Trace number 1055481

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
MDG-probe 2008-06-27SAT 0.154975 0.161151

DiagnosticValue
ASSIGNMENTS339
CHECKS147796

General information on the benchmark

Namecsp/nengfa/
normalized-queens2.xml
MD5SUMfeda91e5b3c1ff49ee389ed427acc709
Bench CategoryGLOBAL (global constraints)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.075987
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 (download as text)

0.08/0.16	c mistral-prime version 1.313
0.08/0.16	c 
0.08/0.16	c Parsing xml file
0.08/0.16	c          domains...............     0	(207 domains)
0.08/0.16	c          variables.............     0	(310 variables)
0.08/0.16	c          predicates............  0.01	(208 predicates)
0.08/0.16	c          constraints...........  0.01	(211 constraints)
0.08/0.16	c Parsing time:   0.02
0.08/0.16	c
0.08/0.16	c Building model
0.08/0.16	c         0 constants
0.08/0.16	c         0 Boolean variables    (+0)
0.08/0.16	c         0 range variables      (+0)
0.08/0.16	c       310 domain (b) variables (+0)
0.08/0.16	c         0 domain (l) variables (+0)
0.08/0.16	c         3 constraints          (+16274)
0.08/0.16	c         0 values 
0.08/0.16	c Building time:   0.01
0.08/0.16	c
0.08/0.16	c Solving instance
0.08/0.16	c          heuristic = dom/wdeg
0.08/0.16	c          Randomized probing iteration = 100
0.08/0.16	c          probing limit = 30
0.08/0.16	c          level based weights = no
0.08/0.16	c          impact probing = no
0.08/0.16	c          restart policy = No restart
0.08/0.16	c          probing .   0.1
0.08/0.16	c          Probing Nodes   339
0.08/0.16	c Solving time:    0.1
0.08/0.16	c
0.08/0.16	s SATISFIABLE
0.08/0.16	v 101 43 42 41 32 30 28 41 38 35 108 104 100 76 71 66 96 90 84 100 93 86 22 14 6 85 76 67 75 65 55 80 69 58 111 99 87 40 27 14 117 103 89 90 75 60 95 79 63 54 37 20 79 61 43 21 2 -17 88 68 48 64 43 22 69 47 25 44 21 -2 122 98 74 73 48 23 109 83 57 36 9 -18 77 49 21 52 23 -6 102 72 42 63 32 1 33 1 -31 92 59 26 130 96 62 129 94 59 67 31 -5 61 24 -13 105 67 29 116 77 38 124 84 44 66 25 -16 59 17 -25 72 29 -14 56 12 -32 126 81 36 68 22 -24 99 52 5 114 66 18 89 40 -9 104 54 4 87 36 -15 149 97 45 94 41 -12 58 4 -50 74 19 -36 84 28 -28 103 46 -11 118 60 2 137 78 19 71 11 -49 134 73 12 97 35 -27 133 70 7 82 18 -46 120 55 -10 140 74 8 93 26 -41 107 39 -29 155 86 17 132 62 -8 121 50 -21 160 88 16 78 5 -68 81 7 -67 177 102 27 86 10 -66 169 92 15 91 13 -65 168 89 10 83 3 -77 139 58 -23 138 56 -26 136 53 -30 148 64 -20 119 34 -51 181 95 9 174 87 0 173 85 -3 171 82 -7 123 33 -57 135 44 -47 98 6 -86 113 20 -73 145 51 -43 186 91 -4 112 16 -80 197 100 3 106 8 -90 156 57 -42 115 15 -85 146 45 -56 182 80 -22 166 63 -40
0.08/0.16	d CHECKS 147796
0.08/0.16	d ASSIGNMENTS 339

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1055481-1215059678/watcher-1055481-1215059678 -o /tmp/evaluation-result-1055481-1215059678/solver-1055481-1215059678 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1055481-1215059678.xml -v 1 -rs 315777705 -probe 1 -ph 0 -heu dom/wdeg -res no 

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): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.04 2.01 4/72 31045
/proc/meminfo: memFree=1785784/2055920 swapFree=4180076/4192956
[pid=31045] ppid=31043 vsize=18572 CPUtime=0
/proc/31045/stat : 31045 (runsolver) R 31043 31045 27392 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 1984941815 19017728 292 996147200 4194304 4296836 548682068352 18446744073709551615 225612197159 0 0 4096 24578 0 0 0 17 1 0 0
/proc/31045/statm: 4643 292 257 25 0 2626 0

[startup+0.0900261 s]
/proc/loadavg: 2.00 2.04 2.01 4/72 31045
/proc/meminfo: memFree=1785784/2055920 swapFree=4180076/4192956
[pid=31045] ppid=31043 vsize=9304 CPUtime=0.07
/proc/31045/stat : 31045 (xsolve) R 31043 31045 27392 0 -1 4194304 1678 0 0 0 7 0 0 0 18 0 1 0 1984941815 9527296 1611 996147200 134512640 135239859 4294956144 18446744073709551615 134820750 0 0 4096 0 0 0 0 17 1 0 0
/proc/31045/statm: 2326 1611 436 177 0 1229 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 9304

[startup+0.102023 s]
/proc/loadavg: 2.00 2.04 2.01 4/72 31045
/proc/meminfo: memFree=1785784/2055920 swapFree=4180076/4192956
[pid=31045] ppid=31043 vsize=9304 CPUtime=0.08
/proc/31045/stat : 31045 (xsolve) R 31043 31045 27392 0 -1 4194304 1683 0 0 0 8 0 0 0 18 0 1 0 1984941815 9527296 1616 996147200 134512640 135239859 4294956144 18446744073709551615 135067338 0 0 4096 0 0 0 0 17 1 0 0
/proc/31045/statm: 2326 1616 436 177 0 1229 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 9304

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

Child status: 0
Real time (s): 0.161151
CPU time (s): 0.154975
CPU user time (s): 0.144977
CPU system time (s): 0.009998
CPU usage (%): 96.1676
Max. virtual memory (cumulated for all children) (KiB): 9304

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.144977
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1717
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= 7
involuntary context switches= 3

runsolver used 0.004999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node31 at 2008-07-03 06:34:38
IDJOB=1055481
IDBENCH=56822
IDSOLVER=342
FILE ID=node31/1055481-1215059678
PBS_JOBID= 7875111
Free space on /tmp= 66544 MiB

SOLVER NAME= MDG-probe 2008-06-27
BENCH NAME= CPAI08/csp/nengfa/normalized-queens2.xml
COMMAND LINE= HOME/xsolve BENCHNAME -v 1 -rs RANDOMSEED -probe 1 -ph 0 -heu dom/wdeg -res no
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1055481-1215059678/watcher-1055481-1215059678 -o /tmp/evaluation-result-1055481-1215059678/solver-1055481-1215059678 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1055481-1215059678.xml -v 1 -rs 315777705 -probe 1 -ph 0 -heu dom/wdeg -res no

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= feda91e5b3c1ff49ee389ed427acc709
RANDOM SEED=315777705

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		: 3000.232
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		: 3000.232
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:       1786264 kB
Buffers:         27456 kB
Cached:         139972 kB
SwapCached:       5972 kB
Active:         147856 kB
Inactive:        63548 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1786264 kB
SwapTotal:     4192956 kB
SwapFree:      4180076 kB
Dirty:            1008 kB
Writeback:           0 kB
Mapped:          51884 kB
Slab:            42924 kB
Committed_AS:  3049916 kB
PageTables:       2176 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= 66544 MiB
End job on node31 at 2008-07-03 06:34:38