Trace number 1880122

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 2.18867 2.19008

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111216864.opb
MD5SUM01a11c78606c6281a399e7d01c40beb6
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 benchmark1.3418
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 1228
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-1880122-1245115522.opb
0.00/0.00	c File size is 9905 bytes.
0.00/0.00	c Highest Coefficient sum: 1228
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: 900
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.
2.09/2.18	c      100    169      299    20751   69    12774    2820    200   1666 0.06
2.09/2.18	c      250    169      597    48769   81    27778    3103    498   1322 0.19
2.09/2.18	c      475    169     1037    91031   87    49017    3414    938    904 0.53
2.09/2.18	c      814    169     1694   152935   90    76373    3756   1595    643 1.26
2.09/2.18	c Backtracks by Clause: 963
2.09/2.18	c Backtracks by PB constraint: 134
2.09/2.18	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 
2.09/2.18	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
2.09/2.18	c    4     1138    265     1918     2326   215689   2227    520 2.19
2.09/2.18	s SATISFIABLE
2.09/2.18	c Total time: 2.186 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-1880122-1245115522/watcher-1880122-1245115522 -o /tmp/evaluation-result-1880122-1245115522/solver-1880122-1245115522 -C 1800 -W 2000 -M 1800 bsolo -l3 -t1800 -m1800 HOME/instance-1880122-1245115522.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: 1.00 1.00 1.08 3/64 29929
/proc/meminfo: memFree=1395104/2055920 swapFree=4191896/4192956
[pid=29929] ppid=29927 vsize=10708 CPUtime=0
/proc/29929/stat : 29929 (bsolo) R 29927 29929 29805 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 179153203 10964992 239 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29929/statm: 2677 239 188 640 0 2033 0

[startup+0.0136209 s]
/proc/loadavg: 1.00 1.00 1.08 3/64 29929
/proc/meminfo: memFree=1395104/2055920 swapFree=4191896/4192956
[pid=29929] ppid=29927 vsize=10840 CPUtime=0
/proc/29929/stat : 29929 (bsolo) R 29927 29929 29805 0 -1 4194304 296 0 0 0 0 0 0 0 18 0 1 0 179153203 11100160 277 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29929/statm: 2710 277 196 640 0 2066 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 10840

[startup+0.10263 s]
/proc/loadavg: 1.00 1.00 1.08 3/64 29929
/proc/meminfo: memFree=1395104/2055920 swapFree=4191896/4192956
[pid=29929] ppid=29927 vsize=11488 CPUtime=0.09
/proc/29929/stat : 29929 (bsolo) R 29927 29929 29805 0 -1 4194304 474 0 0 0 9 0 0 0 18 0 1 0 179153203 11763712 455 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29929/statm: 2872 455 196 640 0 2228 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11488

[startup+0.30165 s]
/proc/loadavg: 1.00 1.00 1.08 3/64 29929
/proc/meminfo: memFree=1395104/2055920 swapFree=4191896/4192956
[pid=29929] ppid=29927 vsize=12392 CPUtime=0.29
/proc/29929/stat : 29929 (bsolo) R 29927 29929 29805 0 -1 4194304 690 0 0 0 29 0 0 0 19 0 1 0 179153203 12689408 671 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29929/statm: 3098 671 197 640 0 2454 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12392

[startup+0.702691 s]
/proc/loadavg: 1.00 1.00 1.08 3/64 29929
/proc/meminfo: memFree=1395104/2055920 swapFree=4191896/4192956
[pid=29929] ppid=29927 vsize=13428 CPUtime=0.69
/proc/29929/stat : 29929 (bsolo) R 29927 29929 29805 0 -1 4194304 957 0 0 0 69 0 0 0 22 0 1 0 179153203 13750272 938 1992294400 134512640 137136520 4294956256 18446744073709551615 134543942 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29929/statm: 3357 938 197 640 0 2713 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13428

[startup+1.50181 s]
/proc/loadavg: 1.00 1.00 1.08 2/65 29930
/proc/meminfo: memFree=1391512/2055920 swapFree=4191896/4192956
[pid=29929] ppid=29927 vsize=14864 CPUtime=1.49
/proc/29929/stat : 29929 (bsolo) R 29927 29929 29805 0 -1 4194304 1328 0 0 0 149 0 0 0 25 0 1 0 179153203 15220736 1309 1992294400 134512640 137136520 4294956256 18446744073709551615 134543865 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29929/statm: 3716 1309 197 640 0 3072 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14864

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

[startup+1.90185 s]
/proc/loadavg: 1.00 1.00 1.08 2/65 29930
/proc/meminfo: memFree=1391512/2055920 swapFree=4191896/4192956
[pid=29929] ppid=29927 vsize=15524 CPUtime=1.89
/proc/29929/stat : 29929 (bsolo) R 29927 29929 29805 0 -1 4194304 1481 0 0 0 189 0 0 0 25 0 1 0 179153203 15896576 1462 1992294400 134512640 137136520 4294956256 18446744073709551615 134543933 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29929/statm: 3881 1462 197 640 0 3237 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 15524

[startup+2.10187 s]
/proc/loadavg: 1.00 1.00 1.08 2/65 29930
/proc/meminfo: memFree=1389592/2055920 swapFree=4191896/4192956
[pid=29929] ppid=29927 vsize=15784 CPUtime=2.09
/proc/29929/stat : 29929 (bsolo) R 29927 29929 29805 0 -1 4194304 1553 0 0 0 209 0 0 0 25 0 1 0 179153203 16162816 1534 1992294400 134512640 137136520 4294956256 18446744073709551615 134544440 0 0 4096 16384 0 0 0 17 1 0 0
/proc/29929/statm: 3946 1534 197 640 0 3302 0
Current children cumulated CPU time (s) 2.09
Current children cumulated vsize (KiB) 15784

Child status: 0
Real time (s): 2.19008
CPU time (s): 2.18867
CPU user time (s): 2.17767
CPU system time (s): 0.010998
CPU usage (%): 99.9356
Max. virtual memory (cumulated for all children) (KiB): 15784

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.17767
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1575
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= 4

runsolver used 0.003999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node2 at 2009-06-16 03:25:22
IDJOB=1880122
IDBENCH=1191
IDSOLVER=701
FILE ID=node2/1880122-1245115522
PBS_JOBID= 9363658
Free space on /tmp= 66452 MiB

SOLVER NAME= bsolo 3.1 pb
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111216864.opb
COMMAND LINE= bsolo -l3 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1880122-1245115522/watcher-1880122-1245115522 -o /tmp/evaluation-result-1880122-1245115522/solver-1880122-1245115522 -C 1800 -W 2000 -M 1800  bsolo -l3 -t1800 -m1800 HOME/instance-1880122-1245115522.opb

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

MD5SUM BENCH= 01a11c78606c6281a399e7d01c40beb6
RANDOM SEED=1502993609

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:       1395584 kB
Buffers:         26152 kB
Cached:         556348 kB
SwapCached:        260 kB
Active:          38764 kB
Inactive:       556944 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1395584 kB
SwapTotal:     4192956 kB
SwapFree:      4191896 kB
Dirty:            3948 kB
Writeback:           0 kB
Mapped:          21724 kB
Slab:            50556 kB
Committed_AS:   136964 kB
PageTables:       1468 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= 66448 MiB
End job on node2 at 2009-06-16 03:25:24