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-agg3.opb
MD5SUM39aa57894e5a2a46514193d566bffe40
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 6930
Biggest coefficient in the objective function 53730040872960
Number of bits for the biggest coefficient in the objective function 46
Sum of the numbers in the objective function 8516865379203027
Number of bits of the sum of numbers in the objective function 53
Biggest number in a constraint 22763326668800000
Number of bits of the biggest number in a constraint 55
Biggest sum of numbers in a constraint 46271983665442689
Number of bits of the biggest sum of numbers56
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables9060
Total number of constraints467
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 constraints467
Minimum length of a constraint30
Maximum length of a constraint1440

Trace number 9855

Launcher Data

LAUNCH ON wulflinc21 THE 2005-09-23 16:00:45 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8611 boxname=wulflinc21 idbench=407 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  39aa57894e5a2a46514193d566bffe40  /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-agg3.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-agg3.opb
IDLAUNCH: 8611
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.188
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		: 451.188
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:        932248 kB
Buffers:         13400 kB
Cached:          70852 kB
SwapCached:          0 kB
Active:          47856 kB
Inactive:        39260 kB
HighTotal:      131008 kB
HighFree:        55916 kB
LowTotal:       903652 kB
LowFree:        876332 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9632 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:02:31 (client local time) WITH STATUS 1 IN 105.191 SECONDS
stats: 8611 7 105.191 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/8534/stat): 8534 (pb2sat) R 8533 8534 4059 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21461385 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8534/statm): 373 2 364 364 0 9 0
[pid=8534] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-20-10-agg3.opb

[startup+10.0019 s]
Raw data (loadavg): 0.96 0.96 0.96 2/55 8534
Raw data (/proc/8534/stat): 8534 (pb2sat) R 8533 8534 4059 0 -1 0 30656 0 0 0 929 68 0 0 25 0 1 0 21461385 97886208 19524 4294967295 134512640 135987407 3221224560 3221162576 134636933 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8534/statm): 23898 19524 364 364 0 23534 0
[pid=8534] vsize: 95592
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 95592

[startup+20.0025 s]
Raw data (loadavg): 0.97 0.96 0.96 2/55 8536
Raw data (/proc/8534/stat): 8534 (pb2sat) R 8533 8534 4059 0 -1 0 62934 0 0 0 1860 134 0 0 25 0 1 0 21461385 195334144 40569 4294967295 134512640 135987407 3221224560 3221191260 135500014 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8534/statm): 47689 40569 364 364 0 47325 0
[pid=8534] vsize: 190756
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 190756

[startup+30.0032 s]
Raw data (loadavg): 0.97 0.97 0.96 2/55 8536
Raw data (/proc/8534/stat): 8534 (pb2sat) R 8533 8534 4059 0 -1 0 104411 0 0 0 2774 216 0 0 25 0 1 0 21461385 324255744 59855 4294967295 134512640 135987407 3221224560 3221116160 135486786 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8534/statm): 79164 59855 364 364 0 78800 0
[pid=8534] vsize: 316656
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 316656

[startup+40.0039 s]
Raw data (loadavg): 0.98 0.97 0.96 2/55 8540
Raw data (/proc/8534/stat): 8534 (pb2sat) R 8533 8534 4059 0 -1 0 116834 0 0 0 3747 244 0 0 25 0 1 0 21461385 358080512 72055 4294967295 134512640 135987407 3221224560 3221130232 134930929 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8534/statm): 87422 72055 364 364 0 87058 0
[pid=8534] vsize: 349688
Current children cumulated CPU time (s) 39.91
Current children cumulated vsize (Kb) 349688

[startup+50.0046 s]
Raw data (loadavg): 0.98 0.97 0.96 2/55 8540
Raw data (/proc/8534/stat): 8534 (pb2sat) R 8533 8534 4059 0 -1 0 146478 0 0 0 4689 299 0 0 25 0 1 0 21461385 534482944 100941 4294967295 134512640 135987407 3221224560 3221135200 134856473 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8534/statm): 130489 100941 364 364 0 130125 0
[pid=8534] vsize: 521956
Current children cumulated CPU time (s) 49.88
Current children cumulated vsize (Kb) 521956

[startup+60.0053 s]
Raw data (loadavg): 0.98 0.97 0.96 2/55 8540
Raw data (/proc/8534/stat): 8534 (pb2sat) R 8533 8534 4059 0 -1 0 197156 0 0 0 5586 401 0 0 25 0 1 0 21461385 600473600 107982 4294967295 134512640 135987407 3221224560 3221141360 134640032 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8534/statm): 146600 107982 364 364 0 146236 0
[pid=8534] vsize: 586400
Current children cumulated CPU time (s) 59.87
Current children cumulated vsize (Kb) 586400

[startup+70.006 s]
Raw data (loadavg): 0.98 0.97 0.96 2/55 8540
Raw data (/proc/8534/stat): 8534 (pb2sat) R 8533 8534 4059 0 -1 0 214322 0 0 0 6552 433 0 0 25 0 1 0 21461385 656601088 124939 4294967295 134512640 135987407 3221224560 3221152144 134537472 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8534/statm): 160303 124939 364 364 0 159939 0
[pid=8534] vsize: 641212
Current children cumulated CPU time (s) 69.85
Current children cumulated vsize (Kb) 641212

[startup+80.0066 s]
Raw data (loadavg): 0.99 0.97 0.96 2/55 8540
Raw data (/proc/8534/stat): 8534 (pb2sat) R 8533 8534 4059 0 -1 0 234288 0 0 0 7510 474 0 0 25 0 1 0 21461385 682958848 144662 4294967295 134512640 135987407 3221224560 3221160012 135480504 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8534/statm): 166738 144662 364 364 0 166374 0
[pid=8534] vsize: 666952
Current children cumulated CPU time (s) 79.84
Current children cumulated vsize (Kb) 666952

[startup+90.0073 s]
Raw data (loadavg): 0.99 0.97 0.96 2/55 8540
Raw data (/proc/8534/stat): 8534 (pb2sat) R 8533 8534 4059 0 -1 0 251076 0 0 0 8478 504 0 0 25 0 1 0 21461385 755322880 161246 4294967295 134512640 135987407 3221224560 3221169424 134877730 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8534/statm): 184405 161246 364 364 0 184041 0
[pid=8534] vsize: 737620
Current children cumulated CPU time (s) 89.82
Current children cumulated vsize (Kb) 737620

[startup+100.007 s]
Raw data (loadavg): 0.99 0.97 0.96 2/55 8540
Raw data (/proc/8534/stat): 8534 (pb2sat) R 8533 8534 4059 0 -1 0 268609 0 0 0 9441 540 0 0 25 0 1 0 21461385 779350016 178538 4294967295 134512640 135987407 3221224560 3221222820 135478476 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8534/statm): 190271 178538 364 364 0 189907 0
[pid=8534] vsize: 761084
Current children cumulated CPU time (s) 99.81
Current children cumulated vsize (Kb) 761084
One traced child (pid=8534) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 105.383
CPU time (s): 105.191
CPU user time (s): 99.4219
CPU system time (s): 5.76912
CPU usage (%): 99.8182
Max. virtual memory (cumulated for all children) (Kb): 761084

Verifier Data

ERROR: no interpretation found !