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/miplib2003/normalized-mps-v2-20-10-manna81.opb
MD5SUM8ad66f5ec9923fdfb526351beaad3554
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -11560
Optimality of the best value was proved NO
Number of terms in the objective function 10713
Biggest coefficient in the objective function 8
Number of bits for the biggest coefficient in the objective function 4
Sum of the numbers in the objective function 30411
Number of bits of the sum of numbers in the objective function 15
Biggest number in a constraint 24
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 30411
Number of bits of the biggest sum of numbers15
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1175.16
Number of variables10713
Total number of constraints9801
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)18
Number of constraints which are nor clauses,nor cardinality constraints9783
Minimum length of a constraint1
Maximum length of a constraint8

Trace number 35194 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc24 THE 2005-05-28 12:24:11 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24500 boxname=wulflinc24 idbench=972 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  8ad66f5ec9923fdfb526351beaad3554  /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-manna81.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-manna81.opb
IDLAUNCH: 24500
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.080
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	: 3
cpu MHz		: 451.080
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:        709008 kB
Buffers:         36024 kB
Cached:         267300 kB
SwapCached:        636 kB
Active:          21392 kB
Inactive:       284088 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        708756 kB
SwapTotal:     2097892 kB
SwapFree:      2096360 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5148 kB
Slab:            14348 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:26:04 (client local time) WITH STATUS 1 IN 112.556 SECONDS
stats: 24500 7 112.556 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): 0.90 0.93 0.90 2/54 20848
Raw data (stat): 20848 (runsolver) R 20847 4613 4612 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864776337 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+10.0012 s]
Raw data (loadavg): 0.92 0.93 0.90 2/54 20848
Raw data (stat): 20848 (pb2sat) R 20847 4613 4612 0 -1 0 26832 0 0 0 941 58 0 0 25 0 1 0 864776337 88993792 15740 4294967295 134512640 135726644 3221224576 3219280784 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21727 15740 300 300 0 21427 0
vsize: 86908
[startup+20.0024 s]
Raw data (loadavg): 1.00 0.95 0.91 2/54 20848
Raw data (stat): 20848 (pb2sat) R 20847 4613 4612 0 -1 0 55956 0 0 0 1879 120 0 0 25 0 1 0 864776337 175931392 33899 4294967295 134512640 135726644 3221224576 3218612928 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42952 33899 300 300 0 42652 0
vsize: 171808
[startup+30.0031 s]
Raw data (loadavg): 1.00 0.95 0.91 2/54 20848
Raw data (stat): 20848 (pb2sat) R 20847 4613 4612 0 -1 0 97196 0 0 0 2795 204 0 0 25 0 1 0 864776337 302600192 53458 4294967295 134512640 135726644 3221224576 3217865680 134783203 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73877 53458 300 300 0 73577 0
vsize: 295508
[startup+40.0033 s]
Raw data (loadavg): 1.00 0.95 0.91 2/54 20848
Raw data (stat): 20848 (pb2sat) R 20847 4613 4612 0 -1 0 113147 0 0 0 3760 239 0 0 25 0 1 0 864776337 348184576 69177 4294967295 134512640 135726644 3221224576 3217608528 134554549 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85006 69177 300 300 0 84706 0
vsize: 340024
[startup+50.0094 s]
Raw data (loadavg): 1.00 0.95 0.91 2/54 20848
Raw data (stat): 20848 (pb2sat) R 20847 4613 4612 0 -1 0 134983 0 0 0 4714 285 0 0 25 0 1 0 864776337 522289152 90722 4294967295 134512640 135726644 3221224576 3218032160 134771916 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 127512 90722 300 300 0 127212 0
vsize: 510048
[startup+60.0097 s]
Raw data (loadavg): 1.00 0.95 0.91 2/54 20848
Raw data (stat): 20848 (pb2sat) R 20847 4613 4612 0 -1 0 194438 0 0 0 5595 404 0 0 25 0 1 0 864776337 599089152 107118 4294967295 134512640 135726644 3221224576 3218612336 135281504 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 146262 107118 300 300 0 145962 0
vsize: 585048
[startup+70.0104 s]
Raw data (loadavg): 1.00 0.95 0.91 2/54 20848
Raw data (stat): 20848 (pb2sat) R 20847 4613 4612 0 -1 0 206510 0 0 0 6569 431 0 0 25 0 1 0 864776337 632643584 118974 4294967295 134512640 135726644 3221224576 3217500492 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154454 118974 300 300 0 154154 0
vsize: 617816
[startup+80.0165 s]
Raw data (loadavg): 1.00 0.95 0.91 2/54 20848
Raw data (stat): 20848 (pb2sat) R 20847 4613 4612 0 -1 0 225395 0 0 0 7528 472 0 0 25 0 1 0 864776337 655892480 137626 4294967295 134512640 135726644 3221224576 3220665696 134604463 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 160130 137626 300 300 0 159830 0
vsize: 640520
[startup+90.0168 s]
Raw data (loadavg): 1.00 0.95 0.91 2/54 20848
Raw data (stat): 20848 (pb2sat) R 20847 4613 4612 0 -1 0 242036 0 0 0 8492 508 0 0 25 0 1 0 864776337 730148864 154072 4294967295 134512640 135726644 3221224576 3218072800 134780435 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 178259 154072 300 300 0 177959 0
vsize: 713036
[startup+100.017 s]
Raw data (loadavg): 1.00 0.95 0.91 2/54 20848
Raw data (stat): 20848 (pb2sat) R 20847 4613 4612 0 -1 0 261264 0 0 0 9453 548 0 0 25 0 1 0 864776337 757723136 173077 4294967295 134512640 135726644 3221224576 3218148092 134604474 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 184991 173077 300 300 0 184691 0
vsize: 739964
[startup+110.018 s]
Raw data (loadavg): 1.00 0.95 0.91 2/54 20848
Raw data (stat): 20848 (pb2sat) R 20847 4613 4612 0 -1 0 265745 0 0 0 10443 557 0 0 25 0 1 0 864776337 764858368 177464 4294967295 134512640 135726644 3221224576 3221222828 135277563 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 186733 177464 300 300 0 186433 0
vsize: 746932
[startup+112.567 s]
Raw data (loadavg): 1.00 0.95 0.91 1/53 20848
Raw data (stat): 20848 (pb2sat) R 20847 4613 4612 0 -1 0 265745 0 0 0 10443 557 0 0 25 0 1 0 864776337 764858368 177464 4294967295 134512640 135726644 3221224576 3221222828 135277563 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 186733 177464 300 300 0 186433 0
vsize: 0

Child status: 1
Real time (s): 112.566
CPU time (s): 112.556
CPU user time (s): 106.623
CPU system time (s): 5.9331
CPU usage (%): 99.9906
Max. virtual memory (Kb): 746932
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####