Trace number 2074409

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 11.4203 11.5301

DiagnosticValue
ASSIGNMENTS56196

General information on the benchmark

Namecsp/
chessboardColoration/normalized-cc-7-7-2.xml
MD5SUM1f8c8222dee021c25c644cdfea44a70e
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 benchmark0.294954
Satisfiable
(Un)Satisfiability was proved
Number of variables49
Number of constraints441
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension441
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.00/0.02	c Seed is 925094388
0.00/0.02	c Constructing HOME/instance-2074409-1247712389.xml  with 8085 constraints
0.00/0.06	c Solving 56196 backtracks 18 restarts
11.38/11.52	s UNSATISFIABLE
11.38/11.52	d ASSIGNMENTS 56196

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-2074409-1247712389/watcher-2074409-1247712389 -o /tmp/evaluation-result-2074409-1247712389/solver-2074409-1247712389 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 925094388 HOME/instance-2074409-1247712389.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: 2.05 2.04 2.02 4/81 18029
/proc/meminfo: memFree=1542912/2055920 swapFree=4192812/4192956
[pid=18029] ppid=18027 vsize=5356 CPUtime=0
/proc/18029/stat : 18029 (pcssolve) R 18027 18029 17399 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 58301619 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 271638391455 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/18029/statm: 1339 241 200 169 0 50 0
[pid=18030] ppid=18029 vsize=5356 CPUtime=0
/proc/18030/stat : 18030 (pcssolve) R 18029 18029 17399 0 -1 4194368 22 0 0 0 0 0 0 0 22 0 1 0 58301620 5484544 243 996147200 4194304 4889804 548682068800 18446744073709551615 271638392103 0 0 4096 0 0 0 0 17 1 0 0
/proc/18030/statm: 1339 243 202 169 0 50 0
[pid=18031] ppid=18029 vsize=5356 CPUtime=0
/proc/18031/stat : 18031 (pcssolve) R 18029 18029 17399 0 -1 4194368 0 0 0 0 0 0 0 0 21 0 1 0 58301620 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 271638391455 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/18031/statm: 1339 241 200 169 0 50 0

[startup+0.096586 s]
/proc/loadavg: 2.05 2.04 2.02 4/81 18029
/proc/meminfo: memFree=1542912/2055920 swapFree=4192812/4192956
[pid=18029] ppid=18027 vsize=6040 CPUtime=0.07
/proc/18029/stat : 18029 (pcs.small) R 18027 18029 17399 0 -1 4194304 1267 822 0 0 7 0 0 0 24 0 1 0 58301619 6184960 843 996147200 134512640 135095119 4294956304 18446744073709551615 134590379 0 0 4096 0 0 0 0 17 1 0 0
/proc/18029/statm: 1510 843 387 142 0 464 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6040

[startup+0.102582 s]
/proc/loadavg: 2.05 2.04 2.02 4/81 18029
/proc/meminfo: memFree=1542912/2055920 swapFree=4192812/4192956
[pid=18029] ppid=18027 vsize=6040 CPUtime=0.08
/proc/18029/stat : 18029 (pcs.small) R 18027 18029 17399 0 -1 4194304 1267 822 0 0 8 0 0 0 24 0 1 0 58301619 6184960 843 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 1 0 0
/proc/18029/statm: 1510 843 387 142 0 464 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6040

[startup+0.302605 s]
/proc/loadavg: 2.05 2.04 2.02 4/81 18029
/proc/meminfo: memFree=1542912/2055920 swapFree=4192812/4192956
[pid=18029] ppid=18027 vsize=6636 CPUtime=0.28
/proc/18029/stat : 18029 (pcs.small) R 18027 18029 17399 0 -1 4194304 1387 822 0 0 28 0 0 0 25 0 1 0 58301619 6795264 898 996147200 134512640 135095119 4294956304 18446744073709551615 134642950 0 0 4096 0 0 0 0 17 1 0 0
/proc/18029/statm: 1659 898 387 142 0 613 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6636

[startup+0.701646 s]
/proc/loadavg: 2.05 2.04 2.02 4/81 18029
/proc/meminfo: memFree=1542912/2055920 swapFree=4192812/4192956
[pid=18029] ppid=18027 vsize=6748 CPUtime=0.68
/proc/18029/stat : 18029 (pcs.small) R 18027 18029 17399 0 -1 4194304 1450 822 0 0 68 0 0 0 25 0 1 0 58301619 6909952 961 996147200 134512640 135095119 4294956304 18446744073709551615 134617070 0 0 4096 0 0 0 0 17 1 0 0
/proc/18029/statm: 1687 961 387 142 0 641 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 6748

[startup+1.50173 s]
/proc/loadavg: 2.05 2.04 2.02 3/82 18035
/proc/meminfo: memFree=1540280/2055920 swapFree=4192812/4192956
[pid=18029] ppid=18027 vsize=7308 CPUtime=1.47
/proc/18029/stat : 18029 (pcs.small) R 18027 18029 17399 0 -1 4194304 1612 822 0 0 147 0 0 0 25 0 1 0 58301619 7483392 1123 996147200 134512640 135095119 4294956304 18446744073709551615 134617072 0 0 4096 0 0 0 0 17 1 0 0
/proc/18029/statm: 1827 1123 387 142 0 781 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 7308

[startup+3.10189 s]
/proc/loadavg: 2.05 2.04 2.02 3/82 18035
/proc/meminfo: memFree=1538872/2055920 swapFree=4192812/4192956
[pid=18029] ppid=18027 vsize=8796 CPUtime=3.06
/proc/18029/stat : 18029 (pcs.small) R 18027 18029 17399 0 -1 4194304 2042 822 0 0 306 0 0 0 25 0 1 0 58301619 9007104 1424 996147200 134512640 135095119 4294956304 18446744073709551615 134589545 0 0 4096 0 0 0 0 17 1 0 0
/proc/18029/statm: 2199 1424 387 142 0 1153 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 8796

[startup+6.30122 s]
/proc/loadavg: 2.04 2.04 2.02 3/82 18035
/proc/meminfo: memFree=1535800/2055920 swapFree=4192812/4192956
[pid=18029] ppid=18027 vsize=12104 CPUtime=6.22
/proc/18029/stat : 18029 (pcs.small) R 18027 18029 17399 0 -1 4194304 3037 822 0 0 622 0 0 0 25 0 1 0 58301619 12394496 2129 996147200 134512640 135095119 4294956304 18446744073709551615 7323085 0 0 4096 0 0 0 0 17 1 0 0
/proc/18029/statm: 3026 2129 387 142 0 1980 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 12104

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

[startup+9.50155 s]
/proc/loadavg: 2.04 2.04 2.02 3/82 18035
/proc/meminfo: memFree=1533816/2055920 swapFree=4192812/4192956
[pid=18029] ppid=18027 vsize=14140 CPUtime=9.39
/proc/18029/stat : 18029 (pcs.small) R 18027 18029 17399 0 -1 4194304 3660 822 0 0 939 0 0 0 25 0 1 0 58301619 14479360 2752 996147200 134512640 135095119 4294956304 18446744073709551615 134632532 0 0 4096 0 0 0 0 17 1 0 0
/proc/18029/statm: 3535 2752 387 142 0 2489 0
Current children cumulated CPU time (s) 9.39
Current children cumulated vsize (KiB) 14140

[startup+10.3016 s]
/proc/loadavg: 2.04 2.03 2.02 3/82 18035
/proc/meminfo: memFree=1532984/2055920 swapFree=4192812/4192956
[pid=18029] ppid=18027 vsize=14588 CPUtime=10.18
/proc/18029/stat : 18029 (pcs.small) R 18027 18029 17399 0 -1 4194304 3806 822 0 0 1018 0 0 0 25 0 1 0 58301619 14938112 2898 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 1 0 0
/proc/18029/statm: 3647 2898 387 142 0 2601 0
Current children cumulated CPU time (s) 10.18
Current children cumulated vsize (KiB) 14588

[startup+11.1017 s]
/proc/loadavg: 2.04 2.03 2.02 3/82 18035
/proc/meminfo: memFree=1532088/2055920 swapFree=4192812/4192956
[pid=18029] ppid=18027 vsize=15036 CPUtime=10.98
/proc/18029/stat : 18029 (pcs.small) R 18027 18029 17399 0 -1 4194304 3957 822 0 0 1097 1 0 0 25 0 1 0 58301619 15396864 3049 996147200 134512640 135095119 4294956304 18446744073709551615 134593472 0 0 4096 0 0 0 0 17 1 0 0
/proc/18029/statm: 3759 3049 387 142 0 2713 0
Current children cumulated CPU time (s) 10.98
Current children cumulated vsize (KiB) 15036

[startup+11.5018 s]
/proc/loadavg: 2.04 2.03 2.02 3/82 18035
/proc/meminfo: memFree=1532088/2055920 swapFree=4192812/4192956
[pid=18029] ppid=18027 vsize=13208 CPUtime=11.38
/proc/18029/stat : 18029 (pcs.small) R 18027 18029 17399 0 -1 4194304 4027 822 0 0 1137 1 0 0 25 0 1 0 58301619 13524992 2616 996147200 134512640 135095119 4294956304 18446744073709551615 4159336992 0 0 4096 0 0 0 0 17 1 0 0
/proc/18029/statm: 3302 2616 387 142 0 2256 0
Current children cumulated CPU time (s) 11.38
Current children cumulated vsize (KiB) 13208

Child status: 0
Real time (s): 11.5301
CPU time (s): 11.4203
CPU user time (s): 11.4003
CPU system time (s): 0.019996
CPU usage (%): 99.0476
Max. virtual memory (cumulated for all children) (KiB): 15148

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 11.4003
system time used= 0.019996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4851
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= 21
involuntary context switches= 484

runsolver used 0.019996 second user time and 0.037994 second system time

The end

Launcher Data 

Begin job on node67 at 2009-07-16 04:46:29
IDJOB=2074409
IDBENCH=56099
IDSOLVER=733
FILE ID=node67/2074409-1247712389
PBS_JOBID= 9521408
Free space on /tmp= 66332 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-7-7-2.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2074409-1247712389/watcher-2074409-1247712389 -o /tmp/evaluation-result-2074409-1247712389/solver-2074409-1247712389 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 925094388 HOME/instance-2074409-1247712389.xml

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

MD5SUM BENCH= 1f8c8222dee021c25c644cdfea44a70e
RANDOM SEED=925094388

node67.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		: 3000.239
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		: 3000.239
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:       1543392 kB
Buffers:         67768 kB
Cached:         260128 kB
SwapCached:          0 kB
Active:         179064 kB
Inactive:       259464 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1543392 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2136 kB
Writeback:           0 kB
Mapped:         130988 kB
Slab:            58824 kB
Committed_AS:   651400 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= 66332 MiB
End job on node67 at 2009-07-16 04:46:40