Trace number 2081449

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) 49.4285 49.9409

General information on the benchmark

Namecsp/largeQueens/
normalized-queens-800.xml
MD5SUMa5cb3ae7953c75d065027fcec4cf35e2
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 variables800
Number of constraints319600
Maximum constraint arity2
Maximum domain size800
Number of constraints which are defined in extension0
Number of constraints which are defined in intension319600
Global constraints used (with number of constraints)

Solver Data 

0.05/0.14	c has big domains
0.05/0.14	c big-domain mode
0.05/0.14	c Seed is 274946440
0.05/0.14	c Constructing HOME/instance-2081449-1247719627.xml 
29.17/29.53	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,V300,V301,V302,V303,V304,V305,V306,V307,V308,V309,V310,V311,V312,V313,V314,V315,V316,V317,V318,V319,V320,V321,V322,V323,V324,V325,V326,V327,V328,V329,V330,V331,V332,V333,V334,V335,V336,V337,V338,V339,V340,V341,V342,V343,V344,V345,V346,V347,V348,V349,V350,V351,V352,V353,V354,V355,V356,V357,V358,V359,V360,V361,V362,V363,V364,V365,V366,V367,V368,V369,V370,V371,V372,V373,V374,V375,V376,V377,V378,V379,V380,V381,V382,V383,V384,V385,V386,V387,V388,V389,V390,V391,V392,V393,V394,V395,V396,V397,V398,V399,V400,V401,V402,V403,V404,V405,V406,V407,V408,V409,V410,V411,V412,V413,V414,V415,V416,V417,V418,V419,V420,V421,V422,V423,V424,V425,V426,V427,V428,V429,V430,V431,V432,V433,V434,V435,V436,V437,V438,V439,V440,V441,V442,V443,V444,V445,V446,V447,V448,V449,V450,V451,V452,V453,V454,V455,V456,V457,V458,V459,V460,V461,V462,V463,V464,V465,V466,V467,V468,V469,V470,V471,V472,V473,V474,V475,V476,V477,V478,V479,V480,V481,V482,V483,V484,V485,V486,V487,V488,V489,V490,V491,V492,V493,V494,V495,V496,V497,V498,V499,V500,V501,V502,V503,V504,V505,V506,V507,V508,V509,V510,V511,V512,V513,V514,V515,V516,V517,V518,V519,V520,V521,V522,V523,V524,V525,V526,V527,V528,V529,V530,V531,V532,V533,V534,V535,V536,V537,V538,V539,V540,V541,V542,V543,V544,V545,V546,V547,V548,V549,V550,V551,V552,V553,V554,V555,V556,V557,V558,V559,V560,V561,V562,V563,V564,V565,V566,V567,V568,V569,V570,V571,V572,V573,V574,V575,V576,V577,V578,V579,V580,V581,V582,V583,V584,V585,V586,V587,V588,V589,V590,V591,V592,V593,V594,V595,V596,V597,V598,V599,V600,V601,V602,V603,V604,V605,V606,V607,V608,V609,V610,V611,V612,V613,V614,V615,V616,V617,V618,V619,V620,V621,V622,V623,V624,V625,V626,V627,V628,V629,V630,V631,V632,V633,V634,V635,V636,V637,V638,V639,V640,V641,V642,V643,V644,V645,V646,V647,V648,V649,V650,V651,V652,V653,V654,V655,V656,V657,V658,V659,V660,V661,V662,V663,V664,V665,V666,V667,V668,V669,V670,V671,V672,V673,V674,V675,V676,V677,V678,V679,V680,V681,V682,V683,V684,V685,V686,V687,V688,V689,V690,V691,V692,V693,V694,V695,V696,V697,V698,V699,V700,V701,V702,V703,V704,V705,V706,V707,V708,V709,V710,V711,V712,V713,V714,V715,V716,V717,V718,V719,V720,V721,V722,V723,V724,V725,V726,V727,V728,V729,V730,V731,V732,V733,V734,V735,V736,V737,V738,V739,V740,V741,V742,V743,V744,V745,V746,V747,V748,V749,V750,V751,V752,V753,V754,V755,V756,V757,V758,V759,V760,V761,V762,V763,V764,V765,V766,V767,V768,V769,V770,V771,V772,V773,V774,V775,V776,V777,V778,V779,V780,V781,V782,V783,V784,V785,V786,V787,V788,V789,V790,V791,V792,V793,V794,V795,V796,V797,V798,V799,V0)
29.17/29.53	c  with 1278401 constraints
29.17/29.53	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-2081449-1247719627/watcher-2081449-1247719627 -o /tmp/evaluation-result-2081449-1247719627/solver-2081449-1247719627 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 274946440 HOME/instance-2081449-1247719627.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: 2.00 2.00 2.00 4/82 15272
/proc/meminfo: memFree=1377560/2055920 swapFree=4192812/4192956
[pid=15272] ppid=15270 vsize=5356 CPUtime=0
/proc/15272/stat : 15272 (pcssolve) R 15270 15272 12861 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 59027129 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 255539604127 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/15272/statm: 1339 241 200 169 0 50 0
[pid=15273] ppid=15272 vsize=3676 CPUtime=0
/proc/15273/stat : 15273 (fgrep) R 15272 15272 12861 0 -1 4194304 148 0 0 0 0 0 0 0 22 0 1 0 59027130 3764224 115 996147200 4194304 4274172 548682068976 18446744073709551615 255539773522 0 0 4096 0 0 0 0 17 1 0 0
/proc/15273/statm: 919 115 87 19 0 43 0

[startup+0.0776531 s]
/proc/loadavg: 2.00 2.00 2.00 4/82 15272
/proc/meminfo: memFree=1377560/2055920 swapFree=4192812/4192956
[pid=15272] ppid=15270 vsize=5356 CPUtime=0.05
/proc/15272/stat : 15272 (pcssolve) S 15270 15272 12861 0 -1 4194304 339 317 0 0 0 0 2 3 19 0 1 0 59027129 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 255539602244 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/15272/statm: 1339 242 201 169 0 50 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5356

[startup+0.102719 s]
/proc/loadavg: 2.00 2.00 2.00 4/82 15272
/proc/meminfo: memFree=1377560/2055920 swapFree=4192812/4192956
[pid=15272] ppid=15270 vsize=5356 CPUtime=0.05
/proc/15272/stat : 15272 (pcssolve) S 15270 15272 12861 0 -1 4194304 339 317 0 0 0 0 2 3 19 0 1 0 59027129 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 255539602244 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/15272/statm: 1339 242 201 169 0 50 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5356

[startup+0.302679 s]
/proc/loadavg: 2.00 2.00 2.00 4/82 15272
/proc/meminfo: memFree=1377560/2055920 swapFree=4192812/4192956
[pid=15272] ppid=15270 vsize=6932 CPUtime=0.25
/proc/15272/stat : 15272 (pcs.big) R 15270 15272 12861 0 -1 4194304 1415 657 0 0 13 0 6 6 18 0 1 0 59027129 7098368 972 996147200 134512640 135215973 4294956304 18446744073709551615 3965052 0 0 4096 0 0 0 0 17 1 0 0
/proc/15272/statm: 1733 972 385 171 0 658 0
Current children cumulated CPU time (s) 0.25
Current children cumulated vsize (KiB) 6932

[startup+0.70171 s]
/proc/loadavg: 2.00 2.00 2.00 4/82 15272
/proc/meminfo: memFree=1377560/2055920 swapFree=4192812/4192956
[pid=15272] ppid=15270 vsize=12544 CPUtime=0.65
/proc/15272/stat : 15272 (pcs.big) R 15270 15272 12861 0 -1 4194304 3280 657 0 0 52 1 6 6 22 0 1 0 59027129 12845056 2259 996147200 134512640 135215973 4294956304 18446744073709551615 134773198 0 0 4096 0 0 0 0 17 1 0 0
/proc/15272/statm: 3136 2259 385 171 0 2061 0
Current children cumulated CPU time (s) 0.65
Current children cumulated vsize (KiB) 12544

[startup+1.50178 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 15277
/proc/meminfo: memFree=1365520/2055920 swapFree=4192812/4192956
[pid=15272] ppid=15270 vsize=27172 CPUtime=1.44
/proc/15272/stat : 15272 (pcs.big) R 15270 15272 12861 0 -1 4194304 7752 657 0 0 127 5 6 6 25 0 1 0 59027129 27824128 4847 996147200 134512640 135215973 4294956304 18446744073709551615 3964701 0 0 4096 0 0 0 0 17 1 0 0
/proc/15272/statm: 6793 4847 385 171 0 5718 0
Current children cumulated CPU time (s) 1.44
Current children cumulated vsize (KiB) 27172

[startup+3.10194 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 15277
/proc/meminfo: memFree=1353104/2055920 swapFree=4192812/4192956
[pid=15272] ppid=15270 vsize=49748 CPUtime=3.02
/proc/15272/stat : 15272 (pcs.big) R 15270 15272 12861 0 -1 4194304 15213 657 0 0 281 9 6 6 25 0 1 0 59027129 50941952 9399 996147200 134512640 135215973 4294956304 18446744073709551615 4159049878 0 0 4096 0 0 0 0 17 1 0 0
/proc/15272/statm: 12437 9399 385 171 0 11362 0
Current children cumulated CPU time (s) 3.02
Current children cumulated vsize (KiB) 49748

[startup+6.30124 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 15277
/proc/meminfo: memFree=1316880/2055920 swapFree=4192812/4192956
[pid=15272] ppid=15270 vsize=94784 CPUtime=6.19
/proc/15272/stat : 15272 (pcs.big) R 15270 15272 12861 0 -1 4194304 29972 657 0 0 588 19 6 6 25 0 1 0 59027129 97058816 18349 996147200 134512640 135215973 4294956304 18446744073709551615 134761728 0 0 4096 0 0 0 0 17 1 0 0
/proc/15272/statm: 23696 18349 385 171 0 22621 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 94784

[startup+12.7018 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 15277
/proc/meminfo: memFree=1238736/2055920 swapFree=4192812/4192956
[pid=15272] ppid=15270 vsize=184840 CPUtime=12.53
/proc/15272/stat : 15272 (pcs.big) R 15270 15272 12861 0 -1 4194304 59197 657 0 0 1200 41 6 6 25 0 1 0 59027129 189276160 35963 996147200 134512640 135215973 4294956304 18446744073709551615 134744831 0 0 4096 0 0 0 0 17 1 0 0
/proc/15272/statm: 46210 35963 385 171 0 45135 0
Current children cumulated CPU time (s) 12.53
Current children cumulated vsize (KiB) 184840

[startup+25.502 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 15277
/proc/meminfo: memFree=1096720/2055920 swapFree=4192812/4192956
[pid=15272] ppid=15270 vsize=365024 CPUtime=25.21
/proc/15272/stat : 15272 (pcs.big) R 15270 15272 12861 0 -1 4194304 117355 657 0 0 2431 78 6 6 25 0 1 0 59027129 373784576 70907 996147200 134512640 135215973 4294956304 18446744073709551615 134533319 0 0 4096 0 0 0 0 17 1 0 0
/proc/15272/statm: 91256 70907 385 171 0 90181 0
Current children cumulated CPU time (s) 25.21
Current children cumulated vsize (KiB) 365024



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+49.8013 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 15277
/proc/meminfo: memFree=616272/2055920 swapFree=4192812/4192956
[pid=15272] ppid=15270 vsize=940704 CPUtime=49.27
/proc/15272/stat : 15272 (pcs.big) R 15270 15272 12861 0 -1 4194304 270692 657 0 0 4752 163 6 6 25 0 1 0 59027129 963280896 190306 996147200 134512640 135215973 4294956304 18446744073709551615 134915778 0 0 4096 0 0 0 0 17 1 0 0
/proc/15272/statm: 235176 190306 407 171 0 234101 0
Current children cumulated CPU time (s) 49.27
Current children cumulated vsize (KiB) 940704

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

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

[startup+49.9079 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 15277
/proc/meminfo: memFree=616272/2055920 swapFree=4192812/4192956
[pid=15272] ppid=15270 vsize=0 CPUtime=49.37
/proc/15272/stat : 15272 (pcs.big) R 15270 15272 12861 0 -1 4195332 270692 657 0 0 4752 173 6 6 25 0 1 0 59027129 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/15272/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 49.37
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 49.9409
CPU time (s): 49.4285
CPU user time (s): 47.5918
CPU system time (s): 1.83672
CPU usage (%): 98.9739
Max. virtual memory (cumulated for all children) (KiB): 940704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 47.5918
system time used= 1.83672
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 271349
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= 21
involuntary context switches= 2068

runsolver used 0.053991 second user time and 0.187971 second system time

The end

Launcher Data 

Begin job on node48 at 2009-07-16 06:47:10
IDJOB=2081449
IDBENCH=57399
IDSOLVER=733
FILE ID=node48/2081449-1247719627
PBS_JOBID= 9521317
Free space on /tmp= 66328 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/largeQueens/normalized-queens-800.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2081449-1247719627/watcher-2081449-1247719627 -o /tmp/evaluation-result-2081449-1247719627/solver-2081449-1247719627 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 274946440 HOME/instance-2081449-1247719627.xml

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

MD5SUM BENCH= a5cb3ae7953c75d065027fcec4cf35e2
RANDOM SEED=274946440

node48.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		: 3000.237
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		: 3000.237
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:       1378040 kB
Buffers:         74156 kB
Cached:         333912 kB
SwapCached:          0 kB
Active:         308200 kB
Inactive:       292140 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1378040 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           44360 kB
Writeback:           0 kB
Mapped:         212668 kB
Slab:            62276 kB
Committed_AS:   771932 kB
PageTables:       2152 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= 66324 MiB
End job on node48 at 2009-07-16 06:48:02