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/miplib/normalized-mps-v2-13-7-qiu.opb
MD5SUM3d2c1e8e1ac719fa835886a3b753eac3
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 5328
Biggest coefficient in the objective function 8885108736
Number of bits for the biggest coefficient in the objective function 34
Sum of the numbers in the objective function 4692033563496
Number of bits of the sum of numbers in the objective function 43
Biggest number in a constraint 8885108736
Number of bits of the biggest number in a constraint 34
Biggest sum of numbers in a constraint 4692033563496
Number of bits of the biggest sum of numbers43
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark98.758
Number of variables15888
Total number of constraints1192
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 constraints1192
Minimum length of a constraint21
Maximum length of a constraint3960

Trace number 10367

Launcher Data

LAUNCH ON wulflinc9 THE 2005-09-23 17:56:42 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9125 boxname=wulflinc9 idbench=921 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  3d2c1e8e1ac719fa835886a3b753eac3  /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-qiu.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-qiu.opb
IDLAUNCH: 9125
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        904716 kB
Buffers:         13312 kB
Cached:          99092 kB
SwapCached:          0 kB
Active:          53136 kB
Inactive:        62176 kB
HighTotal:      131008 kB
HighFree:        28784 kB
LowTotal:       903652 kB
LowFree:        875932 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9036 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:58:27 (client local time) WITH STATUS 1 IN 105.123 SECONDS
stats: 9125 7 105.123 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc

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/11481/stat): 11481 (pb2sat) R 11480 11481 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22161778 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/11481/statm): 373 2 364 364 0 9 0
[pid=11481] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-qiu.opb

[startup+10.0024 s]
Raw data (loadavg): 0.93 0.93 0.91 2/55 11481
Raw data (/proc/11481/stat): 11481 (pb2sat) R 11480 11481 4060 0 -1 0 27375 0 0 0 933 63 0 0 25 0 1 0 22161778 90619904 16260 4294967295 134512640 135987407 3221224560 3220035104 134876574 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11481/statm): 22124 16260 364 364 0 21760 0
[pid=11481] vsize: 88496
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 88496

[startup+20.0032 s]
Raw data (loadavg): 0.94 0.93 0.91 2/55 11481
Raw data (/proc/11481/stat): 11481 (pb2sat) R 11480 11481 4060 0 -1 0 58787 0 0 0 1866 127 0 0 25 0 1 0 22161778 186445824 36453 4294967295 134512640 135987407 3221224560 3220321744 134856445 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11481/statm): 45519 36453 364 364 0 45155 0
[pid=11481] vsize: 182076
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 182076

[startup+30.004 s]
Raw data (loadavg): 0.95 0.93 0.91 2/55 11481
Raw data (/proc/11481/stat): 11481 (pb2sat) R 11480 11481 4060 0 -1 0 102303 0 0 0 2771 219 0 0 25 0 1 0 22161778 319672320 57767 4294967295 134512640 135987407 3221224560 3220671028 134558588 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11481/statm): 78045 57767 364 364 0 77681 0
[pid=11481] vsize: 312180
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 312180

[startup+40.0048 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 11481
Raw data (/proc/11481/stat): 11481 (pb2sat) R 11480 11481 4060 0 -1 0 121071 0 0 0 3727 260 0 0 25 0 1 0 22161778 377556992 76309 4294967295 134512640 135987407 3221224560 3220894464 134560607 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11481/statm): 92177 76309 364 364 0 91813 0
[pid=11481] vsize: 368708
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 368708

[startup+50.0056 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 11481
Raw data (/proc/11481/stat): 11481 (pb2sat) R 11480 11481 4060 0 -1 0 147886 0 0 0 4666 318 0 0 25 0 1 0 22161778 557744128 102627 4294967295 134512640 135987407 3221224560 3221073712 134856467 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11481/statm): 136168 102627 364 364 0 135804 0
[pid=11481] vsize: 544672
Current children cumulated CPU time (s) 49.84
Current children cumulated vsize (Kb) 544672

[startup+60.0063 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 11481
Raw data (/proc/11481/stat): 11481 (pb2sat) R 11480 11481 4060 0 -1 0 204391 0 0 0 5544 437 0 0 25 0 1 0 22161778 636710912 115259 4294967295 134512640 135987407 3221224560 3220074912 134537547 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11481/statm): 155447 115259 364 364 0 155083 0
[pid=11481] vsize: 621788
Current children cumulated CPU time (s) 59.81
Current children cumulated vsize (Kb) 621788

[startup+70.0071 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 11481
Raw data (/proc/11481/stat): 11481 (pb2sat) R 11480 11481 4060 0 -1 0 216284 0 0 0 6517 465 0 0 25 0 1 0 22161778 670265344 126944 4294967295 134512640 135987407 3221224560 3220384892 135480487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11481/statm): 163639 126944 364 364 0 163275 0
[pid=11481] vsize: 654556
Current children cumulated CPU time (s) 69.82
Current children cumulated vsize (Kb) 654556

[startup+80.0079 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 11481
Raw data (/proc/11481/stat): 11481 (pb2sat) R 11480 11481 4060 0 -1 0 229552 0 0 0 7491 491 0 0 25 0 1 0 22161778 670265344 139979 4294967295 134512640 135987407 3221224560 3220617056 134876466 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11481/statm): 163639 139979 364 364 0 163275 0
[pid=11481] vsize: 654556
Current children cumulated CPU time (s) 79.82
Current children cumulated vsize (Kb) 654556

[startup+90.0087 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 11481
Raw data (/proc/11481/stat): 11481 (pb2sat) R 11480 11481 4060 0 -1 0 242934 0 0 0 8458 524 0 0 25 0 1 0 22161778 726409216 153151 4294967295 134512640 135987407 3221224560 3220889536 134877708 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11481/statm): 177346 153151 364 364 0 176982 0
[pid=11481] vsize: 709384
Current children cumulated CPU time (s) 89.82
Current children cumulated vsize (Kb) 709384

[startup+100.008 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 11481
Raw data (/proc/11481/stat): 11481 (pb2sat) R 11480 11481 4060 0 -1 0 257340 0 0 0 9427 555 0 0 25 0 1 0 22161778 733708288 167336 4294967295 134512640 135987407 3221224560 3221004624 134537412 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11481/statm): 179128 167336 364 364 0 178764 0
[pid=11481] vsize: 716512
Current children cumulated CPU time (s) 99.82
Current children cumulated vsize (Kb) 716512
One traced child (pid=11481) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 105.319
CPU time (s): 105.123
CPU user time (s): 99.1609
CPU system time (s): 5.96209
CPU usage (%): 99.8141
Max. virtual memory (cumulated for all children) (Kb): 716512

Verifier Data

ERROR: no interpretation found !