Trace number 2081494

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) 268.261 270.763

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
0.17/0.21	c Seed is 1578984082
0.17/0.21	c Constructing HOME/instance-2081494-1247719708.xml 
3.54/3.63	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)
3.54/3.63	c  with 179401 constraints
3.54/3.63	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-2081494-1247719708/watcher-2081494-1247719708 -o /tmp/evaluation-result-2081494-1247719708/solver-2081494-1247719708 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1578984082 HOME/instance-2081494-1247719708.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: 2.02 2.01 2.00 4/81 18004
/proc/meminfo: memFree=1510632/2055920 swapFree=4192812/4192956
[pid=18004] ppid=18002 vsize=5356 CPUtime=0
/proc/18004/stat : 18004 (pcssolve) R 18002 18004 15829 0 -1 4194304 273 0 0 0 0 0 0 0 22 0 1 0 59034257 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 246406507167 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/18004/statm: 1339 241 200 169 0 50 0
[pid=18005] ppid=18004 vsize=5356 CPUtime=0
/proc/18005/stat : 18005 (pcssolve) R 18004 18004 15829 0 -1 4194368 0 0 0 0 0 0 0 0 22 0 1 0 59034257 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 246406507167 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/18005/statm: 1339 241 200 169 0 50 0

[startup+0.118411 s]
/proc/loadavg: 2.02 2.01 2.00 4/81 18004
/proc/meminfo: memFree=1510632/2055920 swapFree=4192812/4192956
[pid=18004] ppid=18002 vsize=6148 CPUtime=0.09
/proc/18004/stat : 18004 (pcs.big) R 18002 18004 15829 0 -1 4194304 1171 657 0 0 8 0 0 1 18 0 1 0 59034257 6295552 769 996147200 134512640 135215973 4294956304 18446744073709551615 4159351391 0 0 4096 0 0 0 0 17 1 0 0
/proc/18004/statm: 1537 769 385 171 0 462 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6148

[startup+0.20142 s]
/proc/loadavg: 2.02 2.01 2.00 4/81 18004
/proc/meminfo: memFree=1510632/2055920 swapFree=4192812/4192956
[pid=18004] ppid=18002 vsize=7924 CPUtime=0.17
/proc/18004/stat : 18004 (pcs.big) R 18002 18004 15829 0 -1 4194304 1679 657 0 0 16 0 0 1 18 0 1 0 59034257 8114176 1124 996147200 134512640 135215973 4294956304 18446744073709551615 4159189540 0 0 4096 0 0 0 0 17 1 0 0
/proc/18004/statm: 1981 1124 385 171 0 906 0
Current children cumulated CPU time (s) 0.17
Current children cumulated vsize (KiB) 7924

[startup+0.301429 s]
/proc/loadavg: 2.02 2.01 2.00 4/81 18004
/proc/meminfo: memFree=1510632/2055920 swapFree=4192812/4192956
[pid=18004] ppid=18002 vsize=9028 CPUtime=0.26
/proc/18004/stat : 18004 (pcs.big) R 18002 18004 15829 0 -1 4194304 2069 657 0 0 25 0 0 1 19 0 1 0 59034257 9244672 1433 996147200 134512640 135215973 4294956304 18446744073709551615 10818115 0 0 4096 0 0 0 0 17 1 0 0
/proc/18004/statm: 2257 1433 385 171 0 1182 0
Current children cumulated CPU time (s) 0.26
Current children cumulated vsize (KiB) 9028

[startup+0.701469 s]
/proc/loadavg: 2.02 2.01 2.00 4/81 18004
/proc/meminfo: memFree=1510632/2055920 swapFree=4192812/4192956
[pid=18004] ppid=18002 vsize=15488 CPUtime=0.67
/proc/18004/stat : 18004 (pcs.big) R 18002 18004 15829 0 -1 4194304 4136 657 0 0 65 1 0 1 23 0 1 0 59034257 15859712 2735 996147200 134512640 135215973 4294956304 18446744073709551615 10551301 0 0 4096 0 0 0 0 17 1 0 0
/proc/18004/statm: 3872 2735 385 171 0 2797 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 15488

[startup+1.50155 s]
/proc/loadavg: 2.02 2.01 2.00 3/82 18009
/proc/meminfo: memFree=1496416/2055920 swapFree=4192812/4192956
[pid=18004] ppid=18002 vsize=32412 CPUtime=1.46
/proc/18004/stat : 18004 (pcs.big) R 18002 18004 15829 0 -1 4194304 9076 657 0 0 141 4 0 1 25 0 1 0 59034257 33189888 5928 996147200 134512640 135215973 4294956304 18446744073709551615 134742175 0 0 4096 0 0 0 0 17 1 0 0
/proc/18004/statm: 8103 5928 385 171 0 7028 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 32412

[startup+3.1027 s]
/proc/loadavg: 2.02 2.01 2.00 3/82 18009
/proc/meminfo: memFree=1482976/2055920 swapFree=4192812/4192956
[pid=18004] ppid=18002 vsize=58432 CPUtime=3.05
/proc/18004/stat : 18004 (pcs.big) R 18002 18004 15829 0 -1 4194304 17706 657 0 0 296 8 0 1 25 0 1 0 59034257 59834368 10988 996147200 134512640 135215973 4294956304 18446744073709551615 10817623 0 0 4096 0 0 0 0 17 1 0 0
/proc/18004/statm: 14608 10988 385 171 0 13533 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 58432

[startup+6.302 s]
/proc/loadavg: 2.02 2.01 2.00 3/82 18009
/proc/meminfo: memFree=1429280/2055920 swapFree=4192812/4192956
[pid=18004] ppid=18002 vsize=116272 CPUtime=6.22
/proc/18004/stat : 18004 (pcs.big) R 18002 18004 15829 0 -1 4194304 40259 657 0 0 603 18 0 1 25 0 1 0 59034257 119062528 24708 996147200 134512640 135215973 4294956304 18446744073709551615 134974415 0 0 4096 0 0 0 0 17 1 0 0
/proc/18004/statm: 29068 24708 407 171 0 27993 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 116272

[startup+12.7016 s]
/proc/loadavg: 2.02 2.01 2.00 3/82 18009
/proc/meminfo: memFree=1364064/2055920 swapFree=4192812/4192956
[pid=18004] ppid=18002 vsize=180360 CPUtime=12.55
/proc/18004/stat : 18004 (pcs.big) R 18002 18004 15829 0 -1 4194304 62993 657 0 0 1227 27 0 1 25 0 1 0 59034257 184688640 36844 996147200 134512640 135215973 4294956304 18446744073709551615 134591510 0 0 4096 0 0 0 0 17 1 0 0
/proc/18004/statm: 45090 36844 409 171 0 44015 0
Current children cumulated CPU time (s) 12.55
Current children cumulated vsize (KiB) 180360

[startup+25.5018 s]
/proc/loadavg: 2.02 2.01 2.00 3/82 18009
/proc/meminfo: memFree=1249696/2055920 swapFree=4192812/4192956
[pid=18004] ppid=18002 vsize=315136 CPUtime=25.23
/proc/18004/stat : 18004 (pcs.big) R 18002 18004 15829 0 -1 4194304 105375 657 0 0 2475 47 0 1 25 0 1 0 59034257 322699264 65484 996147200 134512640 135215973 4294956304 18446744073709551615 134581337 0 0 4096 0 0 0 0 17 1 0 0
/proc/18004/statm: 78784 65484 409 171 0 77709 0
Current children cumulated CPU time (s) 25.23
Current children cumulated vsize (KiB) 315136

[startup+51.1012 s]
/proc/loadavg: 2.01 2.01 2.00 3/82 18009
/proc/meminfo: memFree=1197408/2055920 swapFree=4192812/4192956
[pid=18004] ppid=18002 vsize=334880 CPUtime=50.59
/proc/18004/stat : 18004 (pcs.big) R 18002 18004 15829 0 -1 4194304 120219 657 0 0 5006 52 0 1 25 0 1 0 59034257 342917120 79222 996147200 134512640 135215973 4294956304 18446744073709551615 134590112 0 0 4096 0 0 0 0 17 1 0 0
/proc/18004/statm: 83720 79222 409 171 0 82645 0
Current children cumulated CPU time (s) 50.59
Current children cumulated vsize (KiB) 334880

[startup+102.301 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 18009
/proc/meminfo: memFree=950176/2055920 swapFree=4192812/4192956
[pid=18004] ppid=18002 vsize=650336 CPUtime=101.33
/proc/18004/stat : 18004 (pcs.big) R 18002 18004 15829 0 -1 4194304 208780 657 0 0 10045 87 0 1 25 0 1 0 59034257 665944064 140097 996147200 134512640 135215973 4294956304 18446744073709551615 135095344 0 0 4096 0 0 0 0 17 1 0 0
/proc/18004/statm: 162584 140097 409 171 0 161509 0
Current children cumulated CPU time (s) 101.33
Current children cumulated vsize (KiB) 650336

[startup+162.302 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 18009
/proc/meminfo: memFree=885792/2055920 swapFree=4192812/4192956
[pid=18004] ppid=18002 vsize=686840 CPUtime=160.77
/proc/18004/stat : 18004 (pcs.big) R 18002 18004 15829 0 -1 4194304 226039 657 0 0 15981 95 0 1 25 0 1 0 59034257 703324160 156341 996147200 134512640 135215973 4294956304 18446744073709551615 135095379 0 0 4096 0 0 0 0 17 1 0 0
/proc/18004/statm: 171710 156341 409 171 0 170635 0
Current children cumulated CPU time (s) 160.77
Current children cumulated vsize (KiB) 686840

[startup+222.306 s]
/proc/loadavg: 2.00 2.00 2.00 3/82 18011
/proc/meminfo: memFree=730400/2055920 swapFree=4192812/4192956
[pid=18004] ppid=18002 vsize=817576 CPUtime=220.23
/proc/18004/stat : 18004 (pcs.big) R 18002 18004 15829 0 -1 4194304 265367 657 0 0 21911 111 0 1 25 0 1 0 59034257 837197824 194939 996147200 134512640 135215973 4294956304 18446744073709551615 134533067 0 0 4096 0 0 0 0 17 1 0 0
/proc/18004/statm: 204394 194939 409 171 0 203319 0
Current children cumulated CPU time (s) 220.23
Current children cumulated vsize (KiB) 817576



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+270.601 s]
/proc/loadavg: 2.00 2.00 2.00 4/82 18011
/proc/meminfo: memFree=609824/2055920 swapFree=4192812/4192956
[pid=18004] ppid=18002 vsize=921676 CPUtime=268.09
/proc/18004/stat : 18004 (pcs.big) R 18002 18004 15829 0 -1 4194304 295908 657 0 0 26686 122 0 1 25 0 1 0 59034257 943796224 225007 996147200 134512640 135215973 4294956304 18446744073709551615 134581407 0 0 4096 0 0 0 0 17 1 0 0
/proc/18004/statm: 230419 225007 409 171 0 229344 0
Current children cumulated CPU time (s) 268.09
Current children cumulated vsize (KiB) 921676

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

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

[startup+270.712 s]
/proc/loadavg: 2.00 2.00 2.00 4/82 18011
/proc/meminfo: memFree=609824/2055920 swapFree=4192812/4192956
[pid=18004] ppid=18002 vsize=0 CPUtime=268.19
/proc/18004/stat : 18004 (pcs.big) R 18002 18004 15829 0 -1 4195332 295908 657 0 0 26686 132 0 1 25 0 1 0 59034257 0 0 996147200 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/18004/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 268.19
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 270.763
CPU time (s): 268.261
CPU user time (s): 266.873
CPU system time (s): 1.38779
CPU usage (%): 99.0759
Max. virtual memory (cumulated for all children) (KiB): 921676

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 266.873
system time used= 1.38779
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 296565
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= 20
involuntary context switches= 10986

runsolver used 0.387941 second user time and 0.791879 second system time

The end

Launcher Data 

Begin job on node61 at 2009-07-16 06:48:28
IDJOB=2081494
IDBENCH=57403
IDSOLVER=734
FILE ID=node61/2081494-1247719708
PBS_JOBID= 9521385
Free space on /tmp= 66376 MiB

SOLVER NAME= pcs-restart 0.2.restart
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-2081494-1247719708/watcher-2081494-1247719708 -o /tmp/evaluation-result-2081494-1247719708/solver-2081494-1247719708 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1578984082 HOME/instance-2081494-1247719708.xml

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

MD5SUM BENCH= c7d57b0262fde2b45e9a562f45f9d3ca
RANDOM SEED=1578984082

node61.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		: 3000.229
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		: 3000.229
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:       1511112 kB
Buffers:        106580 kB
Cached:         299584 kB
SwapCached:          0 kB
Active:         122760 kB
Inactive:       321104 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1511112 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            7604 kB
Writeback:           0 kB
Mapped:          58152 kB
Slab:            86112 kB
Committed_AS:   588900 kB
PageTables:       1852 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66372 MiB
End job on node61 at 2009-07-16 06:53:01