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-scagr25.opb
MD5SUMbe61473a6f4c61e5d13e35f131b73ac6
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 14250
Biggest coefficient in the objective function 35540854374400
Number of bits for the biggest coefficient in the objective function 46
Sum of the numbers in the objective function 4668575759312850
Number of bits of the sum of numbers in the objective function 53
Biggest number in a constraint 35540854374400
Number of bits of the biggest number in a constraint 46
Biggest sum of numbers in a constraint 4668575759312850
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 benchmark0.131979
Number of variables15000
Total number of constraints471
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 constraints471
Minimum length of a constraint30
Maximum length of a constraint300

Trace number 42340 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-16 05:49:07 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25561 boxname=wulflinc2 idbench=861 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  be61473a6f4c61e5d13e35f131b73ac6  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-scagr25.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-scagr25.opb
IDLAUNCH: 25561
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        742220 kB
Buffers:         34640 kB
Cached:         232028 kB
SwapCached:       4448 kB
Active:          62560 kB
Inactive:       209252 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        741968 kB
SwapTotal:     2097136 kB
SwapFree:      2091696 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5056 kB
Slab:            15000 kB
Committed_AS:    71892 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:50:57 (client local time) WITH STATUS 1 IN 110.034 SECONDS
stats: 25561 7 110.034 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 0.98 0.92 1/54 5077
Raw data (stat): 5077 (runsolver) R 5076 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968372382 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+10.0006 s]
Raw data (loadavg): 0.94 0.98 0.92 2/54 5077
Raw data (stat): 5077 (pb2sat-v2) R 5076 31399 31398 0 -1 0 19211 0 0 0 955 43 0 0 25 0 1 0 968372382 57184256 11411 4294967295 134512640 135730672 3221224576 3221099264 134770867 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 13961 11411 301 301 0 13660 0
vsize: 55844
[startup+20.0013 s]
Raw data (loadavg): 0.95 0.98 0.92 2/54 5077
Raw data (stat): 5077 (pb2sat-v2) R 5076 31399 31398 0 -1 0 49853 0 0 0 1897 102 0 0 25 0 1 0 968372382 161038336 28021 4294967295 134512640 135730672 3221224576 3221137400 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 39316 28022 301 301 0 39015 0
vsize: 157264
[startup+30.002 s]
Raw data (loadavg): 0.96 0.98 0.92 2/54 5077
Raw data (stat): 5077 (pb2sat-v2) R 5076 31399 31398 0 -1 0 81335 0 0 0 2836 162 0 0 25 0 1 0 968372382 340611072 50088 4294967295 134512640 135730672 3221224576 3221170848 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 83157 50092 301 301 0 82856 0
vsize: 332628
[startup+40.0014 s]
Raw data (loadavg): 0.96 0.98 0.92 2/54 5077
Raw data (stat): 5077 (pb2sat-v2) R 5076 31399 31398 0 -1 0 106451 0 0 0 3786 213 0 0 25 0 1 0 968372382 332750848 62705 4294967295 134512640 135730672 3221224576 3221221024 135282776 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 81238 62705 301 301 0 80937 0
vsize: 324952
[startup+50.0025 s]
Raw data (loadavg): 0.97 0.98 0.92 2/54 5077
Raw data (stat): 5077 (pb2sat-v2) R 5076 31399 31398 0 -1 0 118207 0 0 0 4761 238 0 0 25 0 1 0 968372382 332886016 74246 4294967295 134512640 135730672 3221224576 3221130008 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 81271 74246 301 301 0 80970 0
vsize: 325084
[startup+60.0021 s]
Raw data (loadavg): 0.97 0.98 0.92 2/54 5077
Raw data (stat): 5077 (pb2sat-v2) R 5076 31399 31398 0 -1 0 169545 0 0 0 5661 338 0 0 25 0 1 0 968372382 648908800 107046 4294967295 134512640 135730672 3221224576 3221151856 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 158425 107051 301 301 0 158124 0
vsize: 633700
[startup+70.0028 s]
Raw data (loadavg): 0.98 0.98 0.92 2/54 5077
Raw data (stat): 5077 (pb2sat-v2) R 5076 31399 31398 0 -1 0 188706 0 0 0 6619 380 0 0 25 0 1 0 968372382 581795840 101426 4294967295 134512640 135730672 3221224576 3221191256 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 142040 101427 301 301 0 141739 0
vsize: 568160
[startup+80.0038 s]
Raw data (loadavg): 0.98 0.98 0.92 2/54 5077
Raw data (stat): 5077 (pb2sat-v2) R 5076 31399 31398 0 -1 0 200822 0 0 0 7591 409 0 0 25 0 1 0 968372382 584364032 113331 4294967295 134512640 135730672 3221224576 3221186960 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 142667 113331 301 301 0 142366 0
vsize: 570668
[startup+90.0032 s]
Raw data (loadavg): 0.98 0.98 0.92 2/54 5077
Raw data (stat): 5077 (pb2sat-v2) R 5076 31399 31398 0 -1 0 213607 0 0 0 8560 439 0 0 25 0 1 0 968372382 584634368 125882 4294967295 134512640 135730672 3221224576 3221103048 135284405 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 142733 125882 301 301 0 142432 0
vsize: 570932
[startup+100.004 s]
Raw data (loadavg): 0.98 0.98 0.92 2/54 5077
Raw data (stat): 5077 (pb2sat-v2) R 5076 31399 31398 0 -1 0 227815 0 0 0 9532 467 0 0 25 0 1 0 968372382 648347648 139890 4294967295 134512640 135730672 3221224576 3221142816 134786142 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 158288 139891 301 301 0 157987 0
vsize: 633152
[startup+110.005 s]
Raw data (loadavg): 0.99 0.98 0.92 2/54 5077
Raw data (stat): 5077 (pb2sat-v2) R 5076 31399 31398 0 -1 4 237996 0 0 0 10482 517 0 0 25 0 1 0 968372382 0 0 4294967295 0 0 0 0 0 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 0 0 0 0 0 0 0
vsize: 0
[startup+110.037 s]
Raw data (loadavg): 0.99 0.98 0.92 1/53 5077
Raw data (stat): 5077 (pb2sat-v2) R 5076 31399 31398 0 -1 4 237996 0 0 0 10482 517 0 0 25 0 1 0 968372382 0 0 4294967295 0 0 0 0 0 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 0 0 0 0 0 0 0
vsize: 0

Child status: 1
Real time (s): 110.037
CPU time (s): 110.034
CPU user time (s): 104.828
CPU system time (s): 5.20621
CPU usage (%): 99.9979
Max. virtual memory (Kb): 633700
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####