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/miplib3/normalized-mps-v2-13-7-qiu.opb
MD5SUM4c28b5d69ca148b9520954a67787770d
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 benchmark98.783
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 10491

Launcher Data

LAUNCH ON wulflinc2 THE 2005-09-23 18:37:38 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9246 boxname=wulflinc2 idbench=1042 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  4c28b5d69ca148b9520954a67787770d  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-qiu.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-qiu.opb
IDLAUNCH: 9246
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.261
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		: 451.261
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:        892172 kB
Buffers:         17556 kB
Cached:         105048 kB
SwapCached:          0 kB
Active:          47304 kB
Inactive:        78224 kB
HighTotal:      131008 kB
HighFree:        29792 kB
LowTotal:       903652 kB
LowFree:        862380 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11316 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 18:39:25 (client local time) WITH STATUS 1 IN 106.486 SECONDS
stats: 9246 7 106.486 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/11181/stat): 11181 (pb2sat) R 11180 11181 4070 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22424079 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/11181/statm): 373 2 364 364 0 9 0
[pid=11181] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-qiu.opb

[startup+10.0022 s]
Raw data (loadavg): 1.02 1.02 0.98 2/55 11181
Raw data (/proc/11181/stat): 11181 (pb2sat) R 11180 11181 4070 0 -1 0 27107 0 0 0 933 63 0 0 25 0 1 0 22424079 90349568 15995 4294967295 134512640 135987407 3221224560 3220106836 134537406 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11181/statm): 22058 15995 364 364 0 21694 0
[pid=11181] vsize: 88232
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 88232

[startup+20.0029 s]
Raw data (loadavg): 1.01 1.02 0.98 2/55 11181
Raw data (/proc/11181/stat): 11181 (pb2sat) R 11180 11181 4070 0 -1 0 58241 0 0 0 1866 128 0 0 25 0 1 0 22424079 185769984 35914 4294967295 134512640 135987407 3221224560 3220328564 134641634 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11181/statm): 45354 35914 364 364 0 44990 0
[pid=11181] vsize: 181416
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 181416

[startup+30.0036 s]
Raw data (loadavg): 1.01 1.01 0.98 2/55 11181
Raw data (/proc/11181/stat): 11181 (pb2sat) R 11180 11181 4070 0 -1 0 101486 0 0 0 2774 216 0 0 25 0 1 0 22424079 318726144 56960 4294967295 134512640 135987407 3221224560 3220627820 135480627 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11181/statm): 77814 56960 364 364 0 77450 0
[pid=11181] vsize: 311256
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 311256

[startup+40.0043 s]
Raw data (loadavg): 1.01 1.01 0.98 2/55 11181
Raw data (/proc/11181/stat): 11181 (pb2sat) R 11180 11181 4070 0 -1 0 119985 0 0 0 3732 257 0 0 25 0 1 0 22424079 376070144 75236 4294967295 134512640 135987407 3221224560 3220787504 134862192 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11181/statm): 91814 75236 364 364 0 91450 0
[pid=11181] vsize: 367256
Current children cumulated CPU time (s) 39.89
Current children cumulated vsize (Kb) 367256

[startup+50.0051 s]
Raw data (loadavg): 1.01 1.01 0.98 2/55 11181
Raw data (/proc/11181/stat): 11181 (pb2sat) R 11180 11181 4070 0 -1 0 140309 0 0 0 4685 301 0 0 25 0 1 0 22424079 545984512 95312 4294967295 134512640 135987407 3221224560 3221073712 134856587 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11181/statm): 133297 95312 364 364 0 132933 0
[pid=11181] vsize: 533188
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 533188

[startup+60.0048 s]
Raw data (loadavg): 1.00 1.01 0.98 2/55 11181
Raw data (/proc/11181/stat): 11181 (pb2sat) R 11180 11181 4070 0 -1 0 203221 0 0 0 5547 435 0 0 25 0 1 0 22424079 636710912 114110 4294967295 134512640 135987407 3221224560 3219949948 134635478 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11181/statm): 155447 114110 364 364 0 155083 0
[pid=11181] vsize: 621788
Current children cumulated CPU time (s) 59.82
Current children cumulated vsize (Kb) 621788

[startup+70.0055 s]
Raw data (loadavg): 1.00 1.01 0.98 2/55 11181
Raw data (/proc/11181/stat): 11181 (pb2sat) R 11180 11181 4070 0 -1 0 215059 0 0 0 6517 465 0 0 25 0 1 0 22424079 670265344 125740 4294967295 134512640 135987407 3221224560 3220168340 135479935 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11181/statm): 163639 125740 364 364 0 163275 0
[pid=11181] vsize: 654556
Current children cumulated CPU time (s) 69.82
Current children cumulated vsize (Kb) 654556

[startup+80.0062 s]
Raw data (loadavg): 1.00 1.01 0.98 2/55 11181
Raw data (/proc/11181/stat): 11181 (pb2sat) R 11180 11181 4070 0 -1 0 228148 0 0 0 7488 494 0 0 25 0 1 0 22424079 670265344 138600 4294967295 134512640 135987407 3221224560 3220472272 134856372 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11181/statm): 163639 138600 364 364 0 163275 0
[pid=11181] vsize: 654556
Current children cumulated CPU time (s) 79.82
Current children cumulated vsize (Kb) 654556

[startup+90.0069 s]
Raw data (loadavg): 1.00 1.01 0.98 2/55 11181
Raw data (/proc/11181/stat): 11181 (pb2sat) R 11180 11181 4070 0 -1 0 242934 0 0 0 8454 527 0 0 25 0 1 0 22424079 726409216 153151 4294967295 134512640 135987407 3221224560 3220889536 134877628 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11181/statm): 177346 153151 364 364 0 176982 0
[pid=11181] vsize: 709384
Current children cumulated CPU time (s) 89.81
Current children cumulated vsize (Kb) 709384

[startup+100.008 s]
Raw data (loadavg): 1.00 1.01 0.98 2/55 11181
Raw data (/proc/11181/stat): 11181 (pb2sat) R 11180 11181 4070 0 -1 0 255334 0 0 0 9428 553 0 0 25 0 1 0 22424079 732626944 165361 4294967295 134512640 135987407 3221224560 3220945488 134537552 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11181/statm): 178864 165361 364 364 0 178500 0
[pid=11181] vsize: 715456
Current children cumulated CPU time (s) 99.81
Current children cumulated vsize (Kb) 715456
One traced child (pid=11181) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 106.685
CPU time (s): 106.486
CPU user time (s): 100.503
CPU system time (s): 5.98309
CPU usage (%): 99.8137
Max. virtual memory (cumulated for all children) (Kb): 715456

Verifier Data

ERROR: no interpretation found !