Trace number 2074274

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 1.545UNSAT 21.1668 21.3722

DiagnosticValue
ASSIGNMENTS2011
CHECKS7540820
NODES2011

General information on the benchmark

Namecsp/chessboardColoration/
normalized-cc-25-25-2.xml
MD5SUMb913279437ddb68d75e7e8e0397248e4
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 benchmark21.1668
Satisfiable
(Un)Satisfiability was proved
Number of variables625
Number of constraints90000
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension90000
Global constraints used (with number of constraints)

Solver Data 

0.18/0.20	c mistral version 1.545
20.59/20.88	s UNSATISFIABLE
20.59/20.88	d CHECKS 7540818
20.59/20.88	d ASSIGNMENTS 2011
20.59/20.88	d NODES 2011 BACKTRACKS 1997 FAILURES 1998 RUNTIME 14.47 TOTALTIME 20.68 NODES/s 138.977 CHECKS/s 521135

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-2074274-1247359154/watcher-2074274-1247359154 -o /tmp/evaluation-result-2074274-1247359154/solver-2074274-1247359154 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2074274-1247359154.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: 1.38 1.80 1.92 3/80 18503
/proc/meminfo: memFree=1747696/2055920 swapFree=4192812/4192956
[pid=18503] ppid=18501 vsize=18576 CPUtime=0
/proc/18503/stat : 18503 (runsolver) R 18501 18503 16884 0 -1 4194368 15 0 0 0 0 0 0 0 19 0 1 0 22981670 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 225612197159 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/18503/statm: 4644 284 249 26 0 2626 0

[startup+0.101463 s]
/proc/loadavg: 1.38 1.80 1.92 3/80 18503
/proc/meminfo: memFree=1747696/2055920 swapFree=4192812/4192956
[pid=18503] ppid=18501 vsize=5588 CPUtime=0.08
/proc/18503/stat : 18503 (ld-linux.so.2) R 18501 18503 16884 0 -1 4194304 601 0 0 0 8 0 0 0 18 0 1 0 22981670 5722112 580 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157387396 0 0 4096 0 0 0 0 17 1 0 0
/proc/18503/statm: 1397 580 373 29 0 212 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5588

[startup+0.201471 s]
/proc/loadavg: 1.38 1.80 1.92 3/80 18503
/proc/meminfo: memFree=1747696/2055920 swapFree=4192812/4192956
[pid=18503] ppid=18501 vsize=6124 CPUtime=0.18
/proc/18503/stat : 18503 (ld-linux.so.2) R 18501 18503 16884 0 -1 4194304 744 0 0 0 18 0 0 0 18 0 1 0 22981670 6270976 723 996147200 1448431616 1448550632 4294956208 18446744073709551615 134655644 0 0 4096 0 0 0 0 17 1 0 0
/proc/18503/statm: 1531 723 373 29 0 346 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 6124

[startup+0.30148 s]
/proc/loadavg: 1.38 1.80 1.92 3/80 18503
/proc/meminfo: memFree=1747696/2055920 swapFree=4192812/4192956
[pid=18503] ppid=18501 vsize=6764 CPUtime=0.28
/proc/18503/stat : 18503 (ld-linux.so.2) R 18501 18503 16884 0 -1 4194304 896 0 0 0 28 0 0 0 19 0 1 0 22981670 6926336 875 996147200 1448431616 1448550632 4294956208 18446744073709551615 4159783200 0 0 4096 0 0 0 0 17 1 0 0
/proc/18503/statm: 1691 875 373 29 0 506 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6764

[startup+0.701515 s]
/proc/loadavg: 1.38 1.80 1.92 3/80 18503
/proc/meminfo: memFree=1747696/2055920 swapFree=4192812/4192956
[pid=18503] ppid=18501 vsize=9040 CPUtime=0.68
/proc/18503/stat : 18503 (ld-linux.so.2) R 18501 18503 16884 0 -1 4194304 1455 0 0 0 67 1 0 0 23 0 1 0 22981670 9256960 1434 996147200 1448431616 1448550632 4294956208 18446744073709551615 134676165 0 0 4096 0 0 0 0 17 1 0 0
/proc/18503/statm: 2260 1434 373 29 0 1075 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 9040

[startup+1.50158 s]
/proc/loadavg: 1.38 1.80 1.92 3/81 18504
/proc/meminfo: memFree=1741288/2055920 swapFree=4192812/4192956
[pid=18503] ppid=18501 vsize=13508 CPUtime=1.47
/proc/18503/stat : 18503 (ld-linux.so.2) R 18501 18503 16884 0 -1 4194304 2512 0 0 0 146 1 0 0 25 0 1 0 22981670 13832192 2491 996147200 1448431616 1448550632 4294956208 18446744073709551615 4159783893 0 0 4096 0 0 0 0 17 1 0 0
/proc/18503/statm: 3377 2491 373 29 0 2192 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 13508

[startup+3.10172 s]
/proc/loadavg: 1.43 1.80 1.92 3/81 18504
/proc/meminfo: memFree=1735528/2055920 swapFree=4192812/4192956
[pid=18503] ppid=18501 vsize=22012 CPUtime=3.06
/proc/18503/stat : 18503 (ld-linux.so.2) R 18501 18503 16884 0 -1 4194304 4568 0 0 0 303 3 0 0 25 0 1 0 22981670 22540288 4547 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157379354 0 0 4096 0 0 0 0 17 1 0 0
/proc/18503/statm: 5503 4547 374 29 0 4318 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 22012

[startup+6.302 s]
/proc/loadavg: 1.43 1.80 1.92 3/81 18504
/proc/meminfo: memFree=1718952/2055920 swapFree=4192812/4192956
[pid=18503] ppid=18501 vsize=109616 CPUtime=6.22
/proc/18503/stat : 18503 (ld-linux.so.2) R 18501 18503 16884 0 -1 4194304 25953 0 0 0 609 13 0 0 25 0 1 0 22981670 112246784 25932 996147200 1448431616 1448550632 4294956208 18446744073709551615 134860481 0 0 4096 0 0 0 0 17 1 0 0
/proc/18503/statm: 27404 25932 391 29 0 26219 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 109616

[startup+12.7016 s]
/proc/loadavg: 1.52 1.81 1.92 3/81 18504
/proc/meminfo: memFree=1645160/2055920 swapFree=4192812/4192956
[pid=18503] ppid=18501 vsize=109616 CPUtime=12.56
/proc/18503/stat : 18503 (ld-linux.so.2) R 18501 18503 16884 0 -1 4194304 25964 0 0 0 1243 13 0 0 25 0 1 0 22981670 112246784 25943 996147200 1448431616 1448550632 4294956208 18446744073709551615 135259210 0 0 4096 0 0 0 0 17 1 0 0
/proc/18503/statm: 27404 25943 399 29 0 26219 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 109616

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

[startup+12.8026 s]
/proc/loadavg: 1.52 1.81 1.92 3/81 18504
/proc/meminfo: memFree=1645160/2055920 swapFree=4192812/4192956
[pid=18503] ppid=18501 vsize=109616 CPUtime=12.66
/proc/18503/stat : 18503 (ld-linux.so.2) R 18501 18503 16884 0 -1 4194304 25964 0 0 0 1253 13 0 0 25 0 1 0 22981670 112246784 25943 996147200 1448431616 1448550632 4294956208 18446744073709551615 135161293 0 0 4096 0 0 0 0 17 1 0 0
/proc/18503/statm: 27404 25943 399 29 0 26219 0
Current children cumulated CPU time (s) 12.66
Current children cumulated vsize (KiB) 109616

[startup+16.0008 s]
/proc/loadavg: 1.52 1.81 1.92 3/81 18504
/proc/meminfo: memFree=1645224/2055920 swapFree=4192812/4192956
[pid=18503] ppid=18501 vsize=109616 CPUtime=15.83
/proc/18503/stat : 18503 (ld-linux.so.2) R 18501 18503 16884 0 -1 4194304 25964 0 0 0 1570 13 0 0 25 0 1 0 22981670 112246784 25943 996147200 1448431616 1448550632 4294956208 18446744073709551615 135161282 0 0 4096 0 0 0 0 17 1 0 0
/proc/18503/statm: 27404 25943 399 29 0 26219 0
Current children cumulated CPU time (s) 15.83
Current children cumulated vsize (KiB) 109616

[startup+19.2036 s]
/proc/loadavg: 1.55 1.81 1.92 3/81 18504
/proc/meminfo: memFree=1645224/2055920 swapFree=4192812/4192956
[pid=18503] ppid=18501 vsize=109616 CPUtime=19
/proc/18503/stat : 18503 (ld-linux.so.2) R 18501 18503 16884 0 -1 4194304 25964 0 0 0 1887 13 0 0 25 0 1 0 22981670 112246784 25943 996147200 1448431616 1448550632 4294956208 18446744073709551615 134860504 0 0 4096 0 0 0 0 17 1 0 0
/proc/18503/statm: 27404 25943 399 29 0 26219 0
Current children cumulated CPU time (s) 19
Current children cumulated vsize (KiB) 109616

[startup+20.0012 s]
/proc/loadavg: 1.55 1.81 1.92 3/81 18504
/proc/meminfo: memFree=1645160/2055920 swapFree=4192812/4192956
[pid=18503] ppid=18501 vsize=109616 CPUtime=19.79
/proc/18503/stat : 18503 (ld-linux.so.2) R 18501 18503 16884 0 -1 4194304 25964 0 0 0 1966 13 0 0 25 0 1 0 22981670 112246784 25943 996147200 1448431616 1448550632 4294956208 18446744073709551615 134860656 0 0 4096 0 0 0 0 17 1 0 0
/proc/18503/statm: 27404 25943 399 29 0 26219 0
Current children cumulated CPU time (s) 19.79
Current children cumulated vsize (KiB) 109616

[startup+20.8023 s]
/proc/loadavg: 1.55 1.81 1.92 3/81 18504
/proc/meminfo: memFree=1645160/2055920 swapFree=4192812/4192956
[pid=18503] ppid=18501 vsize=109616 CPUtime=20.59
/proc/18503/stat : 18503 (ld-linux.so.2) R 18501 18503 16884 0 -1 4194304 25964 0 0 0 2046 13 0 0 25 0 1 0 22981670 112246784 25943 996147200 1448431616 1448550632 4294956208 18446744073709551615 134534196 0 0 4096 0 0 0 0 17 1 0 0
/proc/18503/statm: 27404 25943 399 29 0 26219 0
Current children cumulated CPU time (s) 20.59
Current children cumulated vsize (KiB) 109616

[startup+21.2023 s]
/proc/loadavg: 1.55 1.81 1.92 3/81 18504
/proc/meminfo: memFree=1645160/2055920 swapFree=4192812/4192956
[pid=18503] ppid=18501 vsize=108916 CPUtime=20.98
/proc/18503/stat : 18503 (ld-linux.so.2) R 18501 18503 16884 0 -1 4194304 25990 0 0 0 2085 13 0 0 25 0 1 0 22981670 111529984 25880 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157373584 0 0 4096 0 0 0 0 17 1 0 0
/proc/18503/statm: 27229 25880 424 29 0 26044 0
Current children cumulated CPU time (s) 20.98
Current children cumulated vsize (KiB) 108916

[startup+21.3023 s]
/proc/loadavg: 1.55 1.81 1.92 3/81 18504
/proc/meminfo: memFree=1645160/2055920 swapFree=4192812/4192956
[pid=18503] ppid=18501 vsize=108400 CPUtime=21.08
/proc/18503/stat : 18503 (ld-linux.so.2) R 18501 18503 16884 0 -1 4194304 25997 0 0 0 2095 13 0 0 25 0 1 0 22981670 111001600 25799 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157373529 0 0 4096 0 0 0 0 17 1 0 0
/proc/18503/statm: 27100 25799 431 29 0 25915 0
Current children cumulated CPU time (s) 21.08
Current children cumulated vsize (KiB) 108400

Child status: 0
Real time (s): 21.3722
CPU time (s): 21.1668
CPU user time (s): 21.0098
CPU system time (s): 0.156976
CPU usage (%): 99.0388
Max. virtual memory (cumulated for all children) (KiB): 109620

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 21.0098
system time used= 0.156976
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 25998
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= 24
involuntary context switches= 859

runsolver used 0.026995 second user time and 0.071989 second system time

The end

Launcher Data 

Begin job on node31 at 2009-07-12 02:39:15
IDJOB=2074274
IDBENCH=56082
IDSOLVER=769
FILE ID=node31/2074274-1247359154
PBS_JOBID= 9506898
Free space on /tmp= 66368 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-25-25-2.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2074274-1247359154/watcher-2074274-1247359154 -o /tmp/evaluation-result-2074274-1247359154/solver-2074274-1247359154 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2074274-1247359154.xml

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

MD5SUM BENCH= b913279437ddb68d75e7e8e0397248e4
RANDOM SEED=256613184

node31.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		: 3000.216
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	: 5931.00
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		: 3000.216
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:       1748176 kB
Buffers:         28832 kB
Cached:          87856 kB
SwapCached:          0 kB
Active:         213104 kB
Inactive:        41992 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1748176 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           17176 kB
Writeback:           0 kB
Mapped:         156260 kB
Slab:            37420 kB
Committed_AS:   908356 kB
PageTables:       2136 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66364 MiB
End job on node31 at 2009-07-12 02:39:37