Trace number 1877900

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 0.220966 0.220567

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=5-P0=17-P1=7-P2=11-P3=17-P4=11-B.opb
MD5SUM2169b5e6c2e004be1035c00af298ec4e
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 benchmark0.164973
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

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-1877900-1245185754.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 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: 0.002 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.
0.01/0.07	c      101    160      314     3347   10      943    1346    101  14428 0.01
0.01/0.07	c      252    160      465     7110   15     1219    1481    252  18000 0.01
0.01/0.07	c      478    160      691    13258   19     1669    1630    478  17071 0.03
0.01/0.07	c      816    160     1029    21026   20     2356    1794    816  16000 0.05
0.01/0.07	o 3
0.19/0.22	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.22	c     1120    159     1334    28353   21     2977    1233   1121  15555 0.07
0.19/0.22	c     1221    147     1435    31069   21     3180    1357   1222  15262 0.08
0.19/0.22	c     1471    130      958    19118   19     2230    1493    745  14710 0.10
0.19/0.22	c     1946    130     1433    30525   21     3189    1643   1220  14414 0.14
0.19/0.22	c     2760    114     1378    25567   18     3077    1808   1165  12837 0.21
0.19/0.22	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 
0.19/0.22	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.19/0.22	c    9     2791     94     3305     1409    25894   1196  12802 0.22
0.19/0.22	c Objective: 3
0.19/0.22	s OPTIMUM FOUND
0.19/0.22	c Total time: 0.218 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-1877900-1245185754/watcher-1877900-1245185754 -o /tmp/evaluation-result-1877900-1245185754/solver-1877900-1245185754 -C 1800 -W 2000 -M 1800 bsolo -l1 -t1800 -m1800 HOME/instance-1877900-1245185754.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: 1.11 1.04 1.00 3/64 1328
/proc/meminfo: memFree=1843536/2055920 swapFree=4191896/4192956
[pid=1328] ppid=1326 vsize=10708 CPUtime=0
/proc/1328/stat : 1328 (bsolo) R 1326 1328 644 0 -1 4194304 269 0 0 0 0 0 0 0 18 0 1 0 186176424 10964992 251 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 0 0 0
/proc/1328/statm: 2677 251 196 640 0 2033 0

[startup+0.021695 s]
/proc/loadavg: 1.11 1.04 1.00 3/64 1328
/proc/meminfo: memFree=1843536/2055920 swapFree=4191896/4192956
[pid=1328] ppid=1326 vsize=10836 CPUtime=0.01
/proc/1328/stat : 1328 (bsolo) R 1326 1328 644 0 -1 4194304 303 0 0 0 1 0 0 0 18 0 1 0 186176424 11096064 285 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 0 0 0
/proc/1328/statm: 2709 285 196 640 0 2065 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 10836

[startup+0.101703 s]
/proc/loadavg: 1.11 1.04 1.00 3/64 1328
/proc/meminfo: memFree=1843536/2055920 swapFree=4191896/4192956
[pid=1328] ppid=1326 vsize=11228 CPUtime=0.09
/proc/1328/stat : 1328 (bsolo) R 1326 1328 644 0 -1 4194304 419 0 0 0 9 0 0 0 18 0 1 0 186176424 11497472 401 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 0 0 0
/proc/1328/statm: 2807 401 197 640 0 2163 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11228

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

[startup+0.201712 s]
/proc/loadavg: 1.11 1.04 1.00 3/64 1328
/proc/meminfo: memFree=1843536/2055920 swapFree=4191896/4192956
[pid=1328] ppid=1326 vsize=11356 CPUtime=0.19
/proc/1328/stat : 1328 (bsolo) R 1326 1328 644 0 -1 4194304 443 0 0 0 19 0 0 0 18 0 1 0 186176424 11628544 425 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 0 0 0
/proc/1328/statm: 2839 425 197 640 0 2195 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 11356

Child status: 0
Real time (s): 0.220567
CPU time (s): 0.220966
CPU user time (s): 0.216967
CPU system time (s): 0.003999
CPU usage (%): 100.181
Max. virtual memory (cumulated for all children) (KiB): 11356

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.216967
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 445
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= 1

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node2 at 2009-06-16 22:55:54
IDJOB=1877900
IDBENCH=47880
IDSOLVER=700
FILE ID=node2/1877900-1245185754
PBS_JOBID= 9363895
Free space on /tmp= 66452 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=7-P2=11-P3=17-P4=11-B.opb
COMMAND LINE= bsolo -l1 -tTIMEOUT -mMEMLIMIT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877900-1245185754/watcher-1877900-1245185754 -o /tmp/evaluation-result-1877900-1245185754/solver-1877900-1245185754 -C 1800 -W 2000 -M 1800  bsolo -l1 -t1800 -m1800 HOME/instance-1877900-1245185754.opb

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

MD5SUM BENCH= 2169b5e6c2e004be1035c00af298ec4e
RANDOM SEED=1469441485

node2.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		: 3000.214
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		: 3000.214
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:       1844080 kB
Buffers:         45536 kB
Cached:          95236 kB
SwapCached:        260 kB
Active:          46140 kB
Inactive:       107848 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1844080 kB
SwapTotal:     4192956 kB
SwapFree:      4191896 kB
Dirty:            3944 kB
Writeback:           0 kB
Mapped:          21784 kB
Slab:            43808 kB
Committed_AS:   159624 kB
PageTables:       1468 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-1877900-1245185754.opb

Free space on /tmp at the end= 66448 MiB
End job on node2 at 2009-06-16 22:55:54