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-pilot.opb
MD5SUMd9327b817828dc5afade576c2194d741
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 840
Biggest coefficient in the objective function 3784939929600
Number of bits for the biggest coefficient in the objective function 42
Sum of the numbers in the objective function 93738734889723
Number of bits of the sum of numbers in the objective function 47
Biggest number in a constraint 13851269529600000
Number of bits of the biggest number in a constraint 54
Biggest sum of numbers in a constraint 368128606591816686
Number of bits of the biggest sum of numbers59
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark19.1041
Number of variables86785
Total number of constraints2515
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 constraints2515
Minimum length of a constraint10
Maximum length of a constraint7620

Trace number 9906

Launcher Data

LAUNCH ON wulflinc13 THE 2005-09-23 16:09:00 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8654 boxname=wulflinc13 idbench=450 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  d9327b817828dc5afade576c2194d741  /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-pilot.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-pilot.opb
IDLAUNCH: 8654
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.180
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		: 451.180
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:        904844 kB
Buffers:         13916 kB
Cached:          97060 kB
SwapCached:          0 kB
Active:          64424 kB
Inactive:        49476 kB
HighTotal:      131008 kB
HighFree:        30352 kB
LowTotal:       903652 kB
LowFree:        874492 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10360 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:10:44 (client local time) WITH STATUS 1 IN 102.621 SECONDS
stats: 8654 7 102.621 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/7499/stat): 7499 (pb2sat) R 7498 7499 4060 0 -1 0 18 0 0 0 0 0 0 0 19 0 1 0 21511798 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/7499/statm): 373 2 364 364 0 9 0
[pid=7499] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-pilot.opb

[startup+10.0021 s]
Raw data (loadavg): 0.94 0.96 0.96 2/55 7499
Raw data (/proc/7499/stat): 7499 (pb2sat) R 7498 7499 4060 0 -1 0 29629 0 0 0 933 62 0 0 25 0 1 0 21511798 97067008 18475 4294967295 134512640 135987407 3221224560 3221191276 135499868 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7499/statm): 23698 18475 364 364 0 23334 0
[pid=7499] vsize: 94792
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 94792

[startup+20.0028 s]
Raw data (loadavg): 0.94 0.96 0.96 2/55 7499
Raw data (/proc/7499/stat): 7499 (pb2sat) R 7498 7499 4060 0 -1 0 60841 0 0 0 1866 126 0 0 25 0 1 0 21511798 194732032 38275 4294967295 134512640 135987407 3221224560 3221192124 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7499/statm): 47542 38275 364 364 0 47178 0
[pid=7499] vsize: 190168
Current children cumulated CPU time (s) 19.92
Current children cumulated vsize (Kb) 190168

[startup+30.0024 s]
Raw data (loadavg): 0.95 0.96 0.96 2/55 7499
Raw data (/proc/7499/stat): 7499 (pb2sat) R 7498 7499 4060 0 -1 0 93279 0 0 0 2800 188 0 0 25 0 1 0 21511798 279920640 59889 4294967295 134512640 135987407 3221224560 3221191964 135488078 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7499/statm): 68340 59889 364 364 0 67976 0
[pid=7499] vsize: 273360
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 273360

[startup+40.0031 s]
Raw data (loadavg): 0.96 0.96 0.96 2/55 7499
Raw data (/proc/7499/stat): 7499 (pb2sat) R 7498 7499 4060 0 -1 0 122274 0 0 0 3736 251 0 0 25 0 1 0 21511798 388968448 76376 4294967295 134512640 135987407 3221224560 3221193040 134878060 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7499/statm): 94963 76376 364 364 0 94599 0
[pid=7499] vsize: 379852
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 379852

[startup+50.0027 s]
Raw data (loadavg): 0.97 0.96 0.96 2/55 7499
Raw data (/proc/7499/stat): 7499 (pb2sat) R 7498 7499 4060 0 -1 0 166532 0 0 0 4644 338 0 0 25 0 1 0 21511798 528941056 99459 4294967295 134512640 135987407 3221224560 3221191296 134556156 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7499/statm): 129136 99459 364 364 0 128772 0
[pid=7499] vsize: 516544
Current children cumulated CPU time (s) 49.82
Current children cumulated vsize (Kb) 516544

[startup+60.0024 s]
Raw data (loadavg): 0.97 0.96 0.96 2/55 7499
Raw data (/proc/7499/stat): 7499 (pb2sat) R 7498 7499 4060 0 -1 0 185347 0 0 0 5606 374 0 0 25 0 1 0 21511798 555974656 118032 4294967295 134512640 135987407 3221224560 3221192320 134856387 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7499/statm): 135736 118033 364 364 0 135372 0
[pid=7499] vsize: 542944
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 542944

[startup+70.002 s]
Raw data (loadavg): 0.97 0.96 0.96 2/55 7499
Raw data (/proc/7499/stat): 7499 (pb2sat) R 7498 7499 4060 0 -1 0 226084 0 0 0 6520 458 0 0 25 0 1 0 21511798 680427520 133988 4294967295 134512640 135987407 3221224560 3221192176 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7499/statm): 166120 133989 364 364 0 165756 0
[pid=7499] vsize: 664480
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 664480

[startup+80.0017 s]
Raw data (loadavg): 0.98 0.96 0.96 2/55 7499
Raw data (/proc/7499/stat): 7499 (pb2sat) R 7498 7499 4060 0 -1 0 241812 0 0 0 7488 489 0 0 25 0 1 0 21511798 737992704 149412 4294967295 134512640 135987407 3221224560 3221193324 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7499/statm): 180174 149413 364 364 0 179810 0
[pid=7499] vsize: 720696
Current children cumulated CPU time (s) 79.77
Current children cumulated vsize (Kb) 720696

[startup+90.0014 s]
Raw data (loadavg): 0.98 0.96 0.96 1/55 7499
Raw data (/proc/7499/stat): 7499 (pb2sat) T 7498 7499 4060 0 -1 0 261364 0 0 0 8447 527 0 0 25 0 1 0 21511798 769335296 168404 4294967295 134512640 135987407 3221224560 3221193372 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/7499/statm): 187826 168404 364 364 0 187462 0
[pid=7499] vsize: 751304
Current children cumulated CPU time (s) 89.74
Current children cumulated vsize (Kb) 751304

[startup+100.001 s]
Raw data (loadavg): 0.98 0.97 0.96 2/55 7499
Raw data (/proc/7499/stat): 7499 (pb2sat) R 7498 7499 4060 0 -1 0 272108 0 0 0 9412 560 0 0 25 0 1 0 21511798 469430272 114151 4294967295 134512640 135987407 3221224560 3221223224 135477650 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7499/statm): 114607 114151 364 364 0 114243 0
[pid=7499] vsize: 458428
Current children cumulated CPU time (s) 99.72
Current children cumulated vsize (Kb) 458428
One traced child (pid=7499) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 102.892
CPU time (s): 102.621
CPU user time (s): 96.7733
CPU system time (s): 5.84811
CPU usage (%): 99.7369
Max. virtual memory (cumulated for all children) (Kb): 751304

Verifier Data

ERROR: no interpretation found !