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/MIPLIB/miplib/normalized-mps-v2-20-10-bell3b.opb
MD5SUMefb36546b6b37df68ff339bb766886b9
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 1780
Biggest coefficient in the objective function 50331648000000000
Number of bits for the biggest coefficient in the objective function 56
Sum of the numbers in the objective function 1076758128151185266
Number of bits of the sum of numbers in the objective function 60
Biggest number in a constraint 50331648000000000
Number of bits of the biggest number in a constraint 56
Biggest sum of numbers in a constraint 1076758128151185266
Number of bits of the biggest sum of numbers60
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1225.11
Number of variables2283
Total number of constraints194
Number of constraints which are clauses22
Number of constraints which are cardinality constraints (but not clauses)39
Number of constraints which are nor clauses,nor cardinality constraints133
Minimum length of a constraint1
Maximum length of a constraint195

Trace number 35129 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-05-28 12:17:12 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24429 boxname=wulflinc2 idbench=901 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  efb36546b6b37df68ff339bb766886b9  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-bell3b.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-bell3b.opb
IDLAUNCH: 24429
/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:        725176 kB
Buffers:         37100 kB
Cached:         249788 kB
SwapCached:        820 kB
Active:          22788 kB
Inactive:       266280 kB
HighTotal:      131008 kB
HighFree:        32872 kB
LowTotal:       903652 kB
LowFree:        692304 kB
SwapTotal:     2097136 kB
SwapFree:      2095480 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5340 kB
Slab:            14680 kB
Committed_AS:    71792 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:19:06 (client local time) WITH STATUS 1 IN 113.082 SECONDS
stats: 24429 7 113.082 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): 0.85 0.94 0.90 2/54 9956
Raw data (stat): 9956 (runsolver) R 9955 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806518518 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+10.0005 s]
Raw data (loadavg): 0.87 0.94 0.90 2/54 9956
Raw data (stat): 9956 (pb2sat) R 9955 31399 31398 0 -1 0 29029 0 0 0 943 55 0 0 25 0 1 0 806518518 89903104 17892 4294967295 134512640 135726644 3221224576 3220494548 134773421 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21949 17894 300 300 0 21649 0
vsize: 87796
[startup+20.0015 s]
Raw data (loadavg): 0.89 0.94 0.90 2/54 9956
Raw data (stat): 9956 (pb2sat) R 9955 31399 31398 0 -1 0 57039 0 0 0 1886 113 0 0 25 0 1 0 806518518 175984640 34684 4294967295 134512640 135726644 3221224576 3220494632 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42965 34685 300 300 0 42665 0
vsize: 171860
[startup+30.0022 s]
Raw data (loadavg): 0.91 0.94 0.90 2/54 9956
Raw data (stat): 9956 (pb2sat) R 9955 31399 31398 0 -1 0 95971 0 0 0 2810 189 0 0 25 0 1 0 806518518 296587264 51426 4294967295 134512640 135726644 3221224576 3220497200 135297953 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72409 51427 300 300 0 72109 0
vsize: 289636
[startup+40.0015 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 9956
Raw data (stat): 9956 (pb2sat) R 9955 31399 31398 0 -1 0 112103 0 0 0 3781 218 0 0 25 0 1 0 806518518 346550272 67329 4294967295 134512640 135726644 3221224576 3220498032 134766312 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84607 67329 300 300 0 84307 0
vsize: 338428
[startup+50.0026 s]
Raw data (loadavg): 0.93 0.94 0.90 2/54 9956
Raw data (stat): 9956 (pb2sat) R 9955 31399 31398 0 -1 0 147675 0 0 0 4717 283 0 0 25 0 1 0 806518518 543555584 102048 4294967295 134512640 135726644 3221224576 3220496360 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 132704 102049 300 300 0 132404 0
vsize: 530816
[startup+60.0357 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 9956
Raw data (stat): 9956 (pb2sat) R 9955 31399 31398 0 -1 0 190193 0 0 0 5626 377 0 0 25 0 1 0 806518518 591269888 101018 4294967295 134512640 135726644 3221224576 3220500932 135341057 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 144353 101018 300 300 0 144053 0
vsize: 577412
[startup+70.0366 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 9956
Raw data (stat): 9956 (pb2sat) R 9955 31399 31398 0 -1 0 200949 0 0 0 6606 398 0 0 25 0 1 0 806518518 624824320 111571 4294967295 134512640 135726644 3221224576 3220498060 134766300 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 152545 111571 300 300 0 152245 0
vsize: 610180
[startup+80.0367 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 9956
Raw data (stat): 9956 (pb2sat) R 9955 31399 31398 0 -1 0 219493 0 0 0 7571 433 0 0 25 0 1 0 806518518 649965568 129884 4294967295 134512640 135726644 3221224576 3220505680 134782642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 158683 129885 300 300 0 158383 0
vsize: 634732
[startup+90.0367 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 9956
Raw data (stat): 9956 (pb2sat) R 9955 31399 31398 0 -1 0 239105 0 0 0 8535 469 0 0 25 0 1 0 806518518 680517632 149264 4294967295 134512640 135726644 3221224576 3220497680 134782642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 166142 149265 300 300 0 165842 0
vsize: 664568
[startup+100.037 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 9956
Raw data (stat): 9956 (pb2sat) R 9955 31399 31398 0 -1 0 254277 0 0 0 9506 498 0 0 25 0 1 0 806518518 753557504 164255 4294967295 134512640 135726644 3221224576 3220497692 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 183974 164256 300 300 0 183674 0
vsize: 735896
[startup+110.036 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 9956
Raw data (stat): 9956 (pb2sat) R 9955 31399 31398 0 -1 0 258535 0 0 0 10485 519 0 0 25 0 1 0 806518518 400236544 97093 4294967295 134512640 135726644 3221224576 3221222764 135277538 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97714 97093 300 300 0 97414 0
vsize: 390856
[startup+113.071 s]
Raw data (loadavg): 0.97 0.95 0.91 1/53 9956
Raw data (stat): 9956 (pb2sat) R 9955 31399 31398 0 -1 0 258535 0 0 0 10485 519 0 0 25 0 1 0 806518518 400236544 97093 4294967295 134512640 135726644 3221224576 3221222764 135277538 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97714 97093 300 300 0 97414 0
vsize: 0

Child status: 1
Real time (s): 113.07
CPU time (s): 113.082
CPU user time (s): 107.679
CPU system time (s): 5.40318
CPU usage (%): 100.01
Max. virtual memory (Kb): 735896
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####