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/plato.asu.edu/pub/fctp/normalized-mps-v2-13-7-bk4x3.opb
MD5SUMc2339539ffa69702e62053614fe34ce1
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 44800
Optimality of the best value was proved YES
Number of terms in the objective function 252
Biggest coefficient in the objective function 2621440
Number of bits for the biggest coefficient in the objective function 22
Sum of the numbers in the objective function 35682270
Number of bits of the sum of numbers in the objective function 26
Biggest number in a constraint 2621440
Number of bits of the biggest number in a constraint 22
Biggest sum of numbers in a constraint 35682270
Number of bits of the biggest sum of numbers26
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark15.3857
Number of variables252
Total number of constraints19
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 constraints19
Minimum length of a constraint21
Maximum length of a constraint80

Trace number 5262

Launcher Data

LAUNCH ON wulflinc25 THE 2005-09-20 00:06:24 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=1061 boxname=wulflinc25 idbench=1061 idsolver=1 numberseed=0
MD5SUM SOLVER: 38f99674050b34630888bf623b924b59  /oldhome/oroussel/solvers/bsolo
MD5SUM BENCH:  c2339539ffa69702e62053614fe34ce1  /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-13-7-bk4x3.opb
REAL COMMAND:  bsolo /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-13-7-bk4x3.opb
IDLAUNCH: 1061
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.220
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		: 451.220
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:        920988 kB
Buffers:         16176 kB
Cached:          68568 kB
SwapCached:        868 kB
Active:          18320 kB
Inactive:        69024 kB
HighTotal:      131008 kB
HighFree:        58800 kB
LowTotal:       903652 kB
LowFree:        862188 kB
SwapTotal:     2097892 kB
SwapFree:      2096524 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5724 kB
Slab:            20516 kB
Committed_AS:    64132 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-20 00:06:40 (client local time) WITH STATUS 30 IN 15.3857 SECONDS
stats: 1061 0 15.3857 30

Solver Data

c INFO: OSL Context initialized.
c Initial problem consists of 252 variables and 26 constraints.
c No problem reductions applied in OPT. instance.
c	preprocess terminated. Elapsed time: 0.099
c After prepocess the problem consists of 154 variables and 26 constraints.
c Initial Lower Bound: 0
c Restart #1 #Var: 154 #Dec: 554 LB: 0 @ 0.237
c Restart #2 #Var: 154 #Dec: 1410 LB: 0 @ 0.526
c NEW SOLUTION FOUND: 58368 @ 0.852 @ #Dec. 2306
c NEW SOLUTION FOUND: 57344 @ 0.87 @ #Dec. 2325
c NEW SOLUTION FOUND: 55296 @ 0.973 @ #Dec. 2420
c NEW SOLUTION FOUND: 53760 @ 1.339 @ #Dec. 2755
c NEW SOLUTION FOUND: 52992 @ 1.411 @ #Dec. 2838
c NEW SOLUTION FOUND: 52736 @ 1.412 @ #Dec. 2840
c Restart #3 #Var: 154 #Dec: 3576 LB: 0 @ 2.229
c NEW SOLUTION FOUND: 49920 @ 2.591 @ #Dec. 4158
c NEW SOLUTION FOUND: 48640 @ 2.808 @ #Dec. 4410
c NEW SOLUTION FOUND: 46080 @ 2.824 @ #Dec. 4421
c NEW SOLUTION FOUND: 44800 @ 2.854 @ #Dec. 4443
c Restart #4 #Var: 154 #Dec: 5304 LB: 0 @ 4.415
c Restart #5 #Var: 154 #Dec: 6671 LB: 0 @ 6.845
c Restart #6 #Var: 154 #Dec: 8170 LB: 0 @ 8.11
c Restart #7 #Var: 154 #Dec: 10437 LB: 0 @ 10.618
c CHANGE to LPR mode... 	UB: 44800	MIS: 0	LPR: 41174 (0.017)	Diff: 0
c Restart #0 #Var: 154 #Dec: 13058 LB: 0 @ 14.693
s OPTIMUM FOUND
v -X0_bit_7 -X0_bit_6 -X0_bit_5 -X0_bit_4 -X0_bit_3 -X0_bit_2 -X0_bit_1 -X0_bit0 -X0_bit1 -X0_bit2 -X0_bit3 -X0_bit4 -X0_bit5 -X0_bit6 -X0_bit7 -X0_bit8 -X0_bit9 -X0_bit10 -X0_bit11 -X0_bit12 -X1_bit_7 -X1_bit_6 -X1_bit_5 -X1_bit_4 -X1_bit_3 -X1_bit_2 -X1_bit_1 -X1_bit0 -X1_bit1 -X1_bit2 -X1_bit3 -X1_bit4 -X1_bit5 -X1_bit6 -X1_bit7 -X1_bit8 -X1_bit9 -X1_bit10 -X1_bit11 -X1_bit12 -X2_bit_7 -X2_bit_6 -X2_bit_5 -X2_bit_4 -X2_bit_3 -X2_bit_2 -X2_bit_1 -X2_bit0 X2_bit1 -X2_bit2 X2_bit3 -X2_bit4 -X2_bit5 -X2_bit6 -X2_bit7 -X2_bit8 -X2_bit9 -X2_bit10 -X2_bit11 -X2_bit12 -X3_bit_7 -X3_bit_6 -X3_bit_5 -X3_bit_4 -X3_bit_3 -X3_bit_2 -X3_bit_1 -X3_bit0 -X3_bit1 -X3_bit2 -X3_bit3 -X3_bit4 -X3_bit5 -X3_bit6 -X3_bit7 -X3_bit8 -X3_bit9 -X3_bit10 -X3_bit11 -X3_bit12 -X4_bit_7 -X4_bit_6 -X4_bit_5 -X4_bit_4 -X4_bit_3 -X4_bit_2 -X4_bit_1 -X4_bit0 X4_bit1 X4_bit2 X4_bit3 X4_bit4 -X4_bit5 -X4_bit6 -X4_bit7 -X4_bit8 -X4_bit9 -X4_bit10 -X4_bit11 -X4_bit12 -X5_bit_7 -X5_bit_6 -X5_bit_5 -X5_bit_4 -X5_bit_3 -X5_bit_2 -X5_bit_1 -X5_bit0 -X5_bit1 -X5_bit2 -X5_bit3 -X5_bit4 -X5_bit5 -X5_bit6 -X5_bit7 -X5_bit8 -X5_bit9 -X5_bit10 -X5_bit11 -X5_bit12 -X6_bit_7 -X6_bit_6 -X6_bit_5 -X6_bit_4 -X6_bit_3 -X6_bit_2 -X6_bit_1 -X6_bit0 -X6_bit1 X6_bit2 -X6_bit3 X6_bit4 -X6_bit5 -X6_bit6 -X6_bit7 -X6_bit8 -X6_bit9 -X6_bit10 -X6_bit11 -X6_bit12 -X7_bit_7 -X7_bit_6 -X7_bit_5 -X7_bit_4 -X7_bit_3 -X7_bit_2 -X7_bit_1 -X7_bit0 -X7_bit1 X7_bit2 -X7_bit3 X7_bit4 -X7_bit5 -X7_bit6 -X7_bit7 -X7_bit8 -X7_bit9 -X7_bit10 -X7_bit11 -X7_bit12 -X8_bit_7 -X8_bit_6 -X8_bit_5 -X8_bit_4 -X8_bit_3 -X8_bit_2 -X8_bit_1 -X8_bit0 -X8_bit1 -X8_bit2 -X8_bit3 -X8_bit4 -X8_bit5 -X8_bit6 -X8_bit7 -X8_bit8 -X8_bit9 -X8_bit10 -X8_bit11 -X8_bit12 -X9_bit_7 -X9_bit_6 -X9_bit_5 -X9_bit_4 -X9_bit_3 -X9_bit_2 -X9_bit_1 -X9_bit0 -X9_bit1 -X9_bit2 -X9_bit3 -X9_bit4 -X9_bit5 -X9_bit6 -X9_bit7 -X9_bit8 -X9_bit9 -X9_bit10 -X9_bit11 -X9_bit12 -X10_bit_7 -X10_bit_6 -X10_bit_5 -X10_bit_4 -X10_bit_3 -X10_bit_2 -X10_bit_1 -X10_bit0 -X10_bit1 -X10_bit2 -X10_bit3 -X10_bit4 -X10_bit5 -X10_bit6 -X10_bit7 -X10_bit8 -X10_bit9 -X10_bit10 -X10_bit11 -X10_bit12 -X11_bit_7 -X11_bit_6 -X11_bit_5 -X11_bit_4 -X11_bit_3 -X11_bit_2 -X11_bit_1 -X11_bit0 -X11_bit1 X11_bit2 -X11_bit3 X11_bit4 -X11_bit5 -X11_bit6 -X11_bit7 -X11_bit8 -X11_bit9 -X11_bit10 -X11_bit11 -X11_bit12 -Y0_bit0 -Y1_bit0 Y2_bit0 -Y3_bit0 Y4_bit0 -Y5_bit0 Y6_bit0 Y7_bit0 -Y8_bit0 -Y9_bit0 -Y10_bit0 Y11_bit0 
c Cost: 44800
c Exit Code: 30
c Total time: 15.363 s

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/25451/stat): 25451 (bsolo) R 25450 25451 4419 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1854112846 438272 3 4294967295 134512640 134736556 3221224560 3221224560 1073744960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/25451/statm): 107 3 90 68 0 39 0
[pid=25451] vsize: 428
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libosl.so
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open syscall for file i686/libosl.so
open syscall for file mmx/libosl.so
open syscall for file libosl.so
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libosl.so
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open syscall for file /oldhome/oroussel/lib/libstdc++-libc6.2-2.so.3
open syscall for file /etc/ld.so.cache
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open syscall for file /oldhome/oroussel/lib/libm.so.6
open syscall for file /lib/tls/libm.so.6
open syscall for file tls/i686/mmx/libpthread.so.0
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open syscall for file libpthread.so.0
open syscall for file /oldhome/oroussel/lib/libpthread.so.0
open syscall for file /lib/tls/libpthread.so.0
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open syscall for file i686/libgcc_s.so.1
open syscall for file mmx/libgcc_s.so.1
open syscall for file libgcc_s.so.1
open syscall for file /oldhome/oroussel/lib/libgcc_s.so.1
open syscall for file /lib/libgcc_s.so.1
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open syscall for file /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-13-7-bk4x3.opb

[startup+10.003 s]
Raw data (loadavg): 0.90 0.94 0.98 2/56 25451
Raw data (/proc/25451/stat): 25451 (bsolo) R 25450 25451 4419 0 -1 0 3091 0 0 0 938 24 0 0 25 0 1 0 1854112846 15769600 3002 4294967295 134512640 134736556 3221224560 3221223312 134597438 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/25451/statm): 3850 3002 1116 68 0 3782 0
[pid=25451] vsize: 15400
Current children cumulated CPU time (s) 9.62
Current children cumulated vsize (Kb) 15400
One traced child (pid=25451) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 15.9276
CPU time (s): 15.3857
CPU user time (s): 15.0357
CPU system time (s): 0.349946
CPU usage (%): 96.5977
Max. virtual memory (cumulated for all children) (Kb): 15400

Verifier Data

Verifier:	OK	44800