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-adlittle.opb
MD5SUM1bb3cde4ae28db77cb8e051d278e83a5
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 2460
Biggest coefficient in the objective function 88852135936000
Number of bits for the biggest coefficient in the objective function 47
Sum of the numbers in the objective function 3689448844530141
Number of bits of the sum of numbers in the objective function 52
Biggest number in a constraint 359703511040000
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 6054438712178314
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 benchmark0.030994
Number of variables2910
Total number of constraints56
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 constraints56
Minimum length of a constraint30
Maximum length of a constraint810

Trace number 35020 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-05-28 12:00:01 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24332 boxname=wulflinc4 idbench=804 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1bb3cde4ae28db77cb8e051d278e83a5  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-adlittle.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-adlittle.opb
IDLAUNCH: 24332
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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		: 451.169
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:        756548 kB
Buffers:         34164 kB
Cached:         223188 kB
SwapCached:        504 kB
Active:          21944 kB
Inactive:       237800 kB
HighTotal:      131008 kB
HighFree:        43064 kB
LowTotal:       903652 kB
LowFree:        713484 kB
SwapTotal:     2097136 kB
SwapFree:      2096000 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5796 kB
Slab:            12664 kB
Committed_AS:    71792 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:01:56 (client local time) WITH STATUS 1 IN 114.488 SECONDS
stats: 24332 7 114.488 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): 0.91 0.94 0.90 2/54 29580
Raw data (stat): 29580 (runsolver) R 29579 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806403480 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+10.0158 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 29633
Raw data (stat): 29580 (pb2sat) R 29579 21152 21151 0 -1 0 28925 0 0 0 935 64 0 0 25 0 1 0 806403480 89702400 17795 4294967295 134512640 135726644 3221224576 3220235936 135280580 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21900 17795 300 300 0 21600 0
vsize: 87600
[startup+20.0442 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 29633
Raw data (stat): 29580 (pb2sat) R 29579 21152 21151 0 -1 0 57062 0 0 0 1880 123 0 0 25 0 1 0 806403480 175525888 34720 4294967295 134512640 135726644 3221224576 3220239432 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42853 34720 300 300 0 42553 0
vsize: 171412
[startup+30.0454 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 29633
Raw data (stat): 29580 (pb2sat) R 29579 21152 21151 0 -1 0 96883 0 0 0 2804 199 0 0 25 0 1 0 806403480 299302912 52359 4294967295 134512640 135726644 3221224576 3220241312 135288897 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73072 52359 300 300 0 72772 0
vsize: 292288
[startup+40.0459 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 29633
Raw data (stat): 29580 (pb2sat) R 29579 21152 21151 0 -1 0 112104 0 0 0 3775 228 0 0 25 0 1 0 806403480 345292800 67359 4294967295 134512640 135726644 3221224576 3220239432 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84300 67359 300 300 0 84000 0
vsize: 337200
[startup+50.0468 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 29633
Raw data (stat): 29580 (pb2sat) R 29579 21152 21151 0 -1 0 132080 0 0 0 4740 263 0 0 25 0 1 0 806403480 516968448 87105 4294967295 134512640 135726644 3221224576 3220235324 135297998 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 126213 87110 300 300 0 125913 0
vsize: 504852
[startup+60.0467 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 29633
Raw data (stat): 29580 (pb2sat) R 29579 21152 21151 0 -1 0 192033 0 0 0 5620 384 0 0 25 0 1 0 806403480 596885504 102942 4294967295 134512640 135726644 3221224576 3220238128 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 145724 102942 300 300 0 145424 0
vsize: 582896
[startup+70.0476 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 29633
Raw data (stat): 29580 (pb2sat) R 29579 21152 21151 0 -1 0 203108 0 0 0 6596 407 0 0 25 0 1 0 806403480 630439936 113817 4294967295 134512640 135726644 3221224576 3220242064 134767079 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153916 113817 300 300 0 153616 0
vsize: 615664
[startup+80.0484 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 29635
Raw data (stat): 29580 (pb2sat) R 29579 21152 21151 0 -1 0 220008 0 0 0 7562 442 0 0 25 0 1 0 806403480 647208960 130486 4294967295 134512640 135726644 3221224576 3220250136 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 158010 130488 300 300 0 157710 0
vsize: 632040
[startup+90.0496 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 29635
Raw data (stat): 29580 (pb2sat) R 29579 21152 21151 0 -1 0 240307 0 0 0 8523 482 0 0 25 0 1 0 806403480 677150720 150546 4294967295 134512640 135726644 3221224576 3220247292 134604415 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 165320 150547 300 300 0 165020 0
vsize: 661280
[startup+100.05 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 29635
Raw data (stat): 29580 (pb2sat) R 29579 21152 21151 0 -1 0 255942 0 0 0 9493 512 0 0 25 0 1 0 806403480 750080000 165998 4294967295 134512640 135726644 3221224576 3220241292 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 183125 165998 300 300 0 182825 0
vsize: 732500
[startup+110.051 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 29635
Raw data (stat): 29580 (pb2sat) R 29579 21152 21151 0 -1 0 263703 0 0 0 10463 542 0 0 25 0 1 0 806403480 401494016 97550 4294967295 134512640 135726644 3221224576 3221222764 135277577 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 98021 97550 300 300 0 97721 0
vsize: 392084
[startup+114.494 s]
Raw data (loadavg): 1.00 0.97 0.91 1/53 29635
Raw data (stat): 29580 (pb2sat) R 29579 21152 21151 0 -1 0 263703 0 0 0 10463 542 0 0 25 0 1 0 806403480 401494016 97550 4294967295 134512640 135726644 3221224576 3221222764 135277577 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 98021 97550 300 300 0 97721 0
vsize: 0

Child status: 1
Real time (s): 114.49
CPU time (s): 114.488
CPU user time (s): 108.859
CPU system time (s): 5.62814
CPU usage (%): 99.9978
Max. virtual memory (Kb): 732500
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####