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-fit1d.opb
MD5SUMde6e9dcd85d0fedc70e76c82543d6a33
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 11514
Biggest coefficient in the objective function 2949120
Number of bits for the biggest coefficient in the objective function 22
Sum of the numbers in the objective function 462466666
Number of bits of the sum of numbers in the objective function 29
Biggest number in a constraint 3870720
Number of bits of the biggest number in a constraint 22
Biggest sum of numbers in a constraint 580921206
Number of bits of the biggest sum of numbers30
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.18
Number of variables11514
Total number of constraints1050
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 constraints1050
Minimum length of a constraint11
Maximum length of a constraint11514

Trace number 42312 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 05:27:38 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25530 boxname=wulflinc4 idbench=830 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  de6e9dcd85d0fedc70e76c82543d6a33  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-fit1d.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-fit1d.opb
IDLAUNCH: 25530
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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	: 2
cpu MHz		: 451.169
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:        725976 kB
Buffers:         34112 kB
Cached:         252040 kB
SwapCached:        944 kB
Active:          51884 kB
Inactive:       236352 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        725724 kB
SwapTotal:     2097136 kB
SwapFree:      2095208 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14600 kB
Committed_AS:    71908 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:29:41 (client local time) WITH STATUS 1 IN 123.016 SECONDS
stats: 25530 7 123.016 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 0.97 0.93 2/54 21349
Raw data (stat): 21349 (runsolver) R 21348 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968229383 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+9.99989 s]
Raw data (loadavg): 0.94 0.97 0.93 2/54 21349
Raw data (stat): 21349 (pb2sat-v2) R 21348 21152 21151 0 -1 0 16036 0 0 0 959 39 0 0 25 0 1 0 968229383 51978240 10445 4294967295 134512640 135730672 3221224576 3215965484 135291238 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 12690 10446 301 301 0 12389 0
vsize: 50760
[startup+20.0007 s]
Raw data (loadavg): 0.95 0.97 0.93 2/54 21349
Raw data (stat): 21349 (pb2sat-v2) R 21348 21152 21151 0 -1 0 49878 0 0 0 1885 113 0 0 25 0 1 0 968229383 155279360 27845 4294967295 134512640 135730672 3221224576 3216718748 134607952 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 37910 27846 301 301 0 37609 0
vsize: 151640
[startup+30.002 s]
Raw data (loadavg): 0.95 0.97 0.93 2/54 21349
Raw data (stat): 21349 (pb2sat-v2) R 21348 21152 21151 0 -1 0 67248 0 0 0 2845 154 0 0 25 0 1 0 968229383 192872448 44995 4294967295 134512640 135730672 3221224576 3216343504 134813863 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 47088 44996 301 301 0 46787 0
vsize: 188352
[startup+40.0015 s]
Raw data (loadavg): 0.96 0.97 0.93 2/54 21349
Raw data (stat): 21349 (pb2sat-v2) R 21348 21152 21151 0 -1 0 103160 0 0 0 3776 223 0 0 25 0 1 0 968229383 336875520 59251 4294967295 134512640 135730672 3221224576 3216162160 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 82245 59252 301 301 0 81944 0
vsize: 328980
[startup+50.0024 s]
Raw data (loadavg): 0.97 0.97 0.93 2/54 21349
Raw data (stat): 21349 (pb2sat-v2) R 21348 21152 21151 0 -1 0 121200 0 0 0 4738 261 0 0 25 0 1 0 968229383 360259584 77071 4294967295 134512640 135730672 3221224576 3216595668 134770409 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 87954 77071 301 301 0 87653 0
vsize: 351816
[startup+60.0023 s]
Raw data (loadavg): 0.97 0.97 0.93 2/54 21349
Raw data (stat): 21349 (pb2sat-v2) R 21348 21152 21151 0 -1 0 163979 0 0 0 5655 344 0 0 25 0 1 0 968229383 570048512 118684 4294967295 134512640 135730672 3221224576 3216588352 134776110 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 139172 118684 301 301 0 138871 0
vsize: 556688
[startup+70.0032 s]
Raw data (loadavg): 0.97 0.97 0.93 2/54 21349
Raw data (stat): 21349 (pb2sat-v2) R 21348 21152 21151 0 -1 0 197959 0 0 0 6580 420 0 0 25 0 1 0 968229383 632958976 110510 4294967295 134512640 135730672 3221224576 3216320864 134783984 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154531 110510 301 301 0 154230 0
vsize: 618124
[startup+80.0044 s]
Raw data (loadavg): 0.98 0.97 0.93 2/54 21349
Raw data (stat): 21349 (pb2sat-v2) R 21348 21152 21151 0 -1 0 209422 0 0 0 7553 447 0 0 25 0 1 0 968229383 633364480 121770 4294967295 134512640 135730672 3221224576 3216311248 134546503 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154630 121771 301 301 0 154329 0
vsize: 618520
[startup+90.0043 s]
Raw data (loadavg): 0.98 0.97 0.93 2/54 21349
Raw data (stat): 21349 (pb2sat-v2) R 21348 21152 21151 0 -1 0 227876 0 0 0 8513 487 0 0 25 0 1 0 968229383 659857408 140010 4294967295 134512640 135730672 3221224576 3216462048 134770715 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 161098 140011 301 301 0 160797 0
vsize: 644392
[startup+100.005 s]
Raw data (loadavg): 0.98 0.97 0.93 2/54 21349
Raw data (stat): 21349 (pb2sat-v2) R 21348 21152 21151 0 -1 0 242678 0 0 0 9484 517 0 0 25 0 1 0 968229383 731410432 154640 4294967295 134512640 135730672 3221224576 3216405052 134637875 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 178567 154640 301 301 0 178266 0
vsize: 714268
[startup+110.005 s]
Raw data (loadavg): 0.99 0.97 0.93 2/54 21349
Raw data (stat): 21349 (pb2sat-v2) R 21348 21152 21151 0 -1 0 260938 0 0 0 10443 557 0 0 25 0 1 0 968229383 757633024 172688 4294967295 134512640 135730672 3221224576 3216635120 134770759 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 184969 172688 301 301 0 184668 0
vsize: 739876
[startup+120.006 s]
Raw data (loadavg): 0.99 0.97 0.93 2/54 21349
Raw data (stat): 21349 (pb2sat-v2) R 21348 21152 21151 0 -1 0 265719 0 0 0 11432 569 0 0 25 0 1 0 968229383 764907520 177323 4294967295 134512640 135730672 3221224576 3221222828 135281175 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 186745 177323 301 301 0 186444 0
vsize: 746980
[startup+123.019 s]
Raw data (loadavg): 0.99 0.97 0.93 1/53 21349
Raw data (stat): 21349 (pb2sat-v2) R 21348 21152 21151 0 -1 0 265719 0 0 0 11432 569 0 0 25 0 1 0 968229383 764907520 177323 4294967295 134512640 135730672 3221224576 3221222828 135281175 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 186745 177323 301 301 0 186444 0
vsize: 0

Child status: 1
Real time (s): 123.018
CPU time (s): 123.016
CPU user time (s): 116.966
CPU system time (s): 6.05008
CPU usage (%): 99.9983
Max. virtual memory (Kb): 746980
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####