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-v2-13-7/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-bnl1.opb
MD5SUM03a27b3b499acf5b0d4b0eee83413d97
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 19660
Biggest coefficient in the objective function 12635026227200
Number of bits for the biggest coefficient in the objective function 44
Sum of the numbers in the objective function 1038651120525150
Number of bits of the sum of numbers in the objective function 50
Biggest number in a constraint 12635026227200
Number of bits of the biggest number in a constraint 44
Biggest sum of numbers in a constraint 1038651120525150
Number of bits of the biggest sum of numbers50
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.202968
Number of variables23500
Total number of constraints632
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 constraints632
Minimum length of a constraint20
Maximum length of a constraint1520

Trace number 35417 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc19 THE 2005-05-28 13:08:34 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24724 boxname=wulflinc19 idbench=1196 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  03a27b3b499acf5b0d4b0eee83413d97  /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-13-7-bnl1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-13-7-bnl1.opb
IDLAUNCH: 24724
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.037
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		: 451.037
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:        964464 kB
Buffers:          3556 kB
Cached:          45256 kB
SwapCached:       1032 kB
Active:          21320 kB
Inactive:        29540 kB
HighTotal:      131008 kB
HighFree:        95536 kB
LowTotal:       903652 kB
LowFree:        868928 kB
SwapTotal:     2097892 kB
SwapFree:      2095980 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4896 kB
Slab:            13616 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:10:34 (client local time) WITH STATUS 1 IN 119.296 SECONDS
stats: 24724 7 119.296 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 0.95 0.90 2/54 20729
Raw data (stat): 20729 (runsolver) R 20728 10795 10794 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 865037336 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+10.0009 s]
Raw data (loadavg): 0.92 0.95 0.90 2/54 20729
Raw data (stat): 20729 (pb2sat) R 20728 10795 10794 0 -1 0 13102 0 0 0 967 31 0 0 25 0 1 0 865037336 42897408 9132 4294967295 134512640 135726644 3221224592 3213345068 134560228 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 10473 9132 300 300 0 10173 0
vsize: 41892
[startup+20.0013 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 20729
Raw data (stat): 20729 (pb2sat) R 20728 10795 10794 0 -1 0 43677 0 0 0 1898 100 0 0 25 0 1 0 865037336 133754880 27594 4294967295 134512640 135726644 3221224592 3213347368 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 32655 27594 300 300 0 32355 0
vsize: 130620
[startup+30.0041 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 20729
Raw data (stat): 20729 (pb2sat) R 20728 10795 10794 0 -1 0 74139 0 0 0 2834 164 0 0 25 0 1 0 865037336 279457792 51444 4294967295 134512640 135726644 3221224592 3213360376 135280835 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 68227 51444 300 300 0 67927 0
vsize: 272908
[startup+40.0045 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 20729
Raw data (stat): 20729 (pb2sat) R 20728 10795 10794 0 -1 0 103655 0 0 0 3767 231 0 0 25 0 1 0 865037336 340869120 59026 4294967295 134512640 135726644 3221224592 3213355680 134739297 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 83220 59026 300 300 0 82920 0
vsize: 332880
[startup+50.0047 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 20729
Raw data (stat): 20729 (pb2sat) R 20728 10795 10794 0 -1 0 124027 0 0 0 4731 267 0 0 25 0 1 0 865037336 369278976 79154 4294967295 134512640 135726644 3221224592 3213361008 134607297 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 90156 79154 300 300 0 89856 0
vsize: 360624
[startup+60.0056 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 20729
Raw data (stat): 20729 (pb2sat) R 20728 10795 10794 0 -1 0 164757 0 0 0 5656 343 0 0 25 0 1 0 865037336 503721984 100304 4294967295 134512640 135726644 3221224592 3213364400 135280436 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 122979 100304 300 300 0 122679 0
vsize: 491916
[startup+70.007 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 20729
Raw data (stat): 20729 (pb2sat) R 20728 10795 10794 0 -1 0 200518 0 0 0 6582 417 0 0 25 0 1 0 865037336 604385280 111283 4294967295 134512640 135726644 3221224592 3213384944 134554559 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 147555 111283 300 300 0 147255 0
vsize: 590220
[startup+80.0082 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 20729
Raw data (stat): 20729 (pb2sat) R 20728 10795 10794 0 -1 0 213274 0 0 0 7556 443 0 0 25 0 1 0 865037336 644022272 123839 4294967295 134512640 135726644 3221224592 3213371612 135298000 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 157232 123839 300 300 0 156932 0
vsize: 628928
[startup+90.008 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 20729
Raw data (stat): 20729 (pb2sat) R 20728 10795 10794 0 -1 0 233703 0 0 0 8515 484 0 0 25 0 1 0 865037336 674045952 144031 4294967295 134512640 135726644 3221224592 3213390908 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 164562 144031 300 300 0 164262 0
vsize: 658248
[startup+100.008 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 20729
Raw data (stat): 20729 (pb2sat) R 20728 10795 10794 0 -1 0 250077 0 0 0 9482 518 0 0 25 0 1 0 865037336 748052480 160216 4294967295 134512640 135726644 3221224592 3213368016 134780435 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 182630 160216 300 300 0 182330 0
vsize: 730520
[startup+110.01 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 20729
Raw data (stat): 20729 (pb2sat) R 20728 10795 10794 0 -1 0 264679 0 0 0 10454 546 0 0 25 0 1 0 865037336 769941504 174569 4294967295 134512640 135726644 3221224592 3221222480 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 187974 174569 300 300 0 187674 0
vsize: 751896
[startup+119.3 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 20729
Raw data (stat): 20729 (pb2sat) R 20728 10795 10794 0 -1 0 264679 0 0 0 10454 546 0 0 25 0 1 0 865037336 769941504 174569 4294967295 134512640 135726644 3221224592 3221222480 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 187974 174569 300 300 0 187674 0
vsize: 0

Child status: 1
Real time (s): 119.3
CPU time (s): 119.296
CPU user time (s): 113.471
CPU system time (s): 5.82511
CPU usage (%): 99.9969
Max. virtual memory (Kb): 751896
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####