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-seba.opb
MD5SUM41b5898e0f1b65f739b9a89af7596ef6
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483647
Optimality of the best value was proved NO
Number of terms in the objective function 7565
Biggest coefficient in the objective function 258342282854400
Number of bits for the biggest coefficient in the objective function 48
Sum of the numbers in the objective function 4664562894591719
Number of bits of the sum of numbers in the objective function 53
Biggest number in a constraint 258342282854400
Number of bits of the biggest number in a constraint 48
Biggest sum of numbers in a constraint 4664562894591719
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1259.63
Number of variables23376
Total number of constraints1029
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 constraints1029
Minimum length of a constraint10
Maximum length of a constraint496

Trace number 42355 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 06:00:54 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25574 boxname=wulflinc3 idbench=874 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  41b5898e0f1b65f739b9a89af7596ef6  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-seba.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-seba.opb
IDLAUNCH: 25574
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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		: 451.190
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:        740928 kB
Buffers:         34404 kB
Cached:         236980 kB
SwapCached:        820 kB
Active:          34936 kB
Inactive:       238580 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        740676 kB
SwapTotal:     2097136 kB
SwapFree:      2095340 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14376 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 06:02:38 (client local time) WITH STATUS 1 IN 104.619 SECONDS
stats: 25574 7 104.619 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): 0.99 0.96 0.91 1/54 17626
Raw data (stat): 17626 (runsolver) R 17625 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968429938 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+10.0004 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 17626
Raw data (stat): 17626 (pb2sat-v2) R 17625 20224 20223 0 -1 0 25230 0 0 0 944 55 0 0 25 0 1 0 968429938 77586432 14305 4294967295 134512640 135730672 3221224576 3221133120 134786640 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 18942 14305 301 301 0 18641 0
vsize: 75768
[startup+20.0012 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 17626
Raw data (stat): 17626 (pb2sat-v2) R 17625 20224 20223 0 -1 0 52309 0 0 0 1882 117 0 0 25 0 1 0 968429938 153710592 30404 4294967295 134512640 135730672 3221224576 3221109540 135282783 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 37527 30404 301 301 0 37226 0
vsize: 150108
[startup+30.002 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 17628
Raw data (stat): 17626 (pb2sat-v2) R 17625 20224 20223 0 -1 0 92362 0 0 0 2802 197 0 0 25 0 1 0 968429938 274161664 48765 4294967295 134512640 135730672 3221224576 3221180768 135109367 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 66934 48765 301 301 0 66633 0
vsize: 267736
[startup+40.0019 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 17628
Raw data (stat): 17626 (pb2sat-v2) R 17625 20224 20223 0 -1 0 106358 0 0 0 3771 228 0 0 25 0 1 0 968429938 313393152 62531 4294967295 134512640 135730672 3221224576 3221220684 135104780 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 76512 62531 301 301 0 76211 0
vsize: 306048
[startup+50.0027 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 17628
Raw data (stat): 17626 (pb2sat-v2) R 17625 20224 20223 0 -1 0 143855 0 0 0 4696 303 0 0 25 0 1 0 968429938 505610240 98993 4294967295 134512640 135730672 3221224576 3221160608 134775411 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 123440 98993 301 301 0 123139 0
vsize: 493760
[startup+60.0026 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 17628
Raw data (stat): 17626 (pb2sat-v2) R 17625 20224 20223 0 -1 0 180612 0 0 0 5612 388 0 0 25 0 1 0 968429938 542941184 93460 4294967295 134512640 135730672 3221224576 3221130704 134785868 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 132554 93460 301 301 0 132253 0
vsize: 530216
[startup+70.0034 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 17628
Raw data (stat): 17626 (pb2sat-v2) R 17625 20224 20223 0 -1 0 192738 0 0 0 6585 414 0 0 25 0 1 0 968429938 576495616 105365 4294967295 134512640 135730672 3221224576 3221133252 134549565 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 140746 105365 301 301 0 140445 0
vsize: 562984
[startup+80.0042 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 17628
Raw data (stat): 17626 (pb2sat-v2) R 17625 20224 20223 0 -1 0 207148 0 0 0 7549 451 0 0 25 0 1 0 968429938 576499712 119510 4294967295 134512640 135730672 3221224576 3221024092 135301642 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 140747 119510 301 301 0 140446 0
vsize: 562988
[startup+90.0041 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 17628
Raw data (stat): 17626 (pb2sat-v2) R 17625 20224 20223 0 -1 0 219561 0 0 0 8519 481 0 0 25 0 1 0 968429938 628318208 131704 4294967295 134512640 135730672 3221224576 3221071628 135291064 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153398 131704 301 301 0 153097 0
vsize: 613592
[startup+100.005 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 17628
Raw data (stat): 17626 (pb2sat-v2) R 17625 20224 20223 0 -1 0 243938 0 0 0 9463 536 0 0 25 0 1 0 968429938 640892928 144969 4294967295 134512640 135730672 3221224576 3221222828 135281249 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 156468 144969 301 301 0 156167 0
vsize: 625872
[startup+104.62 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 17628
Raw data (stat): 17626 (pb2sat-v2) R 17625 20224 20223 0 -1 0 243938 0 0 0 9463 536 0 0 25 0 1 0 968429938 640892928 144969 4294967295 134512640 135730672 3221224576 3221222828 135281249 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 156468 144969 301 301 0 156167 0
vsize: 0

Child status: 1
Real time (s): 104.619
CPU time (s): 104.619
CPU user time (s): 98.954
CPU system time (s): 5.66514
CPU usage (%): 99.9998
Max. virtual memory (Kb): 625872
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####