Trace number 2084463

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? 107.682 108.614

DiagnosticValue
ASSIGNMENTS1000000

General information on the benchmark

Namecsp/graphColoring/
myciel/normalized-myciel7-7.xml
MD5SUM476f5652a7b81cad0245b6dfdd0cea29
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 variables191
Number of constraints2360
Maximum constraint arity2
Maximum domain size7
Number of constraints which are defined in extension0
Number of constraints which are defined in intension2360
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.00/0.02	c Seed is 1527610633
0.00/0.02	c Constructing HOME/instance-2084463-1247724741.xml  with 2360 constraints
0.00/0.09	c Solving 1000001 backtracks 25 restarts
107.65/108.61	s UNKNOWN
107.65/108.61	c Too many backtracks
107.65/108.61	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-2084463-1247724741/watcher-2084463-1247724741 -o /tmp/evaluation-result-2084463-1247724741/solver-2084463-1247724741 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1527610633 HOME/instance-2084463-1247724741.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: 2.00 2.03 2.03 4/82 20204
/proc/meminfo: memFree=1414728/2055920 swapFree=4192812/4192956
[pid=20204] ppid=20202 vsize=5260 CPUtime=0
/proc/20204/stat : 20204 (pcssolve) R 20202 20204 19692 0 -1 4194304 66 0 0 0 0 0 0 0 20 0 1 0 59537585 5386240 50 996147200 4194304 4889804 548682068800 18446744073709551615 273651081882 0 0 4096 0 0 0 0 17 1 0 0
/proc/20204/statm: 1315 50 37 169 0 14 0

[startup+0.0229499 s]
/proc/loadavg: 2.00 2.03 2.03 4/82 20204
/proc/meminfo: memFree=1414728/2055920 swapFree=4192812/4192956
[pid=20204] ppid=20202 vsize=680 CPUtime=0
/proc/20204/stat : 20204 (pcs.small) R 20202 20204 19692 0 -1 4194304 400 822 0 0 0 0 0 0 25 0 1 0 59537585 696320 26 996147200 134512640 135095119 4294956304 18446744073709551615 4309796 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/20204/statm: 170 26 20 142 0 3 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 680

[startup+0.101954 s]
/proc/loadavg: 2.00 2.03 2.03 4/82 20204
/proc/meminfo: memFree=1414728/2055920 swapFree=4192812/4192956
[pid=20204] ppid=20202 vsize=4968 CPUtime=0.07
/proc/20204/stat : 20204 (pcs.small) R 20202 20204 19692 0 -1 4194304 953 822 0 0 7 0 0 0 25 0 1 0 59537585 5087232 562 996147200 134512640 135095119 4294956304 18446744073709551615 134838341 0 0 4096 0 0 0 0 17 0 0 0
/proc/20204/statm: 1242 562 386 142 0 196 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 4968

[startup+0.301966 s]
/proc/loadavg: 2.00 2.03 2.03 4/82 20204
/proc/meminfo: memFree=1414728/2055920 swapFree=4192812/4192956
[pid=20204] ppid=20202 vsize=5360 CPUtime=0.27
/proc/20204/stat : 20204 (pcs.small) R 20202 20204 19692 0 -1 4194304 1077 822 0 0 27 0 0 0 25 0 1 0 59537585 5488640 653 996147200 134512640 135095119 4294956304 18446744073709551615 134616992 0 0 4096 0 0 0 0 17 0 0 0
/proc/20204/statm: 1340 653 386 142 0 294 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 5360

[startup+0.701998 s]
/proc/loadavg: 2.00 2.03 2.03 4/82 20204
/proc/meminfo: memFree=1414728/2055920 swapFree=4192812/4192956
[pid=20204] ppid=20202 vsize=6908 CPUtime=0.67
/proc/20204/stat : 20204 (pcs.small) R 20202 20204 19692 0 -1 4194304 1563 822 0 0 67 0 0 0 25 0 1 0 59537585 7073792 976 996147200 134512640 135095119 4294956304 18446744073709551615 134839528 0 0 4096 0 0 0 0 17 0 0 0
/proc/20204/statm: 1727 976 386 142 0 681 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6908

[startup+1.50105 s]
/proc/loadavg: 2.00 2.03 2.03 3/83 20210
/proc/meminfo: memFree=1410880/2055920 swapFree=4192812/4192956
[pid=20204] ppid=20202 vsize=9748 CPUtime=1.46
/proc/20204/stat : 20204 (pcs.small) R 20202 20204 19692 0 -1 4194304 2528 822 0 0 145 1 0 0 25 0 1 0 59537585 9981952 1683 996147200 134512640 135095119 4294956304 18446744073709551615 134589557 0 0 4096 0 0 0 0 17 0 0 0
/proc/20204/statm: 2437 1683 386 142 0 1391 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 9748

[startup+3.10116 s]
/proc/loadavg: 2.00 2.03 2.03 3/83 20210
/proc/meminfo: memFree=1406912/2055920 swapFree=4192812/4192956
[pid=20204] ppid=20202 vsize=15556 CPUtime=3.05
/proc/20204/stat : 20204 (pcs.small) R 20202 20204 19692 0 -1 4194304 4321 822 0 0 303 2 0 0 25 0 1 0 59537585 15929344 2962 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 0 0 0
/proc/20204/statm: 3889 2962 386 142 0 2843 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 15556

[startup+6.30137 s]
/proc/loadavg: 2.00 2.03 2.02 3/83 20210
/proc/meminfo: memFree=1385152/2055920 swapFree=4192812/4192956
[pid=20204] ppid=20202 vsize=26152 CPUtime=6.23
/proc/20204/stat : 20204 (pcs.small) R 20202 20204 19692 0 -1 4194304 7866 822 0 0 619 4 0 0 25 0 1 0 59537585 26779648 5481 996147200 134512640 135095119 4294956304 18446744073709551615 134616764 0 0 4096 0 0 0 0 17 0 0 0
/proc/20204/statm: 6538 5481 386 142 0 5492 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 26152

[startup+12.7018 s]
/proc/loadavg: 2.00 2.03 2.02 3/83 20210
/proc/meminfo: memFree=1350280/2055920 swapFree=4192812/4192956
[pid=20204] ppid=20202 vsize=48120 CPUtime=12.57
/proc/20204/stat : 20204 (pcs.small) R 20202 20204 19692 0 -1 4194304 14955 822 0 0 1250 7 0 0 25 0 1 0 59537585 49274880 10520 996147200 134512640 135095119 4294956304 18446744073709551615 134617208 0 0 4096 0 0 0 0 17 0 0 0
/proc/20204/statm: 12030 10520 386 142 0 10984 0
Current children cumulated CPU time (s) 12.57
Current children cumulated vsize (KiB) 48120

[startup+25.5017 s]
/proc/loadavg: 2.00 2.03 2.02 3/83 20210
/proc/meminfo: memFree=1298632/2055920 swapFree=4192812/4192956
[pid=20204] ppid=20202 vsize=92576 CPUtime=25.26
/proc/20204/stat : 20204 (pcs.small) R 20202 20204 19692 0 -1 4194304 29209 822 0 0 2513 13 0 0 25 0 1 0 59537585 94797824 20676 996147200 134512640 135095119 4294956304 18446744073709551615 134578265 0 0 4096 0 0 0 0 17 0 0 0
/proc/20204/statm: 23144 20676 386 142 0 22098 0
Current children cumulated CPU time (s) 25.26
Current children cumulated vsize (KiB) 92576

[startup+51.1014 s]
/proc/loadavg: 2.06 2.04 2.03 3/83 20210
/proc/meminfo: memFree=1220168/2055920 swapFree=4192812/4192956
[pid=20204] ppid=20202 vsize=181752 CPUtime=50.64
/proc/20204/stat : 20204 (pcs.small) R 20202 20204 19692 0 -1 4194304 57035 822 0 0 5037 27 0 0 25 0 1 0 59537585 186114048 40308 996147200 134512640 135095119 4294956304 18446744073709551615 134583123 0 0 4096 0 0 0 0 17 0 0 0
/proc/20204/statm: 45438 40308 386 142 0 44392 0
Current children cumulated CPU time (s) 50.64
Current children cumulated vsize (KiB) 181752

[startup+102.307 s]
/proc/loadavg: 2.03 2.03 2.02 3/83 20210
/proc/meminfo: memFree=1117320/2055920 swapFree=4192812/4192956
[pid=20204] ppid=20202 vsize=255868 CPUtime=101.41
/proc/20204/stat : 20204 (pcs.small) R 20202 20204 19692 0 -1 4194304 84471 822 0 0 10100 41 0 0 25 0 1 0 59537585 262008832 59551 996147200 134512640 135095119 4294956304 18446744073709551615 134617027 0 0 4096 0 0 0 0 17 0 0 0
/proc/20204/statm: 63967 59551 386 142 0 62921 0
Current children cumulated CPU time (s) 101.41
Current children cumulated vsize (KiB) 255868

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

[startup+105.501 s]
/proc/loadavg: 2.02 2.03 2.02 3/83 20210
/proc/meminfo: memFree=1111176/2055920 swapFree=4192812/4192956
[pid=20204] ppid=20202 vsize=259580 CPUtime=104.57
/proc/20204/stat : 20204 (pcs.small) R 20202 20204 19692 0 -1 4194304 85956 822 0 0 10416 41 0 0 25 0 1 0 59537585 265809920 61036 996147200 134512640 135095119 4294956304 18446744073709551615 134617027 0 0 4096 0 0 0 0 17 0 0 0
/proc/20204/statm: 64895 61036 386 142 0 63849 0
Current children cumulated CPU time (s) 104.57
Current children cumulated vsize (KiB) 259580

[startup+107.101 s]
/proc/loadavg: 2.02 2.03 2.02 3/83 20210
/proc/meminfo: memFree=1109192/2055920 swapFree=4192812/4192956
[pid=20204] ppid=20202 vsize=261500 CPUtime=106.16
/proc/20204/stat : 20204 (pcs.small) R 20202 20204 19692 0 -1 4194304 86696 822 0 0 10574 42 0 0 25 0 1 0 59537585 267776000 61776 996147200 134512640 135095119 4294956304 18446744073709551615 134617027 0 0 4096 0 0 0 0 17 0 0 0
/proc/20204/statm: 65375 61776 386 142 0 64329 0
Current children cumulated CPU time (s) 106.16
Current children cumulated vsize (KiB) 261500

[startup+107.901 s]
/proc/loadavg: 2.02 2.03 2.02 4/83 20210
/proc/meminfo: memFree=1138632/2055920 swapFree=4192812/4192956
[pid=20204] ppid=20202 vsize=229240 CPUtime=106.95
/proc/20204/stat : 20204 (pcs.small) R 20202 20204 19692 0 -1 4194304 86883 822 0 0 10652 43 0 0 25 0 1 0 59537585 234741760 54132 996147200 134512640 135095119 4294956304 18446744073709551615 134595289 0 0 4096 0 0 0 0 17 0 0 0
/proc/20204/statm: 57310 54132 386 142 0 56264 0
Current children cumulated CPU time (s) 106.95
Current children cumulated vsize (KiB) 229240

[startup+108.301 s]
/proc/loadavg: 2.02 2.03 2.02 4/83 20210
/proc/meminfo: memFree=1138632/2055920 swapFree=4192812/4192956
[pid=20204] ppid=20202 vsize=229240 CPUtime=107.35
/proc/20204/stat : 20204 (pcs.small) R 20202 20204 19692 0 -1 4194304 86883 822 0 0 10692 43 0 0 25 0 1 0 59537585 234741760 54132 996147200 134512640 135095119 4294956304 18446744073709551615 4739224 0 0 4096 0 0 0 0 17 0 0 0
/proc/20204/statm: 57310 54132 386 142 0 56264 0
Current children cumulated CPU time (s) 107.35
Current children cumulated vsize (KiB) 229240

[startup+108.501 s]
/proc/loadavg: 2.02 2.03 2.02 4/83 20210
/proc/meminfo: memFree=1138632/2055920 swapFree=4192812/4192956
[pid=20204] ppid=20202 vsize=229240 CPUtime=107.55
/proc/20204/stat : 20204 (pcs.small) R 20202 20204 19692 0 -1 4194304 86883 822 0 0 10712 43 0 0 25 0 1 0 59537585 234741760 54132 996147200 134512640 135095119 4294956304 18446744073709551615 4739070 0 0 4096 0 0 0 0 17 0 0 0
/proc/20204/statm: 57310 54132 386 142 0 56264 0
Current children cumulated CPU time (s) 107.55
Current children cumulated vsize (KiB) 229240

[startup+108.602 s]
/proc/loadavg: 2.02 2.03 2.02 4/83 20210
/proc/meminfo: memFree=1138632/2055920 swapFree=4192812/4192956
[pid=20204] ppid=20202 vsize=115548 CPUtime=107.65
/proc/20204/stat : 20204 (pcs.small) R 20202 20204 19692 0 -1 4194304 86883 822 0 0 10719 46 0 0 25 0 1 0 59537585 118321152 15492 996147200 134512640 135095119 4294956304 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/20204/statm: 28887 15492 386 142 0 27841 0
Current children cumulated CPU time (s) 107.65
Current children cumulated vsize (KiB) 115548

Child status: 0
Real time (s): 108.614
CPU time (s): 107.682
CPU user time (s): 107.201
CPU system time (s): 0.480926
CPU usage (%): 99.1417
Max. virtual memory (cumulated for all children) (KiB): 262012

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 107.201
system time used= 0.480926
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 87707
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= 22
involuntary context switches= 2646

runsolver used 0.104984 second user time and 0.301954 second system time

The end

Launcher Data 

Begin job on node52 at 2009-07-16 08:12:21
IDJOB=2084463
IDBENCH=58082
IDSOLVER=733
FILE ID=node52/2084463-1247724741
PBS_JOBID= 9521532
Free space on /tmp= 66188 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/graphColoring/myciel/normalized-myciel7-7.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2084463-1247724741/watcher-2084463-1247724741 -o /tmp/evaluation-result-2084463-1247724741/solver-2084463-1247724741 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1527610633 HOME/instance-2084463-1247724741.xml

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

MD5SUM BENCH= 476f5652a7b81cad0245b6dfdd0cea29
RANDOM SEED=1527610633

node52.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		: 3000.236
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		: 3000.236
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:       1415208 kB
Buffers:         80252 kB
Cached:         235744 kB
SwapCached:          0 kB
Active:         331824 kB
Inactive:       239660 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1415208 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2796 kB
Writeback:           0 kB
Mapped:         275924 kB
Slab:            53992 kB
Committed_AS:   949232 kB
PageTables:       2436 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= 66188 MiB
End job on node52 at 2009-07-16 08:14:10