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/miplib3/normalized-mps-v2-20-10-blend2.opb
MD5SUM16b86ac5ad712621c8050f8776cfb803
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 88
Biggest coefficient in the objective function 24014225
Number of bits for the biggest coefficient in the objective function 25
Sum of the numbers in the objective function 235593725
Number of bits of the sum of numbers in the objective function 28
Biggest number in a constraint 8935312239624192
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 1346963845029350184
Number of bits of the biggest sum of numbers61
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables2944
Total number of constraints531
Number of constraints which are clauses9
Number of constraints which are cardinality constraints (but not clauses)310
Number of constraints which are nor clauses,nor cardinality constraints212
Minimum length of a constraint1
Maximum length of a constraint2659

Trace number 10064

Launcher Data

LAUNCH ON wulflinc9 THE 2005-09-23 16:46:51 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8823 boxname=wulflinc9 idbench=619 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  16b86ac5ad712621c8050f8776cfb803  /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-blend2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-blend2.opb
IDLAUNCH: 8823
/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:        913436 kB
Buffers:         12588 kB
Cached:          91316 kB
SwapCached:          0 kB
Active:          52376 kB
Inactive:        54448 kB
HighTotal:      131008 kB
HighFree:        36568 kB
LowTotal:       903652 kB
LowFree:        876868 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8888 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:48:27 (client local time) WITH STATUS 1 IN 94.9166 SECONDS
stats: 8823 7 94.9166 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/9637/stat): 9637 (pb2sat) R 9636 9637 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21742684 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9637/statm): 373 2 364 364 0 9 0
[pid=9637] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-blend2.opb

[startup+10.0011 s]
Raw data (loadavg): 0.93 0.97 0.99 2/55 9637
Raw data (/proc/9637/stat): 9637 (pb2sat) R 9636 9637 4060 0 -1 0 31948 0 0 0 921 73 0 0 25 0 1 0 21742684 98754560 20804 4294967295 134512640 135987407 3221224560 3221221040 135479964 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9637/statm): 24110 20804 364 364 0 23746 0
[pid=9637] vsize: 96440
Current children cumulated CPU time (s) 9.94
Current children cumulated vsize (Kb) 96440

[startup+20.0018 s]
Raw data (loadavg): 0.94 0.97 0.99 2/55 9637
Raw data (/proc/9637/stat): 9637 (pb2sat) R 9636 9637 4060 0 -1 0 58599 0 0 0 1858 135 0 0 25 0 1 0 21742684 175656960 36238 4294967295 134512640 135987407 3221224560 3221221756 134639076 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9637/statm): 42885 36238 364 364 0 42521 0
[pid=9637] vsize: 171540
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 171540

[startup+30.0026 s]
Raw data (loadavg): 0.95 0.97 0.99 2/55 9637
Raw data (/proc/9637/stat): 9637 (pb2sat) R 9636 9637 4060 0 -1 0 98539 0 0 0 2770 221 0 0 25 0 1 0 21742684 294686720 53937 4294967295 134512640 135987407 3221224560 3220332780 135480513 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9637/statm): 71945 53937 364 364 0 71581 0
[pid=9637] vsize: 287780
Current children cumulated CPU time (s) 29.91
Current children cumulated vsize (Kb) 287780

[startup+40.0034 s]
Raw data (loadavg): 0.95 0.97 0.99 2/55 9637
Raw data (/proc/9637/stat): 9637 (pb2sat) R 9636 9637 4060 0 -1 0 119009 0 0 0 3725 264 0 0 25 0 1 0 21742684 361947136 74145 4294967295 134512640 135987407 3221224560 3220337308 134636956 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9637/statm): 88366 74145 364 364 0 88002 0
[pid=9637] vsize: 353464
Current children cumulated CPU time (s) 39.89
Current children cumulated vsize (Kb) 353464

[startup+50.0042 s]
Raw data (loadavg): 0.96 0.97 0.99 2/55 9637
Raw data (/proc/9637/stat): 9637 (pb2sat) R 9636 9637 4060 0 -1 0 161500 0 0 0 4637 348 0 0 25 0 1 0 21742684 496754688 96827 4294967295 134512640 135987407 3221224560 3220331904 134638995 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9637/statm): 121278 96827 364 364 0 120914 0
[pid=9637] vsize: 485112
Current children cumulated CPU time (s) 49.85
Current children cumulated vsize (Kb) 485112

[startup+60.0039 s]
Raw data (loadavg): 0.97 0.97 0.99 2/55 9637
Raw data (/proc/9637/stat): 9637 (pb2sat) R 9636 9637 4060 0 -1 0 203451 0 0 0 5543 440 0 0 25 0 1 0 21742684 622694400 113966 4294967295 134512640 135987407 3221224560 3220343776 134887994 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9637/statm): 152025 113966 364 364 0 151661 0
[pid=9637] vsize: 608100
Current children cumulated CPU time (s) 59.83
Current children cumulated vsize (Kb) 608100

[startup+70.0047 s]
Raw data (loadavg): 0.97 0.97 0.99 2/55 9637
Raw data (/proc/9637/stat): 9637 (pb2sat) R 9636 9637 4060 0 -1 0 220612 0 0 0 6504 477 0 0 25 0 1 0 21742684 682717184 130895 4294967295 134512640 135987407 3221224560 3220341888 134556271 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9637/statm): 166679 130895 364 364 0 166315 0
[pid=9637] vsize: 666716
Current children cumulated CPU time (s) 69.81
Current children cumulated vsize (Kb) 666716

[startup+80.0055 s]
Raw data (loadavg): 0.98 0.97 0.99 2/55 9637
Raw data (/proc/9637/stat): 9637 (pb2sat) R 9636 9637 4060 0 -1 0 242149 0 0 0 7456 523 0 0 25 0 1 0 21742684 717844480 151667 4294967295 134512640 135987407 3221224560 3220333168 134856581 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9637/statm): 175255 151667 364 364 0 174891 0
[pid=9637] vsize: 701020
Current children cumulated CPU time (s) 79.79
Current children cumulated vsize (Kb) 701020

[startup+90.0063 s]
Raw data (loadavg): 0.98 0.97 0.99 2/55 9637
Raw data (/proc/9637/stat): 9637 (pb2sat) R 9636 9637 4060 0 -1 0 259676 0 0 0 8418 559 0 0 25 0 1 0 21742684 746647552 168971 4294967295 134512640 135987407 3221224560 3221222804 135479922 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9637/statm): 182287 168971 364 364 0 181923 0
[pid=9637] vsize: 729148
Current children cumulated CPU time (s) 89.77
Current children cumulated vsize (Kb) 729148
One traced child (pid=9637) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 95.1463
CPU time (s): 94.9166
CPU user time (s): 88.9685
CPU system time (s): 5.9481
CPU usage (%): 99.7586
Max. virtual memory (cumulated for all children) (Kb): 729148

Verifier Data

ERROR: no interpretation found !