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-fast0507.opb
MD5SUM38504d32a17a57a658eee171614b901e
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 324
Optimality of the best value was proved NO
Number of terms in the objective function 63009
Biggest coefficient in the objective function 2
Number of bits for the biggest coefficient in the objective function 2
Sum of the numbers in the objective function 122425
Number of bits of the sum of numbers in the objective function 17
Biggest number in a constraint 2
Number of bits of the biggest number in a constraint 2
Biggest sum of numbers in a constraint 122425
Number of bits of the biggest sum of numbers17
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.17
Number of variables63009
Total number of constraints63516
Number of constraints which are clauses507
Number of constraints which are cardinality constraints (but not clauses)63009
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint7753

Trace number 16703 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc24 THE 2005-04-21 08:31:35 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=12531 boxname=wulflinc24 idbench=964 idsolver=12 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  38504d32a17a57a658eee171614b901e  /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-fast0507.opb
REAL COMMAND:  minisat+ -cb -gs /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-fast0507.opb /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-fast0507.opb
IDLAUNCH: 12531
/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:        777292 kB
Buffers:         10352 kB
Cached:         221308 kB
SwapCached:        492 kB
Active:          24772 kB
Inactive:       208840 kB
HighTotal:      131008 kB
HighFree:        49504 kB
LowTotal:       903652 kB
LowFree:        727788 kB
SwapTotal:     2097892 kB
SwapFree:      2096476 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5108 kB
Slab:            17992 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-21 08:32:26 (client local time) WITH STATUS 0 IN 50.4723 SECONDS
stats: 12531 7 50.4723 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 494 PB-constraints to clauses...
c   -- Unit propagations: (none)
c   -- Detecting intervals from adjacent constraints: ==
c   -- Clauses(.)/Splits(s): .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |     487   407371 |     162       0        0     nan |  0.000 % |
#### 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
Raw data (loadavg): 0.93 0.98 0.95 2/54 29845
Raw data (stat): 29845 (runsolver) R 29844 28546 28545 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 543656432 1052672 99 4294967295 134512640 135381576 3221224432 3221219676 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.001 s]
Raw data (loadavg): 1.01 1.00 0.95 2/54 29845
Raw data (stat): 29845 (minisat+) R 29844 28546 28545 0 -1 0 31894 0 0 0 911 88 0 0 25 0 1 0 543656432 133447680 25949 4294967295 134512640 134672761 3221224528 3221222488 1075350483 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 32580 25949 603 41 0 32539 0
vsize: 130320
[startup+20.0018 s]
Raw data (loadavg): 1.01 1.00 0.95 2/54 29845
Raw data (stat): 29845 (minisat+) R 29844 28546 28545 0 -1 0 88751 0 0 0 1789 210 0 0 25 0 1 0 543656432 356810752 77533 4294967295 134512640 134672761 3221224528 3221222096 134523714 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 87112 77533 603 41 0 87071 0
vsize: 348448
[startup+30.0022 s]
Raw data (loadavg): 1.01 1.00 0.95 2/54 29845
Raw data (stat): 29845 (minisat+) R 29844 28546 28545 0 -1 0 118327 0 0 0 2723 275 0 0 25 0 1 0 543656432 405929984 95947 4294967295 134512640 134672761 3221224528 3221205248 134542563 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 99104 95953 603 41 0 99063 0
vsize: 396416
[startup+40.0029 s]
Raw data (loadavg): 1.01 1.00 0.95 2/54 29845
Raw data (stat): 29845 (minisat+) R 29844 28546 28545 0 -1 0 177087 0 0 0 3576 423 0 0 25 0 1 0 543656432 736321536 154705 4294967295 134512640 134672761 3221224528 3221200752 1075350517 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 179766 154707 603 41 0 179725 0
vsize: 719064
[startup+50.0033 s]
Raw data (loadavg): 1.00 1.00 0.95 2/54 29845
Raw data (stat): 29845 (minisat+) R 29844 28546 28545 0 -1 0 231118 0 0 0 4446 553 0 0 25 0 1 0 543656432 898125824 208672 4294967295 134512640 134672761 3221224528 3221195448 1075350160 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 219269 208673 603 41 0 219228 0
vsize: 877076
[startup+50.4742 s]
Raw data (loadavg): 1.00 1.00 0.95 1/53 29845
Raw data (stat): 29845 (minisat+) R 29844 28546 28545 0 -1 0 231118 0 0 0 4446 553 0 0 25 0 1 0 543656432 898125824 208672 4294967295 134512640 134672761 3221224528 3221195448 1075350160 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 219269 208673 603 41 0 219228 0
vsize: 0

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 50.474
CPU time (s): 50.4723
CPU user time (s): 44.5052
CPU system time (s): 5.96709
CPU usage (%): 99.9966
Max. virtual memory (Kb): 877076
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####