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).
    Note that some very long lines in this section may be truncated by your web browser !
  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

Namemps-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 10389

Launcher Data

LAUNCH ON wulflinc3 THE 2005-09-23 18:04:43 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9150 boxname=wulflinc3 idbench=946 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b6a39917c8daf46435ad718b26e9c6f0  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-dano3mip.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-dano3mip.opb
IDLAUNCH: 9150
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.228
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		: 451.228
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:        899156 kB
Buffers:         13492 kB
Cached:         104352 kB
SwapCached:          0 kB
Active:          69264 kB
Inactive:        51472 kB
HighTotal:      131008 kB
HighFree:        22344 kB
LowTotal:       903652 kB
LowFree:        876812 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9108 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 18:06:15 (client local time) WITH STATUS 0 IN 89.3684 SECONDS
stats: 9150 7 89.3684 0

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
s UNKNOWN

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/10140/stat): 10140 (pb2sat) R 10139 10140 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22223970 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10140/statm): 373 2 364 364 0 9 0
[pid=10140] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-dano3mip.opb

[startup+10.0019 s]
Raw data (loadavg): 0.92 0.96 0.93 2/55 10140
Raw data (/proc/10140/stat): 10140 (pb2sat) R 10139 10140 4060 0 -1 0 26744 0 0 0 938 58 0 0 25 0 1 0 22223970 80576512 15610 4294967295 134512640 135987407 3221224560 3221116576 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10140/statm): 19672 15610 364 364 0 19308 0
[pid=10140] vsize: 78688
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 78688

[startup+20.0027 s]
Raw data (loadavg): 0.93 0.96 0.93 2/55 10140
Raw data (/proc/10140/stat): 10140 (pb2sat) R 10139 10140 4060 0 -1 0 55250 0 0 0 1870 124 0 0 25 0 1 0 22223970 158830592 32865 4294967295 134512640 135987407 3221224560 3221107124 135479892 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10140/statm): 38777 32865 364 364 0 38413 0
[pid=10140] vsize: 155108
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 155108

[startup+30.0036 s]
Raw data (loadavg): 0.94 0.96 0.93 2/55 10140
Raw data (/proc/10140/stat): 10140 (pb2sat) R 10139 10140 4060 0 -1 0 95161 0 0 0 2779 214 0 0 25 0 1 0 22223970 309526528 50562 4294967295 134512640 135987407 3221224560 3221221360 135477314 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10140/statm): 75568 50562 364 364 0 75204 0
[pid=10140] vsize: 302272
Current children cumulated CPU time (s) 29.93
Current children cumulated vsize (Kb) 302272

[startup+40.0044 s]
Raw data (loadavg): 0.95 0.96 0.93 2/55 10140
Raw data (/proc/10140/stat): 10140 (pb2sat) R 10139 10140 4060 0 -1 0 112197 0 0 0 3734 258 0 0 25 0 1 0 22223970 315203584 67315 4294967295 134512640 135987407 3221224560 3221192052 135477877 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10140/statm): 76954 67316 364 364 0 76590 0
[pid=10140] vsize: 307816
Current children cumulated CPU time (s) 39.92
Current children cumulated vsize (Kb) 307816

[startup+50.0052 s]
Raw data (loadavg): 0.96 0.96 0.93 2/55 10140
Raw data (/proc/10140/stat): 10140 (pb2sat) R 10139 10140 4060 0 -1 0 173899 0 0 0 4599 388 0 0 25 0 1 0 22223970 645152768 109409 4294967295 134512640 135987407 3221224560 3221150176 134887487 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10140/statm): 157508 109413 364 364 0 157144 0
[pid=10140] vsize: 630032
Current children cumulated CPU time (s) 49.87
Current children cumulated vsize (Kb) 630032

[startup+60.005 s]
Raw data (loadavg): 0.96 0.96 0.93 2/55 10142
Raw data (/proc/10140/stat): 10140 (pb2sat) R 10139 10140 4060 0 -1 0 191787 0 0 0 5553 434 0 0 25 0 1 0 22223970 582905856 102483 4294967295 134512640 135987407 3221224560 3221158384 134856594 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10140/statm): 142311 102484 364 364 0 141947 0
[pid=10140] vsize: 569244
Current children cumulated CPU time (s) 59.87
Current children cumulated vsize (Kb) 569244

[startup+70.0049 s]
Raw data (loadavg): 0.97 0.96 0.93 2/55 10142
Raw data (/proc/10140/stat): 10140 (pb2sat) R 10139 10140 4060 0 -1 0 208748 0 0 0 6511 476 0 0 25 0 1 0 22223970 588447744 119162 4294967295 134512640 135987407 3221224560 3221089024 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10140/statm): 143664 119163 364 364 0 143300 0
[pid=10140] vsize: 574656
Current children cumulated CPU time (s) 69.87
Current children cumulated vsize (Kb) 574656

[startup+80.0057 s]
Raw data (loadavg): 0.97 0.96 0.93 2/55 10142
Raw data (/proc/10140/stat): 10140 (pb2sat) R 10139 10140 4060 0 -1 0 224407 0 0 0 7469 517 0 0 25 0 1 0 22223970 646623232 134576 4294967295 134512640 135987407 3221224560 3221159008 134877708 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10140/statm): 157867 134576 364 364 0 157503 0
[pid=10140] vsize: 631468
Current children cumulated CPU time (s) 79.86
Current children cumulated vsize (Kb) 631468



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+89.1428 s]
Raw data (loadavg): 0.98 0.96 0.93 1/55 10142
Raw data (/proc/10140/stat): 10140 (pb2sat) T 10139 10140 4060 0 -1 0 242178 0 0 0 8340 558 0 0 25 0 1 0 22223970 943734784 151974 4294967295 134512640 135987407 3221224560 3221144332 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/10140/statm): 230404 151974 364 364 0 230040 0
[pid=10140] vsize: 921616
Current children cumulated CPU time (s) 88.98
Current children cumulated vsize (Kb) 921616

Sending SIGTERM to -10140
Sleeping 2 seconds

[startup+90.0056 s]
Raw data (loadavg): 0.98 0.96 0.93 1/56 10143
Raw data (/proc/10140/stat): 10140 (pb2sat) S 10139 10140 4060 0 -1 0 242179 0 0 0 8347 558 0 0 17 0 1 0 22223970 943734784 151975 4294967295 134512640 135987407 3221224560 3221142840 135549753 0 16384 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10140/statm): 230404 151975 364 364 0 230040 0
[pid=10140] vsize: 921616
Current children cumulated CPU time (s) 89.05
Current children cumulated vsize (Kb) 921616
Sending SIGKILL to -10140
One traced child (pid=10140) ended because it received signal 9 (SIGKILL)
All traced children have exited ! Game is over.

Child ended because it received signal 9 (SIGKILL)
Real time (s): 91.4584
CPU time (s): 89.3684
CPU user time (s): 83.4743
CPU system time (s): 5.8941
CPU usage (%): 97.7149
Max. virtual memory (cumulated for all children) (Kb): 921616

Verifier Data

ERROR: no interpretation found !