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-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-share2b.opb
MD5SUM4012b33f10ee9cb79561239f68fdcd6b
Bench Categoryoptimization, big integers (OPTBIGINT)
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 870
Biggest coefficient in the objective function 204010946560
Number of bits for the biggest coefficient in the objective function 38
Sum of the numbers in the objective function 4534411718529
Number of bits of the sum of numbers in the objective function 43
Biggest number in a constraint 552977039360
Number of bits of the biggest number in a constraint 40
Biggest sum of numbers in a constraint 10976862656529
Number of bits of the biggest sum of numbers44
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables2370
Total number of constraints96
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 constraints96
Minimum length of a constraint30
Maximum length of a constraint360

Trace number 9921

Launcher Data

LAUNCH ON wulflinc19 THE 2005-09-23 16:11:23 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8674 boxname=wulflinc19 idbench=470 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  4012b33f10ee9cb79561239f68fdcd6b  /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-share2b.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-share2b.opb
IDLAUNCH: 8674
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
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	: 3
cpu MHz		: 451.169
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:        924788 kB
Buffers:         15380 kB
Cached:          74788 kB
SwapCached:          0 kB
Active:          46168 kB
Inactive:        46896 kB
HighTotal:      131008 kB
HighFree:        52752 kB
LowTotal:       903652 kB
LowFree:        872036 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11220 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:13:07 (client local time) WITH STATUS 1 IN 103.735 SECONDS
stats: 8674 7 103.735 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/8019/stat): 8019 (pb2sat) R 8018 8019 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21526075 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8019/statm): 373 2 364 364 0 9 0
[pid=8019] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-share2b.opb

[startup+10.0018 s]
Raw data (loadavg): 0.92 0.93 0.92 2/55 8019
Raw data (/proc/8019/stat): 8019 (pb2sat) R 8018 8019 4060 0 -1 0 31994 0 0 0 928 67 0 0 25 0 1 0 21526075 99020800 20847 4294967295 134512640 135987407 3221224560 3221163888 134802857 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8019/statm): 24175 20847 364 364 0 23811 0
[pid=8019] vsize: 96700
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 96700

[startup+20.0026 s]
Raw data (loadavg): 0.93 0.94 0.92 2/55 8019
Raw data (/proc/8019/stat): 8019 (pb2sat) R 8018 8019 4060 0 -1 0 64002 0 0 0 1860 133 0 0 25 0 1 0 21526075 196063232 41625 4294967295 134512640 135987407 3221224560 3221190088 134636945 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8019/statm): 47867 41625 364 364 0 47503 0
[pid=8019] vsize: 191468
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 191468

[startup+30.0034 s]
Raw data (loadavg): 0.94 0.94 0.92 2/55 8019
Raw data (/proc/8019/stat): 8019 (pb2sat) R 8018 8019 4060 0 -1 0 106688 0 0 0 2771 219 0 0 25 0 1 0 21526075 362168320 62115 4294967295 134512640 135987407 3221224560 3221206048 134877726 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8019/statm): 88420 62115 364 364 0 88056 0
[pid=8019] vsize: 353680
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 353680

[startup+40.0043 s]
Raw data (loadavg): 0.95 0.94 0.92 2/55 8019
Raw data (/proc/8019/stat): 8019 (pb2sat) R 8018 8019 4060 0 -1 0 121119 0 0 0 3740 249 0 0 25 0 1 0 21526075 368250880 76312 4294967295 134512640 135987407 3221224560 3221206912 134537371 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8019/statm): 89905 76312 364 364 0 89541 0
[pid=8019] vsize: 359620
Current children cumulated CPU time (s) 39.89
Current children cumulated vsize (Kb) 359620

[startup+50.0051 s]
Raw data (loadavg): 0.96 0.94 0.92 2/55 8019
Raw data (/proc/8019/stat): 8019 (pb2sat) R 8018 8019 4060 0 -1 0 161874 0 0 0 4658 327 0 0 25 0 1 0 21526075 562089984 115866 4294967295 134512640 135987407 3221224560 3221194064 134861431 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8019/statm): 137229 115866 364 364 0 136865 0
[pid=8019] vsize: 548916
Current children cumulated CPU time (s) 49.85
Current children cumulated vsize (Kb) 548916

[startup+60.0049 s]
Raw data (loadavg): 0.96 0.94 0.92 2/55 8019
Raw data (/proc/8019/stat): 8019 (pb2sat) R 8018 8019 4060 0 -1 0 197912 0 0 0 5577 407 0 0 25 0 1 0 21526075 595922944 108703 4294967295 134512640 135987407 3221224560 3221129124 134931037 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8019/statm): 145489 108703 364 364 0 145125 0
[pid=8019] vsize: 581956
Current children cumulated CPU time (s) 59.84
Current children cumulated vsize (Kb) 581956

[startup+70.0057 s]
Raw data (loadavg): 0.97 0.94 0.92 2/55 8019
Raw data (/proc/8019/stat): 8019 (pb2sat) R 8018 8019 4060 0 -1 0 210964 0 0 0 6548 436 0 0 25 0 1 0 21526075 636375040 121550 4294967295 134512640 135987407 3221224560 3221137024 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8019/statm): 155365 121550 364 364 0 155001 0
[pid=8019] vsize: 621460
Current children cumulated CPU time (s) 69.84
Current children cumulated vsize (Kb) 621460

[startup+80.0065 s]
Raw data (loadavg): 0.97 0.94 0.92 2/55 8019
Raw data (/proc/8019/stat): 8019 (pb2sat) R 8018 8019 4060 0 -1 0 226061 0 0 0 7518 466 0 0 25 0 1 0 21526075 644222976 136411 4294967295 134512640 135987407 3221224560 3221146220 135485038 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8019/statm): 157281 136411 364 364 0 156917 0
[pid=8019] vsize: 629124
Current children cumulated CPU time (s) 79.84
Current children cumulated vsize (Kb) 629124

[startup+90.0073 s]
Raw data (loadavg): 0.98 0.95 0.92 2/55 8019
Raw data (/proc/8019/stat): 8019 (pb2sat) R 8018 8019 4060 0 -1 0 240054 0 0 0 8485 497 0 0 25 0 1 0 21526075 709152768 150216 4294967295 134512640 135987407 3221224560 3221147740 134637015 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8019/statm): 173133 150216 364 364 0 172769 0
[pid=8019] vsize: 692532
Current children cumulated CPU time (s) 89.82
Current children cumulated vsize (Kb) 692532

[startup+100.007 s]
Raw data (loadavg): 0.98 0.95 0.92 2/55 8019
Raw data (/proc/8019/stat): 8019 (pb2sat) R 8018 8019 4060 0 -1 0 256968 0 0 0 9449 531 0 0 25 0 1 0 21526075 732639232 166925 4294967295 134512640 135987407 3221224560 3221223392 135288083 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8019/statm): 178867 166925 364 364 0 178503 0
[pid=8019] vsize: 715468
Current children cumulated CPU time (s) 99.8
Current children cumulated vsize (Kb) 715468
One traced child (pid=8019) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 103.931
CPU time (s): 103.735
CPU user time (s): 98.0771
CPU system time (s): 5.65814
CPU usage (%): 99.8114
Max. virtual memory (cumulated for all children) (Kb): 715468

Verifier Data

ERROR: no interpretation found !