Trace number 2082263

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? (MO) 431.57 435.941

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-18.xml
MD5SUMcc929e48dfecbcff805ad8354aa2ffc7
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 variables36
Number of constraints648
Maximum constraint arity2
Maximum domain size36
Number of constraints which are defined in extension0
Number of constraints which are defined in intension648
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c has big domains
0.00/0.01	c big-domain mode
0.18/0.20	c Seed is 2025657675
0.18/0.20	c Constructing HOME/instance-2082263-1247720828.xml 
0.18/0.20	c deduced all_different(V1,V2,V3,V4,V5,V6,V7,V8,V9,V10,V11,V12,V13,V14,V15,V16,V17,V18,V19,V20,V21,V22,V23,V24,V25,V26,V27,V28,V29,V30,V31,V32,V33,V34,V35,V0)
0.18/0.20	c  with 649 constraints
0.18/0.20	c Solving

Verifier Data 

ERROR: Unexpected answer ! ('s SATISFIABLE'/'s UNSATISFIABLE' expected)
Got answer: <no 's ' line found>

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2082263-1247720828/watcher-2082263-1247720828 -o /tmp/evaluation-result-2082263-1247720828/solver-2082263-1247720828 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 2025657675 HOME/instance-2082263-1247720828.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: 2.01 2.04 2.00 4/72 19707
/proc/meminfo: memFree=1137100/2055920 swapFree=4192812/4192956
[pid=19707] ppid=19705 vsize=5356 CPUtime=0
/proc/19707/stat : 19707 (pcssolve) S 19705 19707 18334 0 -1 4194304 339 316 0 0 0 0 0 0 19 0 1 0 59147483 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 256364831556 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/19707/statm: 1339 242 201 169 0 50 0
[pid=19710] ppid=19707 vsize=5356 CPUtime=0
/proc/19710/stat : 19710 (pcssolve) R 19707 19707 18334 0 -1 4194368 21 0 0 0 0 0 0 0 21 0 1 0 59147483 5484544 243 996147200 4194304 4889804 548682068800 18446744073709551615 256364834087 0 0 4096 0 0 0 0 17 1 0 0
/proc/19710/statm: 1339 243 202 169 0 50 0
[pid=19711] ppid=19707 vsize=5356 CPUtime=0
/proc/19711/stat : 19711 (pcssolve) R 19707 19707 18334 0 -1 4194368 22 0 0 0 0 0 0 0 22 0 1 0 59147483 5484544 244 996147200 4194304 4889804 548682068800 18446744073709551615 256364834087 0 0 4096 0 0 0 0 17 1 0 0
/proc/19711/statm: 1339 244 203 169 0 50 0

[startup+0.078385 s]
/proc/loadavg: 2.01 2.04 2.00 4/72 19707
/proc/meminfo: memFree=1137100/2055920 swapFree=4192812/4192956
[pid=19707] ppid=19705 vsize=4776 CPUtime=0.06
/proc/19707/stat : 19707 (pcs.big) R 19705 19707 18334 0 -1 4194304 892 654 0 0 6 0 0 0 18 0 1 0 59147483 4890624 523 996147200 134512640 135215973 4294956304 18446744073709551615 134592453 0 0 4096 0 0 0 0 17 1 0 0
/proc/19707/statm: 1194 523 408 171 0 119 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 4776

[startup+0.101387 s]
/proc/loadavg: 2.01 2.04 2.00 4/72 19707
/proc/meminfo: memFree=1137100/2055920 swapFree=4192812/4192956
[pid=19707] ppid=19705 vsize=4776 CPUtime=0.08
/proc/19707/stat : 19707 (pcs.big) R 19705 19707 18334 0 -1 4194304 908 654 0 0 8 0 0 0 18 0 1 0 59147483 4890624 539 996147200 134512640 135215973 4294956304 18446744073709551615 134583498 0 0 4096 0 0 0 0 17 1 0 0
/proc/19707/statm: 1194 539 408 171 0 119 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4776

[startup+0.301406 s]
/proc/loadavg: 2.01 2.04 2.00 4/72 19707
/proc/meminfo: memFree=1137100/2055920 swapFree=4192812/4192956
[pid=19707] ppid=19705 vsize=5296 CPUtime=0.28
/proc/19707/stat : 19707 (pcs.big) R 19705 19707 18334 0 -1 4194304 1013 654 0 0 28 0 0 0 19 0 1 0 59147483 5423104 644 996147200 134512640 135215973 4294956304 18446744073709551615 10695077 0 0 4096 0 0 0 0 17 1 0 0
/proc/19707/statm: 1324 644 408 171 0 249 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5296

[startup+0.701449 s]
/proc/loadavg: 2.01 2.04 2.00 4/72 19707
/proc/meminfo: memFree=1137100/2055920 swapFree=4192812/4192956
[pid=19707] ppid=19705 vsize=6216 CPUtime=0.68
/proc/19707/stat : 19707 (pcs.big) R 19705 19707 18334 0 -1 4194304 1252 654 0 0 68 0 0 0 23 0 1 0 59147483 6365184 883 996147200 134512640 135215973 4294956304 18446744073709551615 134585794 0 0 4096 0 0 0 0 17 1 0 0
/proc/19707/statm: 1554 883 408 171 0 479 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 6216

[startup+1.50153 s]
/proc/loadavg: 2.01 2.04 2.00 3/73 19712
/proc/meminfo: memFree=1134020/2055920 swapFree=4192812/4192956
[pid=19707] ppid=19705 vsize=8032 CPUtime=1.48
/proc/19707/stat : 19707 (pcs.big) R 19705 19707 18334 0 -1 4194304 1718 654 0 0 147 1 0 0 25 0 1 0 59147483 8224768 1316 996147200 134512640 135215973 4294956304 18446744073709551615 10727006 0 0 4096 0 0 0 0 17 1 0 0
/proc/19707/statm: 2008 1316 408 171 0 933 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 8032

[startup+3.1017 s]
/proc/loadavg: 2.01 2.04 2.00 3/73 19712
/proc/meminfo: memFree=1131204/2055920 swapFree=4192812/4192956
[pid=19707] ppid=19705 vsize=11788 CPUtime=3.06
/proc/19707/stat : 19707 (pcs.big) R 19705 19707 18334 0 -1 4194304 2685 654 0 0 305 1 0 0 25 0 1 0 59147483 12070912 2218 996147200 134512640 135215973 4294956304 18446744073709551615 134596291 0 0 4096 0 0 0 0 17 1 0 0
/proc/19707/statm: 2947 2218 408 171 0 1872 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 11788

[startup+6.30103 s]
/proc/loadavg: 2.01 2.04 2.00 3/73 19712
/proc/meminfo: memFree=1121732/2055920 swapFree=4192812/4192956
[pid=19707] ppid=19705 vsize=20240 CPUtime=6.25
/proc/19707/stat : 19707 (pcs.big) R 19705 19707 18334 0 -1 4194304 4894 654 0 0 622 3 0 0 25 0 1 0 59147483 20725760 4265 996147200 134512640 135215973 4294956304 18446744073709551615 134599879 0 0 4096 0 0 0 0 17 1 0 0
/proc/19707/statm: 5060 4265 408 171 0 3985 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 20240

[startup+12.7017 s]
/proc/loadavg: 2.01 2.04 2.00 3/73 19712
/proc/meminfo: memFree=1105156/2055920 swapFree=4192812/4192956
[pid=19707] ppid=19705 vsize=35048 CPUtime=12.59
/proc/19707/stat : 19707 (pcs.big) R 19705 19707 18334 0 -1 4194304 8773 654 0 0 1255 4 0 0 25 0 1 0 59147483 35889152 7822 996147200 134512640 135215973 4294956304 18446744073709551615 134582063 0 0 4096 0 0 0 0 17 1 0 0
/proc/19707/statm: 8762 7822 408 171 0 7687 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 35048

[startup+25.502 s]
/proc/loadavg: 2.00 2.04 2.00 3/73 19712
/proc/meminfo: memFree=1071364/2055920 swapFree=4192812/4192956
[pid=19707] ppid=19705 vsize=66056 CPUtime=25.3
/proc/19707/stat : 19707 (pcs.big) R 19705 19707 18334 0 -1 4194304 16900 654 0 0 2520 10 0 0 25 0 1 0 59147483 67641344 15307 996147200 134512640 135215973 4294956304 18446744073709551615 134591693 0 0 4096 0 0 0 0 17 1 0 0
/proc/19707/statm: 16514 15307 408 171 0 15439 0
Current children cumulated CPU time (s) 25.3
Current children cumulated vsize (KiB) 66056

[startup+51.1017 s]
/proc/loadavg: 2.00 2.03 2.00 3/73 19712
/proc/meminfo: memFree=1011844/2055920 swapFree=4192812/4192956
[pid=19707] ppid=19705 vsize=120432 CPUtime=50.69
/proc/19707/stat : 19707 (pcs.big) R 19705 19707 18334 0 -1 4194304 31245 654 0 0 5052 17 0 0 25 0 1 0 59147483 123322368 28370 996147200 134512640 135215973 4294956304 18446744073709551615 10727039 0 0 4096 0 0 0 0 17 1 0 0
/proc/19707/statm: 30108 28370 408 171 0 29033 0
Current children cumulated CPU time (s) 50.69
Current children cumulated vsize (KiB) 120432

[startup+102.306 s]
/proc/loadavg: 2.00 2.02 2.00 3/73 19712
/proc/meminfo: memFree=887812/2055920 swapFree=4192812/4192956
[pid=19707] ppid=19705 vsize=234084 CPUtime=101.5
/proc/19707/stat : 19707 (pcs.big) R 19705 19707 18334 0 -1 4194304 61068 654 0 0 10117 33 0 0 25 0 1 0 59147483 239702016 55631 996147200 134512640 135215973 4294956304 18446744073709551615 134583647 0 0 4096 0 0 0 0 17 1 0 0
/proc/19707/statm: 58521 55631 408 171 0 57446 0
Current children cumulated CPU time (s) 101.5
Current children cumulated vsize (KiB) 234084

[startup+162.301 s]
/proc/loadavg: 1.93 2.00 1.99 3/73 19893
/proc/meminfo: memFree=1162948/2055920 swapFree=4192812/4192956
[pid=19707] ppid=19705 vsize=349240 CPUtime=160.77
/proc/19707/stat : 19707 (pcs.big) R 19705 19707 18334 0 -1 4194304 91487 654 0 0 16028 49 0 0 25 0 1 0 59147483 357621760 86050 996147200 134512640 135215973 4294956304 18446744073709551615 134588283 0 0 4096 0 0 0 0 17 1 0 0
/proc/19707/statm: 87310 86050 408 171 0 86235 0
Current children cumulated CPU time (s) 160.77
Current children cumulated vsize (KiB) 349240

[startup+222.301 s]
/proc/loadavg: 2.94 2.30 2.10 3/82 20018
/proc/meminfo: memFree=812908/2055920 swapFree=4192812/4192956
[pid=19707] ppid=19705 vsize=470592 CPUtime=219
/proc/19707/stat : 19707 (pcs.big) R 19705 19707 18334 0 -1 4194304 123379 654 0 0 21827 73 0 0 25 0 1 0 59147483 481886208 112820 996147200 134512640 135215973 4294956304 18446744073709551615 134600054 0 0 4096 0 0 0 0 17 0 0 0
/proc/19707/statm: 117648 112820 408 171 0 116573 0
Current children cumulated CPU time (s) 219
Current children cumulated vsize (KiB) 470592

[startup+282.302 s]
/proc/loadavg: 2.34 2.24 2.09 3/82 20018
/proc/meminfo: memFree=690348/2055920 swapFree=4192812/4192956
[pid=19707] ppid=19705 vsize=582672 CPUtime=278.67
/proc/19707/stat : 19707 (pcs.big) R 19705 19707 18334 0 -1 4194304 153082 654 0 0 27776 91 0 0 25 0 1 0 59147483 596656128 142523 996147200 134512640 135215973 4294956304 18446744073709551615 134597565 0 0 4096 0 0 0 0 17 0 0 0
/proc/19707/statm: 145668 142523 408 171 0 144593 0
Current children cumulated CPU time (s) 278.67
Current children cumulated vsize (KiB) 582672

[startup+342.302 s]
/proc/loadavg: 2.14 2.20 2.08 3/82 20018
/proc/meminfo: memFree=570220/2055920 swapFree=4192812/4192956
[pid=19707] ppid=19705 vsize=696700 CPUtime=338.37
/proc/19707/stat : 19707 (pcs.big) R 19705 19707 18334 0 -1 4194304 183313 654 0 0 33729 108 0 0 25 0 1 0 59147483 713420800 172754 996147200 134512640 135215973 4294956304 18446744073709551615 134589769 0 0 4096 0 0 0 0 17 0 0 0
/proc/19707/statm: 174175 172754 408 171 0 173100 0
Current children cumulated CPU time (s) 338.37
Current children cumulated vsize (KiB) 696700

[startup+402.306 s]
/proc/loadavg: 2.04 2.16 2.08 3/82 20018
/proc/meminfo: memFree=441644/2055920 swapFree=4192812/4192956
[pid=19707] ppid=19705 vsize=858700 CPUtime=398.08
/proc/19707/stat : 19707 (pcs.big) R 19705 19707 18334 0 -1 4194304 225385 654 0 0 39677 131 0 0 25 0 1 0 59147483 879308800 204584 996147200 134512640 135215973 4294956304 18446744073709551615 134936688 0 0 4096 0 0 0 0 17 0 0 0
/proc/19707/statm: 214675 204584 408 171 0 213600 0
Current children cumulated CPU time (s) 398.08
Current children cumulated vsize (KiB) 858700



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+435.802 s]
/proc/loadavg: 2.02 2.14 2.07 3/82 20018
/proc/meminfo: memFree=374828/2055920 swapFree=4192812/4192956
[pid=19707] ppid=19705 vsize=921772 CPUtime=431.42
/proc/19707/stat : 19707 (pcs.big) R 19705 19707 18334 0 -1 4194304 242008 654 0 0 43002 140 0 0 25 0 1 0 59147483 943894528 221207 996147200 134512640 135215973 4294956304 18446744073709551615 10694144 0 0 4096 0 0 0 0 17 0 0 0
/proc/19707/statm: 230443 221207 408 171 0 229368 0
Current children cumulated CPU time (s) 431.42
Current children cumulated vsize (KiB) 921772

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

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

[startup+435.907 s]
/proc/loadavg: 2.02 2.14 2.07 3/82 20018
/proc/meminfo: memFree=374828/2055920 swapFree=4192812/4192956
[pid=19707] ppid=19705 vsize=0 CPUtime=431.52
/proc/19707/stat : 19707 (pcs.big) R 19705 19707 18334 0 -1 4195332 242009 654 0 0 43002 150 0 0 25 0 1 0 59147483 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 0 0 0
/proc/19707/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 431.52
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 435.941
CPU time (s): 431.57
CPU user time (s): 430.029
CPU system time (s): 1.54177
CPU usage (%): 98.9974
Max. virtual memory (cumulated for all children) (KiB): 921772

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 430.029
system time used= 1.54176
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 242663
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= 19
involuntary context switches= 12065

runsolver used 0.749886 second user time and 2.06768 second system time

The end

Launcher Data 

Begin job on node90 at 2009-07-16 07:07:08
IDJOB=2082263
IDBENCH=57562
IDSOLVER=733
FILE ID=node90/2082263-1247720828
PBS_JOBID= 9521453
Free space on /tmp= 66096 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-18.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2082263-1247720828/watcher-2082263-1247720828 -o /tmp/evaluation-result-2082263-1247720828/solver-2082263-1247720828 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 2025657675 HOME/instance-2082263-1247720828.xml

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

MD5SUM BENCH= cc929e48dfecbcff805ad8354aa2ffc7
RANDOM SEED=2025657675

node90.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		: 3000.212
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		: 3000.212
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1137516 kB
Buffers:         94484 kB
Cached:         320384 kB
SwapCached:          0 kB
Active:         433728 kB
Inactive:       378936 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1137516 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2196 kB
Writeback:           0 kB
Mapped:         403100 kB
Slab:            90200 kB
Committed_AS:  1018352 kB
PageTables:       2612 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= 66072 MiB
End job on node90 at 2009-07-16 07:14:26