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-agg2.opb
MD5SUM0cd976844df23087580a4e793412c20f
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 6930
Biggest coefficient in the objective function 53730040872960
Number of bits for the biggest coefficient in the objective function 46
Sum of the numbers in the objective function 8516865379203027
Number of bits of the sum of numbers in the objective function 53
Biggest number in a constraint 22763326668800000
Number of bits of the biggest number in a constraint 55
Biggest sum of numbers in a constraint 46271983665442689
Number of bits of the biggest sum of numbers56
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.080986
Number of variables9060
Total number of constraints467
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 constraints467
Minimum length of a constraint30
Maximum length of a constraint1440

Trace number 35022 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc30 THE 2005-05-28 12:00:32 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24334 boxname=wulflinc30 idbench=806 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0cd976844df23087580a4e793412c20f  /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-20-10-agg2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-20-10-agg2.opb
IDLAUNCH: 24334
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.072
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		: 451.072
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        854636 kB
Buffers:         34304 kB
Cached:         122024 kB
SwapCached:        752 kB
Active:          45724 kB
Inactive:       112744 kB
HighTotal:      131008 kB
HighFree:        71736 kB
LowTotal:       903652 kB
LowFree:        782900 kB
SwapTotal:     2097892 kB
SwapFree:      2096312 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5060 kB
Slab:            15968 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:02:23 (client local time) WITH STATUS 1 IN 110.247 SECONDS
stats: 24334 7 110.247 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): 0.94 0.92 0.90 2/54 535
Raw data (stat): 535 (runsolver) R 534 22056 22055 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864631509 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+10.0009 s]
Raw data (loadavg): 0.95 0.92 0.90 2/54 535
Raw data (stat): 535 (pb2sat) R 534 22056 22055 0 -1 0 29386 0 0 0 930 69 0 0 25 0 1 0 864631509 93216768 18235 4294967295 134512640 135726644 3221224576 3218442440 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22758 18235 300 300 0 22458 0
vsize: 91032
[startup+20.0012 s]
Raw data (loadavg): 0.96 0.93 0.90 2/54 535
Raw data (stat): 535 (pb2sat) R 534 22056 22055 0 -1 0 58854 0 0 0 1868 130 0 0 25 0 1 0 864631509 182226944 36461 4294967295 134512640 135726644 3221224576 3218469984 135280459 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 44489 36461 300 300 0 44189 0
vsize: 177956
[startup+30.002 s]
Raw data (loadavg): 0.96 0.93 0.90 2/54 535
Raw data (stat): 535 (pb2sat) R 534 22056 22055 0 -1 0 96801 0 0 0 2790 209 0 0 25 0 1 0 864631509 297267200 52210 4294967295 134512640 135726644 3221224576 3218472796 135298010 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 72575 52210 300 300 0 72275 0
vsize: 290300
[startup+40.0032 s]
Raw data (loadavg): 0.97 0.93 0.90 2/54 535
Raw data (stat): 535 (pb2sat) R 534 22056 22055 0 -1 0 115281 0 0 0 3751 248 0 0 25 0 1 0 864631509 355741696 70454 4294967295 134512640 135726644 3221224576 3218446128 134554544 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 86851 70454 300 300 0 86551 0
vsize: 347404
[startup+50.0038 s]
Raw data (loadavg): 0.97 0.93 0.91 2/54 537
Raw data (stat): 535 (pb2sat) R 534 22056 22055 0 -1 0 155880 0 0 0 4673 326 0 0 25 0 1 0 864631509 486477824 92473 4294967295 134512640 135726644 3221224576 3218492548 135277543 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 118769 92473 300 300 0 118469 0
vsize: 475076
[startup+60.0036 s]
Raw data (loadavg): 0.98 0.93 0.91 2/54 537
Raw data (stat): 535 (pb2sat) R 534 22056 22055 0 -1 0 191582 0 0 0 5591 408 0 0 25 0 1 0 864631509 591335424 102385 4294967295 134512640 135726644 3221224576 3218501628 135105707 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 144369 102385 300 300 0 144069 0
vsize: 577476
[startup+70.005 s]
Raw data (loadavg): 0.98 0.94 0.91 2/54 537
Raw data (stat): 535 (pb2sat) R 534 22056 22055 0 -1 0 203980 0 0 0 6565 435 0 0 25 0 1 0 864631509 630296576 114577 4294967295 134512640 135726644 3221224576 3218435752 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153881 114577 300 300 0 153581 0
vsize: 615524
[startup+80.0053 s]
Raw data (loadavg): 0.98 0.94 0.91 2/54 537
Raw data (stat): 535 (pb2sat) R 534 22056 22055 0 -1 0 224401 0 0 0 7524 476 0 0 25 0 1 0 864631509 662241280 134764 4294967295 134512640 135726644 3221224576 3218438896 134557510 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161680 134765 300 300 0 161380 0
vsize: 646720
[startup+90.0061 s]
Raw data (loadavg): 0.98 0.94 0.91 2/54 537
Raw data (stat): 535 (pb2sat) R 534 22056 22055 0 -1 0 244558 0 0 0 8481 519 0 0 25 0 1 0 864631509 693022720 154687 4294967295 134512640 135726644 3221224576 3218481352 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 169195 154687 300 300 0 168895 0
vsize: 676780
[startup+100.007 s]
Raw data (loadavg): 0.99 0.94 0.91 2/54 537
Raw data (stat): 535 (pb2sat) R 534 22056 22055 0 -1 0 258454 0 0 0 9457 543 0 0 25 0 1 0 864631509 765108224 168393 4294967295 134512640 135726644 3221224576 3221222716 135280433 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 186794 168393 300 300 0 186494 0
vsize: 747176
[startup+110.007 s]
Raw data (loadavg): 0.99 0.94 0.91 2/54 537
Raw data (stat): 535 (pb2sat) R 534 22056 22055 0 -1 0 258455 0 0 0 10443 557 0 0 25 0 1 0 864631509 404385792 98204 4294967295 134512640 135726644 3221224576 3221222928 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 98727 98204 300 300 0 98427 0
vsize: 394908
[startup+110.245 s]
Raw data (loadavg): 0.99 0.94 0.91 1/53 537
Raw data (stat): 535 (pb2sat) R 534 22056 22055 0 -1 0 258455 0 0 0 10443 557 0 0 25 0 1 0 864631509 404385792 98204 4294967295 134512640 135726644 3221224576 3221222928 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 98727 98204 300 300 0 98427 0
vsize: 0

Child status: 1
Real time (s): 110.244
CPU time (s): 110.247
CPU user time (s): 104.468
CPU system time (s): 5.77912
CPU usage (%): 100.003
Max. virtual memory (Kb): 747176
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####