Trace number 1878756

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 3.1 clSAT 7.8568 7.85931

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110975832.opb
MD5SUM1db724dea2682aeae2b8138d40ef319b
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 benchmark0.429934
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 1149
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 3.1 - 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-1878756-1245115900.opb
0.00/0.00	c File size is 9897 bytes.
0.00/0.00	c Highest Coefficient sum: 1149
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.002 s
0.00/0.00	c Var: 169 Constr: 101 30/70/1 Lit: 1205 Watch. Lit: 899
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.
7.79/7.85	c      101    169      200     3799   18     1092    2820    101   7214 0.01
7.79/7.85	c      252    169      351     8613   24     1395    3103    252   9333 0.03
7.79/7.85	c      477    169      576    17647   30     1842    3414    477   9352 0.05
7.79/7.85	c      816    169      915    29634   32     2520    3756    816   8412 0.10
7.79/7.85	c     1327    169     1426    46966   32     3543    4132   1327   7291 0.18
7.79/7.85	c     2091    169     2190    76872   35     5072    4546   2091   6008 0.35
7.79/7.85	c     3237    169     3336   115406   34     7364    5001   3237   4514 0.72
7.79/7.85	c     4959    169     5058   179274   35    10809    5502   4959   3667 1.35
7.79/7.85	c     7544    169     4795   167535   34    10281    6053   4696   3188 2.37
7.79/7.85	c    11423    169     5559   208206   37    11809    6659   5460   2701 4.23
7.79/7.85	c    17245    169     4563   179403   39     9817    7325   4464   2290 7.53
7.79/7.85	c Backtracks by Clause: 0
7.79/7.85	c Backtracks by PB constraint: 0
7.79/7.85	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 
7.79/7.85	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
7.79/7.85	c   11    17743   4924    28641     5061   200454   4962   2259 7.85
7.79/7.85	s SATISFIABLE
7.79/7.85	c Total time: 7.854 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-1878756-1245115900/watcher-1878756-1245115900 -o /tmp/evaluation-result-1878756-1245115900/solver-1878756-1245115900 -C 1800 -W 2000 -M 1800 bsolo -l1 -t1800 -m1800 HOME/instance-1878756-1245115900.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: 0.95 0.96 1.03 3/65 32520
/proc/meminfo: memFree=890824/2055920 swapFree=4192812/4192956
[pid=32520] ppid=32518 vsize=10708 CPUtime=0
/proc/32520/stat : 32520 (bsolo) R 32518 32520 32018 0 -1 4194304 258 0 0 0 0 0 0 0 20 0 1 0 168116492 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 134564766 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32520/statm: 2677 239 188 640 0 2033 0

[startup+0.0531359 s]
/proc/loadavg: 0.95 0.96 1.03 3/65 32520
/proc/meminfo: memFree=890824/2055920 swapFree=4192812/4192956
[pid=32520] ppid=32518 vsize=10960 CPUtime=0.05
/proc/32520/stat : 32520 (bsolo) R 32518 32520 32018 0 -1 4194304 333 0 0 0 5 0 0 0 20 0 1 0 168116492 11223040 314 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32520/statm: 2740 314 195 640 0 2096 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 10960

[startup+0.101141 s]
/proc/loadavg: 0.95 0.96 1.03 3/65 32520
/proc/meminfo: memFree=890824/2055920 swapFree=4192812/4192956
[pid=32520] ppid=32518 vsize=11084 CPUtime=0.1
/proc/32520/stat : 32520 (bsolo) R 32518 32520 32018 0 -1 4194304 382 0 0 0 10 0 0 0 20 0 1 0 168116492 11350016 363 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32520/statm: 2771 363 195 640 0 2127 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 11084

[startup+0.30116 s]
/proc/loadavg: 0.95 0.96 1.03 3/65 32520
/proc/meminfo: memFree=890824/2055920 swapFree=4192812/4192956
[pid=32520] ppid=32518 vsize=11724 CPUtime=0.29
/proc/32520/stat : 32520 (bsolo) R 32518 32520 32018 0 -1 4194304 537 0 0 0 29 0 0 0 22 0 1 0 168116492 12005376 518 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32520/statm: 2931 518 195 640 0 2287 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11724

[startup+0.701196 s]
/proc/loadavg: 0.95 0.96 1.03 3/65 32520
/proc/meminfo: memFree=890824/2055920 swapFree=4192812/4192956
[pid=32520] ppid=32518 vsize=12492 CPUtime=0.69
/proc/32520/stat : 32520 (bsolo) R 32518 32520 32018 0 -1 4194304 717 0 0 0 69 0 0 0 25 0 1 0 168116492 12791808 698 1992294400 134512640 137136520 4294956256 18446744073709551615 134544393 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32520/statm: 3123 698 195 640 0 2479 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12492

[startup+1.50127 s]
/proc/loadavg: 1.04 0.98 1.04 2/66 32521
/proc/meminfo: memFree=888192/2055920 swapFree=4192812/4192956
[pid=32520] ppid=32518 vsize=13636 CPUtime=1.49
/proc/32520/stat : 32520 (bsolo) R 32518 32520 32018 0 -1 4194304 1008 0 0 0 148 1 0 0 25 0 1 0 168116492 13963264 989 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32520/statm: 3409 989 195 640 0 2765 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 13636

[startup+3.10142 s]
/proc/loadavg: 1.04 0.98 1.04 2/66 32521
/proc/meminfo: memFree=887104/2055920 swapFree=4192812/4192956
[pid=32520] ppid=32518 vsize=14148 CPUtime=3.09
/proc/32520/stat : 32520 (bsolo) R 32518 32520 32018 0 -1 4194304 1125 0 0 0 308 1 0 0 25 0 1 0 168116492 14487552 1106 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32520/statm: 3537 1106 195 640 0 2893 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 14148

[startup+6.30172 s]
/proc/loadavg: 1.03 0.98 1.04 2/66 32521
/proc/meminfo: memFree=886144/2055920 swapFree=4192812/4192956
[pid=32520] ppid=32518 vsize=14900 CPUtime=6.29
/proc/32520/stat : 32520 (bsolo) R 32518 32520 32018 0 -1 4194304 1315 0 0 0 627 2 0 0 25 0 1 0 168116492 15257600 1296 1992294400 134512640 137136520 4294956256 18446744073709551615 134543865 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32520/statm: 3725 1296 195 640 0 3081 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 14900

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

[startup+7.1018 s]
/proc/loadavg: 1.03 0.98 1.04 2/66 32521
/proc/meminfo: memFree=886144/2055920 swapFree=4192812/4192956
[pid=32520] ppid=32518 vsize=15028 CPUtime=7.09
/proc/32520/stat : 32520 (bsolo) R 32518 32520 32018 0 -1 4194304 1352 0 0 0 707 2 0 0 25 0 1 0 168116492 15388672 1333 1992294400 134512640 137136520 4294956256 18446744073709551615 134543942 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32520/statm: 3757 1333 195 640 0 3113 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 15028

[startup+7.50184 s]
/proc/loadavg: 1.03 0.98 1.04 2/66 32521
/proc/meminfo: memFree=886144/2055920 swapFree=4192812/4192956
[pid=32520] ppid=32518 vsize=15028 CPUtime=7.49
/proc/32520/stat : 32520 (bsolo) R 32518 32520 32018 0 -1 4194304 1352 0 0 0 747 2 0 0 25 0 1 0 168116492 15388672 1333 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32520/statm: 3757 1333 195 640 0 3113 0
Current children cumulated CPU time (s) 7.49
Current children cumulated vsize (KiB) 15028

[startup+7.70585 s]
/proc/loadavg: 1.03 0.98 1.04 2/66 32521
/proc/meminfo: memFree=886016/2055920 swapFree=4192812/4192956
[pid=32520] ppid=32518 vsize=15028 CPUtime=7.69
/proc/32520/stat : 32520 (bsolo) R 32518 32520 32018 0 -1 4194304 1352 0 0 0 767 2 0 0 25 0 1 0 168116492 15388672 1333 1992294400 134512640 137136520 4294956256 18446744073709551615 134543806 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32520/statm: 3757 1333 195 640 0 3113 0
Current children cumulated CPU time (s) 7.69
Current children cumulated vsize (KiB) 15028

[startup+7.80186 s]
/proc/loadavg: 1.03 0.98 1.04 2/66 32521
/proc/meminfo: memFree=886016/2055920 swapFree=4192812/4192956
[pid=32520] ppid=32518 vsize=15028 CPUtime=7.79
/proc/32520/stat : 32520 (bsolo) R 32518 32520 32018 0 -1 4194304 1352 0 0 0 777 2 0 0 25 0 1 0 168116492 15388672 1333 1992294400 134512640 137136520 4294956256 18446744073709551615 134544475 0 0 4096 16384 0 0 0 17 1 0 0
/proc/32520/statm: 3757 1333 195 640 0 3113 0
Current children cumulated CPU time (s) 7.79
Current children cumulated vsize (KiB) 15028

Child status: 0
Real time (s): 7.85931
CPU time (s): 7.8568
CPU user time (s): 7.82781
CPU system time (s): 0.028995
CPU usage (%): 99.9681
Max. virtual memory (cumulated for all children) (KiB): 15028

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.82781
system time used= 0.028995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1355
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= 21

runsolver used 0.015997 second user time and 0.021996 second system time

The end

Launcher Data 

Begin job on node8 at 2009-06-16 03:31:40
IDJOB=1878756
IDBENCH=1255
IDSOLVER=700
FILE ID=node8/1878756-1245115900
PBS_JOBID= 9363662
Free space on /tmp= 66316 MiB

SOLVER NAME= bsolo 3.1 cl
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110975832.opb
COMMAND LINE= bsolo -l1 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1878756-1245115900/watcher-1878756-1245115900 -o /tmp/evaluation-result-1878756-1245115900/solver-1878756-1245115900 -C 1800 -W 2000 -M 1800  bsolo -l1 -t1800 -m1800 HOME/instance-1878756-1245115900.opb

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

MD5SUM BENCH= 1db724dea2682aeae2b8138d40ef319b
RANDOM SEED=1105839069

node8.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		: 3000.234
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		: 3000.234
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:        891240 kB
Buffers:         89316 kB
Cached:         965360 kB
SwapCached:        140 kB
Active:         149308 kB
Inactive:       920296 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        891240 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4068 kB
Writeback:           0 kB
Mapped:          24592 kB
Slab:            80880 kB
Committed_AS:   156440 kB
PageTables:       1376 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66312 MiB
End job on node8 at 2009-06-16 03:31:48