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/MIPLIB/miplib2003/normalized-mps-v2-20-10-mas74.opb
MD5SUM6a0bff14a7f6c8e613cddf35e20a182f
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 503502750032
Optimality of the best value was proved NO
Number of terms in the objective function 240
Biggest coefficient in the objective function 1934281311383406679529881600000
Number of bits for the biggest coefficient in the objective function 101
Sum of the numbers in the objective function 3868562622766813359059763200000
Number of bits of the sum of numbers in the objective function 102
Biggest number in a constraint 1208925819614629174706176000000000
Number of bits of the biggest number in a constraint 110
Biggest sum of numbers in a constraint 2417851639229258349412352000000000
Number of bits of the biggest sum of numbers111
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark9.92549
Number of variables240
Total number of constraints164
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)151
Number of constraints which are nor clauses,nor cardinality constraints13
Minimum length of a constraint1
Maximum length of a constraint239

Trace number 10016

Launcher Data

LAUNCH ON wulflinc6 THE 2005-09-23 16:34:28 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8778 boxname=wulflinc6 idbench=574 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  6a0bff14a7f6c8e613cddf35e20a182f  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-mas74.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-mas74.opb
IDLAUNCH: 8778
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.158
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		: 451.158
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:        925736 kB
Buffers:         12880 kB
Cached:          78920 kB
SwapCached:          0 kB
Active:          41556 kB
Inactive:        53208 kB
HighTotal:      131008 kB
HighFree:        48524 kB
LowTotal:       903652 kB
LowFree:        877212 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8540 kB
Committed_AS:    63632 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:36:16 (client local time) WITH STATUS 1 IN 108.17 SECONDS
stats: 8778 7 108.17 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/8370/stat): 8370 (pb2sat) R 8369 8370 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21680990 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8370/statm): 373 2 364 364 0 9 0
[pid=8370] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-mas74.opb

[startup+10.0015 s]
Raw data (loadavg): 0.92 0.95 0.95 2/55 8370
Raw data (/proc/8370/stat): 8370 (pb2sat) R 8369 8370 4060 0 -1 0 30463 0 0 0 927 69 0 0 25 0 1 0 21680990 98668544 19316 4294967295 134512640 135987407 3221224560 3221154160 134537400 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8370/statm): 24089 19316 364 364 0 23725 0
[pid=8370] vsize: 96356
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 96356

[startup+20.0022 s]
Raw data (loadavg): 0.93 0.95 0.95 2/55 8370
Raw data (/proc/8370/stat): 8370 (pb2sat) R 8369 8370 4060 0 -1 0 60167 0 0 0 1862 132 0 0 25 0 1 0 21680990 195100672 37786 4294967295 134512640 135987407 3221224560 3221153788 134637011 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8370/statm): 47632 37786 364 364 0 47268 0
[pid=8370] vsize: 190528
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 190528

[startup+30.003 s]
Raw data (loadavg): 0.94 0.95 0.95 2/55 8370
Raw data (/proc/8370/stat): 8370 (pb2sat) R 8369 8370 4060 0 -1 0 90856 0 0 0 2803 189 0 0 25 0 1 0 21680990 279072768 58388 4294967295 134512640 135987407 3221224560 3221154864 134558765 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8370/statm): 68133 58388 364 364 0 67769 0
[pid=8370] vsize: 272532
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 272532

[startup+40.0027 s]
Raw data (loadavg): 0.95 0.95 0.95 2/55 8370
Raw data (/proc/8370/stat): 8370 (pb2sat) R 8369 8370 4060 0 -1 0 118574 0 0 0 3739 250 0 0 25 0 1 0 21680990 385396736 73615 4294967295 134512640 135987407 3221224560 3221154672 134931253 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8370/statm): 94091 73615 364 364 0 93727 0
[pid=8370] vsize: 376364
Current children cumulated CPU time (s) 39.89
Current children cumulated vsize (Kb) 376364

[startup+50.0035 s]
Raw data (loadavg): 0.96 0.95 0.95 2/55 8370
Raw data (/proc/8370/stat): 8370 (pb2sat) R 8369 8370 4060 0 -1 0 149052 0 0 0 4677 308 0 0 25 0 1 0 21680990 577556480 103361 4294967295 134512640 135987407 3221224560 3221154988 135500012 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8370/statm): 141005 103361 364 364 0 140641 0
[pid=8370] vsize: 564020
Current children cumulated CPU time (s) 49.85
Current children cumulated vsize (Kb) 564020

[startup+60.0032 s]
Raw data (loadavg): 0.96 0.95 0.95 2/55 8370
Raw data (/proc/8370/stat): 8370 (pb2sat) R 8369 8370 4060 0 -1 0 179677 0 0 0 5613 370 0 0 25 0 1 0 21680990 552509440 114036 4294967295 134512640 135987407 3221224560 3221154832 134537562 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8370/statm): 134890 114036 364 364 0 134526 0
[pid=8370] vsize: 539560
Current children cumulated CPU time (s) 59.83
Current children cumulated vsize (Kb) 539560

[startup+70.004 s]
Raw data (loadavg): 0.97 0.96 0.95 2/55 8370
Raw data (/proc/8370/stat): 8370 (pb2sat) R 8369 8370 4060 0 -1 0 219459 0 0 0 6531 451 0 0 25 0 1 0 21680990 675205120 129043 4294967295 134512640 135987407 3221224560 3221154528 134559750 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8370/statm): 164845 129043 364 364 0 164481 0
[pid=8370] vsize: 659380
Current children cumulated CPU time (s) 69.82
Current children cumulated vsize (Kb) 659380

[startup+80.0047 s]
Raw data (loadavg): 0.97 0.96 0.95 2/55 8370
Raw data (/proc/8370/stat): 8370 (pb2sat) R 8369 8370 4060 0 -1 0 234206 0 0 0 7499 481 0 0 25 0 1 0 21680990 730251264 143598 4294967295 134512640 135987407 3221224560 3221155868 134637039 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8370/statm): 178284 143598 364 364 0 177920 0
[pid=8370] vsize: 713136
Current children cumulated CPU time (s) 79.8
Current children cumulated vsize (Kb) 713136

[startup+90.0045 s]
Raw data (loadavg): 0.98 0.96 0.95 2/55 8370
Raw data (/proc/8370/stat): 8370 (pb2sat) R 8369 8370 4060 0 -1 0 252116 0 0 0 8461 516 0 0 25 0 1 0 21680990 757157888 161281 4294967295 134512640 135987407 3221224560 3221153116 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8370/statm): 184853 161281 364 364 0 184489 0
[pid=8370] vsize: 739412
Current children cumulated CPU time (s) 89.77
Current children cumulated vsize (Kb) 739412

[startup+100.005 s]
Raw data (loadavg): 0.98 0.96 0.95 2/55 8370
Raw data (/proc/8370/stat): 8370 (pb2sat) R 8369 8370 4060 0 -1 0 270074 0 0 0 9423 551 0 0 25 0 1 0 21680990 785248256 178693 4294967295 134512640 135987407 3221224560 3221155128 134864165 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8370/statm): 191711 178693 364 364 0 191347 0
[pid=8370] vsize: 766844
Current children cumulated CPU time (s) 99.74
Current children cumulated vsize (Kb) 766844
One traced child (pid=8370) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 108.434
CPU time (s): 108.17
CPU user time (s): 102.278
CPU system time (s): 5.8911
CPU usage (%): 99.7557
Max. virtual memory (cumulated for all children) (Kb): 766844

Verifier Data

ERROR: no interpretation found !