Trace number 2074387

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
pcs 0.3.2UNSAT 15.9136 16.0707

DiagnosticValue
ASSIGNMENTS85602

General information on the benchmark

Namecsp/
chessboardColoration/normalized-cc-6-6-2.xml
MD5SUM6d331089ced3fa3643a4429b2fd23353
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 benchmark0.18897
Satisfiable
(Un)Satisfiability was proved
Number of variables36
Number of constraints225
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension225
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.00/0.02	c Seed is 664191716
0.00/0.02	c Constructing HOME/instance-2074387-1247712378.xml  with 4185 constraints
0.00/0.04	c Solving 85602 backtracks 19 restarts
15.83/16.07	s UNSATISFIABLE
15.83/16.07	d ASSIGNMENTS 85602

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2074387-1247712378/watcher-2074387-1247712378 -o /tmp/evaluation-result-2074387-1247712378/solver-2074387-1247712378 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 664191716 HOME/instance-2074387-1247712378.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): 2000 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


[startup+0 s]
/proc/loadavg: 2.03 2.03 2.00 4/81 11616
/proc/meminfo: memFree=1453128/2055920 swapFree=4192812/4192956
[pid=11616] ppid=11614 vsize=5356 CPUtime=0
/proc/11616/stat : 11616 (pcssolve) R 11614 11616 10722 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 58300886 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 271894243999 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/11616/statm: 1339 241 200 169 0 50 0
[pid=11617] ppid=11616 vsize=3544 CPUtime=0
/proc/11617/stat : 11617 (fgrep) R 11616 11616 10722 0 -1 4194304 103 0 0 0 0 0 0 0 22 0 1 0 58300886 3629056 70 996147200 4194304 4274172 548682068976 18446744073709551615 271894674842 0 0 4096 0 0 0 0 17 1 0 0
/proc/11617/statm: 886 70 53 19 0 10 0

[startup+0.0835209 s]
/proc/loadavg: 2.03 2.03 2.00 4/81 11616
/proc/meminfo: memFree=1453128/2055920 swapFree=4192812/4192956
[pid=11616] ppid=11614 vsize=5376 CPUtime=0.06
/proc/11616/stat : 11616 (pcs.small) R 11614 11616 10722 0 -1 4194304 1086 819 0 0 6 0 0 0 25 0 1 0 58300886 5505024 662 996147200 134512640 135095119 4294956304 18446744073709551615 134615450 0 0 4096 0 0 0 0 17 1 0 0
/proc/11616/statm: 1344 662 387 142 0 298 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5376

[startup+0.101522 s]
/proc/loadavg: 2.03 2.03 2.00 4/81 11616
/proc/meminfo: memFree=1453128/2055920 swapFree=4192812/4192956
[pid=11616] ppid=11614 vsize=5376 CPUtime=0.07
/proc/11616/stat : 11616 (pcs.small) R 11614 11616 10722 0 -1 4194304 1088 819 0 0 7 0 0 0 25 0 1 0 58300886 5505024 664 996147200 134512640 135095119 4294956304 18446744073709551615 134840860 0 0 4096 0 0 0 0 17 1 0 0
/proc/11616/statm: 1344 664 387 142 0 298 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5376

[startup+0.301544 s]
/proc/loadavg: 2.03 2.03 2.00 4/81 11616
/proc/meminfo: memFree=1453128/2055920 swapFree=4192812/4192956
[pid=11616] ppid=11614 vsize=5496 CPUtime=0.27
/proc/11616/stat : 11616 (pcs.small) R 11614 11616 10722 0 -1 4194304 1127 819 0 0 27 0 0 0 25 0 1 0 58300886 5627904 703 996147200 134512640 135095119 4294956304 18446744073709551615 134589681 0 0 4096 0 0 0 0 17 1 0 0
/proc/11616/statm: 1374 703 387 142 0 328 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 5496

[startup+0.701582 s]
/proc/loadavg: 2.03 2.03 2.00 4/81 11616
/proc/meminfo: memFree=1453128/2055920 swapFree=4192812/4192956
[pid=11616] ppid=11614 vsize=5856 CPUtime=0.67
/proc/11616/stat : 11616 (pcs.small) R 11614 11616 10722 0 -1 4194304 1219 819 0 0 67 0 0 0 25 0 1 0 58300886 5996544 795 996147200 134512640 135095119 4294956304 18446744073709551615 134842745 0 0 4096 0 0 0 0 17 1 0 0
/proc/11616/statm: 1464 795 387 142 0 418 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 5856

[startup+1.50166 s]
/proc/loadavg: 2.03 2.03 2.00 3/82 11622
/proc/meminfo: memFree=1450944/2055920 swapFree=4192812/4192956
[pid=11616] ppid=11614 vsize=6736 CPUtime=1.46
/proc/11616/stat : 11616 (pcs.small) R 11614 11616 10722 0 -1 4194304 1477 819 0 0 146 0 0 0 25 0 1 0 58300886 6897664 988 996147200 134512640 135095119 4294956304 18446744073709551615 134839502 0 0 4096 0 0 0 0 17 1 0 0
/proc/11616/statm: 1684 988 387 142 0 638 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 6736

[startup+3.10182 s]
/proc/loadavg: 2.03 2.03 2.00 3/82 11622
/proc/meminfo: memFree=1449920/2055920 swapFree=4192812/4192956
[pid=11616] ppid=11614 vsize=8376 CPUtime=3.05
/proc/11616/stat : 11616 (pcs.small) R 11614 11616 10722 0 -1 4194304 1977 819 0 0 305 0 0 0 25 0 1 0 58300886 8577024 1359 996147200 134512640 135095119 4294956304 18446744073709551615 134554976 0 0 4096 0 0 0 0 17 1 0 0
/proc/11616/statm: 2094 1359 387 142 0 1048 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 8376

[startup+6.30213 s]
/proc/loadavg: 2.03 2.03 2.00 3/82 11622
/proc/meminfo: memFree=1445824/2055920 swapFree=4192812/4192956
[pid=11616] ppid=11614 vsize=12028 CPUtime=6.22
/proc/11616/stat : 11616 (pcs.small) R 11614 11616 10722 0 -1 4194304 3024 819 0 0 621 1 0 0 25 0 1 0 58300886 12316672 2149 996147200 134512640 135095119 4294956304 18446744073709551615 134839502 0 0 4096 0 0 0 0 17 1 0 0
/proc/11616/statm: 3007 2149 387 142 0 1961 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 12028

[startup+12.7018 s]
/proc/loadavg: 2.02 2.03 2.00 3/82 11622
/proc/meminfo: memFree=1439232/2055920 swapFree=4192812/4192956
[pid=11616] ppid=11614 vsize=19452 CPUtime=12.56
/proc/11616/stat : 11616 (pcs.small) R 11614 11616 10722 0 -1 4194304 5185 819 0 0 1253 3 0 0 25 0 1 0 58300886 19918848 3764 996147200 134512640 135095119 4294956304 18446744073709551615 134882936 0 0 4096 0 0 0 0 17 1 0 0
/proc/11616/statm: 4863 3764 387 142 0 3817 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 19452

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

[startup+14.3069 s]
/proc/loadavg: 2.02 2.03 2.00 3/82 11622
/proc/meminfo: memFree=1438976/2055920 swapFree=4192812/4192956
[pid=11616] ppid=11614 vsize=19692 CPUtime=14.15
/proc/11616/stat : 11616 (pcs.small) R 11614 11616 10722 0 -1 4194304 5303 819 0 0 1412 3 0 0 25 0 1 0 58300886 20164608 3882 996147200 134512640 135095119 4294956304 18446744073709551615 134617017 0 0 4096 0 0 0 0 17 1 0 0
/proc/11616/statm: 4923 3882 387 142 0 3877 0
Current children cumulated CPU time (s) 14.15
Current children cumulated vsize (KiB) 19692

[startup+15.103 s]
/proc/loadavg: 2.02 2.03 2.00 3/82 11622
/proc/meminfo: memFree=1438976/2055920 swapFree=4192812/4192956
[pid=11616] ppid=11614 vsize=20172 CPUtime=14.94
/proc/11616/stat : 11616 (pcs.small) R 11614 11616 10722 0 -1 4194304 5443 819 0 0 1491 3 0 0 25 0 1 0 58300886 20656128 4022 996147200 134512640 135095119 4294956304 18446744073709551615 5975714 0 0 4096 0 0 0 0 17 1 0 0
/proc/11616/statm: 5043 4022 387 142 0 3997 0
Current children cumulated CPU time (s) 14.94
Current children cumulated vsize (KiB) 20172

[startup+15.502 s]
/proc/loadavg: 2.02 2.03 2.00 3/82 11622
/proc/meminfo: memFree=1438208/2055920 swapFree=4192812/4192956
[pid=11616] ppid=11614 vsize=20412 CPUtime=15.33
/proc/11616/stat : 11616 (pcs.small) R 11614 11616 10722 0 -1 4194304 5520 819 0 0 1530 3 0 0 25 0 1 0 58300886 20901888 4099 996147200 134512640 135095119 4294956304 18446744073709551615 134615598 0 0 4096 0 0 0 0 17 1 0 0
/proc/11616/statm: 5103 4099 387 142 0 4057 0
Current children cumulated CPU time (s) 15.33
Current children cumulated vsize (KiB) 20412

[startup+15.9011 s]
/proc/loadavg: 2.02 2.03 2.00 3/82 11622
/proc/meminfo: memFree=1438208/2055920 swapFree=4192812/4192956
[pid=11616] ppid=11614 vsize=20652 CPUtime=15.73
/proc/11616/stat : 11616 (pcs.small) R 11614 11616 10722 0 -1 4194304 5597 819 0 0 1570 3 0 0 25 0 1 0 58300886 21147648 4176 996147200 134512640 135095119 4294956304 18446744073709551615 134571109 0 0 4096 0 0 0 0 17 1 0 0
/proc/11616/statm: 5163 4176 387 142 0 4117 0
Current children cumulated CPU time (s) 15.73
Current children cumulated vsize (KiB) 20652

[startup+16.0011 s]
/proc/loadavg: 2.02 2.03 2.00 3/82 11622
/proc/meminfo: memFree=1438208/2055920 swapFree=4192812/4192956
[pid=11616] ppid=11614 vsize=20652 CPUtime=15.83
/proc/11616/stat : 11616 (pcs.small) R 11614 11616 10722 0 -1 4194304 5616 819 0 0 1580 3 0 0 25 0 1 0 58300886 21147648 4195 996147200 134512640 135095119 4294956304 18446744073709551615 134587131 0 0 4096 0 0 0 0 17 1 0 0
/proc/11616/statm: 5163 4195 387 142 0 4117 0
Current children cumulated CPU time (s) 15.83
Current children cumulated vsize (KiB) 20652

Child status: 0
Real time (s): 16.0707
CPU time (s): 15.9136
CPU user time (s): 15.8686
CPU system time (s): 0.044993
CPU usage (%): 99.0224
Max. virtual memory (cumulated for all children) (KiB): 20652

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.8686
system time used= 0.044993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6437
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= 22
involuntary context switches= 663

runsolver used 0.015997 second user time and 0.06199 second system time

The end

Launcher Data 

Begin job on node60 at 2009-07-16 04:46:19
IDJOB=2074387
IDBENCH=56094
IDSOLVER=733
FILE ID=node60/2074387-1247712378
PBS_JOBID= 9521351
Free space on /tmp= 66428 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-6-6-2.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2074387-1247712378/watcher-2074387-1247712378 -o /tmp/evaluation-result-2074387-1247712378/solver-2074387-1247712378 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 664191716 HOME/instance-2074387-1247712378.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 6d331089ced3fa3643a4429b2fd23353
RANDOM SEED=664191716

node60.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:       1453608 kB
Buffers:         72468 kB
Cached:         364772 kB
SwapCached:          0 kB
Active:         148636 kB
Inactive:       369944 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1453608 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1872 kB
Writeback:           0 kB
Mapped:         101756 kB
Slab:            68564 kB
Committed_AS:   635636 kB
PageTables:       2072 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= 66428 MiB
End job on node60 at 2009-07-16 04:46:35