Trace number 1877992

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 NameAnswerobjCPU timeWall clock time
bsolo 3.1 clOPT3 0.261959 0.262137

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=5-P0=17-P1=13-P2=29-P3=37-P4=23-B.opb
MD5SUM77fa912135e48ed87b17a277e8c5de1d
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3
Best CPU time to get the best result obtained on this benchmark0.197969
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3
Optimality of the best value was proved YES
Number of variables60
Total number of constraints9
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 constraints9
Minimum length of a constraint5
Maximum length of a constraint35
Number of terms in the objective function 5
Biggest coefficient in the objective function 16
Number of bits for the biggest coefficient in the objective function 5
Sum of the numbers in the objective function 31
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 512
Number of bits of the biggest number in a constraint 10
Biggest sum of numbers in a constraint 1984
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)100
Sum of products size (including duplicates)200
Number of different products100
Sum of products size200

Quality of the solution as a function of time


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

Solver Data 

0.00/0.00	c bsolo beta version 3.1 - 13/04/2009 : 1630 GMT
0.00/0.00	c Developed by Vasco Manquinho and José Santos IST/UTL - INESC-ID
0.00/0.00	c type "bsolo -h" for help
0.00/0.00	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.00	c Learning Strategy: Clause Learning
0.00/0.00	c Time Limit set to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file HOME/instance-1877992-1245187397.opb
0.00/0.00	c File size is 7443 bytes.
0.00/0.00	c Highest Coefficient sum: 1984
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.001 s
0.00/0.00	c Var: 160 Constr: 213 100/0/113 Lit: 895 Watch. Lit: 573
0.00/0.00	c Obj. Vars: 5 (3.125 % of total variables)
0.00/0.00	c Pre-processing Time: 0.003 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0    160      213      895    4      765    1223      0      0 0.00
0.00/0.00	c Switching off lower bounding mode.
0.01/0.08	c      101    160      314     3460   11      949    1346    101  12625 0.01
0.01/0.08	c      251    160      464     7950   17     1220    1481    251  16733 0.01
0.01/0.08	c      476    160      689    14322   20     1668    1630    476  16413 0.03
0.01/0.08	c      815    160     1028    23124   22     2375    1794    815  15673 0.05
0.01/0.08	o 7
0.09/0.11	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.09/0.11	c     1260    157     1474    33246   22     3266    1233   1261  14651 0.09
0.09/0.11	c     1360    157      933    17704   18     2174    1357    720  14468 0.09
0.09/0.11	o 3
0.19/0.26	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.26	c     1568    143     1142    22297   19     2616    1229    929  14385 0.11
0.19/0.26	c     1669    128     1243    25015   20     2809    1352   1030  14264 0.12
0.19/0.26	c     1920    128     1494    31728   21     3310    1488   1281  14222 0.14
0.19/0.26	c     2395    127     1173    23921   20     2667    1637    960  13379 0.18
0.19/0.26	v x1 x2 -x3 -x4 -x5 x6 x7 x8 -x9 x10 x11 -x12 x13 x14 -x15 x16 x17 -x18 -x19 -x20 x21 -x22 -x23 x24 x25 x61 x62 -x63 -x64 -x65 x66 x67 -x68 -x69 -x70 x71 x72 -x73 -x74 -x75 -x76 -x77 -x78 -x79 -x80 x81 x82 -x83 -x84 -x85 x26 -x27 x28 -x29 -x30 -x41 x42 -x43 -x44 -x45 x86 -x87 x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 x96 -x97 x98 -x99 -x100 x101 -x102 x103 -x104 -x105 -x106 -x107 -x108 -x109 -x110 x31 -x32 -x33 -x34 -x35 -x46 x47 -x48 -x49 -x50 x111 -x112 -x113 -x114 -x115 x116 -x117 -x118 -x119 -x120 -x121 -x122 -x123 -x124 -x125 -x126 -x127 -x128 -x129 -x130 -x131 -x132 -x133 -x134 -x135 x36 x37 -x38 -x39 -x40 -x51 -x52 -x53 -x54 -x55 x136 x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x150 x151 x152 -x153 -x154 -x155 x156 x157 -x158 -x159 -x160 -x56 x57 -x58 -x59 -x60 
0.19/0.26	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.19/0.26	c   10     3072    165     4047     1850    39448   1637  11861 0.26
0.19/0.26	c Objective: 3
0.19/0.26	s OPTIMUM FOUND
0.19/0.26	c Total time: 0.259 s

Verifier Data 

OK	3

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1877992-1245187397/watcher-1877992-1245187397 -o /tmp/evaluation-result-1877992-1245187397/solver-1877992-1245187397 -C 1800 -W 2000 -M 1800 bsolo -l1 -t1800 -m1800 HOME/instance-1877992-1245187397.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 9118
/proc/meminfo: memFree=1845008/2055920 swapFree=4191900/4192956
[pid=9118] ppid=9116 vsize=10708 CPUtime=0
/proc/9118/stat : 9118 (bsolo) R 9116 9118 8666 0 -1 4194304 269 0 0 0 0 0 0 0 18 0 1 0 186336936 10964992 251 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/9118/statm: 2677 251 196 640 0 2033 0

[startup+0.020638 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 9118
/proc/meminfo: memFree=1845008/2055920 swapFree=4191900/4192956
[pid=9118] ppid=9116 vsize=10836 CPUtime=0.01
/proc/9118/stat : 9118 (bsolo) R 9116 9118 8666 0 -1 4194304 301 0 0 0 1 0 0 0 18 0 1 0 186336936 11096064 283 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/9118/statm: 2709 283 196 640 0 2065 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 10836

[startup+0.101646 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 9118
/proc/meminfo: memFree=1845008/2055920 swapFree=4191900/4192956
[pid=9118] ppid=9116 vsize=11224 CPUtime=0.09
/proc/9118/stat : 9118 (bsolo) R 9116 9118 8666 0 -1 4194304 407 0 0 0 9 0 0 0 18 0 1 0 186336936 11493376 389 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/9118/statm: 2806 389 197 640 0 2162 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11224

Solver just ended. Dumping a history of the last processes samples

[startup+0.201656 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 9118
/proc/meminfo: memFree=1845008/2055920 swapFree=4191900/4192956
[pid=9118] ppid=9116 vsize=11352 CPUtime=0.19
/proc/9118/stat : 9118 (bsolo) R 9116 9118 8666 0 -1 4194304 432 0 0 0 19 0 0 0 18 0 1 0 186336936 11624448 414 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/9118/statm: 2838 414 197 640 0 2194 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 11352

Child status: 0
Real time (s): 0.262137
CPU time (s): 0.261959
CPU user time (s): 0.254961
CPU system time (s): 0.006998
CPU usage (%): 99.9322
Max. virtual memory (cumulated for all children) (KiB): 11352

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.254961
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 440
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 0

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node37 at 2009-06-16 23:23:17
IDJOB=1877992
IDBENCH=47972
IDSOLVER=700
FILE ID=node37/1877992-1245187397
PBS_JOBID= 9363943
Free space on /tmp= 66168 MiB

SOLVER NAME= bsolo 3.1 cl
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=5-P0=17-P1=13-P2=29-P3=37-P4=23-B.opb
COMMAND LINE= bsolo -l1 -tTIMEOUT -mMEMLIMIT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877992-1245187397/watcher-1877992-1245187397 -o /tmp/evaluation-result-1877992-1245187397/solver-1877992-1245187397 -C 1800 -W 2000 -M 1800  bsolo -l1 -t1800 -m1800 HOME/instance-1877992-1245187397.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 77fa912135e48ed87b17a277e8c5de1d
RANDOM SEED=874718641

node37.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.232
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		: 3000.232
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:       1845488 kB
Buffers:         43056 kB
Cached:          90440 kB
SwapCached:        260 kB
Active:          46932 kB
Inactive:        99824 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1845488 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            3948 kB
Writeback:           0 kB
Mapped:          21812 kB
Slab:            49764 kB
Committed_AS:   169760 kB
PageTables:       1384 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

CONVERSION COMMAND LINE= PBconversionToLinear HOME/instance-1877992-1245187397.opb

Free space on /tmp at the end= 66164 MiB
End job on node37 at 2009-06-16 23:23:18