Trace number 2081493

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) 260.902 263.155

General information on the benchmark

Namecsp/largeQueens/
normalized-queens-300.xml
MD5SUMc7d57b0262fde2b45e9a562f45f9d3ca
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 benchmark47.1408
Satisfiable
(Un)Satisfiability was proved
Number of variables300
Number of constraints44850
Maximum constraint arity2
Maximum domain size300
Number of constraints which are defined in extension0
Number of constraints which are defined in intension44850
Global constraints used (with number of constraints)

Solver Data 

0.00/0.03	c has big domains
0.00/0.03	c big-domain mode
0.00/0.03	c Seed is 1373746934
0.00/0.03	c Constructing HOME/instance-2081493-1247719700.xml 
3.54/3.61	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,V180,V181,V182,V183,V184,V185,V186,V187,V188,V189,V190,V191,V192,V193,V194,V195,V196,V197,V198,V199,V200,V201,V202,V203,V204,V205,V206,V207,V208,V209,V210,V211,V212,V213,V214,V215,V216,V217,V218,V219,V220,V221,V222,V223,V224,V225,V226,V227,V228,V229,V230,V231,V232,V233,V234,V235,V236,V237,V238,V239,V240,V241,V242,V243,V244,V245,V246,V247,V248,V249,V250,V251,V252,V253,V254,V255,V256,V257,V258,V259,V260,V261,V262,V263,V264,V265,V266,V267,V268,V269,V270,V271,V272,V273,V274,V275,V276,V277,V278,V279,V280,V281,V282,V283,V284,V285,V286,V287,V288,V289,V290,V291,V292,V293,V294,V295,V296,V297,V298,V299,V0)
3.54/3.61	c  with 179401 constraints
3.54/3.61	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-2081493-1247719700/watcher-2081493-1247719700 -o /tmp/evaluation-result-2081493-1247719700/solver-2081493-1247719700 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1373746934 HOME/instance-2081493-1247719700.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: 1.91 1.97 1.99 4/72 11776
/proc/meminfo: memFree=1232880/2055920 swapFree=4192812/4192956
[pid=11776] ppid=11774 vsize=5356 CPUtime=0
/proc/11776/stat : 11776 (pcssolve) R 11774 11776 10483 0 -1 4194304 273 0 0 0 0 0 0 0 20 0 1 0 59033941 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 236437695135 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/11776/statm: 1339 241 200 169 0 50 0
[pid=11777] ppid=11776 vsize=5356 CPUtime=0
/proc/11777/stat : 11777 (pcssolve) R 11776 11776 10483 0 -1 4194368 0 0 0 0 0 0 0 0 20 0 1 0 59033941 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 236437695135 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/11777/statm: 1339 241 200 169 0 50 0

[startup+0.0157601 s]
/proc/loadavg: 1.91 1.97 1.99 4/72 11776
/proc/meminfo: memFree=1232880/2055920 swapFree=4192812/4192956
[pid=11776] ppid=11774 vsize=5356 CPUtime=0
/proc/11776/stat : 11776 (pcssolve) S 11774 11776 10483 0 -1 4194304 305 0 0 0 0 0 0 0 20 0 1 0 59033941 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 236437693252 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/11776/statm: 1339 242 201 169 0 50 0
[pid=11777] ppid=11776 vsize=3676 CPUtime=0
/proc/11777/stat : 11777 (fgrep) R 11776 11776 10483 0 -1 4194304 148 0 0 0 0 0 0 0 21 0 1 0 59033941 3764224 115 996147200 4194304 4274172 548682068976 18446744073709551615 4243382 0 0 4096 0 0 0 0 17 1 0 0
/proc/11777/statm: 919 115 87 19 0 43 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 9032

[startup+0.10277 s]
/proc/loadavg: 1.91 1.97 1.99 4/72 11776
/proc/meminfo: memFree=1232880/2055920 swapFree=4192812/4192956
[pid=11776] ppid=11774 vsize=6020 CPUtime=0.08
/proc/11776/stat : 11776 (pcs.big) R 11774 11776 10483 0 -1 4194304 1118 657 0 0 7 0 0 1 22 0 1 0 59033941 6164480 749 996147200 134512640 135215973 4294956304 18446744073709551615 134761745 0 0 4096 0 0 0 0 17 1 0 0
/proc/11776/statm: 1505 749 385 171 0 430 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6020

[startup+0.301796 s]
/proc/loadavg: 1.91 1.97 1.99 4/72 11776
/proc/meminfo: memFree=1232880/2055920 swapFree=4192812/4192956
[pid=11776] ppid=11774 vsize=9028 CPUtime=0.27
/proc/11776/stat : 11776 (pcs.big) R 11774 11776 10483 0 -1 4194304 2075 657 0 0 26 0 0 1 24 0 1 0 59033941 9244672 1439 996147200 134512640 135215973 4294956304 18446744073709551615 4159079072 0 0 4096 0 0 0 0 17 1 0 0
/proc/11776/statm: 2257 1439 385 171 0 1182 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 9028

[startup+0.702843 s]
/proc/loadavg: 1.91 1.97 1.99 4/72 11776
/proc/meminfo: memFree=1232880/2055920 swapFree=4192812/4192956
[pid=11776] ppid=11774 vsize=15488 CPUtime=0.66
/proc/11776/stat : 11776 (pcs.big) R 11774 11776 10483 0 -1 4194304 4137 657 0 0 64 1 0 1 25 0 1 0 59033941 15859712 2736 996147200 134512640 135215973 4294956304 18446744073709551615 4159336993 0 0 4096 0 0 0 0 17 1 0 0
/proc/11776/statm: 3872 2736 385 171 0 2797 0
Current children cumulated CPU time (s) 0.66
Current children cumulated vsize (KiB) 15488

[startup+1.50294 s]
/proc/loadavg: 1.91 1.97 1.99 3/73 11781
/proc/meminfo: memFree=1219112/2055920 swapFree=4192812/4192956
[pid=11776] ppid=11774 vsize=32412 CPUtime=1.46
/proc/11776/stat : 11776 (pcs.big) R 11774 11776 10483 0 -1 4194304 9076 657 0 0 142 3 0 1 25 0 1 0 59033941 33189888 5928 996147200 134512640 135215973 4294956304 18446744073709551615 134742150 0 0 4096 0 0 0 0 17 1 0 0
/proc/11776/statm: 8103 5928 385 171 0 7028 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 32412

[startup+3.10112 s]
/proc/loadavg: 1.91 1.97 1.99 3/73 11781
/proc/meminfo: memFree=1204968/2055920 swapFree=4192812/4192956
[pid=11776] ppid=11774 vsize=58432 CPUtime=3.04
/proc/11776/stat : 11776 (pcs.big) R 11774 11776 10483 0 -1 4194304 17706 657 0 0 296 7 0 1 25 0 1 0 59033941 59834368 10988 996147200 134512640 135215973 4294956304 18446744073709551615 8540247 0 0 4096 0 0 0 0 17 1 0 0
/proc/11776/statm: 14608 10988 385 171 0 13533 0
Current children cumulated CPU time (s) 3.04
Current children cumulated vsize (KiB) 58432

[startup+6.30149 s]
/proc/loadavg: 1.92 1.97 1.99 3/73 11781
/proc/meminfo: memFree=1149544/2055920 swapFree=4192812/4192956
[pid=11776] ppid=11774 vsize=116272 CPUtime=6.22
/proc/11776/stat : 11776 (pcs.big) R 11774 11776 10483 0 -1 4194304 40474 657 0 0 603 18 0 1 25 0 1 0 59033941 119062528 24923 996147200 134512640 135215973 4294956304 18446744073709551615 134533050 0 0 4096 0 0 0 0 17 1 0 0
/proc/11776/statm: 29068 24923 407 171 0 27993 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 116272

[startup+12.7012 s]
/proc/loadavg: 1.93 1.97 1.99 3/73 11781
/proc/meminfo: memFree=1067304/2055920 swapFree=4192812/4192956
[pid=11776] ppid=11774 vsize=180364 CPUtime=12.55
/proc/11776/stat : 11776 (pcs.big) R 11774 11776 10483 0 -1 4194304 64170 657 0 0 1227 27 0 1 25 0 1 0 59033941 184692736 40197 996147200 134512640 135215973 4294956304 18446744073709551615 134739649 0 0 4096 0 0 0 0 17 1 0 0
/proc/11776/statm: 45091 40197 409 171 0 44016 0
Current children cumulated CPU time (s) 12.55
Current children cumulated vsize (KiB) 180364

[startup+25.5017 s]
/proc/loadavg: 1.94 1.97 1.99 3/73 11781
/proc/meminfo: memFree=1037800/2055920 swapFree=4192812/4192956
[pid=11776] ppid=11774 vsize=189832 CPUtime=25.24
/proc/11776/stat : 11776 (pcs.big) R 11774 11776 10483 0 -1 4194304 71915 657 0 0 2492 31 0 1 25 0 1 0 59033941 194387968 45069 996147200 134512640 135215973 4294956304 18446744073709551615 4158853399 0 0 4096 0 0 0 0 17 1 0 0
/proc/11776/statm: 47458 45069 409 171 0 46383 0
Current children cumulated CPU time (s) 25.24
Current children cumulated vsize (KiB) 189832

[startup+51.1016 s]
/proc/loadavg: 1.96 1.97 1.99 3/73 11781
/proc/meminfo: memFree=910120/2055920 swapFree=4192812/4192956
[pid=11776] ppid=11774 vsize=317960 CPUtime=50.6
/proc/11776/stat : 11776 (pcs.big) R 11774 11776 10483 0 -1 4194304 113247 657 0 0 5011 48 0 1 25 0 1 0 59033941 325591040 71976 996147200 134512640 135215973 4294956304 18446744073709551615 135094630 0 0 4096 0 0 0 0 17 1 0 0
/proc/11776/statm: 79490 71976 409 171 0 78415 0
Current children cumulated CPU time (s) 50.6
Current children cumulated vsize (KiB) 317960

[startup+102.307 s]
/proc/loadavg: 1.98 1.97 1.99 3/73 11781
/proc/meminfo: memFree=573032/2055920 swapFree=4192812/4192956
[pid=11776] ppid=11774 vsize=676644 CPUtime=101.38
/proc/11776/stat : 11776 (pcs.big) R 11774 11776 10483 0 -1 4194304 213928 657 0 0 10048 89 0 1 25 0 1 0 59033941 692883456 144862 996147200 134512640 135215973 4294956304 18446744073709551615 134591088 0 0 4096 0 0 0 0 17 1 0 0
/proc/11776/statm: 169161 144862 409 171 0 168086 0
Current children cumulated CPU time (s) 101.38
Current children cumulated vsize (KiB) 676644

[startup+162.301 s]
/proc/loadavg: 1.99 1.97 1.99 3/73 11781
/proc/meminfo: memFree=483880/2055920 swapFree=4192812/4192956
[pid=11776] ppid=11774 vsize=684180 CPUtime=160.87
/proc/11776/stat : 11776 (pcs.big) R 11774 11776 10483 0 -1 4194304 224672 657 0 0 15992 94 0 1 25 0 1 0 59033941 700600320 154648 996147200 134512640 135215973 4294956304 18446744073709551615 135094727 0 0 4096 0 0 0 0 17 1 0 0
/proc/11776/statm: 171045 154648 409 171 0 169970 0
Current children cumulated CPU time (s) 160.87
Current children cumulated vsize (KiB) 684180

[startup+222.301 s]
/proc/loadavg: 2.03 1.99 2.00 3/73 11783
/proc/meminfo: memFree=276456/2055920 swapFree=4192812/4192956
[pid=11776] ppid=11774 vsize=819052 CPUtime=220.37
/proc/11776/stat : 11776 (pcs.big) R 11774 11776 10483 0 -1 4194304 265287 657 0 0 21924 112 0 1 25 0 1 0 59033941 838709248 194533 996147200 134512640 135215973 4294956304 18446744073709551615 4158960050 0 0 4096 0 0 0 0 17 1 0 0
/proc/11776/statm: 204763 194533 409 171 0 203688 0
Current children cumulated CPU time (s) 220.37
Current children cumulated vsize (KiB) 819052



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+263.002 s]
/proc/loadavg: 2.02 1.99 2.00 3/73 11783
/proc/meminfo: memFree=129640/2055920 swapFree=4192812/4192956
[pid=11776] ppid=11774 vsize=923504 CPUtime=260.73
/proc/11776/stat : 11776 (pcs.big) R 11774 11776 10483 0 -1 4194304 296088 657 0 0 25947 125 0 1 25 0 1 0 59033941 945668096 224860 996147200 134512640 135215973 4294956304 18446744073709551615 4158960576 0 0 4096 0 0 0 0 17 1 0 0
/proc/11776/statm: 230876 224860 409 171 0 229801 0
Current children cumulated CPU time (s) 260.73
Current children cumulated vsize (KiB) 923504

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

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

[startup+263.108 s]
/proc/loadavg: 2.02 1.99 2.00 3/73 11783
/proc/meminfo: memFree=129640/2055920 swapFree=4192812/4192956
[pid=11776] ppid=11774 vsize=0 CPUtime=260.83
/proc/11776/stat : 11776 (pcs.big) R 11774 11776 10483 0 -1 4195332 296088 657 0 0 25947 135 0 1 25 0 1 0 59033941 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/11776/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 260.83
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 263.155
CPU time (s): 260.902
CPU user time (s): 259.487
CPU system time (s): 1.41578
CPU usage (%): 99.1441
Max. virtual memory (cumulated for all children) (KiB): 923504

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 259.487
system time used= 1.41578
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 296745
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= 5638

runsolver used 0.352946 second user time and 0.765883 second system time

The end

Launcher Data 

Begin job on node62 at 2009-07-16 06:48:20
IDJOB=2081493
IDBENCH=57403
IDSOLVER=733
FILE ID=node62/2081493-1247719700
PBS_JOBID= 9521434
Free space on /tmp= 66240 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/largeQueens/normalized-queens-300.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2081493-1247719700/watcher-2081493-1247719700 -o /tmp/evaluation-result-2081493-1247719700/solver-2081493-1247719700 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1373746934 HOME/instance-2081493-1247719700.xml

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

MD5SUM BENCH= c7d57b0262fde2b45e9a562f45f9d3ca
RANDOM SEED=1373746934

node62.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		: 3000.220
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		: 3000.220
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:       1233360 kB
Buffers:         69816 kB
Cached:         374904 kB
SwapCached:          0 kB
Active:         345568 kB
Inactive:       398960 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1233360 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            7600 kB
Writeback:           0 kB
Mapped:         311332 kB
Slab:            62696 kB
Committed_AS:   756492 kB
PageTables:       2432 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66240 MiB
End job on node62 at 2009-07-16 06:52:45