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-v2-13-7/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-agg2.opb
MD5SUM579700efef18fa6408ae43e64bbc1422
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 4620
Biggest coefficient in the objective function 52470743040
Number of bits for the biggest coefficient in the objective function 36
Sum of the numbers in the objective function 8317243422675
Number of bits of the sum of numbers in the objective function 43
Biggest number in a constraint 22229811200000
Number of bits of the biggest number in a constraint 45
Biggest sum of numbers in a constraint 45187440996225
Number of bits of the biggest sum of numbers46
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.32395
Number of variables6040
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 constraint20
Maximum length of a constraint960

Trace number 10246

Launcher Data

LAUNCH ON wulflinc9 THE 2005-09-23 17:42:31 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8994 boxname=wulflinc9 idbench=790 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  579700efef18fa6408ae43e64bbc1422  /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-agg2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-agg2.opb
IDLAUNCH: 8994
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        907036 kB
Buffers:         13068 kB
Cached:          97024 kB
SwapCached:          0 kB
Active:          53296 kB
Inactive:        59720 kB
HighTotal:      131008 kB
HighFree:        30856 kB
LowTotal:       903652 kB
LowFree:        876180 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9036 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:44:18 (client local time) WITH STATUS 1 IN 107.357 SECONDS
stats: 8994 7 107.357 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/10701/stat): 10701 (pb2sat) R 10700 10701 4060 0 -1 0 18 0 0 0 0 0 0 0 20 0 1 0 22076639 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10701/statm): 373 2 364 364 0 9 0
[pid=10701] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-agg2.opb

[startup+10.0026 s]
Raw data (loadavg): 0.92 0.95 0.95 2/55 10701
Raw data (/proc/10701/stat): 10701 (pb2sat) R 10700 10701 4060 0 -1 0 27344 0 0 0 940 56 0 0 25 0 1 0 22076639 87187456 16211 4294967295 134512640 135987407 3221224560 3221163280 134887913 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10701/statm): 21286 16211 364 364 0 20922 0
[pid=10701] vsize: 85144
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 85144

[startup+20.0034 s]
Raw data (loadavg): 0.93 0.95 0.95 2/55 10701
Raw data (/proc/10701/stat): 10701 (pb2sat) R 10700 10701 4060 0 -1 0 57846 0 0 0 1876 117 0 0 25 0 1 0 22076639 181530624 35497 4294967295 134512640 135987407 3221224560 3221170976 134636917 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10701/statm): 44319 35497 364 364 0 43955 0
[pid=10701] vsize: 177276
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 177276

[startup+30.0042 s]
Raw data (loadavg): 0.94 0.95 0.95 2/55 10701
Raw data (/proc/10701/stat): 10701 (pb2sat) R 10700 10701 4060 0 -1 0 100825 0 0 0 2785 204 0 0 25 0 1 0 22076639 313946112 56274 4294967295 134512640 135987407 3221224560 3221177308 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10701/statm): 76647 56274 364 364 0 76283 0
[pid=10701] vsize: 306588
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 306588

[startup+40.0039 s]
Raw data (loadavg): 0.95 0.95 0.95 2/55 10701
Raw data (/proc/10701/stat): 10701 (pb2sat) R 10700 10701 4060 0 -1 0 119264 0 0 0 3749 239 0 0 25 0 1 0 22076639 372101120 74489 4294967295 134512640 135987407 3221224560 3221183356 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10701/statm): 90845 74489 364 364 0 90481 0
[pid=10701] vsize: 363380
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 363380

[startup+50.0047 s]
Raw data (loadavg): 0.96 0.95 0.95 2/55 10701
Raw data (/proc/10701/stat): 10701 (pb2sat) R 10700 10701 4060 0 -1 0 151754 0 0 0 4685 300 0 0 25 0 1 0 22076639 563105792 106268 4294967295 134512640 135987407 3221224560 3221189632 134856467 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10701/statm): 137477 106268 364 364 0 137113 0
[pid=10701] vsize: 549908
Current children cumulated CPU time (s) 49.85
Current children cumulated vsize (Kb) 549908

[startup+60.0055 s]
Raw data (loadavg): 0.96 0.96 0.95 2/55 10701
Raw data (/proc/10701/stat): 10701 (pb2sat) R 10700 10701 4060 0 -1 0 205218 0 0 0 5566 415 0 0 25 0 1 0 22076639 637751296 116047 4294967295 134512640 135987407 3221224560 3221191680 134877915 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10701/statm): 155701 116047 364 364 0 155337 0
[pid=10701] vsize: 622804
Current children cumulated CPU time (s) 59.81
Current children cumulated vsize (Kb) 622804

[startup+70.0063 s]
Raw data (loadavg): 0.97 0.96 0.95 2/55 10701
Raw data (/proc/10701/stat): 10701 (pb2sat) R 10700 10701 4060 0 -1 0 222190 0 0 0 6532 448 0 0 25 0 1 0 22076639 693743616 132812 4294967295 134512640 135987407 3221224560 3221196544 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10701/statm): 169371 132812 364 364 0 169007 0
[pid=10701] vsize: 677484
Current children cumulated CPU time (s) 69.8
Current children cumulated vsize (Kb) 677484

[startup+80.0081 s]
Raw data (loadavg): 0.97 0.96 0.95 2/55 10701
Raw data (/proc/10701/stat): 10701 (pb2sat) R 10700 10701 4060 0 -1 0 236857 0 0 0 7498 480 0 0 25 0 1 0 22076639 712433664 147296 4294967295 134512640 135987407 3221224560 3221128288 134537472 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10701/statm): 173934 147296 364 364 0 173570 0
[pid=10701] vsize: 695736
Current children cumulated CPU time (s) 79.78
Current children cumulated vsize (Kb) 695736

[startup+90.0089 s]
Raw data (loadavg): 0.98 0.96 0.95 2/55 10701
Raw data (/proc/10701/stat): 10701 (pb2sat) R 10700 10701 4060 0 -1 0 250227 0 0 0 8473 505 0 0 25 0 1 0 22076639 712843264 160425 4294967295 134512640 135987407 3221224560 3221136064 134560184 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10701/statm): 174034 160425 364 364 0 173670 0
[pid=10701] vsize: 696136
Current children cumulated CPU time (s) 89.78
Current children cumulated vsize (Kb) 696136

[startup+100.009 s]
Raw data (loadavg): 0.98 0.96 0.95 2/55 10701
Raw data (/proc/10701/stat): 10701 (pb2sat) R 10700 10701 4060 0 -1 0 260260 0 0 0 9454 524 0 0 25 0 1 0 22076639 763310080 170279 4294967295 134512640 135987407 3221224560 3221140308 135477879 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10701/statm): 186355 170279 364 364 0 185991 0
[pid=10701] vsize: 745420
Current children cumulated CPU time (s) 99.78
Current children cumulated vsize (Kb) 745420
One traced child (pid=10701) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 107.581
CPU time (s): 107.357
CPU user time (s): 101.681
CPU system time (s): 5.67614
CPU usage (%): 99.7917
Max. virtual memory (cumulated for all children) (Kb): 745420

Verifier Data

ERROR: no interpretation found !