Trace number 2078895

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
bpsolver 09SAT 0.507922 0.519079

General information on the benchmark

Namecsp/nengfa/
normalized-queens2.xml
MD5SUMfeda91e5b3c1ff49ee389ed427acc709
Bench CategoryAlldiff (alldiff)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.118981
Satisfiable
(Un)Satisfiability was proved
Number of variables310
Number of constraints211
Maximum constraint arity104
Maximum domain size104
Number of constraints which are defined in extension0
Number of constraints which are defined in intension208
Global constraints used (with number of constraints)alldifferent(3)

Solver Data 

0.00/0.02	c bpsolver version 6.29.2009
0.00/0.02	c converting(HOME/instance-2078895-1247367577)
0.00/0.09	c Converted in 36 ms
0.09/0.10	c solving(HOME/instance-2078895-1247367577,1800000)
0.09/0.10	c solving(HOME/instance-2078895-1247367577,1800000)
0.48/0.50	c (ffc_inout)
0.48/0.50	s SATISFIABLE
0.48/0.50	v 25 22 21 20 39 37 35 37 34 31 30 26 22 38 33 28 33 27 21 29 22 15 40 32 24 98 89 80 34 24 14 31 20 9 96 84 72 100 87 74 115 101 87 32 17 2 91 75 59 95 78 61 36 18 0 89 70 51 108 88 68 94 73 52 35 13 -9 106 83 60 93 69 45 44 19 -6 122 96 70 118 91 64 114 86 58 43 14 -15 46 16 -14 128 97 66 113 81 49 48 15 -18 137 103 69 58 23 -12 129 93 57 136 99 62 130 92 54 143 104 65 42 2 -38 126 85 44 140 98 56 133 90 47 138 94 50 145 100 55 125 79 33 107 60 13 119 71 23 79 30 -19 116 66 16 54 3 -48 53 1 -51 57 4 -49 111 57 3 60 5 -50 110 54 -2 92 35 -22 64 6 -52 124 65 6 88 28 -32 101 40 -21 69 7 -55 102 39 -24 112 48 -16 127 62 -3 104 38 -28 75 8 -59 97 29 -39 105 36 -33 120 50 -20 134 63 -8 103 31 -41 82 9 -64 117 43 -31 139 64 -11 123 47 -29 149 72 -5 131 53 -25 121 42 -37 90 10 -70 132 51 -30 141 59 -23 159 76 -7 179 95 11 187 102 17 168 82 -4 161 74 -13 99 11 -77 135 46 -43 170 80 -10 146 55 -36 150 58 -34 160 67 -26 171 77 -17 163 68 -27 157 61 -35 109 12 -85 154 56 -42 151 52 -47 144 44 -56 142 41 -60 147 45 -57 152 49 -54 
0.48/0.51	
0.48/0.51	c Time=413 ms Backtracks=1789
0.48/0.51

Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2078895-1247367577/watcher-2078895-1247367577 -o /tmp/evaluation-result-2078895-1247367577/solver-2078895-1247367577 -C 1800 -W 2000 -M 900 HOME/solver HOME/instance-2078895-1247367577 1800 

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): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.22 2.06 2.05 4/85 23766
/proc/meminfo: memFree=1586808/2055920 swapFree=4192812/4192956
[pid=23766] ppid=23764 vsize=18576 CPUtime=0
/proc/23766/stat : 23766 (runsolver) R 23764 23766 19487 0 -1 4194368 15 0 0 0 0 0 0 0 19 0 1 0 23824220 19021824 284 996147200 4194304 4302564 548682068528 18446744073709551615 268211092170 0 0 4096 24578 0 0 0 17 1 0 0
/proc/23766/statm: 4644 284 249 26 0 2626 0

[startup+0.10538 s]
/proc/loadavg: 2.22 2.06 2.05 4/85 23766
/proc/meminfo: memFree=1586808/2055920 swapFree=4192812/4192956
[pid=23766] ppid=23764 vsize=62204 CPUtime=0.09
/proc/23766/stat : 23766 (bprolog) R 23764 23766 19487 0 -1 4194304 1230 0 0 0 6 3 0 0 20 0 1 0 23824220 63696896 941 996147200 134512640 135105188 4294956096 18446744073709551615 134557074 0 0 4096 2 0 0 0 17 1 0 0
/proc/23766/statm: 15551 941 180 144 0 15035 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 62204

[startup+0.201392 s]
/proc/loadavg: 2.22 2.06 2.05 4/85 23766
/proc/meminfo: memFree=1586808/2055920 swapFree=4192812/4192956
[pid=23766] ppid=23764 vsize=72444 CPUtime=0.18
/proc/23766/stat : 23766 (bprolog) R 23764 23766 19487 0 -1 4194304 1545 0 0 0 15 3 0 0 21 0 2 0 23824220 74182656 1255 996147200 134512640 135105188 4294956096 18446744073709551615 134722370 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/23766/statm: 18111 1255 195 144 0 17595 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 72444

[startup+0.3014 s]
/proc/loadavg: 2.22 2.06 2.05 4/85 23766
/proc/meminfo: memFree=1586808/2055920 swapFree=4192812/4192956
[pid=23766] ppid=23764 vsize=72444 CPUtime=0.28
/proc/23766/stat : 23766 (bprolog) R 23764 23766 19487 0 -1 4194304 1545 0 0 0 25 3 0 0 22 0 2 0 23824220 74182656 1255 996147200 134512640 135105188 4294956096 18446744073709551615 134722435 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/23766/statm: 18111 1255 195 144 0 17595 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 72444

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

[startup+0.401412 s]
/proc/loadavg: 2.22 2.06 2.05 4/85 23766
/proc/meminfo: memFree=1586808/2055920 swapFree=4192812/4192956
[pid=23766] ppid=23764 vsize=72444 CPUtime=0.38
/proc/23766/stat : 23766 (bprolog) R 23764 23766 19487 0 -1 4194304 1545 0 0 0 35 3 0 0 23 0 2 0 23824220 74182656 1255 996147200 134512640 135105188 4294956096 18446744073709551615 134631170 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/23766/statm: 18111 1255 195 144 0 17595 0
Current children cumulated CPU time (s) 0.38
Current children cumulated vsize (KiB) 72444

[startup+0.501423 s]
/proc/loadavg: 2.22 2.06 2.05 4/85 23766
/proc/meminfo: memFree=1586808/2055920 swapFree=4192812/4192956
[pid=23766] ppid=23764 vsize=72444 CPUtime=0.48
/proc/23766/stat : 23766 (bprolog) R 23764 23766 19487 0 -1 4194304 1545 0 0 0 45 3 0 0 24 0 2 0 23824220 74182656 1255 996147200 134512640 135105188 4294956096 18446744073709551615 134711760 0 0 4096 2 18446744073709551615 0 0 17 1 0 0
/proc/23766/statm: 18111 1255 195 144 0 17595 0
Current children cumulated CPU time (s) 0.48
Current children cumulated vsize (KiB) 72444

Child status: 0
Real time (s): 0.519079
CPU time (s): 0.507922
CPU user time (s): 0.466929
CPU system time (s): 0.040993
CPU usage (%): 97.8506
Max. virtual memory (cumulated for all children) (KiB): 72444

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.466929
system time used= 0.040993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1545
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= 362

runsolver used 0.002999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node32 at 2009-07-12 04:59:37
IDJOB=2078895
IDBENCH=56822
IDSOLVER=770
FILE ID=node32/2078895-1247367577
PBS_JOBID= 9507034
Free space on /tmp= 66368 MiB

SOLVER NAME= bpsolver 09
BENCH NAME= CPAI08/csp/nengfa/normalized-queens2.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2078895-1247367577/watcher-2078895-1247367577 -o /tmp/evaluation-result-2078895-1247367577/solver-2078895-1247367577 -C 1800 -W 2000 -M 900  HOME/solver HOME/instance-2078895-1247367577 1800

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= feda91e5b3c1ff49ee389ed427acc709
RANDOM SEED=269242398

node32.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		: 3000.236
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		: 3000.236
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:       1587288 kB
Buffers:         40564 kB
Cached:         167856 kB
SwapCached:          0 kB
Active:         324084 kB
Inactive:        77808 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1587288 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1620 kB
Writeback:           0 kB
Mapped:         209136 kB
Slab:            51428 kB
Committed_AS:   899244 kB
PageTables:       2240 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= 66368 MiB
End job on node32 at 2009-07-12 04:59:38