Trace number 2656764

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 NameAnswerCPU timeWall clock time
bsolo 3.2 CardSAT 8.87065 8.87256

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111219399.opb
MD5SUM1476879b9f55ab2af66e74aac1d720c1
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.045992
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables169
Total number of constraints101
Number of constraints which are clauses30
Number of constraints which are cardinality constraints (but not clauses)70
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint169
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 38
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 1177
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c bsolo beta version 3.2 - 23/05/2010 : 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 Time Limit set to 1800
0.00/0.00	c Learning Strategy: Cardinality Constraint Learning
0.00/0.00	c Instance file HOME/instance-2656764-1276278506.opb
0.00/0.00	c File size is 9906 bytes.
0.00/0.00	c Highest Coefficient sum: 1177
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: 169 Constr: 101 30/70/1 Lit: 1205 Watch. Lit: 898
0.00/0.00	c Obj. Vars: 0 (0 % of total variables)
0.00/0.00	c Pre-processing Time: 0.006 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0    169       99     1179   11      877    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
8.79/8.87	c      102    169      205     5274   25     1103    2820    106   3290 0.03
8.79/8.87	c      253    169      359    12647   35     1410    3103    260   3614 0.07
8.79/8.87	c      479    169      599    21642   36     1893    3414    500   3574 0.13
8.79/8.87	c      817    169      954    32732   34     2605    3756    855   3461 0.24
8.79/8.87	c     1325    169     1475    48607   32     3647    4132   1376   3239 0.41
8.79/8.87	c     2088    169     2260    79704   35     5220    4546   2161   2743 0.76
8.79/8.87	c     3234    169     3436   113005   32     7574    5001   3337   2424 1.33
8.79/8.87	c     4958    169     2634    80077   30     5998    5502   2535   2062 2.40
8.79/8.87	c     7542    169     5309   194582   36    11398    6053   5210   1850 4.08
8.79/8.87	c    11421    169     3127   132724   42     7003    6659   3028   1562 7.31
8.79/8.87	c Backtracks by Clause: 13510
8.79/8.87	c Backtracks by PB constraint: 8
8.79/8.87	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 -x26 -x27 -x28 -x29 -x30 -x31 -x32 -x33 x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 x42 -x43 -x44 -x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52 x53 -x54 -x55 -x56 -x57 -x58 -x59 -x60 -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 -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 -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 -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 -x161 -x162 -x163 -x164 -x165 x166 -x167 -x168 -x169 
8.79/8.87	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
8.79/8.87	c   10    13518   3996    23504     5297   217557   5198   1524 8.87
8.79/8.87	s SATISFIABLE
8.79/8.87	c Total time: 8.868 s

Verifier Data 

OK	0

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2656764-1276278506/watcher-2656764-1276278506 -o /tmp/evaluation-result-2656764-1276278506/solver-2656764-1276278506 -C 1800 -W 2000 -M 1800 bsolo_pb10 -t1800 -l2 HOME/instance-2656764-1276278506.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: 0.94 0.97 0.97 3/106 4664
/proc/meminfo: memFree=1569572/2059040 swapFree=4192956/4192956
[pid=4664] ppid=4662 vsize=10792 CPUtime=0
/proc/4664/stat : 4664 (bsolo_pb10) R 4662 4664 4503 0 -1 4202496 334 0 0 0 0 0 0 0 20 0 1 0 3452343 11051008 250 1992294400 134512640 137138936 4294080912 18446744073709551615 134578970 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/4664/statm: 2698 250 192 642 0 2054 0

[startup+0.0216111 s]
/proc/loadavg: 0.94 0.97 0.97 3/106 4664
/proc/meminfo: memFree=1569572/2059040 swapFree=4192956/4192956
[pid=4664] ppid=4662 vsize=10792 CPUtime=0.02
/proc/4664/stat : 4664 (bsolo_pb10) R 4662 4664 4503 0 -1 4202496 341 0 0 0 2 0 0 0 20 0 1 0 3452343 11051008 257 1992294400 134512640 137138936 4294080912 18446744073709551615 134604231 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/4664/statm: 2698 257 192 642 0 2054 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 10792

[startup+0.101619 s]
/proc/loadavg: 0.94 0.97 0.97 3/106 4664
/proc/meminfo: memFree=1569572/2059040 swapFree=4192956/4192956
[pid=4664] ppid=4662 vsize=11040 CPUtime=0.1
/proc/4664/stat : 4664 (bsolo_pb10) R 4662 4664 4503 0 -1 4202496 392 0 0 0 10 0 0 0 20 0 1 0 3452343 11304960 308 1992294400 134512640 137138936 4294080912 18446744073709551615 136511090 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/4664/statm: 2760 308 192 642 0 2116 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 11040

[startup+0.301643 s]
/proc/loadavg: 0.94 0.97 0.97 3/106 4664
/proc/meminfo: memFree=1569572/2059040 swapFree=4192956/4192956
[pid=4664] ppid=4662 vsize=11292 CPUtime=0.29
/proc/4664/stat : 4664 (bsolo_pb10) R 4662 4664 4503 0 -1 4202496 479 0 0 0 29 0 0 0 20 0 1 0 3452343 11563008 395 1992294400 134512640 137138936 4294080912 18446744073709551615 136501682 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/4664/statm: 2823 395 192 642 0 2179 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11292

[startup+0.700684 s]
/proc/loadavg: 0.94 0.97 0.97 3/106 4664
/proc/meminfo: memFree=1569572/2059040 swapFree=4192956/4192956
[pid=4664] ppid=4662 vsize=11912 CPUtime=0.69
/proc/4664/stat : 4664 (bsolo_pb10) R 4662 4664 4503 0 -1 4202496 627 0 0 0 69 0 0 0 21 0 1 0 3452343 12197888 543 1992294400 134512640 137138936 4294080912 18446744073709551615 134606655 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/4664/statm: 2978 543 192 642 0 2334 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 11912

[startup+1.50077 s]
/proc/loadavg: 0.94 0.97 0.97 2/107 4665
/proc/meminfo: memFree=1567704/2059040 swapFree=4192956/4192956
[pid=4664] ppid=4662 vsize=12652 CPUtime=1.49
/proc/4664/stat : 4664 (bsolo_pb10) R 4662 4664 4503 0 -1 4202496 820 0 0 0 149 0 0 0 23 0 1 0 3452343 12955648 736 1992294400 134512640 137138936 4294080912 18446744073709551615 134542233 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/4664/statm: 3163 736 192 642 0 2519 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12652

[startup+3.10094 s]
/proc/loadavg: 1.03 0.99 0.97 2/107 4665
/proc/meminfo: memFree=1566464/2059040 swapFree=4192956/4192956
[pid=4664] ppid=4662 vsize=13524 CPUtime=3.09
/proc/4664/stat : 4664 (bsolo_pb10) R 4662 4664 4503 0 -1 4202496 1023 0 0 0 309 0 0 0 25 0 1 0 3452343 13848576 939 1992294400 134512640 137138936 4294080912 18446744073709551615 134600364 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/4664/statm: 3381 939 192 642 0 2737 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13524

[startup+6.30129 s]
/proc/loadavg: 1.03 0.99 0.97 2/107 4665
/proc/meminfo: memFree=1565232/2059040 swapFree=4192956/4192956
[pid=4664] ppid=4662 vsize=14384 CPUtime=6.29
/proc/4664/stat : 4664 (bsolo_pb10) R 4662 4664 4503 0 -1 4202496 1253 0 0 0 627 2 0 0 25 0 1 0 3452343 14729216 1169 1992294400 134512640 137138936 4294080912 18446744073709551615 134542761 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/4664/statm: 3596 1169 192 642 0 2952 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 14384

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

[startup+7.90146 s]
/proc/loadavg: 1.02 0.99 0.97 2/107 4665
/proc/meminfo: memFree=1564860/2059040 swapFree=4192956/4192956
[pid=4664] ppid=4662 vsize=14868 CPUtime=7.89
/proc/4664/stat : 4664 (bsolo_pb10) R 4662 4664 4503 0 -1 4202496 1357 0 0 0 787 2 0 0 25 0 1 0 3452343 15224832 1273 1992294400 134512640 137138936 4294080912 18446744073709551615 134600068 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/4664/statm: 3717 1273 192 642 0 3073 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 14868

[startup+8.3015 s]
/proc/loadavg: 1.02 0.99 0.97 2/107 4665
/proc/meminfo: memFree=1564860/2059040 swapFree=4192956/4192956
[pid=4664] ppid=4662 vsize=14868 CPUtime=8.29
/proc/4664/stat : 4664 (bsolo_pb10) R 4662 4664 4503 0 -1 4202496 1357 0 0 0 827 2 0 0 25 0 1 0 3452343 15224832 1273 1992294400 134512640 137138936 4294080912 18446744073709551615 136504091 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/4664/statm: 3717 1273 192 642 0 3073 0
Current children cumulated CPU time (s) 8.29
Current children cumulated vsize (KiB) 14868

[startup+8.70154 s]
/proc/loadavg: 1.02 0.99 0.97 2/107 4665
/proc/meminfo: memFree=1564860/2059040 swapFree=4192956/4192956
[pid=4664] ppid=4662 vsize=14868 CPUtime=8.69
/proc/4664/stat : 4664 (bsolo_pb10) R 4662 4664 4503 0 -1 4202496 1357 0 0 0 867 2 0 0 25 0 1 0 3452343 15224832 1273 1992294400 134512640 137138936 4294080912 18446744073709551615 136570369 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/4664/statm: 3717 1273 192 642 0 3073 0
Current children cumulated CPU time (s) 8.69
Current children cumulated vsize (KiB) 14868

[startup+8.80856 s]
/proc/loadavg: 1.02 0.99 0.97 2/107 4665
/proc/meminfo: memFree=1564860/2059040 swapFree=4192956/4192956
[pid=4664] ppid=4662 vsize=14868 CPUtime=8.79
/proc/4664/stat : 4664 (bsolo_pb10) R 4662 4664 4503 0 -1 4202496 1357 0 0 0 877 2 0 0 25 0 1 0 3452343 15224832 1273 1992294400 134512640 137138936 4294080912 18446744073709551615 134618214 0 0 4096 16384 0 0 0 17 1 0 0 0
/proc/4664/statm: 3717 1273 192 642 0 3073 0
Current children cumulated CPU time (s) 8.79
Current children cumulated vsize (KiB) 14868

Child status: 0
Real time (s): 8.87256
CPU time (s): 8.87065
CPU user time (s): 8.84066
CPU system time (s): 0.029995
CPU usage (%): 99.9785
Max. virtual memory (cumulated for all children) (KiB): 14868

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.84066
system time used= 0.029995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1358
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= 1
involuntary context switches= 42

runsolver used 0.021996 second user time and 0.047992 second system time

The end

Launcher Data 

Begin job on node009 at 2010-06-11 19:48:26
IDJOB=2656764
IDBENCH=1252
IDSOLVER=1162
FILE ID=node009/2656764-1276278506
PBS_JOBID= 11173102
Free space on /tmp= 62432 MiB

SOLVER NAME= bsolo 3.2 Card
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111219399.opb
COMMAND LINE= bsolo_pb10 -tTIMEOUT -l2 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2656764-1276278506/watcher-2656764-1276278506 -o /tmp/evaluation-result-2656764-1276278506/solver-2656764-1276278506 -C 1800 -W 2000 -M 1800  bsolo_pb10 -t1800 -l2 HOME/instance-2656764-1276278506.opb

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

MD5SUM BENCH= 1476879b9f55ab2af66e74aac1d720c1
RANDOM SEED=580247427

node009.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.199
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.39
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		: 3000.199
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1569976 kB
Buffers:         52164 kB
Cached:         311032 kB
SwapCached:          0 kB
Active:         165044 kB
Inactive:       257220 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1569976 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            4152 kB
Writeback:           0 kB
AnonPages:       59084 kB
Mapped:          15492 kB
Slab:            45060 kB
PageTables:       3960 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181244 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62428 MiB
End job on node009 at 2010-06-11 19:48:35