Trace number 1877320

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 3.1SAT 10.3414 10.3453

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110968431.opb
MD5SUM98db89f78e476e0f7a53e6cbb97938b8
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 benchmark0.181972
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 1276
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: Cardinality Constraint 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-1877320-1245115881.opb
0.00/0.00	c File size is 9908 bytes.
0.00/0.00	c Highest Coefficient sum: 1276
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: 902
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      878    2563      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
10.29/10.34	c      100    169      204     4696   23     1100    2820    105   4166 0.02
10.29/10.34	c      251    169      360    11483   31     1413    3103    261   4254 0.06
10.29/10.34	c      478    169      593    20952   35     1878    3414    494   4016 0.12
10.29/10.34	c      819    169      945    29657   31     2586    3756    846   4034 0.20
10.29/10.34	c     1327    169     1461    43385   29     3618    4132   1362   3738 0.35
10.29/10.34	c     2091    169     2240    68406   30     5176    4546   2141   3287 0.64
10.29/10.34	c     3237    169     3414   104956   30     7525    5001   3315   2846 1.14
10.29/10.34	c     4959    169     2637    77498   29     5970    5502   2538   2415 2.05
10.29/10.34	c     7543    169     5300   166000   31    11301    6053   5201   2176 3.46
10.29/10.34	c    11423    169     3127    95557   30     6960    6659   3028   1980 5.77
10.29/10.34	c    17247    169     5719   218222   38    12168    7325   5620   1877 9.19
10.29/10.34	c Backtracks by Clause: 18672
10.29/10.34	c Backtracks by PB constraint: 4
10.29/10.34	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 
10.29/10.34	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
10.29/10.34	c   11    18676   5487    31560     7172   260332   7073   1806 10.34
10.29/10.34	s SATISFIABLE
10.29/10.34	c Total time: 10.339 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-1877320-1245115881/watcher-1877320-1245115881 -o /tmp/evaluation-result-1877320-1245115881/solver-1877320-1245115881 -C 1800 -W 2000 -M 1800 bsolo -l2 -t1800 -m1800 HOME/instance-1877320-1245115881.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: 0.92 0.98 1.07 3/64 5183
/proc/meminfo: memFree=1214328/2055920 swapFree=4180792/4192956
[pid=5183] ppid=5181 vsize=10708 CPUtime=0
/proc/5183/stat : 5183 (bsolo) R 5181 5183 5092 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179188008 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/5183/statm: 2677 239 188 640 0 2033 0

[startup+0.0168869 s]
/proc/loadavg: 0.92 0.98 1.07 3/64 5183
/proc/meminfo: memFree=1214328/2055920 swapFree=4180792/4192956
[pid=5183] ppid=5181 vsize=10708 CPUtime=0.01
/proc/5183/stat : 5183 (bsolo) R 5181 5183 5092 0 -1 4194304 275 0 0 0 1 0 0 0 18 0 1 0 179188008 10964992 256 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/5183/statm: 2677 256 196 640 0 2033 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 10708

[startup+0.101901 s]
/proc/loadavg: 0.92 0.98 1.07 3/64 5183
/proc/meminfo: memFree=1214328/2055920 swapFree=4180792/4192956
[pid=5183] ppid=5181 vsize=10948 CPUtime=0.1
/proc/5183/stat : 5183 (bsolo) R 5181 5183 5092 0 -1 4194304 335 0 0 0 10 0 0 0 18 0 1 0 179188008 11210752 316 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/5183/statm: 2737 316 196 640 0 2093 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 10948

[startup+0.301934 s]
/proc/loadavg: 0.92 0.98 1.07 3/64 5183
/proc/meminfo: memFree=1214328/2055920 swapFree=4180792/4192956
[pid=5183] ppid=5181 vsize=11320 CPUtime=0.29
/proc/5183/stat : 5183 (bsolo) R 5181 5183 5092 0 -1 4194304 421 0 0 0 29 0 0 0 19 0 1 0 179188008 11591680 402 1992294400 134512640 137136520 4294956256 18446744073709551615 134600728 0 0 4096 16384 0 0 0 17 1 0 0
/proc/5183/statm: 2830 402 196 640 0 2186 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 11320

[startup+0.702 s]
/proc/loadavg: 0.92 0.98 1.07 3/64 5183
/proc/meminfo: memFree=1214328/2055920 swapFree=4180792/4192956
[pid=5183] ppid=5181 vsize=11816 CPUtime=0.69
/proc/5183/stat : 5183 (bsolo) R 5181 5183 5092 0 -1 4194304 564 0 0 0 69 0 0 0 22 0 1 0 179188008 12099584 545 1992294400 134512640 137136520 4294956256 18446744073709551615 134544140 0 0 4096 16384 0 0 0 17 1 0 0
/proc/5183/statm: 2954 545 196 640 0 2310 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 11816

[startup+1.50113 s]
/proc/loadavg: 0.92 0.98 1.07 2/65 5184
/proc/meminfo: memFree=1212592/2055920 swapFree=4180792/4192956
[pid=5183] ppid=5181 vsize=12804 CPUtime=1.49
/proc/5183/stat : 5183 (bsolo) R 5181 5183 5092 0 -1 4194304 796 0 0 0 149 0 0 0 25 0 1 0 179188008 13111296 777 1992294400 134512640 137136520 4294956256 18446744073709551615 136575102 0 0 4096 16384 0 0 0 17 1 0 0
/proc/5183/statm: 3201 777 196 640 0 2557 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12804

[startup+3.1014 s]
/proc/loadavg: 0.92 0.98 1.07 2/65 5184
/proc/meminfo: memFree=1211440/2055920 swapFree=4180792/4192956
[pid=5183] ppid=5181 vsize=13300 CPUtime=3.09
/proc/5183/stat : 5183 (bsolo) R 5181 5183 5092 0 -1 4194304 917 0 0 0 308 1 0 0 25 0 1 0 179188008 13619200 898 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/5183/statm: 3325 898 196 640 0 2681 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13300

[startup+6.30193 s]
/proc/loadavg: 0.93 0.98 1.07 2/65 5184
/proc/meminfo: memFree=1210680/2055920 swapFree=4180792/4192956
[pid=5183] ppid=5181 vsize=13792 CPUtime=6.29
/proc/5183/stat : 5183 (bsolo) R 5181 5183 5092 0 -1 4194304 1065 0 0 0 627 2 0 0 25 0 1 0 179188008 14123008 1046 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/5183/statm: 3448 1046 196 640 0 2804 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 13792

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

[startup+7.9012 s]
/proc/loadavg: 0.93 0.98 1.07 2/65 5184
/proc/meminfo: memFree=1210616/2055920 swapFree=4180792/4192956
[pid=5183] ppid=5181 vsize=14156 CPUtime=7.89
/proc/5183/stat : 5183 (bsolo) R 5181 5183 5092 0 -1 4194304 1152 0 0 0 786 3 0 0 25 0 1 0 179188008 14495744 1133 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/5183/statm: 3539 1133 196 640 0 2895 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 14156

[startup+9.50146 s]
/proc/loadavg: 0.93 0.98 1.07 2/65 5184
/proc/meminfo: memFree=1210232/2055920 swapFree=4180792/4192956
[pid=5183] ppid=5181 vsize=14280 CPUtime=9.49
/proc/5183/stat : 5183 (bsolo) R 5181 5183 5092 0 -1 4194304 1174 0 0 0 946 3 0 0 25 0 1 0 179188008 14622720 1155 1992294400 134512640 137136520 4294956256 18446744073709551615 134544112 0 0 4096 16384 0 0 0 17 1 0 0
/proc/5183/statm: 3570 1155 196 640 0 2926 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 14280

[startup+9.90553 s]
/proc/loadavg: 0.93 0.98 1.07 2/65 5184
/proc/meminfo: memFree=1210040/2055920 swapFree=4180792/4192956
[pid=5183] ppid=5181 vsize=14528 CPUtime=9.89
/proc/5183/stat : 5183 (bsolo) R 5181 5183 5092 0 -1 4194304 1232 0 0 0 986 3 0 0 25 0 1 0 179188008 14876672 1213 1992294400 134512640 137136520 4294956256 18446744073709551615 136295556 0 0 4096 16384 0 0 0 17 1 0 0
/proc/5183/statm: 3632 1213 196 640 0 2988 0
Current children cumulated CPU time (s) 9.89
Current children cumulated vsize (KiB) 14528

[startup+10.3016 s]
/proc/loadavg: 0.93 0.98 1.07 2/65 5184
/proc/meminfo: memFree=1210040/2055920 swapFree=4180792/4192956
[pid=5183] ppid=5181 vsize=14776 CPUtime=10.29
/proc/5183/stat : 5183 (bsolo) R 5181 5183 5092 0 -1 4194304 1291 0 0 0 1026 3 0 0 25 0 1 0 179188008 15130624 1272 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/5183/statm: 3694 1272 196 640 0 3050 0
Current children cumulated CPU time (s) 10.29
Current children cumulated vsize (KiB) 14776

Child status: 0
Real time (s): 10.3453
CPU time (s): 10.3414
CPU user time (s): 10.3044
CPU system time (s): 0.036994
CPU usage (%): 99.9625
Max. virtual memory (cumulated for all children) (KiB): 14776

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.3044
system time used= 0.036994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1303
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= 6

runsolver used 0.012998 second user time and 0.027995 second system time

The end

Launcher Data 

Begin job on node31 at 2009-06-16 03:31:21
IDJOB=1877320
IDBENCH=1249
IDSOLVER=699
FILE ID=node31/1877320-1245115881
PBS_JOBID= 9363674
Free space on /tmp= 66272 MiB

SOLVER NAME= bsolo 3.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110968431.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877320-1245115881/watcher-1877320-1245115881 -o /tmp/evaluation-result-1877320-1245115881/solver-1877320-1245115881 -C 1800 -W 2000 -M 1800  bsolo -l2 -t1800 -m1800 HOME/instance-1877320-1245115881.opb

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

MD5SUM BENCH= 98db89f78e476e0f7a53e6cbb97938b8
RANDOM SEED=458570743

node31.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		: 3000.258
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		: 3000.258
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:       1214808 kB
Buffers:         80488 kB
Cached:         673884 kB
SwapCached:       5188 kB
Active:         123876 kB
Inactive:       638544 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1214808 kB
SwapTotal:     4192956 kB
SwapFree:      4180792 kB
Dirty:            3952 kB
Writeback:           0 kB
Mapped:          13748 kB
Slab:            64368 kB
Committed_AS:   149224 kB
PageTables:       1468 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= 66268 MiB
End job on node31 at 2009-06-16 03:31:31