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/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos12.opb
MD5SUM4968ba84d5c370c0dd8f5e6c6068a443
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 13440
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 481036336704
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 536870912
Number of bits of the biggest number in a constraint 30
Biggest sum of numbers in a constraint 481036336704
Number of bits of the biggest sum of numbers39
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1211.72
Number of variables22960
Total number of constraints11747
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)3136
Number of constraints which are nor clauses,nor cardinality constraints8611
Minimum length of a constraint1
Maximum length of a constraint840

Trace number 35343 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc29 THE 2005-05-28 12:57:09 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24647 boxname=wulflinc29 idbench=1119 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  4968ba84d5c370c0dd8f5e6c6068a443  /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-20-10-neos12.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-20-10-neos12.opb
IDLAUNCH: 24647
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.020
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	: 3
cpu MHz		: 451.020
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:        744312 kB
Buffers:         34704 kB
Cached:         230068 kB
SwapCached:        632 kB
Active:          20852 kB
Inactive:       245912 kB
HighTotal:      131008 kB
HighFree:        45724 kB
LowTotal:       903652 kB
LowFree:        698588 kB
SwapTotal:     2097892 kB
SwapFree:      2096368 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5132 kB
Slab:            17868 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:59:02 (client local time) WITH STATUS 1 IN 112.87 SECONDS
stats: 24647 7 112.87 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): 0.92 0.95 0.90 2/54 28319
Raw data (stat): 28319 (runsolver) R 28318 20001 20000 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864971726 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0007 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 28319
Raw data (stat): 28319 (pb2sat) R 28318 20001 20000 0 -1 0 22356 0 0 0 946 52 0 0 25 0 1 0 864971726 68702208 14361 4294967295 134512640 135726644 3221224576 3216127712 135279093 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 16773 14362 300 300 0 16473 0
vsize: 67092
[startup+20.0015 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 28319
Raw data (stat): 28319 (pb2sat) R 28318 20001 20000 0 -1 0 53294 0 0 0 1882 116 0 0 25 0 1 0 864971726 173096960 31270 4294967295 134512640 135726644 3221224576 3216154192 134784482 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42260 31271 300 300 0 41960 0
vsize: 169040
[startup+30.0013 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 28319
Raw data (stat): 28319 (pb2sat) R 28318 20001 20000 0 -1 0 91530 0 0 0 2806 193 0 0 25 0 1 0 864971726 354156544 60104 4294967295 134512640 135726644 3221224576 3216339392 134784885 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 86464 60108 300 300 0 86164 0
vsize: 345856
[startup+40.0021 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 28319
Raw data (stat): 28319 (pb2sat) R 28318 20001 20000 0 -1 0 110713 0 0 0 3766 234 0 0 25 0 1 0 864971726 345620480 66772 4294967295 134512640 135726644 3221224576 3216293352 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84380 66772 300 300 0 84080 0
vsize: 337520
[startup+50.0019 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 28319
Raw data (stat): 28319 (pb2sat) R 28318 20001 20000 0 -1 0 131556 0 0 0 4723 277 0 0 25 0 1 0 864971726 375492608 87373 4294967295 134512640 135726644 3221224576 3216805352 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 91673 87374 300 300 0 91373 0
vsize: 366692
[startup+60.0027 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 28319
Raw data (stat): 28319 (pb2sat) R 28318 20001 20000 0 -1 0 193443 0 0 0 5604 396 0 0 25 0 1 0 864971726 599904256 106142 4294967295 134512640 135726644 3221224576 3216541580 135287540 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 146461 106142 300 300 0 146161 0
vsize: 585844
[startup+70.0025 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 28319
Raw data (stat): 28319 (pb2sat) R 28318 20001 20000 0 -1 0 205643 0 0 0 6577 423 0 0 25 0 1 0 864971726 633458688 118124 4294967295 134512640 135726644 3221224576 3217051352 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154653 118124 300 300 0 154353 0
vsize: 618612
[startup+80.0076 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 28319
Raw data (stat): 28319 (pb2sat) R 28318 20001 20000 0 -1 0 224541 0 0 0 7534 466 0 0 25 0 1 0 864971726 655355904 136780 4294967295 134512640 135726644 3221224576 3216883752 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 159999 136780 300 300 0 159699 0
vsize: 639996
[startup+90.0082 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 28319
Raw data (stat): 28319 (pb2sat) R 28318 20001 20000 0 -1 0 242397 0 0 0 8495 506 0 0 25 0 1 0 864971726 731234304 154430 4294967295 134512640 135726644 3221224576 3217656800 134780435 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 178524 154430 300 300 0 178224 0
vsize: 714096
[startup+100.008 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 28319
Raw data (stat): 28319 (pb2sat) R 28318 20001 20000 0 -1 0 262036 0 0 0 9452 548 0 0 25 0 1 0 864971726 759484416 173840 4294967295 134512640 135726644 3221224576 3217079032 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185421 173840 300 300 0 185121 0
vsize: 741684
[startup+110.009 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 28319
Raw data (stat): 28319 (pb2sat) R 28318 20001 20000 0 -1 0 265713 0 0 0 10429 572 0 0 25 0 1 0 864971726 413208576 100451 4294967295 134512640 135726644 3221224576 3221222832 135279084 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 100881 100451 300 300 0 100581 0
vsize: 403524
[startup+112.862 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 28319
Raw data (stat): 28319 (pb2sat) R 28318 20001 20000 0 -1 0 265713 0 0 0 10429 572 0 0 25 0 1 0 864971726 413208576 100451 4294967295 134512640 135726644 3221224576 3221222832 135279084 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 100881 100451 300 300 0 100581 0
vsize: 0

Child status: 1
Real time (s): 112.862
CPU time (s): 112.87
CPU user time (s): 106.936
CPU system time (s): 5.9341
CPU usage (%): 100.007
Max. virtual memory (Kb): 741684
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####