Trace number 2086862

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-restart 0.3.2? (MO) 472.31 476.75

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-15.xml
MD5SUM4d1aaa592db27ccaece4a9a11c6999b4
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark32.1991
Satisfiable
(Un)Satisfiability was proved
Number of variables60
Number of constraints1815
Maximum constraint arity2
Maximum domain size60
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1815
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
0.00/0.02	c Seed is 1113476345
0.00/0.02	c Constructing HOME/instance-2086862-1247726883.xml 
0.00/0.08	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)
0.00/0.08	c  with 1816 constraints
0.00/0.08	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-2086862-1247726883/watcher-2086862-1247726883 -o /tmp/evaluation-result-2086862-1247726883/solver-2086862-1247726883 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1113476345 HOME/instance-2086862-1247726883.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: 1.97 1.98 1.99 4/72 14603
/proc/meminfo: memFree=1497304/2055920 swapFree=4192812/4192956
[pid=14603] ppid=14601 vsize=5260 CPUtime=0
/proc/14603/stat : 14603 (pcssolve) R 14601 14603 14468 0 -1 4194304 65 0 0 0 0 0 0 0 20 0 1 0 59752193 5386240 50 996147200 4194304 4889804 548682068800 18446744073709551615 259412467164 0 0 4096 0 0 0 0 17 1 0 0
/proc/14603/statm: 1315 50 38 169 0 14 0

[startup+0.025735 s]
/proc/loadavg: 1.97 1.98 1.99 4/72 14603
/proc/meminfo: memFree=1497304/2055920 swapFree=4192812/4192956
[pid=14603] ppid=14601 vsize=4492 CPUtime=0
/proc/14603/stat : 14603 (pcs.big) R 14601 14603 14468 0 -1 4194304 812 656 0 0 0 0 0 0 23 0 1 0 59752193 4599808 443 996147200 134512640 135215973 4294956304 18446744073709551615 12841449 0 0 4096 0 0 0 0 17 1 0 0
/proc/14603/statm: 1123 443 384 171 0 48 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 4492

[startup+0.101749 s]
/proc/loadavg: 1.97 1.98 1.99 4/72 14603
/proc/meminfo: memFree=1497304/2055920 swapFree=4192812/4192956
[pid=14603] ppid=14601 vsize=5388 CPUtime=0.08
/proc/14603/stat : 14603 (pcs.big) R 14601 14603 14468 0 -1 4194304 1042 656 0 0 8 0 0 0 23 0 1 0 59752193 5517312 673 996147200 134512640 135215973 4294956304 18446744073709551615 134932151 0 0 4096 0 0 0 0 17 1 0 0
/proc/14603/statm: 1347 673 408 171 0 272 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5388

[startup+0.301786 s]
/proc/loadavg: 1.97 1.98 1.99 4/72 14603
/proc/meminfo: memFree=1497304/2055920 swapFree=4192812/4192956
[pid=14603] ppid=14601 vsize=5652 CPUtime=0.28
/proc/14603/stat : 14603 (pcs.big) R 14601 14603 14468 0 -1 4194304 1098 656 0 0 28 0 0 0 25 0 1 0 59752193 5787648 729 996147200 134512640 135215973 4294956304 18446744073709551615 134617060 0 0 4096 0 0 0 0 17 1 0 0
/proc/14603/statm: 1413 729 408 171 0 338 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5652

[startup+0.701863 s]
/proc/loadavg: 1.97 1.98 1.99 4/72 14603
/proc/meminfo: memFree=1497304/2055920 swapFree=4192812/4192956
[pid=14603] ppid=14601 vsize=6596 CPUtime=0.68
/proc/14603/stat : 14603 (pcs.big) R 14601 14603 14468 0 -1 4194304 1347 656 0 0 68 0 0 0 25 0 1 0 59752193 6754304 978 996147200 134512640 135215973 4294956304 18446744073709551615 134599825 0 0 4096 0 0 0 0 17 1 0 0
/proc/14603/statm: 1649 978 408 171 0 574 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 6596

[startup+1.50202 s]
/proc/loadavg: 1.97 1.98 1.99 3/73 14608
/proc/meminfo: memFree=1493968/2055920 swapFree=4192812/4192956
[pid=14603] ppid=14601 vsize=8428 CPUtime=1.47
/proc/14603/stat : 14603 (pcs.big) R 14601 14603 14468 0 -1 4194304 1787 656 0 0 146 1 0 0 25 0 1 0 59752193 8630272 1418 996147200 134512640 135215973 4294956304 18446744073709551615 4158960584 0 0 4096 0 0 0 0 17 1 0 0
/proc/14603/statm: 2107 1418 408 171 0 1032 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 8428

[startup+3.10132 s]
/proc/loadavg: 1.97 1.98 1.99 3/73 14608
/proc/meminfo: memFree=1491536/2055920 swapFree=4192812/4192956
[pid=14603] ppid=14601 vsize=11932 CPUtime=3.06
/proc/14603/stat : 14603 (pcs.big) R 14601 14603 14468 0 -1 4194304 2656 656 0 0 305 1 0 0 25 0 1 0 59752193 12218368 2287 996147200 134512640 135215973 4294956304 18446744073709551615 134739666 0 0 4096 0 0 0 0 17 1 0 0
/proc/14603/statm: 2983 2287 408 171 0 1908 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 11932

[startup+6.30193 s]
/proc/loadavg: 1.97 1.98 1.99 3/73 14608
/proc/meminfo: memFree=1483344/2055920 swapFree=4192812/4192956
[pid=14603] ppid=14601 vsize=19120 CPUtime=6.23
/proc/14603/stat : 14603 (pcs.big) R 14601 14603 14468 0 -1 4194304 4477 656 0 0 621 2 0 0 25 0 1 0 59752193 19578880 4043 996147200 134512640 135215973 4294956304 18446744073709551615 134583491 0 0 4096 0 0 0 0 17 1 0 0
/proc/14603/statm: 4780 4043 408 171 0 3705 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 19120

[startup+12.7012 s]
/proc/loadavg: 1.98 1.98 1.99 3/73 14608
/proc/meminfo: memFree=1468688/2055920 swapFree=4192812/4192956
[pid=14603] ppid=14601 vsize=32200 CPUtime=12.57
/proc/14603/stat : 14603 (pcs.big) R 14601 14603 14468 0 -1 4194304 7878 656 0 0 1253 4 0 0 25 0 1 0 59752193 32972800 7315 996147200 134512640 135215973 4294956304 18446744073709551615 134589885 0 0 4096 0 0 0 0 17 1 0 0
/proc/14603/statm: 8050 7315 408 171 0 6975 0
Current children cumulated CPU time (s) 12.57
Current children cumulated vsize (KiB) 32200

[startup+25.5016 s]
/proc/loadavg: 1.98 1.98 1.99 3/73 14608
/proc/meminfo: memFree=1439120/2055920 swapFree=4192812/4192956
[pid=14603] ppid=14601 vsize=59900 CPUtime=25.25
/proc/14603/stat : 14603 (pcs.big) R 14601 14603 14468 0 -1 4194304 14990 656 0 0 2517 8 0 0 25 0 1 0 59752193 61337600 14137 996147200 134512640 135215973 4294956304 18446744073709551615 134648240 0 0 4096 0 0 0 0 17 1 0 0
/proc/14603/statm: 14975 14137 408 171 0 13900 0
Current children cumulated CPU time (s) 25.25
Current children cumulated vsize (KiB) 59900

[startup+51.1015 s]
/proc/loadavg: 2.04 2.00 2.00 3/73 14608
/proc/meminfo: memFree=1385680/2055920 swapFree=4192812/4192956
[pid=14603] ppid=14601 vsize=111624 CPUtime=50.61
/proc/14603/stat : 14603 (pcs.big) R 14601 14603 14468 0 -1 4194304 28340 656 0 0 5045 16 0 0 25 0 1 0 59752193 114302976 26909 996147200 134512640 135215973 4294956304 18446744073709551615 134533067 0 0 4096 0 0 0 0 17 1 0 0
/proc/14603/statm: 27906 26909 408 171 0 26831 0
Current children cumulated CPU time (s) 50.61
Current children cumulated vsize (KiB) 111624

[startup+102.306 s]
/proc/loadavg: 2.02 2.00 2.00 3/73 14608
/proc/meminfo: memFree=1279440/2055920 swapFree=4192812/4192956
[pid=14603] ppid=14601 vsize=212308 CPUtime=101.35
/proc/14603/stat : 14603 (pcs.big) R 14601 14603 14468 0 -1 4194304 54244 656 0 0 10104 31 0 0 25 0 1 0 59752193 217403392 51659 996147200 134512640 135215973 4294956304 18446744073709551615 134532661 0 0 4096 0 0 0 0 17 1 0 0
/proc/14603/statm: 53077 51659 408 171 0 52002 0
Current children cumulated CPU time (s) 101.35
Current children cumulated vsize (KiB) 212308

[startup+162.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 14608
/proc/meminfo: memFree=1157456/2055920 swapFree=4192812/4192956
[pid=14603] ppid=14601 vsize=331340 CPUtime=160.79
/proc/14603/stat : 14603 (pcs.big) R 14601 14603 14468 0 -1 4194304 84894 656 0 0 16031 48 0 0 25 0 1 0 59752193 339292160 80260 996147200 134512640 135215973 4294956304 18446744073709551615 134532930 0 0 4096 0 0 0 0 17 1 0 0
/proc/14603/statm: 82835 80260 408 171 0 81760 0
Current children cumulated CPU time (s) 160.79
Current children cumulated vsize (KiB) 331340

[startup+222.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 14608
/proc/meminfo: memFree=1034320/2055920 swapFree=4192812/4192956
[pid=14603] ppid=14601 vsize=443344 CPUtime=220.23
/proc/14603/stat : 14603 (pcs.big) R 14601 14603 14468 0 -1 4194304 113791 656 0 0 21960 63 0 0 25 0 1 0 59752193 453984256 108900 996147200 134512640 135215973 4294956304 18446744073709551615 134589849 0 0 4096 0 0 0 0 17 1 0 0
/proc/14603/statm: 110836 108900 408 171 0 109761 0
Current children cumulated CPU time (s) 220.23
Current children cumulated vsize (KiB) 443344

[startup+282.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 14610
/proc/meminfo: memFree=916816/2055920 swapFree=4192812/4192956
[pid=14603] ppid=14601 vsize=549848 CPUtime=279.67
/proc/14603/stat : 14603 (pcs.big) R 14601 14603 14468 0 -1 4194304 141297 656 0 0 27887 80 0 0 25 0 1 0 59752193 563044352 136406 996147200 134512640 135215973 4294956304 18446744073709551615 4158961134 0 0 4096 0 0 0 0 17 1 0 0
/proc/14603/statm: 137462 136406 408 171 0 136387 0
Current children cumulated CPU time (s) 279.67
Current children cumulated vsize (KiB) 549848

[startup+342.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 14610
/proc/meminfo: memFree=795664/2055920 swapFree=4192812/4192956
[pid=14603] ppid=14601 vsize=674252 CPUtime=339.1
/proc/14603/stat : 14603 (pcs.big) R 14601 14603 14468 0 -1 4194304 173286 656 0 0 33812 98 0 0 25 0 1 0 59752193 690434048 164298 996147200 134512640 135215973 4294956304 18446744073709551615 135096484 0 0 4096 0 0 0 0 17 1 0 0
/proc/14603/statm: 168563 164298 408 171 0 167488 0
Current children cumulated CPU time (s) 339.1
Current children cumulated vsize (KiB) 674252

[startup+402.301 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 14610
/proc/meminfo: memFree=679248/2055920 swapFree=4192812/4192956
[pid=14603] ppid=14601 vsize=780940 CPUtime=398.55
/proc/14603/stat : 14603 (pcs.big) R 14601 14603 14468 0 -1 4194304 200817 656 0 0 39742 113 0 0 25 0 1 0 59752193 799682560 191829 996147200 134512640 135215973 4294956304 18446744073709551615 134599863 0 0 4096 0 0 0 0 17 1 0 0
/proc/14603/statm: 195235 191829 408 171 0 194160 0
Current children cumulated CPU time (s) 398.55
Current children cumulated vsize (KiB) 780940

[startup+462.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 14610
/proc/meminfo: memFree=553552/2055920 swapFree=4192812/4192956
[pid=14603] ppid=14601 vsize=895536 CPUtime=457.98
/proc/14603/stat : 14603 (pcs.big) R 14601 14603 14468 0 -1 4194304 230332 656 0 0 45670 128 0 0 25 0 1 0 59752193 917028864 220831 996147200 134512640 135215973 4294956304 18446744073709551615 4158960056 0 0 4096 0 0 0 0 17 1 0 0
/proc/14603/statm: 223884 220831 408 171 0 222809 0
Current children cumulated CPU time (s) 457.98
Current children cumulated vsize (KiB) 895536



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+476.602 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 14610
/proc/meminfo: memFree=524304/2055920 swapFree=4192812/4192956
[pid=14603] ppid=14601 vsize=921828 CPUtime=472.15
/proc/14603/stat : 14603 (pcs.big) R 14601 14603 14468 0 -1 4194304 237090 656 0 0 47082 133 0 0 25 0 1 0 59752193 943951872 227589 996147200 134512640 135215973 4294956304 18446744073709551615 134581607 0 0 4096 0 0 0 0 17 1 0 0
/proc/14603/statm: 230457 227589 408 171 0 229382 0
Current children cumulated CPU time (s) 472.15
Current children cumulated vsize (KiB) 921828

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

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

[startup+476.707 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 14610
/proc/meminfo: memFree=524304/2055920 swapFree=4192812/4192956
[pid=14603] ppid=14601 vsize=0 CPUtime=472.25
/proc/14603/stat : 14603 (pcs.big) R 14601 14603 14468 0 -1 4195332 237090 656 0 0 47082 143 0 0 25 0 1 0 59752193 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/14603/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 472.25
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 476.75
CPU time (s): 472.31
CPU user time (s): 470.827
CPU system time (s): 1.48277
CPU usage (%): 99.0688
Max. virtual memory (cumulated for all children) (KiB): 921828

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 470.827
system time used= 1.48277
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 237746
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= 10192

runsolver used 0.734888 second user time and 1.38179 second system time

The end

Launcher Data 

Begin job on node42 at 2009-07-16 08:48:03
IDJOB=2086862
IDBENCH=58652
IDSOLVER=734
FILE ID=node42/2086862-1247726883
PBS_JOBID= 9521604
Free space on /tmp= 66296 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-15.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2086862-1247726883/watcher-2086862-1247726883 -o /tmp/evaluation-result-2086862-1247726883/solver-2086862-1247726883 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1113476345 HOME/instance-2086862-1247726883.xml

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

MD5SUM BENCH= 4d1aaa592db27ccaece4a9a11c6999b4
RANDOM SEED=1113476345

node42.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		: 3000.283
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		: 3000.283
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:       1497784 kB
Buffers:         86164 kB
Cached:         333600 kB
SwapCached:          0 kB
Active:         130424 kB
Inactive:       338320 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1497784 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1932 kB
Writeback:           0 kB
Mapped:          60572 kB
Slab:            74712 kB
Committed_AS:   583392 kB
PageTables:       1820 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= 66292 MiB
End job on node42 at 2009-07-16 08:56:01