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-air05.opb
MD5SUM02b9fdfc96e8b88ab6df67318e21abbc
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 39630
Optimality of the best value was proved NO
Number of terms in the objective function 7195
Biggest coefficient in the objective function 2679
Number of bits for the biggest coefficient in the objective function 12
Sum of the numbers in the objective function 3908448
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 2679
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 3908448
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 benchmark1195.32
Number of variables7195
Total number of constraints7621
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)7621
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint404

Trace number 10443

Launcher Data

LAUNCH ON wulflinc14 THE 2005-09-23 18:21:34 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9203 boxname=wulflinc14 idbench=999 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  02b9fdfc96e8b88ab6df67318e21abbc  /oldhome/oroussel/tmp/wulflinc14/normalized-mps-v2-13-7-air05.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc14/normalized-mps-v2-13-7-air05.opb
IDLAUNCH: 9203
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.058
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		: 451.058
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:        980872 kB
Buffers:          2860 kB
Cached:          33656 kB
SwapCached:          0 kB
Active:          18392 kB
Inactive:        21052 kB
HighTotal:      131008 kB
HighFree:        93128 kB
LowTotal:       903652 kB
LowFree:        887744 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8712 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 18:23:27 (client local time) WITH STATUS 1 IN 112.533 SECONDS
stats: 9203 7 112.533 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 45244
c big objective detected
c trying from 0 to 511

	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/10022/stat): 10022 (pb2sat) R 10021 10022 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22307182 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10022/statm): 373 2 364 364 0 9 0
[pid=10022] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc14/normalized-mps-v2-13-7-air05.opb

[startup+10.0019 s]
Raw data (loadavg): 0.93 0.96 0.94 2/55 10022
Raw data (/proc/10022/stat): 10022 (pb2sat) R 10021 10022 4060 0 -1 0 14287 0 0 0 961 34 0 0 25 0 1 0 22307182 44490752 8506 4294967295 134512640 135987407 3221224560 3221223344 134812296 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10022/statm): 10862 8506 364 364 0 10498 0
[pid=10022] vsize: 43448
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 43448

[startup+20.0026 s]
Raw data (loadavg): 0.94 0.96 0.94 2/55 10022
Raw data (/proc/10022/stat): 10022 (pb2sat) R 10021 10022 4060 0 -1 0 28870 0 0 0 1909 74 0 0 25 0 1 0 22307182 95363072 17493 4294967295 134512640 135987407 3221224560 3219765164 135499903 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10022/statm): 23282 17493 364 364 0 22918 0
[pid=10022] vsize: 93128
Current children cumulated CPU time (s) 19.83
Current children cumulated vsize (Kb) 93128

[startup+30.0032 s]
Raw data (loadavg): 0.95 0.96 0.94 2/55 10022
Raw data (/proc/10022/stat): 10022 (pb2sat) R 10021 10022 4060 0 -1 0 59002 0 0 0 2841 139 0 0 25 0 1 0 22307182 191459328 36391 4294967295 134512640 135987407 3221224560 3220153264 134931273 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10022/statm): 46743 36392 364 364 0 46379 0
[pid=10022] vsize: 186972
Current children cumulated CPU time (s) 29.8
Current children cumulated vsize (Kb) 186972

[startup+40.0029 s]
Raw data (loadavg): 0.96 0.96 0.94 2/55 10022
Raw data (/proc/10022/stat): 10022 (pb2sat) R 10021 10022 4060 0 -1 0 89990 0 0 0 3769 207 0 0 25 0 1 0 22307182 275300352 57435 4294967295 134512640 135987407 3221224560 3219286540 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10022/statm): 67212 57435 364 364 0 66848 0
[pid=10022] vsize: 268848
Current children cumulated CPU time (s) 39.76
Current children cumulated vsize (Kb) 268848

[startup+50.0035 s]
Raw data (loadavg): 0.96 0.96 0.94 2/55 10022
Raw data (/proc/10022/stat): 10022 (pb2sat) R 10021 10022 4060 0 -1 0 118280 0 0 0 4701 273 0 0 25 0 1 0 22307182 382705664 73218 4294967295 134512640 135987407 3221224560 3219139376 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10022/statm): 93434 73218 364 364 0 93070 0
[pid=10022] vsize: 373736
Current children cumulated CPU time (s) 49.74
Current children cumulated vsize (Kb) 373736

[startup+60.0032 s]
Raw data (loadavg): 0.97 0.96 0.94 2/55 10022
Raw data (/proc/10022/stat): 10022 (pb2sat) R 10021 10022 4060 0 -1 0 161314 0 0 0 5615 355 0 0 25 0 1 0 22307182 592629760 115056 4294967295 134512640 135987407 3221224560 3220323296 134892994 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10022/statm): 144685 115056 364 364 0 144321 0
[pid=10022] vsize: 578740
Current children cumulated CPU time (s) 59.7
Current children cumulated vsize (Kb) 578740

[startup+70.0039 s]
Raw data (loadavg): 0.97 0.96 0.94 2/55 10022
Raw data (/proc/10022/stat): 10022 (pb2sat) R 10021 10022 4060 0 -1 0 178690 0 0 0 6573 396 0 0 25 0 1 0 22307182 547954688 113769 4294967295 134512640 135987407 3221224560 3221204092 135480732 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10022/statm): 133778 113769 364 364 0 133414 0
[pid=10022] vsize: 535112
Current children cumulated CPU time (s) 69.69
Current children cumulated vsize (Kb) 535112

[startup+80.0045 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 10022
Raw data (/proc/10022/stat): 10022 (pb2sat) R 10021 10022 4060 0 -1 0 218886 0 0 0 7480 486 0 0 25 0 1 0 22307182 671596544 129174 4294967295 134512640 135987407 3221224560 3220037132 134636956 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10022/statm): 163964 129175 364 364 0 163600 0
[pid=10022] vsize: 655856
Current children cumulated CPU time (s) 79.66
Current children cumulated vsize (Kb) 655856

[startup+90.0042 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 10022
Raw data (/proc/10022/stat): 10022 (pb2sat) R 10021 10022 4060 0 -1 0 234045 0 0 0 8445 518 0 0 25 0 1 0 22307182 727453696 144126 4294967295 134512640 135987407 3221224560 3219119068 135480442 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10022/statm): 177601 144126 364 364 0 177237 0
[pid=10022] vsize: 710404
Current children cumulated CPU time (s) 89.63
Current children cumulated vsize (Kb) 710404

[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 10022
Raw data (/proc/10022/stat): 10022 (pb2sat) R 10021 10022 4060 0 -1 0 252218 0 0 0 9405 556 0 0 25 0 1 0 22307182 754216960 162055 4294967295 134512640 135987407 3221224560 3219414860 134641848 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10022/statm): 184135 162056 364 364 0 183771 0
[pid=10022] vsize: 736540
Current children cumulated CPU time (s) 99.61
Current children cumulated vsize (Kb) 736540

[startup+110.004 s]
Raw data (loadavg): 0.98 0.97 0.94 2/55 10022
Raw data (/proc/10022/stat): 10022 (pb2sat) R 10021 10022 4060 0 -1 0 263182 0 0 0 10377 582 0 0 25 0 1 0 22307182 774189056 172860 4294967295 134512640 135987407 3221224560 3221223240 135477671 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10022/statm): 189011 172860 364 364 0 188647 0
[pid=10022] vsize: 756044
Current children cumulated CPU time (s) 109.59
Current children cumulated vsize (Kb) 756044
One traced child (pid=10022) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 112.938
CPU time (s): 112.533
CPU user time (s): 106.365
CPU system time (s): 6.16806
CPU usage (%): 99.641
Max. virtual memory (cumulated for all children) (Kb): 756044

Verifier Data

ERROR: no interpretation found !