Trace number 2082296

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) 553.514 556.253

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-30.xml
MD5SUM684bd73868b3c19d67d9dc2b2bd45b2f
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 variables60
Number of constraints1800
Maximum constraint arity2
Maximum domain size60
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1800
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 564843994
0.18/0.20	c Constructing HOME/instance-2082296-1247720838.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,V36,V37,V38,V39,V40,V41,V42,V43,V44,V45,V46,V47,V48,V49,V50,V51,V52,V53,V54,V55,V56,V57,V58,V59,V0)
0.18/0.20	c  with 1801 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-2082296-1247720838/watcher-2082296-1247720838 -o /tmp/evaluation-result-2082296-1247720838/solver-2082296-1247720838 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 564843994 HOME/instance-2082296-1247720838.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: 2.16 2.03 2.01 4/72 15240
/proc/meminfo: memFree=1388456/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=5356 CPUtime=0
/proc/15240/stat : 15240 (pcssolve) R 15238 15240 11468 0 -1 4194304 265 0 0 0 0 0 0 0 20 0 1 0 59146921 5484544 233 996147200 4194304 4889804 548682068800 18446744073709551615 217052053124 0 0 4100 65536 0 0 0 17 1 0 0
/proc/15240/statm: 1339 233 194 169 0 50 0

[startup+0.13823 s]
/proc/loadavg: 2.16 2.03 2.01 4/72 15240
/proc/meminfo: memFree=1388456/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=5152 CPUtime=0.12
/proc/15240/stat : 15240 (pcs.big) R 15238 15240 11468 0 -1 4194304 999 656 0 0 12 0 0 0 18 0 1 0 59146921 5275648 630 996147200 134512640 135215973 4294956304 18446744073709551615 134902562 0 0 4096 0 0 0 0 17 1 0 0
/proc/15240/statm: 1288 630 409 171 0 213 0
Current children cumulated CPU time (s) 0.12
Current children cumulated vsize (KiB) 5152

[startup+0.201241 s]
/proc/loadavg: 2.16 2.03 2.01 4/72 15240
/proc/meminfo: memFree=1388456/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=5152 CPUtime=0.18
/proc/15240/stat : 15240 (pcs.big) R 15238 15240 11468 0 -1 4194304 1005 656 0 0 18 0 0 0 18 0 1 0 59146921 5275648 636 996147200 134512640 135215973 4294956304 18446744073709551615 4158960146 0 0 4096 0 0 0 0 17 1 0 0
/proc/15240/statm: 1288 636 409 171 0 213 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 5152

[startup+0.301258 s]
/proc/loadavg: 2.16 2.03 2.01 4/72 15240
/proc/meminfo: memFree=1388456/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=5416 CPUtime=0.28
/proc/15240/stat : 15240 (pcs.big) R 15238 15240 11468 0 -1 4194304 1068 656 0 0 28 0 0 0 19 0 1 0 59146921 5545984 699 996147200 134512640 135215973 4294956304 18446744073709551615 4158960071 0 0 4096 0 0 0 0 17 1 0 0
/proc/15240/statm: 1354 699 409 171 0 279 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5416

[startup+0.701334 s]
/proc/loadavg: 2.16 2.03 2.01 4/72 15240
/proc/meminfo: memFree=1388456/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=6060 CPUtime=0.68
/proc/15240/stat : 15240 (pcs.big) R 15238 15240 11468 0 -1 4194304 1204 656 0 0 68 0 0 0 23 0 1 0 59146921 6205440 835 996147200 134512640 135215973 4294956304 18446744073709551615 134901775 0 0 4096 0 0 0 0 17 1 0 0
/proc/15240/statm: 1515 835 409 171 0 440 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 6060

[startup+1.50149 s]
/proc/loadavg: 2.16 2.03 2.01 3/73 15245
/proc/meminfo: memFree=1386016/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=7616 CPUtime=1.47
/proc/15240/stat : 15240 (pcs.big) R 15238 15240 11468 0 -1 4194304 1597 656 0 0 147 0 0 0 25 0 1 0 59146921 7798784 1228 996147200 134512640 135215973 4294956304 18446744073709551615 134944088 0 0 4096 0 0 0 0 17 1 0 0
/proc/15240/statm: 1904 1228 409 171 0 829 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 7616

[startup+3.10179 s]
/proc/loadavg: 2.15 2.03 2.01 3/73 15245
/proc/meminfo: memFree=1383840/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=10064 CPUtime=3.06
/proc/15240/stat : 15240 (pcs.big) R 15238 15240 11468 0 -1 4194304 2220 656 0 0 306 0 0 0 25 0 1 0 59146921 10305536 1818 996147200 134512640 135215973 4294956304 18446744073709551615 9721467 0 0 4096 0 0 0 0 17 1 0 0
/proc/15240/statm: 2516 1818 409 171 0 1441 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 10064

[startup+6.3014 s]
/proc/loadavg: 2.15 2.03 2.01 3/73 15245
/proc/meminfo: memFree=1377568/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=16760 CPUtime=6.25
/proc/15240/stat : 15240 (pcs.big) R 15238 15240 11468 0 -1 4194304 3958 656 0 0 623 2 0 0 25 0 1 0 59146921 17162240 3458 996147200 134512640 135215973 4294956304 18446744073709551615 135094304 0 0 4096 0 0 0 0 17 1 0 0
/proc/15240/statm: 4190 3458 409 171 0 3115 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 16760

[startup+12.7026 s]
/proc/loadavg: 2.12 2.03 2.01 3/73 15245
/proc/meminfo: memFree=1364960/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=28536 CPUtime=12.62
/proc/15240/stat : 15240 (pcs.big) R 15238 15240 11468 0 -1 4194304 7058 656 0 0 1259 3 0 0 25 0 1 0 59146921 29220864 6364 996147200 134512640 135215973 4294956304 18446744073709551615 4158961363 0 0 4096 0 0 0 0 17 1 0 0
/proc/15240/statm: 7134 6364 409 171 0 6059 0
Current children cumulated CPU time (s) 12.62
Current children cumulated vsize (KiB) 28536

[startup+25.5011 s]
/proc/loadavg: 2.10 2.03 2.01 3/73 15245
/proc/meminfo: memFree=1341728/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=50728 CPUtime=25.36
/proc/15240/stat : 15240 (pcs.big) R 15238 15240 11468 0 -1 4194304 12870 656 0 0 2530 6 0 0 25 0 1 0 59146921 51945472 11919 996147200 134512640 135215973 4294956304 18446744073709551615 9752158 0 0 4096 0 0 0 0 17 1 0 0
/proc/15240/statm: 12682 11919 409 171 0 11607 0
Current children cumulated CPU time (s) 25.36
Current children cumulated vsize (KiB) 50728

[startup+51.102 s]
/proc/loadavg: 2.07 2.03 2.01 3/73 15245
/proc/meminfo: memFree=1295392/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=96868 CPUtime=50.83
/proc/15240/stat : 15240 (pcs.big) R 15238 15240 11468 0 -1 4194304 24900 656 0 0 5069 14 0 0 25 0 1 0 59146921 99192832 23307 996147200 134512640 135215973 4294956304 18446744073709551615 9721467 0 0 4096 0 0 0 0 17 1 0 0
/proc/15240/statm: 24217 23307 409 171 0 23142 0
Current children cumulated CPU time (s) 50.83
Current children cumulated vsize (KiB) 96868

[startup+102.302 s]
/proc/loadavg: 2.02 2.02 2.00 3/73 15245
/proc/meminfo: memFree=1209504/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=179072 CPUtime=101.78
/proc/15240/stat : 15240 (pcs.big) R 15238 15240 11468 0 -1 4194304 46513 656 0 0 10147 31 0 0 25 0 1 0 59146921 183369728 43638 996147200 134512640 135215973 4294956304 18446744073709551615 134590083 0 0 4096 0 0 0 0 17 1 0 0
/proc/15240/statm: 44768 43638 409 171 0 43693 0
Current children cumulated CPU time (s) 101.78
Current children cumulated vsize (KiB) 179072

[startup+162.301 s]
/proc/loadavg: 2.01 2.02 2.00 3/73 15245
/proc/meminfo: memFree=1101344/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=291196 CPUtime=161.48
/proc/15240/stat : 15240 (pcs.big) R 15238 15240 11468 0 -1 4194304 75593 656 0 0 16097 51 0 0 25 0 1 0 59146921 298184704 70156 996147200 134512640 135215973 4294956304 18446744073709551615 9721467 0 0 4096 0 0 0 0 17 1 0 0
/proc/15240/statm: 72799 70156 409 171 0 71724 0
Current children cumulated CPU time (s) 161.48
Current children cumulated vsize (KiB) 291196

[startup+222.306 s]
/proc/loadavg: 2.00 2.01 2.00 3/73 15245
/proc/meminfo: memFree=990112/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=394228 CPUtime=221.19
/proc/15240/stat : 15240 (pcs.big) R 15238 15240 11468 0 -1 4194304 102294 656 0 0 22049 70 0 0 25 0 1 0 59146921 403689472 96857 996147200 134512640 135215973 4294956304 18446744073709551615 134629816 0 0 4096 0 0 0 0 17 1 0 0
/proc/15240/statm: 98557 96857 409 171 0 97482 0
Current children cumulated CPU time (s) 221.19
Current children cumulated vsize (KiB) 394228

[startup+282.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 15245
/proc/meminfo: memFree=894112/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=504800 CPUtime=280.9
/proc/15240/stat : 15240 (pcs.big) R 15238 15240 11468 0 -1 4194304 131087 656 0 0 27999 91 0 0 25 0 1 0 59146921 516915200 120528 996147200 134512640 135215973 4294956304 18446744073709551615 134589874 0 0 4096 0 0 0 0 17 1 0 0
/proc/15240/statm: 126200 120528 409 171 0 125125 0
Current children cumulated CPU time (s) 280.9
Current children cumulated vsize (KiB) 504800

[startup+342.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 15245
/proc/meminfo: memFree=798560/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=590352 CPUtime=340.59
/proc/15240/stat : 15240 (pcs.big) R 15238 15240 11468 0 -1 4194304 153639 656 0 0 33951 108 0 0 25 0 1 0 59146921 604520448 143080 996147200 134512640 135215973 4294956304 18446744073709551615 9752158 0 0 4096 0 0 0 0 17 1 0 0
/proc/15240/statm: 147588 143080 409 171 0 146513 0
Current children cumulated CPU time (s) 340.59
Current children cumulated vsize (KiB) 590352

[startup+402.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 15245
/proc/meminfo: memFree=705824/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=676684 CPUtime=400.3
/proc/15240/stat : 15240 (pcs.big) R 15238 15240 11468 0 -1 4194304 176316 656 0 0 39906 124 0 0 25 0 1 0 59146921 692924416 165757 996147200 134512640 135215973 4294956304 18446744073709551615 134583488 0 0 4096 0 0 0 0 17 1 0 0
/proc/15240/statm: 169171 165757 409 171 0 168096 0
Current children cumulated CPU time (s) 400.3
Current children cumulated vsize (KiB) 676684

[startup+462.301 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 15245
/proc/meminfo: memFree=609696/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=762748 CPUtime=460.01
/proc/15240/stat : 15240 (pcs.big) R 15238 15240 11468 0 -1 4194304 198946 656 0 0 45862 139 0 0 25 0 1 0 59146921 781053952 188387 996147200 134512640 135215973 4294956304 18446744073709551615 9721467 0 0 4096 0 0 0 0 17 1 0 0
/proc/15240/statm: 190687 188387 409 171 0 189612 0
Current children cumulated CPU time (s) 460.01
Current children cumulated vsize (KiB) 762748

[startup+522.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 15245
/proc/meminfo: memFree=512736/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=851800 CPUtime=519.71
/proc/15240/stat : 15240 (pcs.big) R 15238 15240 11468 0 -1 4194304 222298 656 0 0 51819 152 0 0 25 0 1 0 59146921 872243200 211739 996147200 134512640 135215973 4294956304 18446744073709551615 134617361 0 0 4096 0 0 0 0 17 1 0 0
/proc/15240/statm: 212950 211739 409 171 0 211875 0
Current children cumulated CPU time (s) 519.71
Current children cumulated vsize (KiB) 851800



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+556.102 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 15245
/proc/meminfo: memFree=446240/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=921620 CPUtime=553.35
/proc/15240/stat : 15240 (pcs.big) R 15238 15240 11468 0 -1 4194304 240359 656 0 0 55171 164 0 0 25 0 1 0 59146921 943738880 227751 996147200 134512640 135215973 4294956304 18446744073709551615 134585819 0 0 4096 0 0 0 0 17 1 0 0
/proc/15240/statm: 230405 227751 409 171 0 229330 0
Current children cumulated CPU time (s) 553.35
Current children cumulated vsize (KiB) 921620

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

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

[startup+556.206 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 15245
/proc/meminfo: memFree=446240/2055920 swapFree=4192812/4192956
[pid=15240] ppid=15238 vsize=0 CPUtime=553.45
/proc/15240/stat : 15240 (pcs.big) R 15238 15240 11468 0 -1 4195332 240359 656 0 0 55171 174 0 0 25 0 1 0 59146921 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/15240/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 553.45
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 556.253
CPU time (s): 553.514
CPU user time (s): 551.718
CPU system time (s): 1.79573
CPU usage (%): 99.5076
Max. virtual memory (cumulated for all children) (KiB): 921620

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 551.718
system time used= 1.79573
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 241015
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= 6393

runsolver used 0.494924 second user time and 1.53977 second system time

The end

Launcher Data 

Begin job on node59 at 2009-07-16 07:07:18
IDJOB=2082296
IDBENCH=57565
IDSOLVER=733
FILE ID=node59/2082296-1247720838
PBS_JOBID= 9521310
Free space on /tmp= 66344 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-30.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2082296-1247720838/watcher-2082296-1247720838 -o /tmp/evaluation-result-2082296-1247720838/solver-2082296-1247720838 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 564843994 HOME/instance-2082296-1247720838.xml

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

MD5SUM BENCH= 684bd73868b3c19d67d9dc2b2bd45b2f
RANDOM SEED=564843994

node59.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		: 3000.263
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		: 3000.263
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:       1388936 kB
Buffers:        103480 kB
Cached:         358376 kB
SwapCached:          0 kB
Active:         156708 kB
Inactive:       413480 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1388936 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2260 kB
Writeback:           0 kB
Mapped:         119820 kB
Slab:            81876 kB
Committed_AS:   640800 kB
PageTables:       2052 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= 66344 MiB
End job on node59 at 2009-07-16 07:16:36