Trace number 1071429

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
Mistral-prime 1.313UNSAT 14.1069 14.251

DiagnosticValue
ASSIGNMENTS2290
CHECKS5212680

General information on the benchmark

Namecsp/chessboardColoration/
normalized-cc-20-20-2.xml
MD5SUM2344aea19d376a2dc3bf2408a1b627e6
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 benchmark12.7501
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of constraints36100
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension36100
Global constraints used (with number of constraints)

Solver Data (download as text)

0.09/0.10	c mistral-prime version 1.313
13.85/14.02	s UNSATISFIABLE
13.85/14.02	d CHECKS 5212678
13.85/14.02	d ASSIGNMENTS 2290

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-1071429-1215169047/watcher-1071429-1215169047 -o /tmp/evaluation-result-1071429-1215169047/solver-1071429-1215169047 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1071429-1215169047.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: 2.05 2.05 2.01 4/82 23805
/proc/meminfo: memFree=1049348/2055920 swapFree=4179028/4192956
[pid=23805] ppid=23803 vsize=816 CPUtime=0
/proc/23805/stat : 23805 (xsolve) R 23803 23805 22341 0 -1 4194304 39 0 0 0 0 0 0 0 19 0 1 0 1995877673 835584 25 996147200 134512640 135237403 4294956240 18446744073709551615 8921892 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/23805/statm: 204 25 19 176 0 3 0

[startup+0.0581341 s]
/proc/loadavg: 2.05 2.05 2.01 4/82 23805
/proc/meminfo: memFree=1049348/2055920 swapFree=4179028/4192956
[pid=23805] ppid=23803 vsize=4976 CPUtime=0.04
/proc/23805/stat : 23805 (xsolve) R 23803 23805 22341 0 -1 4194304 569 0 0 0 4 0 0 0 19 0 1 0 1995877673 5095424 535 996147200 134512640 135237403 4294956240 18446744073709551615 9354922 0 0 4096 0 0 0 0 17 1 0 0
/proc/23805/statm: 1244 535 371 176 0 148 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 4976

[startup+0.102136 s]
/proc/loadavg: 2.05 2.05 2.01 4/82 23805
/proc/meminfo: memFree=1049348/2055920 swapFree=4179028/4192956
[pid=23805] ppid=23803 vsize=5360 CPUtime=0.09
/proc/23805/stat : 23805 (xsolve) R 23803 23805 22341 0 -1 4194304 648 0 0 0 9 0 0 0 19 0 1 0 1995877673 5488640 614 996147200 134512640 135237403 4294956240 18446744073709551615 9038964 0 0 4096 0 0 0 0 17 1 0 0
/proc/23805/statm: 1340 614 371 176 0 244 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5360

[startup+0.302164 s]
/proc/loadavg: 2.05 2.05 2.01 4/82 23805
/proc/meminfo: memFree=1049348/2055920 swapFree=4179028/4192956
[pid=23805] ppid=23803 vsize=6776 CPUtime=0.28
/proc/23805/stat : 23805 (xsolve) R 23803 23805 22341 0 -1 4194304 1003 0 0 0 28 0 0 0 21 0 1 0 1995877673 6938624 969 996147200 134512640 135237403 4294956240 18446744073709551615 134680470 0 0 4096 0 0 0 0 17 1 0 0
/proc/23805/statm: 1694 969 371 176 0 598 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6776

[startup+0.701198 s]
/proc/loadavg: 2.05 2.05 2.01 4/82 23805
/proc/meminfo: memFree=1049348/2055920 swapFree=4179028/4192956
[pid=23805] ppid=23803 vsize=9464 CPUtime=0.68
/proc/23805/stat : 23805 (xsolve) R 23803 23805 22341 0 -1 4194304 1656 0 0 0 67 1 0 0 25 0 1 0 1995877673 9691136 1622 996147200 134512640 135237403 4294956240 18446744073709551615 134614939 0 0 4096 0 0 0 0 17 1 0 0
/proc/23805/statm: 2366 1622 371 176 0 1270 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 9464

[startup+1.50128 s]
/proc/loadavg: 2.13 2.07 2.01 3/83 23806
/proc/meminfo: memFree=1042236/2055920 swapFree=4179028/4192956
[pid=23805] ppid=23803 vsize=14808 CPUtime=1.48
/proc/23805/stat : 23805 (xsolve) R 23803 23805 22341 0 -1 4194304 3006 0 0 0 146 2 0 0 25 0 1 0 1995877673 15163392 2972 996147200 134512640 135237403 4294956240 18446744073709551615 134886388 0 0 4096 0 0 0 0 17 1 0 0
/proc/23805/statm: 3702 2972 371 176 0 2606 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 14808

[startup+3.10144 s]
/proc/loadavg: 2.13 2.07 2.01 3/83 23806
/proc/meminfo: memFree=1034684/2055920 swapFree=4179028/4192956
[pid=23805] ppid=23803 vsize=53876 CPUtime=3.06
/proc/23805/stat : 23805 (xsolve) R 23803 23805 22341 0 -1 4194304 12739 0 0 0 299 7 0 0 25 0 1 0 1995877673 55169024 12573 996147200 134512640 135237403 4294956240 18446744073709551615 134818434 0 0 4096 0 0 0 0 17 1 0 0
/proc/23805/statm: 13469 12573 389 176 0 12373 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 53876

[startup+6.30176 s]
/proc/loadavg: 2.13 2.07 2.01 3/83 23806
/proc/meminfo: memFree=1000060/2055920 swapFree=4179028/4192956
[pid=23805] ppid=23803 vsize=53876 CPUtime=6.22
/proc/23805/stat : 23805 (xsolve) R 23803 23805 22341 0 -1 4194304 12739 0 0 0 615 7 0 0 25 0 1 0 1995877673 55169024 12573 996147200 134512640 135237403 4294956240 18446744073709551615 135101657 0 0 4096 0 0 0 0 17 1 0 0
/proc/23805/statm: 13469 12573 389 176 0 12373 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 53876

[startup+12.7014 s]
/proc/loadavg: 2.11 2.06 2.01 3/83 23806
/proc/meminfo: memFree=1000060/2055920 swapFree=4179028/4192956
[pid=23805] ppid=23803 vsize=53876 CPUtime=12.56
/proc/23805/stat : 23805 (xsolve) R 23803 23805 22341 0 -1 4194304 12739 0 0 0 1249 7 0 0 25 0 1 0 1995877673 55169024 12573 996147200 134512640 135237403 4294956240 18446744073709551615 134817977 0 0 4096 0 0 0 0 17 1 0 0
/proc/23805/statm: 13469 12573 389 176 0 12373 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 53876

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

[startup+13.5015 s]
/proc/loadavg: 2.11 2.06 2.01 3/83 23806
/proc/meminfo: memFree=1000060/2055920 swapFree=4179028/4192956
[pid=23805] ppid=23803 vsize=53876 CPUtime=13.35
/proc/23805/stat : 23805 (xsolve) R 23803 23805 22341 0 -1 4194304 12739 0 0 0 1328 7 0 0 25 0 1 0 1995877673 55169024 12573 996147200 134512640 135237403 4294956240 18446744073709551615 134543513 0 0 4096 0 0 0 0 17 1 0 0
/proc/23805/statm: 13469 12573 389 176 0 12373 0
Current children cumulated CPU time (s) 13.35
Current children cumulated vsize (KiB) 53876

[startup+13.9015 s]
/proc/loadavg: 2.11 2.06 2.01 3/83 23806
/proc/meminfo: memFree=1000060/2055920 swapFree=4179028/4192956
[pid=23805] ppid=23803 vsize=53876 CPUtime=13.75
/proc/23805/stat : 23805 (xsolve) R 23803 23805 22341 0 -1 4194304 12739 0 0 0 1368 7 0 0 25 0 1 0 1995877673 55169024 12573 996147200 134512640 135237403 4294956240 18446744073709551615 134543528 0 0 4096 0 0 0 0 17 1 0 0
/proc/23805/statm: 13469 12573 389 176 0 12373 0
Current children cumulated CPU time (s) 13.75
Current children cumulated vsize (KiB) 53876

[startup+14.1015 s]
/proc/loadavg: 2.11 2.06 2.01 3/83 23806
/proc/meminfo: memFree=1000060/2055920 swapFree=4179028/4192956
[pid=23805] ppid=23803 vsize=53588 CPUtime=13.95
/proc/23805/stat : 23805 (xsolve) R 23803 23805 22341 0 -1 4194304 12745 0 0 0 1388 7 0 0 25 0 1 0 1995877673 54874112 12542 996147200 134512640 135237403 4294956240 18446744073709551615 9351237 0 0 4096 0 0 0 0 17 1 0 0
/proc/23805/statm: 13397 12542 395 176 0 12301 0
Current children cumulated CPU time (s) 13.95
Current children cumulated vsize (KiB) 53588

[startup+14.2016 s]
/proc/loadavg: 2.11 2.06 2.01 3/83 23806
/proc/meminfo: memFree=1033532/2055920 swapFree=4179028/4192956
[pid=23805] ppid=23803 vsize=20020 CPUtime=14.05
/proc/23805/stat : 23805 (xsolve) R 23803 23805 22341 0 -1 4194304 12752 0 0 0 1397 8 0 0 25 0 1 0 1995877673 20500480 4210 996147200 134512640 135237403 4294956240 18446744073709551615 9352637 0 0 4096 0 0 0 0 17 1 0 0
/proc/23805/statm: 5005 4210 402 176 0 3909 0
Current children cumulated CPU time (s) 14.05
Current children cumulated vsize (KiB) 20020

Child status: 0
Real time (s): 14.251
CPU time (s): 14.1069
CPU user time (s): 14.0179
CPU system time (s): 0.088986
CPU usage (%): 98.9885
Max. virtual memory (cumulated for all children) (KiB): 53876

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 14.0179
system time used= 0.088986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 12755
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= 580

runsolver used 0.014997 second user time and 0.06099 second system time

The end

Launcher Data (download as text)

Begin job on node36 at 2008-07-04 12:57:28
IDJOB=1071429
IDBENCH=56087
IDSOLVER=358
FILE ID=node36/1071429-1215169047
PBS_JOBID= 7881489
Free space on /tmp= 66392 MiB

SOLVER NAME= Mistral-prime 1.313
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-20-20-2.xml
COMMAND LINE= HOME/xsolve BENCHNAME 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1071429-1215169047/watcher-1071429-1215169047 -o /tmp/evaluation-result-1071429-1215169047/solver-1071429-1215169047 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1071429-1215169047.xml 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 2344aea19d376a2dc3bf2408a1b627e6
RANDOM SEED=306731306

node36.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		: 3000.240
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:       1049828 kB
Buffers:         80664 kB
Cached:         476144 kB
SwapCached:       7932 kB
Active:         758744 kB
Inactive:       178432 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1049828 kB
SwapTotal:     4192956 kB
SwapFree:      4179028 kB
Dirty:            7224 kB
Writeback:           0 kB
Mapped:         397428 kB
Slab:            53312 kB
Committed_AS:  3681848 kB
PageTables:       2620 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= 66392 MiB
End job on node36 at 2008-07-04 12:57:42