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/MIPLIB/miplib2003/normalized-mps-v2-13-7-dano3mip.opb
MD5SUMb6a39917c8daf46435ad718b26e9c6f0
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 20
Biggest coefficient in the objective function 524288
Number of bits for the biggest coefficient in the objective function 20
Sum of the numbers in the objective function 1048575
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 65536000
Number of bits of the biggest number in a constraint 26
Biggest sum of numbers in a constraint 555744750
Number of bits of the biggest sum of numbers30
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables266924
Total number of constraints3778
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)600
Number of constraints which are nor clauses,nor cardinality constraints3178
Minimum length of a constraint1
Maximum length of a constraint10600

Trace number 42826

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 16:03:26 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26046 boxname=wulflinc4 idbench=1346 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b6a39917c8daf46435ad718b26e9c6f0  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-dano3mip.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-dano3mip.opb
IDLAUNCH: 26046
/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:        714320 kB
Buffers:         13472 kB
Cached:         284076 kB
SwapCached:        904 kB
Active:          52200 kB
Inactive:       247464 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        714068 kB
SwapTotal:     2097136 kB
SwapFree:      2095236 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14888 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 16:05:05 (client local time) WITH STATUS 1 IN 97.8771 SECONDS
stats: 26046 7 97.8771 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): 0.93 0.95 0.90 2/54 29587
Raw data (stat): 29587 (runsolver) R 29586 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 972044718 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+10.0011 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 29587
Raw data (stat): 29587 (pb2sat-v2) R 29586 21152 21151 0 -1 0 25265 0 0 0 947 51 0 0 25 0 1 0 972044718 76673024 14311 4294967295 134512640 135730672 3221224576 3221136348 134770138 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 18719 14311 301 301 0 18418 0
vsize: 74876
[startup+20.0019 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 29587
Raw data (stat): 29587 (pb2sat-v2) R 29586 21152 21151 0 -1 0 52730 0 0 0 1883 115 0 0 25 0 1 0 972044718 152932352 30789 4294967295 134512640 135730672 3221224576 3221038148 135281187 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 37337 30789 301 301 0 37036 0
vsize: 149348
[startup+30.0022 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 29587
Raw data (stat): 29587 (pb2sat-v2) R 29586 21152 21151 0 -1 0 91459 0 0 0 2802 195 0 0 25 0 1 0 972044718 301801472 47826 4294967295 134512640 135730672 3221224576 3221094064 134784086 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73682 47826 301 301 0 73381 0
vsize: 294728
[startup+40.0033 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 29587
Raw data (stat): 29587 (pb2sat-v2) R 29586 21152 21151 0 -1 0 107052 0 0 0 3764 233 0 0 25 0 1 0 972044718 305045504 63147 4294967295 134512640 135730672 3221224576 3221148184 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 74474 63147 301 301 0 74173 0
vsize: 297896
[startup+50.0045 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 29587
Raw data (stat): 29587 (pb2sat-v2) R 29586 21152 21151 0 -1 0 149318 0 0 0 4681 316 0 0 25 0 1 0 972044718 442728448 86821 4294967295 134512640 135730672 3221224576 3221118384 134611309 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 108088 86821 301 301 0 107787 0
vsize: 432352
[startup+60.0037 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 29587
Raw data (stat): 29587 (pb2sat-v2) R 29586 21152 21151 0 -1 0 185238 0 0 0 5597 400 0 0 25 0 1 0 972044718 576946176 97959 4294967295 134512640 135730672 3221224576 3221135100 134637875 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 140856 97959 301 301 0 140555 0
vsize: 563424
[startup+70.0039 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 29587
Raw data (stat): 29587 (pb2sat-v2) R 29586 21152 21151 0 -1 0 200680 0 0 0 6559 438 0 0 25 0 1 0 972044718 576946176 113121 4294967295 134512640 135730672 3221224576 3221121400 135282201 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 140856 113122 301 301 0 140555 0
vsize: 563424
[startup+80.0048 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 29587
Raw data (stat): 29587 (pb2sat-v2) R 29586 21152 21151 0 -1 0 216203 0 0 0 7519 478 0 0 25 0 1 0 972044718 578224128 128373 4294967295 134512640 135730672 3221224576 3220901120 134786278 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 141168 128373 301 301 0 140867 0
vsize: 564672
[startup+90.0053 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 29587
Raw data (stat): 29587 (pb2sat-v2) R 29586 21152 21151 0 -1 0 231575 0 0 0 8482 515 0 0 25 0 1 0 972044718 642883584 143534 4294967295 134512640 135730672 3221224576 3220830176 134770688 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 156954 143534 301 301 0 156653 0
vsize: 627816
[startup+97.9075 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 29587
Raw data (stat): 29587 (pb2sat-v2) R 29586 21152 21151 0 -1 0 231575 0 0 0 8482 515 0 0 25 0 1 0 972044718 642883584 143534 4294967295 134512640 135730672 3221224576 3220830176 134770688 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 156954 143534 301 301 0 156653 0
vsize: 0

Child status: 1
Real time (s): 97.9073
CPU time (s): 97.8771
CPU user time (s): 92.202
CPU system time (s): 5.67514
CPU usage (%): 99.9692
Max. virtual memory (Kb): 627816
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####