Trace number 39756

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 into four (or five) parts:
  1. 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 ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. 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.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. 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 X seconds (see the parameters in the trace). 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 X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    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.
  5. 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 provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerObjective functionCPU timeWall clock time
bsolo 2006/05OPT0 40.1849 40.2123

General information on the benchmark

Namenormalized-PB06/OPT-MEDINT/mps-v2-20-10/MIPLIB/
miplib/normalized-mps-v2-20-10-enigma.opb
MD5SUM40c4ca45f28cf4c12979bc2b22100ada
Bench CategoryOPT-MEDINT (optimisation, medium integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.173973
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved YES
Number of variables100
Total number of constraints21
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)20
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint9
Maximum length of a constraint90
Number of terms in the objective function 9
Biggest coefficient in the objective function 9
Number of bits for the biggest coefficient in the objective function 4
Sum of the numbers in the objective function 45
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 900207
Number of bits of the biggest number in a constraint 20
Biggest sum of numbers in a constraint 9508275
Number of bits of the biggest sum of numbers24
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data (download as text)

0.00	c Time Limit set via PBTIMEOUT to 1800
0.01	c INFO: OSL Context initialized.
0.02	c Initial problem consists of 100 variables and 42 constraints.
0.02	c No problem reductions applied in OPT. instance.
0.02	c	preprocess terminated. Elapsed time: 0.005
0.02	c After prepocess the problem consists of 100 variables and 42 constraints.
0.02	c Initial Lower Bound: 0
0.02	c Restart #1 #Var: 100 LB: 0 @ 0.014
0.04	c Restart #2 #Var: 100 LB: 0 @ 0.032
0.07	c Restart #3 #Var: 100 LB: 0 @ 0.06
0.11	c Restart #4 #Var: 100 LB: 0 @ 0.101
0.17	c Restart #5 #Var: 100 LB: 0 @ 0.163
0.25	c Restart #6 #Var: 100 LB: 0 @ 0.243
0.37	c Restart #7 #Var: 100 LB: 0 @ 0.355
0.51	c Restart #8 #Var: 100 LB: 0 @ 0.495
0.80	c Restart #9 #Var: 100 LB: 0 @ 0.785
1.06	c Restart #10 #Var: 100 LB: 0 @ 1.047
1.31	c Restart #11 #Var: 100 LB: 0 @ 1.3
1.76	c Restart #12 #Var: 100 LB: 0 @ 1.754
2.04	c Restart #13 #Var: 100 LB: 0 @ 2.033
2.60	c Restart #14 #Var: 100 LB: 0 @ 2.585
3.39	c Restart #15 #Var: 100 LB: 0 @ 3.375
3.91	c Restart #16 #Var: 100 LB: 0 @ 3.899
4.99	c Restart #17 #Var: 100 LB: 0 @ 4.98
6.89	c Restart #18 #Var: 100 LB: 0 @ 6.87
8.27	c Restart #19 #Var: 99 LB: 0 @ 8.253
9.26	c Restart #20 #Var: 99 LB: 0 @ 9.24
10.35	c Restart #21 #Var: 99 LB: 0 @ 10.335
11.15	c Restart #22 #Var: 99 LB: 0 @ 11.137
13.23	c Restart #23 #Var: 99 LB: 0 @ 13.212
16.06	c Restart #24 #Var: 98 LB: 0 @ 16.044
18.40	c Restart #25 #Var: 98 LB: 0 @ 18.384
21.36	c Restart #26 #Var: 98 LB: 0 @ 21.337
26.58	c Restart #27 #Var: 96 LB: 0 @ 26.557
29.48	c Restart #28 #Var: 95 LB: 0 @ 29.46
33.42	c Restart #29 #Var: 93 LB: 0 @ 33.4
33.46	c Sol. found (all assignments made)...
33.46	o 1
33.46	c NEW SOLUTION FOUND: 1 @ 33.441
40.18	c Sol. found (all assignments made)...
40.18	o 0
40.18	c NEW SOLUTION FOUND: 0 @ 40.153
40.19	s OPTIMUM FOUND
40.19	c Cost: 0
40.19	v -x2 -x3 -x4 -x5 -x6 -x7 -x8 -x9 -x10 -x12 -x13 -x14 -x15 -x16 -x17 -x18 x19 -x20 -x22 -x23 -x24 -x25 x26 -x27 -x28 -x29 -x30 -x32
40.19	v -x33 -x34 -x35 -x36 x37 -x38 -x39 -x40 -x42 -x43 -x44 x45 -x46 -x47 -x48 -x49 -x50 -x52 -x53 -x54 -x55 -x56 -x57 -x58 -x59 x60
40.19	v x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x72 -x73 -x74 -x75 -x76 -x77 x78 -x79 -x80 -x82 x83 -x84 -x85 -x86 -x87 -x88 -x89
40.19	v -x90 -x92 -x93 x94 -x95 -x96 -x97 -x98 -x99 -x100 x1 -x11 -x21 -x31 -x41 -x51 -x61 -x71 -x81 -x91
40.19	c Exit Code: 30
40.19	c Total time: 40.166 s

Verifier Data (download as text)

OK	0

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node26/watcher-39756-1149322400 -o ROOT/results/node26/solver-39756-1149322400 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node26/39756-1149322400/instance-39756-1149322400.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.77 0.93 0.97 2/64 24626
/proc/meminfo: memFree=1504480/2055920 swapFree=4192956/4192956
[pid=24626] ppid=24624 vsize=4928 CPUtime=0
/proc/24626/stat : 24626 (bsolo) R 24624 24626 24580 0 -1 0 358 0 0 0 0 0 0 0 18 0 1 0 15410884 5046272 322 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 12860720 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24626/statm: 1233 330 226 55 0 125 0

[startup+10.0021 s]
/proc/loadavg: 0.81 0.93 0.97 2/64 24626
/proc/meminfo: memFree=1448376/2055920 swapFree=4192956/4192956
[pid=24626] ppid=24624 vsize=60544 CPUtime=9.98
/proc/24626/stat : 24626 (bsolo) R 24624 24626 24580 0 -1 0 14380 0 0 0 988 10 0 0 25 0 1 0 15410884 61997056 14295 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134528729 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24626/statm: 15136 14295 297 55 0 14028 0
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 60544

[startup+20.0081 s]
/proc/loadavg: 0.84 0.93 0.97 2/64 24626
/proc/meminfo: memFree=1421816/2055920 swapFree=4192956/4192956
[pid=24626] ppid=24624 vsize=87084 CPUtime=19.98
/proc/24626/stat : 24626 (bsolo) R 24624 24626 24580 0 -1 0 21003 0 0 0 1982 16 0 0 25 0 1 0 15410884 89174016 20918 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134534809 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24626/statm: 21771 20918 297 55 0 20663 0
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 87084

[startup+30.0141 s]
/proc/loadavg: 0.86 0.94 0.97 2/64 24626
/proc/meminfo: memFree=1403384/2055920 swapFree=4192956/4192956
[pid=24626] ppid=24624 vsize=105436 CPUtime=29.98
/proc/24626/stat : 24626 (bsolo) R 24624 24626 24580 0 -1 0 25604 0 0 0 2977 21 0 0 25 0 1 0 15410884 107966464 25518 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134529176 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24626/statm: 26359 25518 297 55 0 25251 0
Current children cumulated CPU time (s) 29.98
Current children cumulated vsize (Kb) 105436

[startup+40.0201 s]
/proc/loadavg: 0.88 0.94 0.97 2/64 24626
/proc/meminfo: memFree=1392312/2055920 swapFree=4192956/4192956
[pid=24626] ppid=24624 vsize=116536 CPUtime=39.99
/proc/24626/stat : 24626 (bsolo) R 24624 24626 24580 0 -1 0 28374 0 0 0 3975 24 0 0 25 0 1 0 15410884 119332864 28288 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134533905 0 0 4096 16384 0 0 0 17 1 0 0
/proc/24626/statm: 29134 28288 298 55 0 28026 0
Current children cumulated CPU time (s) 39.99
Current children cumulated vsize (Kb) 116536

Child status: 30
Real time (s): 40.2123
CPU time (s): 40.1849
CPU user time (s): 39.9269
CPU system time (s): 0.25796
CPU usage (%): 99.9317
Max. virtual memory (cumulated for all children) (Kb): 116536

Launcher Data (download as text)

Begin job on node26 on Sat Jun  3 08:13:20 UTC 2006


FILE ID= 39756-1149322400

PBS_JOBID= 309413

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-MEDINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-enigma.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node26/39756-1149322400/instance-39756-1149322400.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node26/watcher-39756-1149322400 -o ROOT/results/node26/solver-39756-1149322400 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node26/39756-1149322400/instance-39756-1149322400.opb

MD5SUM SOLVER= 05cada221eb1efaaae980ebc7509e7e8
MD5SUM BENCH=  40c4ca45f28cf4c12979bc2b22100ada

RANDOM SEED= 517294748


/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.247
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.247
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1504688 kB
Buffers:         25300 kB
Cached:         469740 kB
SwapCached:          0 kB
Active:          77588 kB
Inactive:       431960 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1504688 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:             308 kB
Writeback:           0 kB
Mapped:          24912 kB
Slab:            27736 kB
Committed_AS:   238592 kB
PageTables:       1408 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node26 on Sat Jun  3 08:14:00 UTC 2006