Trace number 267816

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, and are wall clock time (not CPU 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
VALCSP 3.1SAT 132.465 132.833

DiagnosticValue
CHECKS2295700000
NODES1018230

General information on the benchmark

Namequeens/
queens-120.xml
MD5SUM548120b0d306cf96da26e553b06794d8
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.603907
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables120
Number of constraints7140
Maximum constraint arity2
Maximum domain size120
Number of constraints which are defined in extension0
Number of constraints which are defined in intension7140
Global constraints used (with number of constraints)

Solver Data (download as text)

132.76	s SATISFIABLE
132.76	v 1 3 5 59 63 4 55 7 68 56 58 69 6 75 106 102 8 84 57 53 44 74 9 64 78 48 70 62 79 10 47 60 72 51 45 65 42 11 54 43 71 107 67 112 115 18 12 66 37 92 40 114 73 98 49 19 13 77 85 39 82 111 95 118 33 61 20 14 120 83 96 99 110 119 116 87 113 109 21 15 50 117 97 90 22 52 91 35 76 38 103 23 16 101 80 104 89 24 108 81 46 86 93 100 25 30 17 105 28 88 94 29 26 32 36 41 2 27 31 34 
132.76	d CHECKS 2.2957e+09
132.76	d NODES 1.01823e+06

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node4/watcher-267816-1168977721 -o ROOT/results/node4/solver-267816-1168977721 -C 1800 -M 900 /tmp/evaluation/267816-1168977721/VALCSP /tmp/evaluation/267816-1168977721/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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

/proc/loadavg: 0.00 0.00 0.00 4/87 26786
/proc/meminfo: memFree=1534640/2055920 swapFree=4182144/4192956
[pid=26785] ppid=26783 vsize=2164 CPUtime=0
/proc/26785/stat : 26785 (VALCSP) R 26783 26785 26525 0 -1 4194304 240 0 0 0 0 0 0 0 18 0 1 0 246167782 2215936 218 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528646 0 0 4096 0 0 0 0 17 1 0 0
/proc/26785/statm: 541 218 65 8 0 213 0

[startup+0.107778 s]
/proc/loadavg: 0.00 0.00 0.00 4/87 26786
/proc/meminfo: memFree=1534640/2055920 swapFree=4182144/4192956
[pid=26785] ppid=26783 vsize=3880 CPUtime=0.1
/proc/26785/stat : 26785 (VALCSP) R 26783 26785 26525 0 -1 4194304 663 0 0 0 10 0 0 0 18 0 1 0 246167782 3973120 641 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528591 0 0 4096 0 0 0 0 17 1 0 0
/proc/26785/statm: 970 641 65 8 0 642 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 3880

[startup+0.515816 s]
/proc/loadavg: 0.00 0.00 0.00 4/87 26786
/proc/meminfo: memFree=1534640/2055920 swapFree=4182144/4192956
[pid=26785] ppid=26783 vsize=10480 CPUtime=0.51
/proc/26785/stat : 26785 (VALCSP) R 26783 26785 26525 0 -1 4194304 2327 0 0 0 50 1 0 0 22 0 1 0 246167782 10731520 2305 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529299 0 0 4096 0 0 0 0 17 1 0 0
/proc/26785/statm: 2620 2305 65 8 0 2292 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 10480

[startup+1.33689 s]
/proc/loadavg: 0.00 0.00 0.00 2/87 26786
/proc/meminfo: memFree=1515824/2055920 swapFree=4182144/4192956
[pid=26785] ppid=26783 vsize=23680 CPUtime=1.33
/proc/26785/stat : 26785 (VALCSP) R 26783 26785 26525 0 -1 4194304 5643 0 0 0 130 3 0 0 25 0 1 0 246167782 24248320 5621 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134528576 0 0 4096 0 0 0 0 17 1 0 0
/proc/26785/statm: 5920 5621 65 8 0 5592 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 23680

[startup+2.97405 s]
/proc/loadavg: 0.00 0.00 0.00 2/87 26788
/proc/meminfo: memFree=1497520/2055920 swapFree=4182144/4192956
[pid=26785] ppid=26783 vsize=50080 CPUtime=2.96
/proc/26785/stat : 26785 (VALCSP) R 26783 26785 26525 0 -1 4194304 12244 0 0 0 291 5 0 0 25 0 1 0 246167782 51281920 12222 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 1 0 0
/proc/26785/statm: 12520 12222 65 8 0 12192 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 50080

[startup+6.25938 s]
/proc/loadavg: 0.08 0.02 0.01 2/88 26797
/proc/meminfo: memFree=1440232/2055920 swapFree=4182144/4192956
[pid=26785] ppid=26783 vsize=104476 CPUtime=6.22
/proc/26785/stat : 26785 (VALCSP) R 26783 26785 26525 0 -1 4194304 25845 0 0 0 610 12 0 0 25 0 1 0 246167782 106983424 25823 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/26785/statm: 26119 25823 65 8 0 25791 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 104476

[startup+12.717 s]
/proc/loadavg: 0.23 0.05 0.02 3/86 26838
/proc/meminfo: memFree=1232560/2055920 swapFree=4182144/4192956
[pid=26785] ppid=26783 vsize=216404 CPUtime=12.63
/proc/26785/stat : 26785 (VALCSP) R 26783 26785 26525 0 -1 4194304 53821 0 0 0 1242 21 0 0 25 0 1 0 246167782 221597696 53799 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134529381 0 0 4096 0 0 0 0 17 0 0 0
/proc/26785/statm: 54101 53799 65 8 0 53773 0
Current children cumulated CPU time (s) 12.63
Current children cumulated vsize (KiB) 216404

[startup+25.5372 s]
/proc/loadavg: 0.62 0.14 0.05 3/86 26838
/proc/meminfo: memFree=856688/2055920 swapFree=4182144/4192956
[pid=26785] ppid=26783 vsize=419232 CPUtime=25.41
/proc/26785/stat : 26785 (VALCSP) R 26783 26785 26525 0 -1 4194304 104556 0 0 0 2501 40 0 0 25 0 1 0 246167782 429293568 104534 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134524979 0 0 4096 0 0 0 0 17 0 0 0
/proc/26785/statm: 104808 104534 67 8 0 104480 0
Current children cumulated CPU time (s) 25.41
Current children cumulated vsize (KiB) 419232

[startup+51.1687 s]
/proc/loadavg: 1.09 0.29 0.10 3/86 26838
/proc/meminfo: memFree=505264/2055920 swapFree=4182144/4192956
[pid=26785] ppid=26783 vsize=419232 CPUtime=50.91
/proc/26785/stat : 26785 (VALCSP) R 26783 26785 26525 0 -1 4194304 104556 0 0 0 5051 40 0 0 25 0 1 0 246167782 429293568 104534 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134524973 0 0 4096 0 0 0 0 17 0 0 0
/proc/26785/statm: 104808 104534 67 8 0 104480 0
Current children cumulated CPU time (s) 50.91
Current children cumulated vsize (KiB) 419232

[startup+102.409 s]
/proc/loadavg: 1.21 0.46 0.16 2/81 26847
/proc/meminfo: memFree=1112672/2055920 swapFree=4182144/4192956
[pid=26785] ppid=26783 vsize=419232 CPUtime=102.04
/proc/26785/stat : 26785 (VALCSP) R 26783 26785 26525 0 -1 4194304 104556 0 0 0 10164 40 0 0 25 0 1 0 246167782 429293568 104534 18446744073709551615 134512640 134547260 4294956720 18446744073709551615 134524875 0 0 4096 0 0 0 0 17 1 0 0
/proc/26785/statm: 104808 104534 67 8 0 104480 0
Current children cumulated CPU time (s) 102.04
Current children cumulated vsize (KiB) 419232

Child status: 0
Real time (s): 132.833
CPU time (s): 132.465
CPU user time (s): 131.989
CPU system time (s): 0.475927
CPU usage (%): 99.723
Max. virtual memory (cumulated for all children) (KiB): 419232

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 131.989
system time used= 0.475927
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 104585
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= 8
involuntary context switches= 2478

runsolver used 0.148977 s user time and 0.331949 s system time

The end

Launcher Data (download as text)

Begin job on node4 on Tue Jan 16 20:02:02 UTC 2007


IDJOB= 267816
IDBENCH= 3089
IDSOLVER= 90
FILE ID= node4/267816-1168977721

PBS_JOBID= 3565941

Free space on /tmp= 66564 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/queens/queens-120.xml
COMMAND LINE= /tmp/evaluation/267816-1168977721/VALCSP /tmp/evaluation/267816-1168977721/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-267816-1168977721 -o ROOT/results/node4/solver-267816-1168977721 -C 1800 -M 900  /tmp/evaluation/267816-1168977721/VALCSP /tmp/evaluation/267816-1168977721/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  548120b0d306cf96da26e553b06794d8

RANDOM SEED= 239264369

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.223
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		: 3000.223
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:       1535184 kB
Buffers:         52440 kB
Cached:         359052 kB
SwapCached:       2220 kB
Active:         216396 kB
Inactive:       237468 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1535184 kB
SwapTotal:     4192956 kB
SwapFree:      4182144 kB
Dirty:            1008 kB
Writeback:           0 kB
Mapped:          52580 kB
Slab:            51480 kB
Committed_AS:  6978968 kB
PageTables:       2476 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= 66564 MiB



End job on node4 on Tue Jan 16 20:04:28 UTC 2007