Trace number 1091111

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
galac EUNSAT 0.823874 0.885869

General information on the benchmark

Namecsp/graphColoring/mug/
normalized-mug100-25-3.xml
MD5SUM52c2aac1c138c2847f879db9d7cfc816
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.852869
Satisfiable
(Un)Satisfiability was proved
Number of variables100
Number of constraints166
Maximum constraint arity2
Maximum domain size3
Number of constraints which are defined in extension0
Number of constraints which are defined in intension166
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.03	c --- Preproc Stats ---
0.01/0.65	c start processing
0.01/0.65	c start relation processing
0.01/0.65	c start cnf exporting
0.01/0.81	c parsing time : 0.525
0.01/0.81	c preprocessing time : 0.687
0.01/0.81	
0.01/0.81	c Nary constraints - conflicts : 0 supports : 0
0.01/0.81	c Binary constraints - conflicts : 166 supports :0
0.01/0.81	c max arity constraint : 2
0.01/0.81	c Max Tuples generated 9
0.01/0.81	c relations : 1
0.01/0.81	c relations BDD: 0
0.01/0.81	c sampling 0/0
0.01/0.81	c vars : 301 - clauses :  898
0.01/0.81	
0.01/0.87	 
0.01/0.87	c --- SAT Solver Stats ---
0.01/0.87	 
0.01/0.87	c eSAT 0.1 : minisat core with additionnal features
0.01/0.87	c ============================[ Problem Statistics ]=============================
0.01/0.87	c |                                                                             |
0.01/0.87	c |  Number of variables:  300                                                  |
0.01/0.87	c |  Number of clauses:    898                                                  |
0.01/0.87	c |  Parsing time:         0.00         s                                       |
0.01/0.88	c restarts              : 84
0.01/0.88	c conflicts             : 176            (19560 /sec)
0.01/0.88	c decisions             : 905            (71.38 % random) (100578 /sec)
0.01/0.88	c euip                  : 9           
0.01/0.88	c propagations          : 4284           (476106 /sec)
0.01/0.88	c conflict literals     : 727            (11.56 % deleted)
0.01/0.88	c Memory used           : 1.95 MB
0.01/0.88	c CPU time              : 0.008998 s
0.01/0.88	c 
0.01/0.88	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

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-1091111-1215273865/watcher-1091111-1215273865 -o /tmp/evaluation-result-1091111-1215273865/solver-1091111-1215273865 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/galacE.sh HOME/instance-1091111-1215273865.xml 

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: 1.92 1.98 1.99 4/80 24487
/proc/meminfo: memFree=1629432/2055920 swapFree=4137340/4192956
[pid=24487] ppid=24485 vsize=18572 CPUtime=0
/proc/24487/stat : 24487 (runsolver) R 24485 24487 23877 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 1011841441 19017728 292 996147200 4194304 4296836 548682068496 18446744073709551615 269028486439 0 0 4096 24578 0 0 0 17 1 0 0
/proc/24487/statm: 4643 292 257 25 0 2626 0

[startup+0.075511 s]
/proc/loadavg: 1.92 1.98 1.99 4/80 24487
/proc/meminfo: memFree=1629432/2055920 swapFree=4137340/4192956
[pid=24487] ppid=24485 vsize=47572 CPUtime=0.01
/proc/24487/stat : 24487 (galacE.sh) S 24485 24487 23877 0 -1 4194304 765 1697 0 0 0 0 0 1 18 0 1 0 1011841441 48713728 364 996147200 4194304 4520092 548682068832 18446744073709551615 269028092762 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/24487/statm: 11893 364 245 79 0 219 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 47572

[startup+0.101886 s]
/proc/loadavg: 1.92 1.98 1.99 4/80 24487
/proc/meminfo: memFree=1629432/2055920 swapFree=4137340/4192956
[pid=24487] ppid=24485 vsize=47572 CPUtime=0.01
/proc/24487/stat : 24487 (galacE.sh) S 24485 24487 23877 0 -1 4194304 765 1697 0 0 0 0 0 1 18 0 1 0 1011841441 48713728 364 996147200 4194304 4520092 548682068832 18446744073709551615 269028092762 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/24487/statm: 11893 364 245 79 0 219 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 47572

[startup+0.301903 s]
/proc/loadavg: 1.92 1.98 1.99 4/80 24487
/proc/meminfo: memFree=1629432/2055920 swapFree=4137340/4192956
[pid=24487] ppid=24485 vsize=47572 CPUtime=0.01
/proc/24487/stat : 24487 (galacE.sh) S 24485 24487 23877 0 -1 4194304 765 1697 0 0 0 0 0 1 18 0 1 0 1011841441 48713728 364 996147200 4194304 4520092 548682068832 18446744073709551615 269028092762 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/24487/statm: 11893 364 245 79 0 219 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 47572

[startup+0.701934 s]
/proc/loadavg: 1.92 1.98 1.99 4/80 24487
/proc/meminfo: memFree=1629432/2055920 swapFree=4137340/4192956
[pid=24487] ppid=24485 vsize=47572 CPUtime=0.01
/proc/24487/stat : 24487 (galacE.sh) S 24485 24487 23877 0 -1 4194304 765 1697 0 0 0 0 0 1 18 0 1 0 1011841441 48713728 364 996147200 4194304 4520092 548682068832 18446744073709551615 269028092762 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/24487/statm: 11893 364 245 79 0 219 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 47572

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

[startup+0.803224 s]
/proc/loadavg: 1.92 1.98 1.99 4/80 24487
/proc/meminfo: memFree=1629432/2055920 swapFree=4137340/4192956
[pid=24487] ppid=24485 vsize=47572 CPUtime=0.01
/proc/24487/stat : 24487 (galacE.sh) S 24485 24487 23877 0 -1 4194304 765 1697 0 0 0 0 0 1 18 0 1 0 1011841441 48713728 364 996147200 4194304 4520092 548682068832 18446744073709551615 269028092762 0 2 4096 73728 18446744071563181037 0 0 17 1 0 0
/proc/24487/statm: 11893 364 245 79 0 219 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 47572

Child status: 0
Real time (s): 0.885869
CPU time (s): 0.823874
CPU user time (s): 0.706892
CPU system time (s): 0.116982
CPU usage (%): 93.0018
Max. virtual memory (cumulated for all children) (KiB): 47572

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.706892
system time used= 0.116982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16168
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 885
involuntary context switches= 876

runsolver used 0.004999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node26 at 2008-07-05 18:04:25
IDJOB=1091111
IDBENCH=58527
IDSOLVER=351
FILE ID=node26/1091111-1215273865
PBS_JOBID= 7882224
Free space on /tmp= 66464 MiB

SOLVER NAME= galac E
BENCH NAME= CPAI08/csp/graphColoring/mug/normalized-mug100-25-3.xml
COMMAND LINE= HOME/galacE.sh BENCHNAME 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1091111-1215273865/watcher-1091111-1215273865 -o /tmp/evaluation-result-1091111-1215273865/solver-1091111-1215273865 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/galacE.sh HOME/instance-1091111-1215273865.xml 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 52c2aac1c138c2847f879db9d7cfc816
RANDOM SEED=1001113963

node26.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		: 3000.221
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		: 3000.221
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:       1629912 kB
Buffers:         39864 kB
Cached:         194388 kB
SwapCached:      49444 kB
Active:         287148 kB
Inactive:        86504 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1629912 kB
SwapTotal:     4192956 kB
SwapFree:      4137340 kB
Dirty:            3124 kB
Writeback:           0 kB
Mapped:         152968 kB
Slab:            37552 kB
Committed_AS:  2568744 kB
PageTables:       2008 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= 66460 MiB
End job on node26 at 2008-07-05 18:04:26