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/miplib/normalized-mps-v2-13-7-pipex.opb
MD5SUMb9c1029cc1d97a8d60e984f96f5d3267
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 788263
Optimality of the best value was proved NO
Number of terms in the objective function 48
Biggest coefficient in the objective function 107865
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 2514082
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 107865
Number of bits of the biggest number in a constraint 17
Biggest sum of numbers in a constraint 2514082
Number of bits of the biggest sum of numbers22
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.02684
Number of variables48
Total number of constraints73
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)64
Number of constraints which are nor clauses,nor cardinality constraints9
Minimum length of a constraint1
Maximum length of a constraint16

Trace number 35557 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc11 THE 2005-05-28 13:23:38 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24851 boxname=wulflinc11 idbench=1323 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b9c1029cc1d97a8d60e984f96f5d3267  /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-13-7-pipex.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-13-7-pipex.opb
IDLAUNCH: 24851
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.028
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	: 2
cpu MHz		: 451.028
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:        902512 kB
Buffers:         35156 kB
Cached:          75368 kB
SwapCached:        860 kB
Active:          49004 kB
Inactive:        63636 kB
HighTotal:      131008 kB
HighFree:        52640 kB
LowTotal:       903652 kB
LowFree:        849872 kB
SwapTotal:     2097136 kB
SwapFree:      2095396 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5072 kB
Slab:            13920 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:25:31 (client local time) WITH STATUS 1 IN 112.933 SECONDS
stats: 24851 7 112.933 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): 0.92 0.97 0.91 1/54 3665
Raw data (stat): 3665 (runsolver) R 3664 25830 25829 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806909781 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): 0.93 0.97 0.91 2/54 3665
Raw data (stat): 3665 (pb2sat) R 3664 25830 25829 0 -1 0 30286 0 0 0 936 63 0 0 25 0 1 0 806909781 91578368 19110 4294967295 134512640 135726644 3221224576 3221203600 135101187 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22358 19110 300 300 0 22058 0
vsize: 89432
[startup+20.0012 s]
Raw data (loadavg): 0.94 0.97 0.91 2/54 3665
Raw data (stat): 3665 (pb2sat) R 3664 25830 25829 0 -1 0 59012 0 0 0 1877 122 0 0 25 0 1 0 806909781 179236864 36607 4294967295 134512640 135726644 3221224576 3221204128 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43759 36607 300 300 0 43459 0
vsize: 175036
[startup+30.0024 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 3665
Raw data (stat): 3665 (pb2sat) R 3664 25830 25829 0 -1 0 96705 0 0 0 2805 195 0 0 25 0 1 0 806909781 294359040 52068 4294967295 134512640 135726644 3221224576 3221202128 134554579 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 71865 52068 300 300 0 71565 0
vsize: 287460
[startup+40.0032 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 3665
Raw data (stat): 3665 (pb2sat) R 3664 25830 25829 0 -1 0 114286 0 0 0 3768 231 0 0 25 0 1 0 806909781 350674944 69424 4294967295 134512640 135726644 3221224576 3221200592 134607725 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85614 69424 300 300 0 85314 0
vsize: 342456
[startup+50.0036 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 3665
Raw data (stat): 3665 (pb2sat) R 3664 25830 25829 0 -1 0 156473 0 0 0 4696 304 0 0 25 0 1 0 806909781 553881600 110219 4294967295 134512640 135726644 3221224576 3221204912 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 135225 110219 300 300 0 134925 0
vsize: 540900
[startup+60.0037 s]
Raw data (loadavg): 1.05 0.99 0.92 2/54 3665
Raw data (stat): 3665 (pb2sat) R 3664 25830 25829 0 -1 0 190832 0 0 0 5620 380 0 0 25 0 1 0 806909781 589176832 101409 4294967295 134512640 135726644 3221224576 3221201692 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 143842 101409 300 300 0 143542 0
vsize: 575368
[startup+70.0046 s]
Raw data (loadavg): 1.11 1.01 0.93 2/54 3665
Raw data (stat): 3665 (pb2sat) R 3664 25830 25829 0 -1 0 201508 0 0 0 6597 403 0 0 25 0 1 0 806909781 622731264 111889 4294967295 134512640 135726644 3221224576 3221201832 135280737 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 152034 111889 300 300 0 151734 0
vsize: 608136
[startup+80.0049 s]
Raw data (loadavg): 1.10 1.00 0.93 2/54 3665
Raw data (stat): 3665 (pb2sat) R 3664 25830 25829 0 -1 0 220756 0 0 0 7563 437 0 0 25 0 1 0 806909781 652345344 130918 4294967295 134512640 135726644 3221224576 3221201784 135279148 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 159264 130918 300 300 0 158964 0
vsize: 637056
[startup+90.0061 s]
Raw data (loadavg): 1.08 1.00 0.93 2/54 3665
Raw data (stat): 3665 (pb2sat) R 3664 25830 25829 0 -1 0 240203 0 0 0 8525 476 0 0 25 0 1 0 806909781 681975808 150140 4294967295 134512640 135726644 3221224576 3221205184 135280568 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 166498 150140 300 300 0 166198 0
vsize: 665992
[startup+100.007 s]
Raw data (loadavg): 1.07 1.00 0.93 2/54 3665
Raw data (stat): 3665 (pb2sat) R 3664 25830 25829 0 -1 0 255323 0 0 0 9493 507 0 0 25 0 1 0 806909781 755318784 165083 4294967295 134512640 135726644 3221224576 3221200592 134785050 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 184404 165083 300 300 0 184104 0
vsize: 737616
[startup+110.014 s]
Raw data (loadavg): 1.06 1.00 0.93 2/54 3665
Raw data (stat): 3665 (pb2sat) R 3664 25830 25829 0 -1 0 259610 0 0 0 10471 529 0 0 25 0 1 0 806909781 401997824 97383 4294967295 134512640 135726644 3221224576 3221222764 135277480 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 98144 97383 300 300 0 97844 0
vsize: 392576
[startup+112.938 s]
Raw data (loadavg): 1.05 1.00 0.93 1/53 3665
Raw data (stat): 3665 (pb2sat) R 3664 25830 25829 0 -1 0 259610 0 0 0 10471 529 0 0 25 0 1 0 806909781 401997824 97383 4294967295 134512640 135726644 3221224576 3221222764 135277480 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 98144 97383 300 300 0 97844 0
vsize: 0

Child status: 1
Real time (s): 112.938
CPU time (s): 112.933
CPU user time (s): 107.433
CPU system time (s): 5.50016
CPU usage (%): 99.9958
Max. virtual memory (Kb): 737616
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####