0 3796 203 0 0 25 0 1 0 971231268 297013248 54728 4294967295 134512640 135730672 3221224576 3221160144 134611253 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 72513 54728 301 301 0 72212 0
vsize: 290052
[startup+50.0039 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 15256
Raw data (stat): 15256 (pb2sat-v2) R 15255 7266 7265 0 -1 0 114867 0 0 0 4761 238 0 0 25 0 1 0 971231268 349933568 70825 4294967295 134512640 135730672 3221224576 3221159280 134551431 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85433 70825 301 301 0 85132 0
vsize: 341732
[startup+60.0042 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 15256
Raw data (stat): 15256 (pb2sat-v2) R 15255 7266 7265 0 -1 0 156081 0 0 0 5686 313 0 0 25 0 1 0 971231268 555216896 110933 4294967295 134512640 135730672 3221224576 3221155500 135301630 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 135551 110933 301 301 0 135250 0
vsize: 542204
[startup+70.005 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 15256
Raw data (stat): 15256 (pb2sat-v2) R 15255 7266 7265 0 -1 0 191224 0 0 0 6608 391 0 0 25 0 1 0 971231268 592011264 102851 4294967295 134512640 135730672 3221224576 3221158632 134607985 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 144534 102851 301 301 0 144233 0
vsize: 578136
[startup+80.0052 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 15256
Raw data (stat): 15256 (pb2sat-v2) R 15255 7266 7265 0 -1 0 201465 0 0 0 7587 413 0 0 25 0 1 0 971231268 625565696 112906 4294967295 134512640 135730672 3221224576 3221156688 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 152726 112906 301 301 0 152425 0
vsize: 610904
[startup+90.0055 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 15256
Raw data (stat): 15256 (pb2sat-v2) R 15255 7266 7265 0 -1 0 218444 0 0 0 8556 444 0 0 25 0 1 0 971231268 646074368 129668 4294967295 134512640 135730672 3221224576 3221160016 134786142 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 157733 129668 301 301 0 157432 0
vsize: 630932
[startup+100.005 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 15256
Raw data (stat): 15256 (pb2sat-v2) R 15255 7266 7265 0 -1 0 237458 0 0 0 9520 479 0 0 25 0 1 0 971231268 673955840 148461 4294967295 134512640 135730672 3221224576 3221165456 134548503 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 164540 148461 301 301 0 164239 0
vsize: 658160
[startup+110.006 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 15256
Raw data (stat): 15256 (pb2sat-v2) R 15255 7266 7265 0 -1 0 252451 0 0 0 10495 505 0 0 25 0 1 0 971231268 746549248 163280 4294967295 134512640 135730672 3221224576 3221160972 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 182263 163280 301 301 0 181962 0
vsize: 729052
[startup+120.007 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 15256
Raw data (stat): 15256 (pb2sat-v2) R 15255 7266 7265 0 -1 0 260423 0 0 0 11464 534 0 0 25 0 1 0 971231268 397836288 96634 4294967295 134512640 135730672 3221224576 3221222764 135281112 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97128 96634 301 301 0 96827 0
vsize: 388512
[startup+124.42 s]
Raw data (loadavg): 0.99 0.96 0.91 1/53 15256
Raw data (stat): 15256 (pb2sat-v2) R 15255 7266 7265 0 -1 0 260423 0 0 0 11464 534 0 0 25 0 1 0 971231268 397836288 96634 4294967295 134512640 135730672 3221224576 3221222764 135281112 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97128 96634 301 301 0 96827 0
vsize: 0

Child status: 1
Real time (s): 124.42
CPU time (s): 124.408
CPU user time (s): 118.851
CPU system time (s): 5.55715
CPU usage (%): 99.9903
Max. virtual memory (Kb): 729052
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####