Trace number 1880115

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 pbSAT 0.761883 0.762881

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110972958.opb
MD5SUM78c7dd053a309e76acc4f92715af72ca
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 benchmark0.761883
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 1168
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: Generic Pseudo-Boolean 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-1880115-1245115439.opb
0.00/0.00	c File size is 9900 bytes.
0.00/0.00	c Highest Coefficient sum: 1168
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0 s
0.00/0.00	c Var: 169 Constr: 101 30/70/1 Lit: 1205 Watch. Lit: 897
0.00/0.00	c Obj. Vars: 0 (0 % of total variables)
0.00/0.00	c Pre-processing Time: 0.005 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      880    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
0.69/0.76	c      101    169      301    21244   70    11863    2820    202   1603 0.06
0.69/0.76	c      252    169      603    49676   82    26962    3103    504   1253 0.20
0.69/0.76	c      478    169     1028    88009   85    45978    3414    929    849 0.56
0.69/0.76	c Backtracks by Clause: 455
0.69/0.76	c Backtracks by PB constraint: 91
0.69/0.76	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 
0.69/0.76	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.69/0.76	c    3      580    144     1141     1220   106481   1121    764 0.76
0.69/0.76	s SATISFIABLE
0.69/0.76	c Total time: 0.759 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-1880115-1245115439/watcher-1880115-1245115439 -o /tmp/evaluation-result-1880115-1245115439/solver-1880115-1245115439 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880115-1245115439.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 0.97 1.06 3/64 1488
/proc/meminfo: memFree=1687920/2055920 swapFree=4192812/4192956
[pid=1488] ppid=1486 vsize=10708 CPUtime=0
/proc/1488/stat : 1488 (bsolo) R 1486 1488 1126 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179144862 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1488/statm: 2677 239 188 640 0 2033 0

[startup+0.029025 s]
/proc/loadavg: 0.95 0.97 1.06 3/64 1488
/proc/meminfo: memFree=1687920/2055920 swapFree=4192812/4192956
[pid=1488] ppid=1486 vsize=10968 CPUtime=0.02
/proc/1488/stat : 1488 (bsolo) R 1486 1488 1126 0 -1 4194304 329 0 0 0 2 0 0 0 18 0 1 0 179144862 11231232 310 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1488/statm: 2742 310 196 640 0 2098 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 10968

[startup+0.102031 s]
/proc/loadavg: 0.95 0.97 1.06 3/64 1488
/proc/meminfo: memFree=1687920/2055920 swapFree=4192812/4192956
[pid=1488] ppid=1486 vsize=11484 CPUtime=0.09
/proc/1488/stat : 1488 (bsolo) R 1486 1488 1126 0 -1 4194304 465 0 0 0 9 0 0 0 18 0 1 0 179144862 11759616 446 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1488/statm: 2871 446 196 640 0 2227 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11484

[startup+0.302049 s]
/proc/loadavg: 0.95 0.97 1.06 3/64 1488
/proc/meminfo: memFree=1687920/2055920 swapFree=4192812/4192956
[pid=1488] ppid=1486 vsize=12264 CPUtime=0.29
/proc/1488/stat : 1488 (bsolo) R 1486 1488 1126 0 -1 4194304 667 0 0 0 29 0 0 0 19 0 1 0 179144862 12558336 648 1992294400 134512640 137136520 4294956256 18446744073709551615 134544437 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1488/statm: 3066 648 197 640 0 2422 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12264

[startup+0.701086 s]
/proc/loadavg: 0.95 0.97 1.06 3/64 1488
/proc/meminfo: memFree=1687920/2055920 swapFree=4192812/4192956
[pid=1488] ppid=1486 vsize=13176 CPUtime=0.69
/proc/1488/stat : 1488 (bsolo) R 1486 1488 1126 0 -1 4194304 898 0 0 0 69 0 0 0 22 0 1 0 179144862 13492224 879 1992294400 134512640 137136520 4294956256 18446744073709551615 134544160 0 0 4096 16384 0 0 0 17 1 0 0
/proc/1488/statm: 3294 879 197 640 0 2650 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13176

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

Child status: 0
Real time (s): 0.762881
CPU time (s): 0.761883
CPU user time (s): 0.758884
CPU system time (s): 0.002999
CPU usage (%): 99.8692
Max. virtual memory (cumulated for all children) (KiB): 13176

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.758884
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 937
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= 2

runsolver used 0.004999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node14 at 2009-06-16 03:23:59
IDJOB=1880115
IDBENCH=1184
IDSOLVER=701
FILE ID=node14/1880115-1245115439
PBS_JOBID= 9363651
Free space on /tmp= 66376 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110972958.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880115-1245115439/watcher-1880115-1245115439 -o /tmp/evaluation-result-1880115-1245115439/solver-1880115-1245115439 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880115-1245115439.opb

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

MD5SUM BENCH= 78c7dd053a309e76acc4f92715af72ca
RANDOM SEED=960394958

node14.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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1688336 kB
Buffers:         23628 kB
Cached:         270064 kB
SwapCached:          0 kB
Active:          54244 kB
Inactive:       253416 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1688336 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4120 kB
Writeback:           0 kB
Mapped:          23720 kB
Slab:            45880 kB
Committed_AS:   160796 kB
PageTables:       1452 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66372 MiB
End job on node14 at 2009-06-16 03:24:00