Trace number 2087477

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) 146.702 147.533

General information on the benchmark

Namecsp/queens/
normalized-queens-180.xml
MD5SUMc14abf4d20a38dc3ddd30b1ce4c8122e
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark9.79051
Satisfiable
(Un)Satisfiability was proved
Number of variables180
Number of constraints16110
Maximum constraint arity2
Maximum domain size180
Number of constraints which are defined in extension0
Number of constraints which are defined in intension16110
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c has big domains
0.00/0.02	c big-domain mode
0.16/0.21	c Seed is 192594327
0.16/0.21	c Constructing HOME/instance-2087477-1247727683.xml 
1.17/1.20	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,V60,V61,V62,V63,V64,V65,V66,V67,V68,V69,V70,V71,V72,V73,V74,V75,V76,V77,V78,V79,V80,V81,V82,V83,V84,V85,V86,V87,V88,V89,V90,V91,V92,V93,V94,V95,V96,V97,V98,V99,V100,V101,V102,V103,V104,V105,V106,V107,V108,V109,V110,V111,V112,V113,V114,V115,V116,V117,V118,V119,V120,V121,V122,V123,V124,V125,V126,V127,V128,V129,V130,V131,V132,V133,V134,V135,V136,V137,V138,V139,V140,V141,V142,V143,V144,V145,V146,V147,V148,V149,V150,V151,V152,V153,V154,V155,V156,V157,V158,V159,V160,V161,V162,V163,V164,V165,V166,V167,V168,V169,V170,V171,V172,V173,V174,V175,V176,V177,V178,V179,V0)
1.17/1.20	c  with 64441 constraints
1.17/1.20	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-2087477-1247727683/watcher-2087477-1247727683 -o /tmp/evaluation-result-2087477-1247727683/solver-2087477-1247727683 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 192594327 HOME/instance-2087477-1247727683.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: 1.89 2.02 1.99 4/72 18298
/proc/meminfo: memFree=1266504/2055920 swapFree=4192812/4192956
[pid=18298] ppid=18296 vsize=5356 CPUtime=0
/proc/18298/stat : 18298 (pcssolve) R 18296 18298 17427 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 59836037 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 259353275039 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/18298/statm: 1339 241 200 169 0 50 0
[pid=18299] ppid=18298 vsize=3676 CPUtime=0
/proc/18299/stat : 18299 (fgrep) R 18298 18298 17427 0 -1 4194304 145 0 0 0 0 0 0 0 22 0 1 0 59836038 3764224 112 996147200 4194304 4274172 548682068976 18446744073709551615 259353444434 0 0 4096 0 0 0 0 17 1 0 0
/proc/18299/statm: 919 112 85 19 0 43 0
[pid=18300] ppid=18298 vsize=5356 CPUtime=0
/proc/18300/stat : 18300 (pcssolve) R 18298 18298 17427 0 -1 4194368 0 0 0 0 0 0 0 0 21 0 1 0 59836038 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 259353275039 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/18300/statm: 1339 241 200 169 0 50 0

[startup+0.102959 s]
/proc/loadavg: 1.89 2.02 1.99 4/72 18298
/proc/meminfo: memFree=1266504/2055920 swapFree=4192812/4192956
[pid=18298] ppid=18296 vsize=5860 CPUtime=0.07
/proc/18298/stat : 18298 (pcs.big) R 18296 18298 17427 0 -1 4194304 1143 656 0 0 7 0 0 0 18 0 1 0 59836037 6000640 741 996147200 134512640 135215973 4294956320 18446744073709551615 4159337295 0 0 4096 0 0 0 0 17 1 0 0
/proc/18298/statm: 1465 741 385 171 0 390 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5860

[startup+0.201974 s]
/proc/loadavg: 1.89 2.02 1.99 4/72 18298
/proc/meminfo: memFree=1266504/2055920 swapFree=4192812/4192956
[pid=18298] ppid=18296 vsize=7428 CPUtime=0.16
/proc/18298/stat : 18298 (pcs.big) R 18296 18298 17427 0 -1 4194304 1566 656 0 0 16 0 0 0 18 0 1 0 59836037 7606272 1058 996147200 134512640 135215973 4294956320 18446744073709551615 134600817 0 0 4096 0 0 0 0 17 1 0 0
/proc/18298/statm: 1857 1058 385 171 0 782 0
Current children cumulated CPU time (s) 0.16
Current children cumulated vsize (KiB) 7428

[startup+0.301984 s]
/proc/loadavg: 1.89 2.02 1.99 4/72 18298
/proc/meminfo: memFree=1266504/2055920 swapFree=4192812/4192956
[pid=18298] ppid=18296 vsize=9216 CPUtime=0.27
/proc/18298/stat : 18298 (pcs.big) R 18296 18298 17427 0 -1 4194304 2132 656 0 0 26 1 0 0 19 0 1 0 59836037 9437184 1451 996147200 134512640 135215973 4294956320 18446744073709551615 4159051751 0 0 4096 0 0 0 0 17 1 0 0
/proc/18298/statm: 2304 1451 385 171 0 1229 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 9216

[startup+0.701032 s]
/proc/loadavg: 1.89 2.02 1.99 4/72 18298
/proc/meminfo: memFree=1266504/2055920 swapFree=4192812/4192956
[pid=18298] ppid=18296 vsize=15820 CPUtime=0.67
/proc/18298/stat : 18298 (pcs.big) R 18296 18298 17427 0 -1 4194304 4237 656 0 0 65 2 0 0 23 0 1 0 59836037 16199680 2760 996147200 134512640 135215973 4294956320 18446744073709551615 4159050578 0 0 4096 0 0 0 0 17 1 0 0
/proc/18298/statm: 3955 2760 385 171 0 2880 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 15820

[startup+1.50112 s]
/proc/loadavg: 1.89 2.02 1.99 3/73 18303
/proc/meminfo: memFree=1249912/2055920 swapFree=4192812/4192956
[pid=18298] ppid=18296 vsize=29172 CPUtime=1.46
/proc/18298/stat : 18298 (pcs.big) R 18296 18298 17427 0 -1 4194304 9426 656 0 0 142 4 0 0 25 0 1 0 59836037 29872128 6415 996147200 134512640 135215973 4294956320 18446744073709551615 135094915 0 0 4096 0 0 0 0 17 1 0 0
/proc/18298/statm: 7293 6415 403 171 0 6218 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 29172

[startup+3.10131 s]
/proc/loadavg: 1.89 2.02 1.99 3/73 18303
/proc/meminfo: memFree=1227896/2055920 swapFree=4192812/4192956
[pid=18298] ppid=18296 vsize=51764 CPUtime=3.05
/proc/18298/stat : 18298 (pcs.big) R 18296 18298 17427 0 -1 4194304 17196 656 0 0 297 8 0 0 25 0 1 0 59836037 53006336 11591 996147200 134512640 135215973 4294956320 18446744073709551615 134581423 0 0 4096 0 0 0 0 17 1 0 0
/proc/18298/statm: 12941 11591 407 171 0 11866 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 51764

[startup+6.30169 s]
/proc/loadavg: 1.90 2.02 1.99 3/73 18303
/proc/meminfo: memFree=1187000/2055920 swapFree=4192812/4192956
[pid=18298] ppid=18296 vsize=84984 CPUtime=6.21
/proc/18298/stat : 18298 (pcs.big) R 18296 18298 17427 0 -1 4194304 27254 656 0 0 609 12 0 0 25 0 1 0 59836037 87023616 17706 996147200 134512640 135215973 4294956320 18446744073709551615 134594087 0 0 4096 0 0 0 0 17 1 0 0
/proc/18298/statm: 21246 17706 409 171 0 20171 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 84984

[startup+12.7014 s]
/proc/loadavg: 1.91 2.02 1.99 3/73 18303
/proc/meminfo: memFree=1156992/2055920 swapFree=4192812/4192956
[pid=18298] ppid=18296 vsize=94532 CPUtime=12.55
/proc/18298/stat : 18298 (pcs.big) R 18296 18298 17427 0 -1 4194304 32582 656 0 0 1241 14 0 0 25 0 1 0 59836037 96800768 22947 996147200 134512640 135215973 4294956320 18446744073709551615 134533101 0 0 4096 0 0 0 0 17 1 0 0
/proc/18298/statm: 23633 22947 409 171 0 22558 0
Current children cumulated CPU time (s) 12.55
Current children cumulated vsize (KiB) 94532

[startup+25.5019 s]
/proc/loadavg: 1.93 2.01 1.99 3/73 18303
/proc/meminfo: memFree=1066368/2055920 swapFree=4192812/4192956
[pid=18298] ppid=18296 vsize=169272 CPUtime=25.24
/proc/18298/stat : 18298 (pcs.big) R 18296 18298 17427 0 -1 4194304 55252 656 0 0 2501 23 0 0 25 0 1 0 59836037 173334528 38725 996147200 134512640 135215973 4294956320 18446744073709551615 134581296 0 0 4096 0 0 0 0 17 1 0 0
/proc/18298/statm: 42318 38725 409 171 0 41243 0
Current children cumulated CPU time (s) 25.24
Current children cumulated vsize (KiB) 169272

[startup+51.102 s]
/proc/loadavg: 1.95 2.01 1.99 3/73 18303
/proc/meminfo: memFree=801536/2055920 swapFree=4192812/4192956
[pid=18298] ppid=18296 vsize=416920 CPUtime=50.61
/proc/18298/stat : 18298 (pcs.big) R 18296 18298 17427 0 -1 4194304 121841 656 0 0 5011 50 0 0 25 0 1 0 59836037 426926080 91864 996147200 134512640 135215973 4294956320 18446744073709551615 4158960050 0 0 4096 0 0 0 0 17 1 0 0
/proc/18298/statm: 104230 91864 409 171 0 103155 0
Current children cumulated CPU time (s) 50.61
Current children cumulated vsize (KiB) 416920

[startup+102.302 s]
/proc/loadavg: 1.98 2.01 1.99 3/83 18375
/proc/meminfo: memFree=1133864/2055920 swapFree=4192812/4192956
[pid=18298] ppid=18296 vsize=510188 CPUtime=101.48
/proc/18298/stat : 18298 (pcs.big) R 18296 18298 17427 0 -1 4194304 151372 656 0 0 10082 66 0 0 25 0 1 0 59836037 522432512 121313 996147200 134512640 135215973 4294956320 18446744073709551615 6264443 0 0 4096 0 0 0 0 17 0 0 0
/proc/18298/statm: 127547 121313 409 171 0 126472 0
Current children cumulated CPU time (s) 101.48
Current children cumulated vsize (KiB) 510188



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+147.401 s]
/proc/loadavg: 1.99 2.00 1.99 3/82 18415
/proc/meminfo: memFree=867064/2055920 swapFree=4192812/4192956
[pid=18298] ppid=18296 vsize=956640 CPUtime=146.56
/proc/18298/stat : 18298 (pcs.big) R 18296 18298 17427 0 -1 4194304 218568 656 0 0 14560 96 0 0 25 0 1 0 59836037 979599360 188433 996147200 134512640 135215973 4294956320 18446744073709551615 6264443 0 0 4096 0 0 0 0 17 0 0 0
/proc/18298/statm: 239160 188438 409 171 0 238085 0
Current children cumulated CPU time (s) 146.56
Current children cumulated vsize (KiB) 956640

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

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

[startup+147.511 s]
/proc/loadavg: 1.99 2.00 1.99 3/82 18415
/proc/meminfo: memFree=867064/2055920 swapFree=4192812/4192956
[pid=18298] ppid=18296 vsize=0 CPUtime=146.66
/proc/18298/stat : 18298 (pcs.big) R 18296 18298 17427 0 -1 4195332 218640 656 0 0 14560 106 0 0 25 0 1 0 59836037 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 0 0 0
/proc/18298/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 146.66
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 147.533
CPU time (s): 146.702
CPU user time (s): 145.61
CPU system time (s): 1.09183
CPU usage (%): 99.4365
Max. virtual memory (cumulated for all children) (KiB): 956640

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 145.61
system time used= 1.09183
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 219296
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= 2224

runsolver used 0.19397 second user time and 0.45693 second system time

The end

Launcher Data 

Begin job on node1 at 2009-07-16 09:01:23
IDJOB=2087477
IDBENCH=58731
IDSOLVER=733
FILE ID=node1/2087477-1247727683
PBS_JOBID= 9521562
Free space on /tmp= 66384 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/queens/normalized-queens-180.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2087477-1247727683/watcher-2087477-1247727683 -o /tmp/evaluation-result-2087477-1247727683/solver-2087477-1247727683 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 192594327 HOME/instance-2087477-1247727683.xml

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

MD5SUM BENCH= c14abf4d20a38dc3ddd30b1ce4c8122e
RANDOM SEED=192594327

node1.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	: 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		: 3000.216
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:       1266984 kB
Buffers:         71804 kB
Cached:         252624 kB
SwapCached:          0 kB
Active:         476984 kB
Inactive:       246580 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1266984 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4624 kB
Writeback:           0 kB
Mapped:         410748 kB
Slab:            50112 kB
Committed_AS:  1026000 kB
PageTables:       2540 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= 66380 MiB
End job on node1 at 2009-07-16 09:03:52