Trace number 2084626

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
bpsolver 09UNSAT 19.0801 19.2522

General information on the benchmark

Namecsp/graphColoring/school/
normalized-school1-nsh-12.xml
MD5SUM2d1e316401a6d142c241b2ebac1fc85c
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 benchmark0.511921
Satisfiable
(Un)Satisfiability was proved
Number of variables352
Number of constraints14612
Maximum constraint arity2
Maximum domain size12
Number of constraints which are defined in extension0
Number of constraints which are defined in intension14612
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c bpsolver version 6.29.2009
0.00/0.02	c converting(HOME/instance-2084626-1247379326)
1.47/1.59	c Converted in 709 ms
1.67/1.78	c solving(HOME/instance-2084626-1247379326,1800000)
1.67/1.78	c solving(HOME/instance-2084626-1247379326,1800000)
19.02/19.24	c before_labeling
19.02/19.24	s UNSATISFIABLE
19.02/19.24	
19.02/19.24	
19.02/19.24	c Time=17496 ms Backtracks=0
19.02/19.24

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-2084626-1247379326/watcher-2084626-1247379326 -o /tmp/evaluation-result-2084626-1247379326/solver-2084626-1247379326 -C 1800 -W 2000 -M 900 HOME/solver HOME/instance-2084626-1247379326 1800 

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: 2.01 2.05 2.10 4/80 25160
/proc/meminfo: memFree=1652064/2055920 swapFree=4192812/4192956
[pid=25160] ppid=25158 vsize=5596 CPUtime=0
/proc/25160/stat : 25160 (bprolog) R 25158 25160 24833 0 -1 4194304 293 0 0 0 0 0 0 0 20 0 1 0 24999099 5730304 24 996147200 134512640 135105188 4294956096 18446744073709551615 8438059 0 0 4096 0 0 0 0 17 1 0 0
/proc/25160/statm: 1399 24 18 144 0 1229 0

[startup+0.171283 s]
/proc/loadavg: 2.01 2.05 2.10 4/80 25160
/proc/meminfo: memFree=1652064/2055920 swapFree=4192812/4192956
[pid=25160] ppid=25158 vsize=62208 CPUtime=0.16
/proc/25160/stat : 25160 (bprolog) R 25158 25160 24833 0 -1 4194304 1141 0 0 0 8 8 0 0 20 0 1 0 24999099 63700992 854 996147200 134512640 135105188 4294956096 18446744073709551615 134777665 0 0 4096 2 0 0 0 17 1 0 0
/proc/25160/statm: 15552 854 177 144 0 15036 0
Current children cumulated CPU time (s) 0.16
Current children cumulated vsize (KiB) 62208

[startup+0.201287 s]
/proc/loadavg: 2.01 2.05 2.10 4/80 25160
/proc/meminfo: memFree=1652064/2055920 swapFree=4192812/4192956
[pid=25160] ppid=25158 vsize=62208 CPUtime=0.19
/proc/25160/stat : 25160 (bprolog) R 25158 25160 24833 0 -1 4194304 1142 0 0 0 10 9 0 0 20 0 1 0 24999099 63700992 855 996147200 134512640 135105188 4294956096 18446744073709551615 134567770 0 0 4096 2 0 0 0 17 1 0 0
/proc/25160/statm: 15552 855 177 144 0 15036 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 62208

[startup+0.3013 s]
/proc/loadavg: 2.01 2.05 2.10 4/80 25160
/proc/meminfo: memFree=1652064/2055920 swapFree=4192812/4192956
[pid=25160] ppid=25158 vsize=62208 CPUtime=0.28
/proc/25160/stat : 25160 (bprolog) R 25158 25160 24833 0 -1 4194304 1145 0 0 0 13 15 0 0 21 0 1 0 24999099 63700992 858 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/25160/statm: 15552 858 177 144 0 15036 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 62208

[startup+0.701341 s]
/proc/loadavg: 2.01 2.05 2.10 4/80 25160
/proc/meminfo: memFree=1652064/2055920 swapFree=4192812/4192956
[pid=25160] ppid=25158 vsize=62208 CPUtime=0.68
/proc/25160/stat : 25160 (bprolog) R 25158 25160 24833 0 -1 4194304 1156 0 0 0 31 37 0 0 25 0 1 0 24999099 63700992 869 996147200 134512640 135105188 4294956096 18446744073709551615 134670937 0 0 4096 2 0 0 0 17 1 0 0
/proc/25160/statm: 15552 869 177 144 0 15036 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 62208

[startup+1.50243 s]
/proc/loadavg: 2.01 2.05 2.10 3/81 25161
/proc/meminfo: memFree=1648728/2055920 swapFree=4192812/4192956
[pid=25160] ppid=25158 vsize=62208 CPUtime=1.47
/proc/25160/stat : 25160 (bprolog) R 25158 25160 24833 0 -1 4194304 1178 0 0 0 68 79 0 0 25 0 1 0 24999099 63700992 891 996147200 134512640 135105188 4294956096 18446744073709551615 134574257 0 0 4096 2 0 0 0 17 1 0 0
/proc/25160/statm: 15552 891 177 144 0 15036 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 62208

[startup+3.1016 s]
/proc/loadavg: 2.01 2.05 2.09 3/81 25161
/proc/meminfo: memFree=1639640/2055920 swapFree=4192812/4192956
[pid=25160] ppid=25158 vsize=74508 CPUtime=3.06
/proc/25160/stat : 25160 (bprolog) R 25158 25160 24833 0 -1 4194304 3353 0 0 0 221 85 0 0 25 0 1 0 24999099 76296192 3061 996147200 134512640 135105188 4294956096 18446744073709551615 134603841 0 0 4096 2 0 0 0 17 1 0 0
/proc/25160/statm: 18627 3061 184 144 0 18111 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 74508

[startup+6.30195 s]
/proc/loadavg: 2.01 2.05 2.09 3/81 25161
/proc/meminfo: memFree=1639192/2055920 swapFree=4192812/4192956
[pid=25160] ppid=25158 vsize=74640 CPUtime=6.23
/proc/25160/stat : 25160 (bprolog) R 25158 25160 24833 0 -1 4194304 3436 0 0 0 538 85 0 0 25 0 1 0 24999099 76431360 3144 996147200 134512640 135105188 4294956096 18446744073709551615 134684454 0 0 4096 2 0 0 0 17 1 0 0
/proc/25160/statm: 18660 3144 186 144 0 18144 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 74640

[startup+12.7016 s]
/proc/loadavg: 2.01 2.05 2.09 3/81 25161
/proc/meminfo: memFree=1639128/2055920 swapFree=4192812/4192956
[pid=25160] ppid=25158 vsize=74640 CPUtime=12.57
/proc/25160/stat : 25160 (bprolog) R 25158 25160 24833 0 -1 4194304 3436 0 0 0 1172 85 0 0 25 0 1 0 24999099 76431360 3144 996147200 134512640 135105188 4294956096 18446744073709551615 134800746 0 0 4096 2 0 0 0 17 1 0 0
/proc/25160/statm: 18660 3144 186 144 0 18144 0
Current children cumulated CPU time (s) 12.57
Current children cumulated vsize (KiB) 74640

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

[startup+12.8017 s]
/proc/loadavg: 2.01 2.05 2.09 3/81 25161
/proc/meminfo: memFree=1639128/2055920 swapFree=4192812/4192956
[pid=25160] ppid=25158 vsize=74640 CPUtime=12.67
/proc/25160/stat : 25160 (bprolog) R 25158 25160 24833 0 -1 4194304 3436 0 0 0 1182 85 0 0 25 0 1 0 24999099 76431360 3144 996147200 134512640 135105188 4294956096 18446744073709551615 134684258 0 0 4096 2 0 0 0 17 1 0 0
/proc/25160/statm: 18660 3144 186 144 0 18144 0
Current children cumulated CPU time (s) 12.67
Current children cumulated vsize (KiB) 74640

[startup+16.002 s]
/proc/loadavg: 2.01 2.05 2.09 3/81 25161
/proc/meminfo: memFree=1639192/2055920 swapFree=4192812/4192956
[pid=25160] ppid=25158 vsize=74640 CPUtime=15.85
/proc/25160/stat : 25160 (bprolog) R 25158 25160 24833 0 -1 4194304 3436 0 0 0 1500 85 0 0 25 0 1 0 24999099 76431360 3144 996147200 134512640 135105188 4294956096 18446744073709551615 134800234 0 0 4096 2 0 0 0 17 1 0 0
/proc/25160/statm: 18660 3144 186 144 0 18144 0
Current children cumulated CPU time (s) 15.85
Current children cumulated vsize (KiB) 74640

[startup+17.6012 s]
/proc/loadavg: 2.01 2.05 2.09 3/81 25161
/proc/meminfo: memFree=1639192/2055920 swapFree=4192812/4192956
[pid=25160] ppid=25158 vsize=74640 CPUtime=17.44
/proc/25160/stat : 25160 (bprolog) R 25158 25160 24833 0 -1 4194304 3436 0 0 0 1659 85 0 0 25 0 1 0 24999099 76431360 3144 996147200 134512640 135105188 4294956096 18446744073709551615 134799874 0 0 4096 2 0 0 0 17 1 0 0
/proc/25160/statm: 18660 3144 186 144 0 18144 0
Current children cumulated CPU time (s) 17.44
Current children cumulated vsize (KiB) 74640

[startup+18.4023 s]
/proc/loadavg: 2.01 2.05 2.09 3/81 25161
/proc/meminfo: memFree=1639192/2055920 swapFree=4192812/4192956
[pid=25160] ppid=25158 vsize=74640 CPUtime=18.23
/proc/25160/stat : 25160 (bprolog) R 25158 25160 24833 0 -1 4194304 3436 0 0 0 1738 85 0 0 25 0 1 0 24999099 76431360 3144 996147200 134512640 135105188 4294956096 18446744073709551615 134800783 0 0 4096 2 0 0 0 17 1 0 0
/proc/25160/statm: 18660 3144 186 144 0 18144 0
Current children cumulated CPU time (s) 18.23
Current children cumulated vsize (KiB) 74640

[startup+18.8063 s]
/proc/loadavg: 2.01 2.05 2.09 3/81 25161
/proc/meminfo: memFree=1639192/2055920 swapFree=4192812/4192956
[pid=25160] ppid=25158 vsize=74640 CPUtime=18.63
/proc/25160/stat : 25160 (bprolog) R 25158 25160 24833 0 -1 4194304 3436 0 0 0 1778 85 0 0 25 0 1 0 24999099 76431360 3144 996147200 134512640 135105188 4294956096 18446744073709551615 134799918 0 0 4096 2 0 0 0 17 1 0 0
/proc/25160/statm: 18660 3144 186 144 0 18144 0
Current children cumulated CPU time (s) 18.63
Current children cumulated vsize (KiB) 74640

[startup+19.2013 s]
/proc/loadavg: 2.01 2.05 2.09 3/81 25161
/proc/meminfo: memFree=1639192/2055920 swapFree=4192812/4192956
[pid=25160] ppid=25158 vsize=74640 CPUtime=19.02
/proc/25160/stat : 25160 (bprolog) R 25158 25160 24833 0 -1 4194304 3436 0 0 0 1817 85 0 0 25 0 1 0 24999099 76431360 3144 996147200 134512640 135105188 4294956096 18446744073709551615 134800234 0 0 4096 2 0 0 0 17 1 0 0
/proc/25160/statm: 18660 3144 186 144 0 18144 0
Current children cumulated CPU time (s) 19.02
Current children cumulated vsize (KiB) 74640

Child status: 0
Real time (s): 19.2522
CPU time (s): 19.0801
CPU user time (s): 18.2202
CPU system time (s): 0.859869
CPU usage (%): 99.106
Max. virtual memory (cumulated for all children) (KiB): 74640

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 18.2202
system time used= 0.859869
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3439
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= 4
involuntary context switches= 460

runsolver used 0.015997 second user time and 0.06299 second system time

The end

Launcher Data 

Begin job on node21 at 2009-07-12 08:15:26
IDJOB=2084626
IDBENCH=58096
IDSOLVER=770
FILE ID=node21/2084626-1247379326
PBS_JOBID= 9507188
Free space on /tmp= 66404 MiB

SOLVER NAME= bpsolver 09
BENCH NAME= CPAI08/csp/graphColoring/school/normalized-school1-nsh-12.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2084626-1247379326/watcher-2084626-1247379326 -o /tmp/evaluation-result-2084626-1247379326/solver-2084626-1247379326 -C 1800 -W 2000 -M 900  HOME/solver HOME/instance-2084626-1247379326 1800

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

MD5SUM BENCH= 2d1e316401a6d142c241b2ebac1fc85c
RANDOM SEED=1796920021

node21.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:       1652544 kB
Buffers:          6416 kB
Cached:          57572 kB
SwapCached:          0 kB
Active:         334204 kB
Inactive:        17200 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1652544 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3056 kB
Writeback:           0 kB
Mapped:         305260 kB
Slab:            36660 kB
Committed_AS:   914044 kB
PageTables:       2300 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= 66404 MiB
End job on node21 at 2009-07-12 08:15:46