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-bandm.opb
MD5SUM69626010758fb8243fa871f79f2ff7ba
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 3140
Biggest coefficient in the objective function 52428800000
Number of bits for the biggest coefficient in the objective function 36
Sum of the numbers in the objective function 4450852748100
Number of bits of the sum of numbers in the objective function 43
Biggest number in a constraint 109051904000
Number of bits of the biggest number in a constraint 37
Biggest sum of numbers in a constraint 4450852748100
Number of bits of the biggest sum of numbers43
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.907861
Number of variables9440
Total number of constraints305
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 constraints305
Minimum length of a constraint20
Maximum length of a constraint1400

Trace number 10249

Launcher Data

LAUNCH ON wulflinc32 THE 2005-09-23 17:42:51 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8997 boxname=wulflinc32 idbench=793 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  69626010758fb8243fa871f79f2ff7ba  /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-13-7-bandm.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-13-7-bandm.opb
IDLAUNCH: 8997
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.145
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		: 451.145
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:      1034724 kB
MemFree:        921132 kB
Buffers:         15200 kB
Cached:          78572 kB
SwapCached:          0 kB
Active:          43136 kB
Inactive:        53544 kB
HighTotal:      131072 kB
HighFree:        48064 kB
LowTotal:       903652 kB
LowFree:        873068 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6988 kB
Slab:            11316 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:44:32 (client local time) WITH STATUS 0 IN 99.3359 SECONDS
stats: 8997 7 99.3359 0

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
s UNKNOWN

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/8478/stat): 8478 (pb2sat) R 8477 8478 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22034468 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8478/statm): 373 2 364 364 0 9 0
[pid=8478] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-13-7-bandm.opb

[startup+10.0019 s]
Raw data (loadavg): 0.96 0.99 0.96 2/55 8478
Raw data (/proc/8478/stat): 8478 (pb2sat) R 8477 8478 4005 0 -1 0 28422 0 0 0 936 61 0 0 25 0 1 0 22034468 86949888 17282 4294967295 134512640 135987407 3221224560 3221198864 134559955 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8478/statm): 21228 17282 364 364 0 20864 0
[pid=8478] vsize: 84912
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 84912

[startup+20.0027 s]
Raw data (loadavg): 0.96 0.99 0.96 2/55 8478
Raw data (/proc/8478/stat): 8478 (pb2sat) R 8477 8478 4005 0 -1 0 58311 0 0 0 1872 123 0 0 25 0 1 0 22034468 180342784 35960 4294967295 134512640 135987407 3221224560 3221193984 134556230 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8478/statm): 44029 35960 364 364 0 43665 0
[pid=8478] vsize: 176116
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 176116

[startup+30.0035 s]
Raw data (loadavg): 0.97 0.99 0.96 2/55 8478
Raw data (/proc/8478/stat): 8478 (pb2sat) R 8477 8478 4005 0 -1 0 96971 0 0 0 2790 202 0 0 25 0 1 0 22034468 295596032 52418 4294967295 134512640 135987407 3221224560 3221210968 134802665 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8478/statm): 72167 52418 364 364 0 71803 0
[pid=8478] vsize: 288668
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 288668

[startup+40.0043 s]
Raw data (loadavg): 0.97 0.99 0.96 2/55 8478
Raw data (/proc/8478/stat): 8478 (pb2sat) R 8477 8478 4005 0 -1 0 109769 0 0 0 3762 230 0 0 25 0 1 0 22034468 331608064 64993 4294967295 134512640 135987407 3221224560 3221201644 135499901 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8478/statm): 80959 64993 364 364 0 80595 0
[pid=8478] vsize: 323836
Current children cumulated CPU time (s) 39.92
Current children cumulated vsize (Kb) 323836

[startup+50.005 s]
Raw data (loadavg): 0.98 0.99 0.96 2/55 8478
Raw data (/proc/8478/stat): 8478 (pb2sat) R 8477 8478 4005 0 -1 0 137247 0 0 0 4706 283 0 0 25 0 1 0 22034468 503828480 91769 4294967295 134512640 135987407 3221224560 3221199040 134856374 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8478/statm): 123005 91769 364 364 0 122641 0
[pid=8478] vsize: 492020
Current children cumulated CPU time (s) 49.89
Current children cumulated vsize (Kb) 492020

[startup+60.0048 s]
Raw data (loadavg): 0.98 0.99 0.96 2/55 8478
Raw data (/proc/8478/stat): 8478 (pb2sat) R 8477 8478 4005 0 -1 0 187533 0 0 0 5604 384 0 0 25 0 1 0 22034468 566169600 98366 4294967295 134512640 135987407 3221224560 3221208832 135477294 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8478/statm): 138225 98366 364 364 0 137861 0
[pid=8478] vsize: 552900
Current children cumulated CPU time (s) 59.88
Current children cumulated vsize (Kb) 552900

[startup+70.0056 s]
Raw data (loadavg): 0.98 0.99 0.96 2/55 8478
Raw data (/proc/8478/stat): 8478 (pb2sat) R 8477 8478 4005 0 -1 0 199512 0 0 0 6575 412 0 0 25 0 1 0 22034468 602886144 110121 4294967295 134512640 135987407 3221224560 3221216948 135480535 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8478/statm): 147189 110121 364 364 0 146825 0
[pid=8478] vsize: 588756
Current children cumulated CPU time (s) 69.87
Current children cumulated vsize (Kb) 588756

[startup+80.0063 s]
Raw data (loadavg): 0.98 0.99 0.96 2/55 8478
Raw data (/proc/8478/stat): 8478 (pb2sat) R 8477 8478 4005 0 -1 0 213883 0 0 0 7545 442 0 0 25 0 1 0 22034468 607825920 124245 4294967295 134512640 135987407 3221224560 3221132428 135480440 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8478/statm): 148395 124245 364 364 0 148031 0
[pid=8478] vsize: 593580
Current children cumulated CPU time (s) 79.87
Current children cumulated vsize (Kb) 593580

[startup+90.0071 s]
Raw data (loadavg): 0.99 0.99 0.96 2/55 8478
Raw data (/proc/8478/stat): 8478 (pb2sat) R 8477 8478 4005 0 -1 0 229866 0 0 0 8509 477 0 0 25 0 1 0 22034468 618233856 139987 4294967295 134512640 135987407 3221224560 3221153420 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8478/statm): 150936 139987 364 364 0 150572 0
[pid=8478] vsize: 603744
Current children cumulated CPU time (s) 89.86
Current children cumulated vsize (Kb) 603744



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+99.1735 s]
Raw data (loadavg): 0.99 0.99 0.96 1/55 8478
Raw data (/proc/8478/stat): 8478 (pb2sat) T 8477 8478 4005 0 -1 0 243354 0 0 0 9394 506 0 0 25 0 1 0 22034468 971489280 153311 4294967295 134512640 135987407 3221224560 3221153152 135544035 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/8478/statm): 237180 153311 364 364 0 236816 0
[pid=8478] vsize: 948720
Current children cumulated CPU time (s) 99
Current children cumulated vsize (Kb) 948720

Sending SIGTERM to -8478
Sleeping 2 seconds

[startup+100.008 s]
Raw data (loadavg): 0.99 0.99 0.96 1/56 8479
Raw data (/proc/8478/stat): 8478 (pb2sat) S 8477 8478 4005 0 -1 0 243355 0 0 0 9395 506 0 0 25 0 1 0 22034468 971489280 153312 4294967295 134512640 135987407 3221224560 3221151464 135549753 0 16384 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8478/statm): 237180 153312 364 364 0 236816 0
[pid=8478] vsize: 948720
Current children cumulated CPU time (s) 99.01
Current children cumulated vsize (Kb) 948720
Sending SIGKILL to -8478
One traced child (pid=8478) ended because it received signal 9 (SIGKILL)
All traced children have exited ! Game is over.

Child ended because it received signal 9 (SIGKILL)
Real time (s): 101.5
CPU time (s): 99.3359
CPU user time (s): 93.9507
CPU system time (s): 5.38518
CPU usage (%): 97.8681
Max. virtual memory (cumulated for all children) (Kb): 948720

Verifier Data

ERROR: no interpretation found !