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-blend.opb
MD5SUMc063ddfef33c4e28cf3156e6931d679b
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 660
Biggest coefficient in the objective function 14388140441600
Number of bits for the biggest coefficient in the objective function 44
Sum of the numbers in the objective function 203610440670021
Number of bits of the sum of numbers in the objective function 48
Biggest number in a constraint 78436840243200
Number of bits of the biggest number in a constraint 47
Biggest sum of numbers in a constraint 789015556311444
Number of bits of the biggest sum of numbers50
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1229
Number of variables2490
Total number of constraints74
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 constraints74
Minimum length of a constraint30
Maximum length of a constraint780

Trace number 9859

Launcher Data

LAUNCH ON wulflinc14 THE 2005-09-23 16:01:33 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8615 boxname=wulflinc14 idbench=411 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  c063ddfef33c4e28cf3156e6931d679b  /oldhome/oroussel/tmp/wulflinc14/normalized-mps-v2-20-10-blend.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc14/normalized-mps-v2-20-10-blend.opb
IDLAUNCH: 8615
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.058
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		: 451.058
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:        995380 kB
Buffers:          1824 kB
Cached:          20412 kB
SwapCached:          0 kB
Active:          17036 kB
Inactive:         8144 kB
HighTotal:      131008 kB
HighFree:       106372 kB
LowTotal:       903652 kB
LowFree:        889008 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8608 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:03:23 (client local time) WITH STATUS 1 IN 109.331 SECONDS
stats: 8615 7 109.331 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/7553/stat): 7553 (pb2sat) R 7552 7553 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21466955 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/7553/statm): 373 2 364 364 0 9 0
[pid=7553] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc14/normalized-mps-v2-20-10-blend.opb

[startup+10.0016 s]
Raw data (loadavg): 0.93 0.98 0.99 2/55 7553
Raw data (/proc/7553/stat): 7553 (pb2sat) T 7552 7553 4060 0 -1 0 31138 0 0 0 928 67 0 0 25 0 1 0 21466955 98865152 19987 4294967295 134512640 135987407 3221224560 3221211884 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/7553/statm): 24137 19987 364 364 0 23773 0
[pid=7553] vsize: 96548
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 96548

[startup+20.0023 s]
Raw data (loadavg): 0.94 0.98 0.99 2/55 7553
Raw data (/proc/7553/stat): 7553 (pb2sat) R 7552 7553 4060 0 -1 0 56473 0 0 0 1876 118 0 0 25 0 1 0 21466955 175529984 34104 4294967295 134512640 135987407 3221224560 3221212784 134865148 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7553/statm): 42854 34104 364 364 0 42490 0
[pid=7553] vsize: 171416
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 171416

[startup+30.003 s]
Raw data (loadavg): 0.95 0.98 0.99 2/55 7553
Raw data (/proc/7553/stat): 7553 (pb2sat) R 7552 7553 4060 0 -1 0 94498 0 0 0 2798 194 0 0 25 0 1 0 21466955 290529280 49932 4294967295 134512640 135987407 3221224560 3221095184 134856380 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7553/statm): 70930 49932 364 364 0 70566 0
[pid=7553] vsize: 283720
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 283720

[startup+40.0027 s]
Raw data (loadavg): 0.96 0.98 0.99 2/55 7553
Raw data (/proc/7553/stat): 7553 (pb2sat) R 7552 7553 4060 0 -1 0 110866 0 0 0 3761 229 0 0 25 0 1 0 21466955 342880256 66085 4294967295 134512640 135987407 3221224560 3221098592 134878583 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7553/statm): 83711 66085 364 364 0 83347 0
[pid=7553] vsize: 334844
Current children cumulated CPU time (s) 39.9
Current children cumulated vsize (Kb) 334844

[startup+50.0034 s]
Raw data (loadavg): 0.96 0.98 0.99 2/55 7553
Raw data (/proc/7553/stat): 7553 (pb2sat) R 7552 7553 4060 0 -1 0 141127 0 0 0 4702 284 0 0 25 0 1 0 21466955 530542592 95694 4294967295 134512640 135987407 3221224560 3221099552 134856702 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7553/statm): 129527 95694 364 364 0 129163 0
[pid=7553] vsize: 518108
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 518108

[startup+60.004 s]
Raw data (loadavg): 0.97 0.98 0.99 2/55 7553
Raw data (/proc/7553/stat): 7553 (pb2sat) R 7552 7553 4060 0 -1 0 195495 0 0 0 5588 394 0 0 25 0 1 0 21466955 607637504 106337 4294967295 134512640 135987407 3221224560 3221103052 134669203 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7553/statm): 148349 106337 364 364 0 147985 0
[pid=7553] vsize: 593396
Current children cumulated CPU time (s) 59.82
Current children cumulated vsize (Kb) 593396

[startup+70.0047 s]
Raw data (loadavg): 0.97 0.98 0.99 2/55 7553
Raw data (/proc/7553/stat): 7553 (pb2sat) R 7552 7553 4060 0 -1 0 211880 0 0 0 6554 427 0 0 25 0 1 0 21466955 664170496 122529 4294967295 134512640 135987407 3221224560 3221103728 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7553/statm): 162151 122529 364 364 0 161787 0
[pid=7553] vsize: 648604
Current children cumulated CPU time (s) 69.81
Current children cumulated vsize (Kb) 648604

[startup+80.0054 s]
Raw data (loadavg): 0.98 0.98 0.99 2/55 7553
Raw data (/proc/7553/stat): 7553 (pb2sat) R 7552 7553 4060 0 -1 0 230706 0 0 0 7517 463 0 0 25 0 1 0 21466955 689467392 141127 4294967295 134512640 135987407 3221224560 3221105248 134865141 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7553/statm): 168327 141127 364 364 0 167963 0
[pid=7553] vsize: 673308
Current children cumulated CPU time (s) 79.8
Current children cumulated vsize (Kb) 673308

[startup+90.005 s]
Raw data (loadavg): 0.98 0.98 0.99 2/55 7553
Raw data (/proc/7553/stat): 7553 (pb2sat) R 7552 7553 4060 0 -1 0 249076 0 0 0 8480 497 0 0 25 0 1 0 21466955 713662464 159275 4294967295 134512640 135987407 3221224560 3221110080 134636949 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7553/statm): 174234 159275 364 364 0 173870 0
[pid=7553] vsize: 696936
Current children cumulated CPU time (s) 89.77
Current children cumulated vsize (Kb) 696936

[startup+100.005 s]
Raw data (loadavg): 0.98 0.98 0.99 2/55 7553
Raw data (/proc/7553/stat): 7553 (pb2sat) R 7552 7553 4060 0 -1 0 263475 0 0 0 9453 523 0 0 25 0 1 0 21466955 783065088 173499 4294967295 134512640 135987407 3221224560 3221112320 134856702 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7553/statm): 191178 173499 364 364 0 190814 0
[pid=7553] vsize: 764712
Current children cumulated CPU time (s) 99.76
Current children cumulated vsize (Kb) 764712
One traced child (pid=7553) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 109.58
CPU time (s): 109.331
CPU user time (s): 103.591
CPU system time (s): 5.74013
CPU usage (%): 99.7732
Max. virtual memory (cumulated for all children) (Kb): 764712

Verifier Data

ERROR: no interpretation found !