Trace number 2084540

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 0.3.2? 69.0255 69.0531

DiagnosticValue
ASSIGNMENTS1000000

General information on the benchmark

Namecsp/graphColoring/
myciel/normalized-myciel6-6.xml
MD5SUM0d97c29a461b112505245a691895ab8d
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables95
Number of constraints755
Maximum constraint arity2
Maximum domain size6
Number of constraints which are defined in extension0
Number of constraints which are defined in intension755
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.00/0.01	c Seed is 2042785066
0.00/0.01	c Constructing HOME/instance-2084540-1247724811.xml  with 755 constraints
0.00/0.03	c Solving 1000001 backtracks 25 restarts
68.95/69.05	s UNKNOWN
68.95/69.05	c Too many backtracks
68.95/69.05	d ASSIGNMENTS 1000001

Verifier Data 

ERROR: Unexpected answer ! ('s SATISFIABLE'/'s UNSATISFIABLE' expected)
Got answer: UNKNOWN

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2084540-1247724811/watcher-2084540-1247724811 -o /tmp/evaluation-result-2084540-1247724811/solver-2084540-1247724811 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 2042785066 HOME/instance-2084540-1247724811.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: 1.16 1.08 1.37 3/82 8078
/proc/meminfo: memFree=841288/2055920 swapFree=4192812/4192956
[pid=8078] ppid=8076 vsize=5356 CPUtime=0
/proc/8078/stat : 8078 (pcssolve) S 8076 8078 6435 0 -1 4194304 367 647 0 0 0 0 0 0 19 0 1 0 59547273 5484544 243 996147200 4194304 4889804 548682068800 18446744073709551615 225612194628 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/8078/statm: 1339 243 202 169 0 50 0
[pid=8083] ppid=8078 vsize=3688 CPUtime=0
/proc/8083/stat : 8083 (grep) R 8078 8078 6435 0 -1 4194304 165 0 0 0 0 0 0 0 18 0 1 0 59547274 3776512 133 996147200 4194304 4274172 548682068960 18446744073709551615 225612365906 0 0 4096 0 0 0 0 17 1 0 0
/proc/8083/statm: 922 133 98 19 0 46 0

[startup+0.0434971 s]
/proc/loadavg: 1.16 1.08 1.37 3/82 8078
/proc/meminfo: memFree=841288/2055920 swapFree=4192812/4192956
[pid=8078] ppid=8076 vsize=4504 CPUtime=0.03
/proc/8078/stat : 8078 (pcs.small) R 8076 8078 6435 0 -1 4194304 862 819 0 0 3 0 0 0 21 0 1 0 59547273 4612096 471 996147200 134512640 135095119 4294956304 18446744073709551615 134615559 0 0 4096 0 0 0 0 17 0 0 0
/proc/8078/statm: 1126 471 385 142 0 80 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 4504

[startup+0.102502 s]
/proc/loadavg: 1.16 1.08 1.37 3/82 8078
/proc/meminfo: memFree=841288/2055920 swapFree=4192812/4192956
[pid=8078] ppid=8076 vsize=4908 CPUtime=0.09
/proc/8078/stat : 8078 (pcs.small) R 8076 8078 6435 0 -1 4194304 945 819 0 0 9 0 0 0 21 0 1 0 59547273 5025792 554 996147200 134512640 135095119 4294956304 18446744073709551615 134584709 0 0 4096 0 0 0 0 17 0 0 0
/proc/8078/statm: 1227 554 385 142 0 181 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4908

[startup+0.301518 s]
/proc/loadavg: 1.16 1.08 1.37 3/82 8078
/proc/meminfo: memFree=841288/2055920 swapFree=4192812/4192956
[pid=8078] ppid=8076 vsize=6068 CPUtime=0.28
/proc/8078/stat : 8078 (pcs.small) R 8076 8078 6435 0 -1 4194304 1313 819 0 0 28 0 0 0 23 0 1 0 59547273 6213632 791 996147200 134512640 135095119 4294956304 18446744073709551615 134617066 0 0 4096 0 0 0 0 17 0 0 0
/proc/8078/statm: 1517 791 385 142 0 471 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6068

[startup+0.702553 s]
/proc/loadavg: 1.16 1.08 1.37 3/82 8078
/proc/meminfo: memFree=841288/2055920 swapFree=4192812/4192956
[pid=8078] ppid=8076 vsize=8132 CPUtime=0.68
/proc/8078/stat : 8078 (pcs.small) R 8076 8078 6435 0 -1 4194304 2008 819 0 0 68 0 0 0 25 0 1 0 59547273 8327168 1292 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 0 0 0
/proc/8078/statm: 2033 1292 385 142 0 987 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 8132

[startup+1.50162 s]
/proc/loadavg: 1.16 1.08 1.37 2/83 8084
/proc/meminfo: memFree=835968/2055920 swapFree=4192812/4192956
[pid=8078] ppid=8076 vsize=14748 CPUtime=1.48
/proc/8078/stat : 8078 (pcs.small) R 8076 8078 6435 0 -1 4194304 3959 819 0 0 147 1 0 0 25 0 1 0 59547273 15101952 2600 996147200 134512640 135095119 4294956304 18446744073709551615 134617041 0 0 4096 0 0 0 0 17 0 0 0
/proc/8078/statm: 3687 2600 385 142 0 2641 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 14748

[startup+3.10176 s]
/proc/loadavg: 1.16 1.08 1.37 2/83 8084
/proc/meminfo: memFree=830656/2055920 swapFree=4192812/4192956
[pid=8078] ppid=8076 vsize=25232 CPUtime=3.09
/proc/8078/stat : 8078 (pcs.small) R 8076 8078 6435 0 -1 4194304 7285 819 0 0 306 3 0 0 25 0 1 0 59547273 25837568 4900 996147200 134512640 135095119 4294956304 18446744073709551615 134582587 0 0 4096 0 0 0 0 17 0 0 0
/proc/8078/statm: 6308 4900 385 142 0 5262 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 25232

[startup+6.30104 s]
/proc/loadavg: 1.15 1.08 1.37 2/83 8084
/proc/meminfo: memFree=814976/2055920 swapFree=4192812/4192956
[pid=8078] ppid=8076 vsize=49504 CPUtime=6.29
/proc/8078/stat : 8078 (pcs.small) R 8076 8078 6435 0 -1 4194304 13541 819 0 0 623 6 0 0 25 0 1 0 59547273 50692096 10132 996147200 134512640 135095119 4294956304 18446744073709551615 134608641 0 0 4096 0 0 0 0 17 0 0 0
/proc/8078/statm: 12376 10134 385 142 0 11330 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 49504

[startup+12.7016 s]
/proc/loadavg: 1.13 1.08 1.36 2/83 8084
/proc/meminfo: memFree=786824/2055920 swapFree=4192812/4192956
[pid=8078] ppid=8076 vsize=65096 CPUtime=12.68
/proc/8078/stat : 8078 (pcs.small) R 8076 8078 6435 0 -1 4194304 21052 819 0 0 1259 9 0 0 25 0 1 0 59547273 66658304 14568 996147200 134512640 135095119 4294956304 18446744073709551615 134578945 0 0 4096 0 0 0 0 17 0 0 0
/proc/8078/statm: 16274 14568 385 142 0 15228 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 65096

[startup+25.5017 s]
/proc/loadavg: 1.10 1.08 1.36 2/83 8084
/proc/meminfo: memFree=737296/2055920 swapFree=4192812/4192956
[pid=8078] ppid=8076 vsize=120408 CPUtime=25.47
/proc/8078/stat : 8078 (pcs.small) R 8076 8078 6435 0 -1 4194304 39142 819 0 0 2531 16 0 0 25 0 1 0 59547273 123297792 26512 996147200 134512640 135095119 4294956304 18446744073709551615 134589531 0 0 4096 0 0 0 0 17 0 0 0
/proc/8078/statm: 30102 26512 385 142 0 29056 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 120408

[startup+51.1019 s]
/proc/loadavg: 1.07 1.07 1.35 2/83 8084
/proc/meminfo: memFree=654928/2055920 swapFree=4192812/4192956
[pid=8078] ppid=8076 vsize=222772 CPUtime=51.06
/proc/8078/stat : 8078 (pcs.small) R 8076 8078 6435 0 -1 4194304 72144 819 0 0 5076 30 0 0 25 0 1 0 59547273 228118528 47224 996147200 134512640 135095119 4294956304 18446744073709551615 134637948 0 0 4096 0 0 0 0 17 0 0 0
/proc/8078/statm: 55693 47224 385 142 0 54647 0
Current children cumulated CPU time (s) 51.06
Current children cumulated vsize (KiB) 222772

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

[startup+57.5015 s]
/proc/loadavg: 1.06 1.07 1.35 2/83 8084
/proc/meminfo: memFree=635856/2055920 swapFree=4192812/4192956
[pid=8078] ppid=8076 vsize=234272 CPUtime=57.46
/proc/8078/stat : 8078 (pcs.small) R 8076 8078 6435 0 -1 4194304 76749 819 0 0 5714 32 0 0 25 0 1 0 59547273 239894528 51829 996147200 134512640 135095119 4294956304 18446744073709551615 134615589 0 0 4096 0 0 0 0 17 0 0 0
/proc/8078/statm: 58568 51829 385 142 0 57522 0
Current children cumulated CPU time (s) 57.46
Current children cumulated vsize (KiB) 234272

[startup+63.902 s]
/proc/loadavg: 1.06 1.07 1.34 2/83 8084
/proc/meminfo: memFree=617424/2055920 swapFree=4192812/4192956
[pid=8078] ppid=8076 vsize=245600 CPUtime=63.86
/proc/8078/stat : 8078 (pcs.small) R 8076 8078 6435 0 -1 4194304 81219 819 0 0 6352 34 0 0 25 0 1 0 59547273 251494400 56299 996147200 134512640 135095119 4294956304 18446744073709551615 134589560 0 0 4096 0 0 0 0 17 0 0 0
/proc/8078/statm: 61400 56299 385 142 0 60354 0
Current children cumulated CPU time (s) 63.86
Current children cumulated vsize (KiB) 245600

[startup+67.1063 s]
/proc/loadavg: 1.05 1.07 1.34 2/83 8084
/proc/meminfo: memFree=607824/2055920 swapFree=4192812/4192956
[pid=8078] ppid=8076 vsize=251508 CPUtime=67.06
/proc/8078/stat : 8078 (pcs.small) R 8076 8078 6435 0 -1 4194304 83539 819 0 0 6671 35 0 0 25 0 1 0 59547273 257544192 58619 996147200 134512640 135095119 4294956304 18446744073709551615 134615507 0 0 4096 0 0 0 0 17 0 0 0
/proc/8078/statm: 62877 58619 385 142 0 61831 0
Current children cumulated CPU time (s) 67.06
Current children cumulated vsize (KiB) 251508

[startup+67.9014 s]
/proc/loadavg: 1.05 1.07 1.34 2/83 8084
/proc/meminfo: memFree=607824/2055920 swapFree=4192812/4192956
[pid=8078] ppid=8076 vsize=252920 CPUtime=67.86
/proc/8078/stat : 8078 (pcs.small) R 8076 8078 6435 0 -1 4194304 84113 819 0 0 6750 36 0 0 25 0 1 0 59547273 258990080 59193 996147200 134512640 135095119 4294956304 18446744073709551615 134589545 0 0 4096 0 0 0 0 17 0 0 0
/proc/8078/statm: 63230 59193 385 142 0 62184 0
Current children cumulated CPU time (s) 67.86
Current children cumulated vsize (KiB) 252920

[startup+68.7014 s]
/proc/loadavg: 1.05 1.07 1.34 2/83 8084
/proc/meminfo: memFree=604688/2055920 swapFree=4192812/4192956
[pid=8078] ppid=8076 vsize=220536 CPUtime=68.65
/proc/8078/stat : 8078 (pcs.small) R 8076 8078 6435 0 -1 4194304 84257 819 0 0 6829 36 0 0 25 0 1 0 59547273 225828864 51518 996147200 134512640 135095119 4294956304 18446744073709551615 1601605 0 0 4096 0 0 0 0 17 0 0 0
/proc/8078/statm: 55134 51518 385 142 0 54088 0
Current children cumulated CPU time (s) 68.65
Current children cumulated vsize (KiB) 220536

[startup+68.9014 s]
/proc/loadavg: 1.05 1.07 1.34 2/83 8084
/proc/meminfo: memFree=604688/2055920 swapFree=4192812/4192956
[pid=8078] ppid=8076 vsize=220536 CPUtime=68.85
/proc/8078/stat : 8078 (pcs.small) R 8076 8078 6435 0 -1 4194304 84257 819 0 0 6849 36 0 0 25 0 1 0 59547273 225828864 51518 996147200 134512640 135095119 4294956304 18446744073709551615 1601625 0 0 4096 0 0 0 0 17 0 0 0
/proc/8078/statm: 55134 51518 385 142 0 54088 0
Current children cumulated CPU time (s) 68.85
Current children cumulated vsize (KiB) 220536

[startup+69.0014 s]
/proc/loadavg: 1.05 1.07 1.34 2/83 8084
/proc/meminfo: memFree=604688/2055920 swapFree=4192812/4192956
[pid=8078] ppid=8076 vsize=220536 CPUtime=68.95
/proc/8078/stat : 8078 (pcs.small) R 8076 8078 6435 0 -1 4194304 84257 819 0 0 6859 36 0 0 25 0 1 0 59547273 225828864 51518 996147200 134512640 135095119 4294956304 18446744073709551615 1601543 0 0 4096 0 0 0 0 17 0 0 0
/proc/8078/statm: 55134 51518 385 142 0 54088 0
Current children cumulated CPU time (s) 68.95
Current children cumulated vsize (KiB) 220536

Child status: 0
Real time (s): 69.0531
CPU time (s): 69.0255
CPU user time (s): 68.6196
CPU system time (s): 0.405938
CPU usage (%): 99.9601
Max. virtual memory (cumulated for all children) (KiB): 253308

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 68.6196
system time used= 0.405938
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 85078
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= 18
involuntary context switches= 1631

runsolver used 0.05999 second user time and 0.19697 second system time

The end

Launcher Data 

Begin job on node31 at 2009-07-16 08:13:32
IDJOB=2084540
IDBENCH=58089
IDSOLVER=733
FILE ID=node31/2084540-1247724811
PBS_JOBID= 9521481
Free space on /tmp= 66268 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/graphColoring/myciel/normalized-myciel6-6.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2084540-1247724811/watcher-2084540-1247724811 -o /tmp/evaluation-result-2084540-1247724811/solver-2084540-1247724811 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 2042785066 HOME/instance-2084540-1247724811.xml

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

MD5SUM BENCH= 0d97c29a461b112505245a691895ab8d
RANDOM SEED=2042785066

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:        841768 kB
Buffers:         80456 kB
Cached:         270560 kB
SwapCached:          0 kB
Active:         875240 kB
Inactive:       258984 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        841768 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1816 kB
Writeback:           0 kB
Mapped:         803636 kB
Slab:            63356 kB
Committed_AS:  1169840 kB
PageTables:       3444 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= 66264 MiB
End job on node31 at 2009-07-16 08:14:41