Trace number 192081

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
buggy_2_5_s 2007-01-08SAT 19.3161 19.9826

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)

c 
c 
c 
c solution file
c 
c 

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

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/node5/watcher-192081-1168280046 -o ROOT/results/node5/solver-192081-1168280046 -C 1800 -M 900 /tmp/evaluation/192081-1168280046/solver2 /tmp/evaluation/192081-1168280046/unknown 1800 

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: 1.85 1.97 1.97 5/98 16211
/proc/meminfo: memFree=1181664/2055920 swapFree=4192812/4192956
[pid=16210] ppid=16208 vsize=5352 CPUtime=0
/proc/16210/stat : 16210 (solver2) R 16208 16210 14592 0 -1 4194304 264 0 0 0 0 0 0 0 20 0 1 0 156619381 5480448 231 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 226913479327 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/16210/statm: 1338 231 193 169 0 49 0
[pid=16212] ppid=16210 vsize=5352 CPUtime=0
/proc/16212/stat : 16212 (solver2) R 16210 16210 14592 0 -1 4194368 0 0 0 0 0 0 0 0 20 0 1 0 156619381 5480448 231 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 226913479327 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/16212/statm: 1338 231 193 169 0 49 0

[startup+0.104692 s]
/proc/loadavg: 1.85 1.97 1.97 5/98 16211
/proc/meminfo: memFree=1181664/2055920 swapFree=4192812/4192956
[pid=16210] ppid=16208 vsize=5352 CPUtime=0
/proc/16210/stat : 16210 (solver2) S 16208 16210 14592 0 -1 4194304 353 334 0 0 0 0 0 0 22 0 1 0 156619381 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 226913477444 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/16210/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5352

[startup+0.512734 s]
/proc/loadavg: 1.85 1.97 1.97 5/98 16211
/proc/meminfo: memFree=1181664/2055920 swapFree=4192812/4192956
[pid=16210] ppid=16208 vsize=5352 CPUtime=0.1
/proc/16210/stat : 16210 (solver2) S 16208 16210 14592 0 -1 4194304 376 2302 0 25 0 0 9 1 15 0 1 0 156619381 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 226913477444 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/16210/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5352

[startup+1.33383 s]
/proc/loadavg: 1.86 1.97 1.97 3/99 16223
/proc/meminfo: memFree=1152216/2055920 swapFree=4192812/4192956
[pid=16210] ppid=16208 vsize=5352 CPUtime=0.1
/proc/16210/stat : 16210 (solver2) S 16208 16210 14592 0 -1 4194304 376 2302 0 25 0 0 9 1 15 0 1 0 156619381 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 226913477444 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/16210/statm: 1338 242 203 169 0 49 0
[pid=16223] ppid=16210 vsize=30444 CPUtime=0.72
/proc/16223/stat : 16223 (bordewijk) R 16210 16210 14592 0 -1 4194304 7093 0 4 0 64 8 0 0 23 0 1 0 156619419 31174656 7067 18446744073709551615 134512640 134912576 4294956752 18446744073709551615 134730511 0 0 4096 0 0 0 0 17 1 0 0
/proc/16223/statm: 7611 7067 210 97 0 6892 0
Current children cumulated CPU time (s) 0.82
Current children cumulated vsize (KiB) 35796

[startup+2.97101 s]
/proc/loadavg: 1.86 1.97 1.97 3/99 16223
/proc/meminfo: memFree=1124824/2055920 swapFree=4192812/4192956
[pid=16210] ppid=16208 vsize=5352 CPUtime=1.87
/proc/16210/stat : 16210 (solver2) S 16208 16210 14592 0 -1 4194304 397 14771 0 29 0 0 123 64 16 0 1 0 156619381 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 226913477444 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/16210/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 1.87
Current children cumulated vsize (KiB) 5352

[startup+6.25938 s]
/proc/loadavg: 1.87 1.97 1.97 3/99 16224
/proc/meminfo: memFree=1157272/2055920 swapFree=4192812/4192956
[pid=16210] ppid=16208 vsize=5352 CPUtime=1.87
/proc/16210/stat : 16210 (solver2) S 16208 16210 14592 0 -1 4194304 397 14771 0 29 0 0 123 64 16 0 1 0 156619381 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 226913477444 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/16210/statm: 1338 242 203 169 0 49 0
[pid=16224] ppid=16210 vsize=15736 CPUtime=3.83
/proc/16224/stat : 16224 (standalone) R 16210 16210 14592 0 -1 4194304 3670 0 0 0 369 14 0 0 25 0 1 0 156619619 16113664 3363 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 4148983794 0 0 4096 0 0 0 0 17 1 0 0
/proc/16224/statm: 3934 3363 137 64 0 3249 0
Current children cumulated CPU time (s) 5.7
Current children cumulated vsize (KiB) 21088

[startup+12.7559 s]
/proc/loadavg: 1.88 1.97 1.97 3/99 16224
/proc/meminfo: memFree=1157400/2055920 swapFree=4192812/4192956
[pid=16210] ppid=16208 vsize=5352 CPUtime=1.87
/proc/16210/stat : 16210 (solver2) S 16208 16210 14592 0 -1 4194304 397 14771 0 29 0 0 123 64 16 0 1 0 156619381 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 226913477444 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/16210/statm: 1338 242 203 169 0 49 0
[pid=16224] ppid=16210 vsize=15736 CPUtime=10.26
/proc/16224/stat : 16224 (standalone) R 16210 16210 14592 0 -1 4194304 3691 0 0 0 1012 14 0 0 25 0 1 0 156619619 16113664 3384 18446744073709551615 134512640 134775488 4294956896 18446744073709551615 134554288 0 0 4096 0 0 0 0 17 1 0 0
/proc/16224/statm: 3934 3384 138 64 0 3249 0
Current children cumulated CPU time (s) 12.13
Current children cumulated vsize (KiB) 21088

Child status: 0
Real time (s): 19.9826
CPU time (s): 19.3161
CPU user time (s): 18.5202
CPU system time (s): 0.795879
CPU usage (%): 96.6646
Max. virtual memory (cumulated for all children) (KiB): 48156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 18.5202
system time used= 0.795879
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 18878
page faults= 29
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 307
involuntary context switches= 986

runsolver used 0.025996 s user time and 0.074988 s system time

The end

Launcher Data (download as text)

Begin job on node5 on Mon Jan  8 18:14:09 UTC 2007


IDJOB= 192081
IDBENCH= 3089
FILE ID= node5/192081-1168280046

PBS_JOBID= 3501553

Free space on /tmp= 66345 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queens/queens-120.xml
COMMAND LINE= /tmp/evaluation/192081-1168280046/solver2 /tmp/evaluation/192081-1168280046/unknown 1800
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node5/watcher-192081-1168280046 -o ROOT/results/node5/solver-192081-1168280046 -C 1800 -M 900  /tmp/evaluation/192081-1168280046/solver2 /tmp/evaluation/192081-1168280046/unknown 1800

META MD5SUM SOLVER= 2182e29fee250f6e45b9a85a6429fa3a
MD5SUM BENCH=  548120b0d306cf96da26e553b06794d8

RANDOM SEED= 130659091

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		: 3000.240
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		: 3000.240
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:       1182080 kB
Buffers:         65904 kB
Cached:         579144 kB
SwapCached:          0 kB
Active:         355372 kB
Inactive:       453756 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1182080 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           11236 kB
Writeback:           0 kB
Mapped:         193044 kB
Slab:            49200 kB
Committed_AS:  5025048 kB
PageTables:       2444 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= 66338 MiB



End job on node5 on Mon Jan  8 18:14:30 UTC 2007