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-sctap1.opb
MD5SUM6d2898572483dddc248ecc48cac97a0c
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 5613488
Optimality of the best value was proved NO
Number of terms in the objective function 7200
Biggest coefficient in the objective function 41943040
Number of bits for the biggest coefficient in the objective function 26
Sum of the numbers in the objective function 6207564000
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint 41943040
Number of bits of the biggest number in a constraint 26
Biggest sum of numbers in a constraint 6207564000
Number of bits of the biggest sum of numbers33
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1196.46
Number of variables9600
Total number of constraints300
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 constraints300
Minimum length of a constraint60
Maximum length of a constraint440

Trace number 10302

Launcher Data

LAUNCH ON wulflinc6 THE 2005-09-23 17:48:41 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9054 boxname=wulflinc6 idbench=850 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  6d2898572483dddc248ecc48cac97a0c  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-sctap1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-sctap1.opb
IDLAUNCH: 9054
/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:        919376 kB
Buffers:         13552 kB
Cached:          84232 kB
SwapCached:          0 kB
Active:          42388 kB
Inactive:        58324 kB
HighTotal:      131008 kB
HighFree:        43260 kB
LowTotal:       903652 kB
LowFree:        876116 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8912 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:50:14 (client local time) WITH STATUS 0 IN 90.3663 SECONDS
stats: 9054 7 90.3663 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/10102/stat): 10102 (pb2sat) R 10101 10102 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22126424 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10102/statm): 373 2 364 364 0 9 0
[pid=10102] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-sctap1.opb

[startup+10.0021 s]
Raw data (loadavg): 0.90 0.92 0.90 2/55 10102
Raw data (/proc/10102/stat): 10102 (pb2sat) R 10101 10102 4060 0 -1 0 27531 0 0 0 934 63 0 0 25 0 1 0 22126424 80932864 16377 4294967295 134512640 135987407 3221224560 3221209200 134639018 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10102/statm): 19759 16377 364 364 0 19395 0
[pid=10102] vsize: 79036
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 79036

[startup+20.0029 s]
Raw data (loadavg): 0.92 0.92 0.91 2/55 10102
Raw data (/proc/10102/stat): 10102 (pb2sat) R 10101 10102 4060 0 -1 0 56161 0 0 0 1871 125 0 0 25 0 1 0 22126424 158646272 33746 4294967295 134512640 135987407 3221224560 3221203456 134878065 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10102/statm): 38732 33746 364 364 0 38368 0
[pid=10102] vsize: 154928
Current children cumulated CPU time (s) 19.96
Current children cumulated vsize (Kb) 154928

[startup+30.0036 s]
Raw data (loadavg): 0.93 0.92 0.91 2/55 10102
Raw data (/proc/10102/stat): 10102 (pb2sat) R 10101 10102 4060 0 -1 0 96890 0 0 0 2778 214 0 0 25 0 1 0 22126424 313171968 52258 4294967295 134512640 135987407 3221224560 3221209260 134669201 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10102/statm): 76458 52258 364 364 0 76094 0
[pid=10102] vsize: 305832
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 305832

[startup+40.0034 s]
Raw data (loadavg): 0.94 0.93 0.91 2/55 10102
Raw data (/proc/10102/stat): 10102 (pb2sat) R 10101 10102 4060 0 -1 0 113661 0 0 0 3739 254 0 0 25 0 1 0 22126424 318308352 68751 4294967295 134512640 135987407 3221224560 3221190944 134866800 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10102/statm): 77712 68751 364 364 0 77348 0
[pid=10102] vsize: 310848
Current children cumulated CPU time (s) 39.93
Current children cumulated vsize (Kb) 310848

[startup+50.0051 s]
Raw data (loadavg): 0.95 0.93 0.91 2/55 10102
Raw data (/proc/10102/stat): 10102 (pb2sat) R 10101 10102 4060 0 -1 0 178115 0 0 0 4604 385 0 0 25 0 1 0 22126424 648257536 113604 4294967295 134512640 135987407 3221224560 3221157232 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10102/statm): 158266 113604 364 364 0 157902 0
[pid=10102] vsize: 633064
Current children cumulated CPU time (s) 49.89
Current children cumulated vsize (Kb) 633064

[startup+60.0049 s]
Raw data (loadavg): 0.96 0.93 0.91 2/55 10102
Raw data (/proc/10102/stat): 10102 (pb2sat) R 10101 10102 4060 0 -1 0 195457 0 0 0 5557 430 0 0 25 0 1 0 22126424 596762624 106138 4294967295 134512640 135987407 3221224560 3221202716 134669203 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10102/statm): 145694 106138 364 364 0 145330 0
[pid=10102] vsize: 582776
Current children cumulated CPU time (s) 59.87
Current children cumulated vsize (Kb) 582776

[startup+70.0046 s]
Raw data (loadavg): 0.96 0.93 0.91 2/55 10102
Raw data (/proc/10102/stat): 10102 (pb2sat) R 10101 10102 4060 0 -1 0 211058 0 0 0 6523 464 0 0 25 0 1 0 22126424 601628672 121482 4294967295 134512640 135987407 3221224560 3221121904 134637854 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10102/statm): 146882 121482 364 364 0 146518 0
[pid=10102] vsize: 587528
Current children cumulated CPU time (s) 69.87
Current children cumulated vsize (Kb) 587528

[startup+80.0053 s]
Raw data (loadavg): 0.97 0.93 0.91 2/55 10102
Raw data (/proc/10102/stat): 10102 (pb2sat) R 10101 10102 4060 0 -1 0 226480 0 0 0 7489 497 0 0 25 0 1 0 22126424 605143040 136646 4294967295 134512640 135987407 3221224560 3221162416 134856487 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10102/statm): 147740 136647 364 364 0 147376 0
[pid=10102] vsize: 590960
Current children cumulated CPU time (s) 79.86
Current children cumulated vsize (Kb) 590960

[startup+90.0051 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 10102
Raw data (/proc/10102/stat): 10102 (pb2sat) R 10101 10102 4060 0 -1 0 239216 0 0 0 8461 525 0 0 25 0 1 0 22126424 660475904 149178 4294967295 134512640 135987407 3221224560 3221152440 135486800 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10102/statm): 161249 149178 364 364 0 160885 0
[pid=10102] vsize: 644996
Current children cumulated CPU time (s) 89.86
Current children cumulated vsize (Kb) 644996



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+90.1831 s]
Raw data (loadavg): 0.97 0.94 0.91 1/55 10102
Raw data (/proc/10102/stat): 10102 (pb2sat) T 10101 10102 4060 0 -1 0 239571 0 0 0 8477 526 0 0 25 0 1 0 22126424 946098176 149528 4294967295 134512640 135987407 3221224560 3221150832 135544035 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/10102/statm): 230981 149528 364 364 0 230617 0
[pid=10102] vsize: 923924
Current children cumulated CPU time (s) 90.03
Current children cumulated vsize (Kb) 923924

Sending SIGTERM to -10102
Sleeping 2 seconds
Sending SIGKILL to -10102
One traced child (pid=10102) 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): 92.494
CPU time (s): 90.3663
CPU user time (s): 84.7911
CPU system time (s): 5.57515
CPU usage (%): 97.6996
Max. virtual memory (cumulated for all children) (Kb): 923924

Verifier Data

ERROR: no interpretation found !