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-standata.opb
MD5SUM6b45570c3ad2b7b75465bdaa58eb934a
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 210
Biggest coefficient in the objective function 53687091200
Number of bits for the biggest coefficient in the objective function 36
Sum of the numbers in the objective function 326417514192
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 77387257610240
Number of bits of the biggest number in a constraint 47
Biggest sum of numbers in a constraint 2427818341201528
Number of bits of the biggest sum of numbers52
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables30004
Total number of constraints462
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 constraints462
Minimum length of a constraint11
Maximum length of a constraint22350

Trace number 9926

Launcher Data

LAUNCH ON wulflinc6 THE 2005-09-23 16:12:54 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8684 boxname=wulflinc6 idbench=480 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  6b45570c3ad2b7b75465bdaa58eb934a  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-standata.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-standata.opb
IDLAUNCH: 8684
/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:        925780 kB
Buffers:         12752 kB
Cached:          78708 kB
SwapCached:          0 kB
Active:          43552 kB
Inactive:        50792 kB
HighTotal:      131008 kB
HighFree:        48832 kB
LowTotal:       903652 kB
LowFree:        876948 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8980 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:14:30 (client local time) WITH STATUS 1 IN 96.1564 SECONDS
stats: 8684 7 96.1564 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/8037/stat): 8037 (pb2sat) R 8036 8037 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21551581 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8037/statm): 373 2 364 364 0 9 0
[pid=8037] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-standata.opb

[startup+10.0027 s]
Raw data (loadavg): 0.92 0.93 0.96 2/55 8037
Raw data (/proc/8037/stat): 8037 (pb2sat) R 8036 8037 4060 0 -1 0 28676 0 0 0 920 76 0 0 25 0 1 0 21551581 80711680 17504 4294967295 134512640 135987407 3221224560 3221177208 135487877 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8037/statm): 19705 17504 364 364 0 19341 0
[pid=8037] vsize: 78820
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 78820

[startup+20.0034 s]
Raw data (loadavg): 0.93 0.93 0.96 2/55 8037
Raw data (/proc/8037/stat): 8037 (pb2sat) R 8036 8037 4060 0 -1 0 57634 0 0 0 1852 144 0 0 25 0 1 0 21551581 158965760 35203 4294967295 134512640 135987407 3221224560 3221175652 134537546 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8037/statm): 38810 35203 364 364 0 38446 0
[pid=8037] vsize: 155240
Current children cumulated CPU time (s) 19.96
Current children cumulated vsize (Kb) 155240

[startup+30.0042 s]
Raw data (loadavg): 0.94 0.93 0.96 2/55 8037
Raw data (/proc/8037/stat): 8037 (pb2sat) R 8036 8037 4060 0 -1 0 97882 0 0 0 2763 229 0 0 25 0 1 0 21551581 309661696 53229 4294967295 134512640 135987407 3221224560 3221170604 135480468 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8037/statm): 75601 53229 364 364 0 75237 0
[pid=8037] vsize: 302404
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 302404

[startup+40.0049 s]
Raw data (loadavg): 0.95 0.93 0.96 2/55 8037
Raw data (/proc/8037/stat): 8037 (pb2sat) R 8036 8037 4060 0 -1 0 115218 0 0 0 3719 272 0 0 25 0 1 0 21551581 315662336 70275 4294967295 134512640 135987407 3221224560 3220904660 135488057 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8037/statm): 77066 70275 364 364 0 76702 0
[pid=8037] vsize: 308264
Current children cumulated CPU time (s) 39.91
Current children cumulated vsize (Kb) 308264

[startup+50.0057 s]
Raw data (loadavg): 0.95 0.94 0.96 2/55 8037
Raw data (/proc/8037/stat): 8037 (pb2sat) R 8036 8037 4060 0 -1 0 182477 0 0 0 4578 409 0 0 25 0 1 0 21551581 557387776 93357 4294967295 134512640 135987407 3221224560 3220900076 134637024 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8037/statm): 136081 93357 364 364 0 135717 0
[pid=8037] vsize: 544324
Current children cumulated CPU time (s) 49.87
Current children cumulated vsize (Kb) 544324

[startup+60.0064 s]
Raw data (loadavg): 0.96 0.94 0.96 2/55 8037
Raw data (/proc/8037/stat): 8037 (pb2sat) R 8036 8037 4060 0 -1 0 200126 0 0 0 5537 448 0 0 25 0 1 0 21551581 615821312 110783 4294967295 134512640 135987407 3221224560 3220899680 134878690 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8037/statm): 150347 110783 364 364 0 149983 0
[pid=8037] vsize: 601388
Current children cumulated CPU time (s) 59.85
Current children cumulated vsize (Kb) 601388

[startup+70.0072 s]
Raw data (loadavg): 0.97 0.94 0.96 2/55 8037
Raw data (/proc/8037/stat): 8037 (pb2sat) R 8036 8037 4060 0 -1 0 220178 0 0 0 6500 483 0 0 25 0 1 0 21551581 645013504 130583 4294967295 134512640 135987407 3221224560 3220901168 134559955 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8037/statm): 157474 130583 364 364 0 157110 0
[pid=8037] vsize: 629896
Current children cumulated CPU time (s) 69.83
Current children cumulated vsize (Kb) 629896

[startup+80.0079 s]
Raw data (loadavg): 0.97 0.94 0.96 2/55 8037
Raw data (/proc/8037/stat): 8037 (pb2sat) R 8036 8037 4060 0 -1 0 239582 0 0 0 7461 520 0 0 25 0 1 0 21551581 672219136 149744 4294967295 134512640 135987407 3221224560 3220902032 134878060 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8037/statm): 164116 149744 364 364 0 163752 0
[pid=8037] vsize: 656464
Current children cumulated CPU time (s) 79.81
Current children cumulated vsize (Kb) 656464

[startup+90.0086 s]
Raw data (loadavg): 0.98 0.94 0.96 2/55 8037
Raw data (/proc/8037/stat): 8037 (pb2sat) R 8036 8037 4060 0 -1 0 254522 0 0 0 8427 552 0 0 25 0 1 0 21551581 743903232 164498 4294967295 134512640 135987407 3221224560 3220908172 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8037/statm): 181617 164500 364 364 0 181253 0
[pid=8037] vsize: 726468
Current children cumulated CPU time (s) 89.79
Current children cumulated vsize (Kb) 726468
One traced child (pid=8037) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 96.3662
CPU time (s): 96.1564
CPU user time (s): 90.2573
CPU system time (s): 5.8991
CPU usage (%): 99.7822
Max. virtual memory (cumulated for all children) (Kb): 726468

Verifier Data

ERROR: no interpretation found !