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-swath.opb
MD5SUM12b1872758bf5ca9bcca815eb287b5de
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 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 16777216000000
Number of bits of the biggest number in a constraint 44
Biggest sum of numbers in a constraint 66042304016951
Number of bits of the biggest sum of numbers46
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables9155
Total number of constraints7608
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)7147
Number of constraints which are nor clauses,nor cardinality constraints461
Minimum length of a constraint1
Maximum length of a constraint6754

Trace number 10048

Launcher Data

LAUNCH ON wulflinc23 THE 2005-09-23 16:41:18 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8805 boxname=wulflinc23 idbench=601 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  12b1872758bf5ca9bcca815eb287b5de  /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-swath.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-swath.opb
IDLAUNCH: 8805
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.185
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		: 451.185
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:        907004 kB
Buffers:         14472 kB
Cached:          94600 kB
SwapCached:          0 kB
Active:          61844 kB
Inactive:        50124 kB
HighTotal:      131008 kB
HighFree:        36232 kB
LowTotal:       903652 kB
LowFree:        870772 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10136 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:42:56 (client local time) WITH STATUS 1 IN 97.6981 SECONDS
stats: 8805 7 97.6981 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/8848/stat): 8848 (pb2sat) R 8847 8848 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21702156 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8848/statm): 373 2 364 364 0 9 0
[pid=8848] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-swath.opb

[startup+10.0021 s]
Raw data (loadavg): 0.85 0.92 0.90 2/55 8848
Raw data (/proc/8848/stat): 8848 (pb2sat) R 8847 8848 4060 0 -1 0 29610 0 0 0 927 68 0 0 25 0 1 0 21702156 91504640 18474 4294967295 134512640 135987407 3221224560 3218956848 134876472 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8848/statm): 22340 18474 364 364 0 21976 0
[pid=8848] vsize: 89360
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 89360

[startup+20.0027 s]
Raw data (loadavg): 0.88 0.92 0.91 2/55 8848
Raw data (/proc/8848/stat): 8848 (pb2sat) R 8847 8848 4060 0 -1 0 60518 0 0 0 1856 137 0 0 25 0 1 0 21702156 197378048 38138 4294967295 134512640 135987407 3221224560 3218979056 134856372 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8848/statm): 48188 38138 364 364 0 47824 0
[pid=8848] vsize: 192752
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 192752

[startup+30.0033 s]
Raw data (loadavg): 0.89 0.92 0.91 2/55 8848
Raw data (/proc/8848/stat): 8848 (pb2sat) R 8847 8848 4060 0 -1 0 93230 0 0 0 2787 201 0 0 25 0 1 0 21702156 284377088 60888 4294967295 134512640 135987407 3221224560 3220309108 134637840 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8848/statm): 69428 60888 364 364 0 69064 0
[pid=8848] vsize: 277712
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 277712

[startup+40.004 s]
Raw data (loadavg): 0.91 0.92 0.91 2/55 8848
Raw data (/proc/8848/stat): 8848 (pb2sat) R 8847 8848 4060 0 -1 0 122693 0 0 0 3722 265 0 0 25 0 1 0 21702156 394117120 77829 4294967295 134512640 135987407 3221224560 3218997308 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8848/statm): 96220 77829 364 364 0 95856 0
[pid=8848] vsize: 384880
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 384880

[startup+50.0046 s]
Raw data (loadavg): 0.92 0.92 0.91 3/55 8848
Raw data (/proc/8848/stat): 8848 (pb2sat) R 8847 8848 4060 0 -1 0 166234 0 0 0 4626 355 0 0 25 0 1 0 21702156 534384640 101735 4294967295 134512640 135987407 3221224560 3219060136 135486800 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8848/statm): 130465 101735 364 364 0 130101 0
[pid=8848] vsize: 521860
Current children cumulated CPU time (s) 49.81
Current children cumulated vsize (Kb) 521860

[startup+60.0053 s]
Raw data (loadavg): 0.93 0.93 0.91 2/55 8848
Raw data (/proc/8848/stat): 8848 (pb2sat) R 8847 8848 4060 0 -1 0 186005 0 0 0 5579 400 0 0 25 0 1 0 21702156 563310592 121237 4294967295 134512640 135987407 3221224560 3218998000 134803360 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8848/statm): 137527 121237 364 364 0 137163 0
[pid=8848] vsize: 550108
Current children cumulated CPU time (s) 59.79
Current children cumulated vsize (Kb) 550108

[startup+70.0059 s]
Raw data (loadavg): 0.94 0.93 0.91 2/55 8848
Raw data (/proc/8848/stat): 8848 (pb2sat) R 8847 8848 4060 0 -1 0 227457 0 0 0 6483 493 0 0 25 0 1 0 21702156 688578560 137883 4294967295 134512640 135987407 3221224560 3220124544 134861889 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8848/statm): 168110 137883 364 364 0 167746 0
[pid=8848] vsize: 672440
Current children cumulated CPU time (s) 69.76
Current children cumulated vsize (Kb) 672440

[startup+80.0065 s]
Raw data (loadavg): 0.95 0.93 0.91 2/55 8848
Raw data (/proc/8848/stat): 8848 (pb2sat) R 8847 8848 4060 0 -1 0 243723 0 0 0 7443 531 0 0 25 0 1 0 21702156 746520576 153928 4294967295 134512640 135987407 3221224560 3219035312 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8848/statm): 182256 153928 364 364 0 181892 0
[pid=8848] vsize: 729024
Current children cumulated CPU time (s) 79.74
Current children cumulated vsize (Kb) 729024

[startup+90.0072 s]
Raw data (loadavg): 0.96 0.93 0.91 2/55 8848
Raw data (/proc/8848/stat): 8848 (pb2sat) R 8847 8848 4060 0 -1 0 262268 0 0 0 8401 570 0 0 25 0 1 0 21702156 778014720 172225 4294967295 134512640 135987407 3221224560 3221081004 135334682 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8848/statm): 189945 172225 364 364 0 189581 0
[pid=8848] vsize: 759780
Current children cumulated CPU time (s) 89.71
Current children cumulated vsize (Kb) 759780
One traced child (pid=8848) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 97.9935
CPU time (s): 97.6981
CPU user time (s): 91.6441
CPU system time (s): 6.05408
CPU usage (%): 99.6986
Max. virtual memory (cumulated for all children) (Kb): 759780

Verifier Data

ERROR: no interpretation found !