Trace number 218912

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
Tramontane 2006-12-04UNSAT 7.00793 7.01485

General information on the benchmark

NamechessboardColoration/
cc-12-12-2.xml
MD5SUM7fe04cc5f7e36d93c076012093d524a8
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.426934
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables144
Number of constraints4356
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension4356
Global constraints used (with number of constraints)

Solver Data (download as text)

0.01	c 
0.01	c Parsing xml file
0.01	c 	domains...............    0
0.01	c 	variables.............    0
0.01	c 	predicates............    0
0.01	c 	constraints........... 0.41
0.43	c Allocating memory
0.43	c 
0.43	c time limit = -1
0.43	c heuristic = dom/wdeg
0.43	c restart policy = Geometric increment
0.43	c restart base = 95
0.43	c restart factor = 1.33
0.43	c 
0.43	c Solving
0.43	c
7.00	s UNSATISFIABLE
7.00	d        UNSAT     13900 BTS       6.5 s

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node10/watcher-218912-1168253681 -o ROOT/results/node10/solver-218912-1168253681 -C 1800 -M 900 /tmp/evaluation/218912-1168253681/tramontane/bin/solver /tmp/evaluation/218912-1168253681/unknown.xml -res geom -f 3 -v 1 

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: 1.81 1.94 1.97 5/87 8052
/proc/meminfo: memFree=1614400/2055920 swapFree=4178216/4192956
[pid=8051] ppid=8049 vsize=6792 CPUtime=0
/proc/8051/stat : 8051 (solver) R 8049 8051 7624 0 -1 4194304 421 0 0 0 0 0 0 0 18 0 1 0 173763385 6955008 400 18446744073709551615 134512640 134893233 4294956640 18446744073709551615 8874872 0 0 4096 0 0 0 0 17 1 0 0
/proc/8051/statm: 1698 402 363 92 0 30 0

[startup+0.108627 s]
/proc/loadavg: 1.81 1.94 1.97 5/87 8052
/proc/meminfo: memFree=1614400/2055920 swapFree=4178216/4192956
[pid=8051] ppid=8049 vsize=7572 CPUtime=0.1
/proc/8051/stat : 8051 (solver) R 8049 8051 7624 0 -1 4194304 981 0 0 0 10 0 0 0 18 0 1 0 173763385 7753728 949 18446744073709551615 134512640 134893233 4294956640 18446744073709551615 9340539 0 0 4096 0 0 0 0 17 1 0 0
/proc/8051/statm: 1893 949 702 92 0 237 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 7572

[startup+0.519682 s]
/proc/loadavg: 1.81 1.94 1.97 5/87 8052
/proc/meminfo: memFree=1614400/2055920 swapFree=4178216/4192956
[pid=8051] ppid=8049 vsize=10368 CPUtime=0.5
/proc/8051/stat : 8051 (solver) R 8049 8051 7624 0 -1 4194304 1682 0 0 0 50 0 0 0 21 0 1 0 173763385 10616832 1650 18446744073709551615 134512640 134893233 4294956640 18446744073709551615 134712689 0 0 4096 0 0 0 0 17 1 0 0
/proc/8051/statm: 2592 1650 718 92 0 936 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 10368

[startup+1.3478 s]
/proc/loadavg: 1.81 1.94 1.97 3/87 8052
/proc/meminfo: memFree=1610752/2055920 swapFree=4178216/4192956
[pid=8051] ppid=8049 vsize=10368 CPUtime=1.33
/proc/8051/stat : 8051 (solver) R 8049 8051 7624 0 -1 4194304 1682 0 0 0 133 0 0 0 25 0 1 0 173763385 10616832 1650 18446744073709551615 134512640 134893233 4294956640 18446744073709551615 134637542 0 0 4096 0 0 0 0 17 1 0 0
/proc/8051/statm: 2592 1650 718 92 0 936 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 10368

[startup+2.98702 s]
/proc/loadavg: 1.81 1.94 1.97 3/87 8052
/proc/meminfo: memFree=1610752/2055920 swapFree=4178216/4192956
[pid=8051] ppid=8049 vsize=10368 CPUtime=2.97
/proc/8051/stat : 8051 (solver) R 8049 8051 7624 0 -1 4194304 1682 0 0 0 297 0 0 0 25 0 1 0 173763385 10616832 1650 18446744073709551615 134512640 134893233 4294956640 18446744073709551615 134812586 0 0 4096 0 0 0 0 17 1 0 0
/proc/8051/statm: 2592 1650 718 92 0 936 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 10368

[startup+6.26647 s]
/proc/loadavg: 1.83 1.94 1.97 3/87 8052
/proc/meminfo: memFree=1610688/2055920 swapFree=4178216/4192956
[pid=8051] ppid=8049 vsize=10368 CPUtime=6.26
/proc/8051/stat : 8051 (solver) R 8049 8051 7624 0 -1 4194304 1682 0 0 0 625 1 0 0 25 0 1 0 173763385 10616832 1650 18446744073709551615 134512640 134893233 4294956640 18446744073709551615 134727403 0 0 4096 0 0 0 0 17 1 0 0
/proc/8051/statm: 2592 1650 718 92 0 936 0
Current children cumulated CPU time (s) 6.26
Current children cumulated vsize (KiB) 10368

Child status: 0
Real time (s): 7.01485
CPU time (s): 7.00793
CPU user time (s): 6.99594
CPU system time (s): 0.011998
CPU usage (%): 99.9014
Max. virtual memory (cumulated for all children) (KiB): 10368

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.99594
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1690
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= 13
involuntary context switches= 208

runsolver used 0.008998 s user time and 0.027995 s system time

The end

Launcher Data (download as text)

Begin job on node10 on Mon Jan  8 10:54:42 UTC 2007


IDJOB= 218912
IDBENCH= 5265
FILE ID= node10/218912-1168253681

PBS_JOBID= 3481711

Free space on /tmp= 66370 MiB

BENCH NAME= HOME/pub/bench/CPAI06/chessboardColoration/cc-12-12-2.xml
COMMAND LINE= /tmp/evaluation/218912-1168253681/tramontane/bin/solver /tmp/evaluation/218912-1168253681/unknown.xml -res geom -f 3 -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-218912-1168253681 -o ROOT/results/node10/solver-218912-1168253681 -C 1800 -M 900  /tmp/evaluation/218912-1168253681/tramontane/bin/solver /tmp/evaluation/218912-1168253681/unknown.xml -res geom -f 3 -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  7fe04cc5f7e36d93c076012093d524a8

RANDOM SEED= 776604610

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		: 3000.232
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:       1615016 kB
Buffers:         60772 kB
Cached:         174600 kB
SwapCached:       2628 kB
Active:         254296 kB
Inactive:       131196 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1615016 kB
SwapTotal:     4192956 kB
SwapFree:      4178216 kB
Dirty:            4048 kB
Writeback:           0 kB
Mapped:         160204 kB
Slab:            40048 kB
Committed_AS:  4630664 kB
PageTables:       2452 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= 66370 MiB



End job on node10 on Mon Jan  8 10:54:50 UTC 2007