Trace number 237256

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, and are wall clock time (not CPU 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
sugar 0.40SAT 9.08 13.0011

General information on the benchmark

Namezhou/
queens2.xml
MD5SUM983aef29b4fcfd91366385dcfbd7a97c
Bench CategoryGLOBAL (global constraints)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.083986
SatisfiableYES
(Un)Satisfiability was proved
Number of variables310
Number of constraints211
Maximum constraint arity104
Maximum domain size104
Number of constraints which are defined in extension0
Number of constraints which are defined in intension208
Global constraints used (with number of constraints)allDifferent(3)

Solver Data (download as text)

1.66	c # Sugar v0-40 (/tmp/evaluation/237256-1170108520/sugar-v0-40.jar)
1.66	
1.81	c # MAIN  BEGIN : /tmp/evaluation/237256-1170108520/unknown.xml [Mon Jan 29 23:08:44 2007]
1.81	c # CONVERT_XML  BEGIN : /tmp/evaluation/237256-1170108520/unknown.xml /tmp/evaluation/237256-1170108520/sugar24584.csp [Mon Jan 29 23:08:44 2007]
1.81	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/237256-1170108520/sugar-v0-40.jar -convert /tmp/evaluation/237256-1170108520/unknown.xml /tmp/evaluation/237256-1170108520/sugar24584.csp
3.66	c BEGIN convert /tmp/evaluation/237256-1170108520/unknown.xml
4.10	c END convert (0.431763 seconds)
4.21	c # CONVERT_XML  END : /tmp/evaluation/237256-1170108520/sugar24584.csp 255936 bytes (2 seconds) [Mon Jan 29 23:08:46 2007]
4.21	c # CONVERT_XML  CPU : 0.5 = 0 + 0 + 0.43 + 0.07
4.21	
4.21	c # GENERATE_SAT  BEGIN : /tmp/evaluation/237256-1170108520/sugar24584.bcnf [Mon Jan 29 23:08:46 2007]
4.21	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/237256-1170108520/sugar-v0-40.jar -bcnf -map /tmp/evaluation/237256-1170108520/sugar24584.map /tmp/evaluation/237256-1170108520/sugar24584.csp /tmp/evaluation/237256-1170108520/sugar24584.bcnf
4.33	c BEGIN parse /tmp/evaluation/237256-1170108520/sugar24584.csp
5.69	c END parse (1.355934 seconds)
5.69	c BEGIN simplify
5.85	c END simplify (0.165357 seconds)
5.85	c BEGIN encode /tmp/evaluation/237256-1170108520/sugar24584.bcnf
8.46	c END encode (2.606801 seconds)
8.82	c # GENERATE_SAT  END : 64066 variables 2682428 clauses 42387064 bytes (5 seconds) [Mon Jan 29 23:08:51 2007]
8.82	c # GENERATE_SAT  CPU : 4.43 = 0.29 + 0.02 + 3.83 + 0.29
8.82	
8.82	c # SOLVE_SAT  BEGIN : /tmp/evaluation/237256-1170108520/sugar24584.bcnf [Mon Jan 29 23:08:51 2007]
8.82	c # CMD : /tmp/evaluation/237256-1170108520/minisat /tmp/evaluation/237256-1170108520/sugar24584.bcnf /tmp/evaluation/237256-1170108520/sugar24584.out
10.44	c ==================================[MINISAT]===================================
10.44	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
10.44	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
10.44	c ==============================================================================
10.44	c |         0 | 2682424  7914306 |  894141       0        0     nan |  0.000 % |
11.20	c |       100 | 2682427  7914306 |  983555      97      678     7.0 |  0.006 % |
11.84	c |       251 | 2682427  7914306 | 1081910     248     6434    25.9 |  0.006 % |
12.38	c ==============================================================================
12.38	c restarts              : 3
12.38	c conflicts             : 362            (107 /sec)
12.38	c decisions             : 3656           (1086 /sec)
12.38	c propagations          : 653740         (194133 /sec)
12.38	c conflict literals     : 14194          (12.85 % deleted)
12.38	c Memory used           : 118.00 MB
12.38	c CPU time              : 3.36749 s
12.38	c 
12.38	c SATISFIABLE
12.43	c # SOLVE_SAT  END : SATISFIABLE (4 seconds) [Mon Jan 29 23:08:55 2007]
12.43	c # SOLVE_SAT  CPU : 3.6 = 0 + 0 + 3.39 + 0.21
12.43	
12.43	c # RESULT : SATISFIABLE
12.43	
12.43	c # OUTPUT_SOL  BEGIN : SAT  [Mon Jan 29 23:08:55 2007]
12.55	c BEGIN read SAT output /tmp/evaluation/237256-1170108520/sugar24584.out
12.63	c END read SAT output (0.082586 seconds)
12.63	c BEGIN write solution /tmp/evaluation/237256-1170108520/sugar24584.sol
12.92	c END write solution (0.289822 seconds)
12.95	s SATISFIABLE
12.95	v 50 24 23 22 65 63 61 84 81 78 22 18 14 8 3 -2 18 12 6 14 7 0 35 27 19 71 62 53 32 22 12 13 2 -9 115 103 91 61 48 35 27 13 -1 112 97 82 68 52 36 109 92 75 59 41 23 58 39 20 77 57 37 116 95 74 88 66 44 111 88 65 117 93 69 104 79 54 36 10 -16 33 6 -21 73 45 17 53 24 -5 100 70 40 40 9 -22 96 64 32 107 74 41 106 72 38 103 68 33 114 78 42 120 83 46 105 67 29 108 69 30 82 42 2 72 31 -10 70 28 -14 129 86 43 97 53 9 135 90 45 131 85 39 66 19 -28 123 75 27 95 46 -3 94 44 -6 150 99 48 67 15 -37 137 84 31 79 25 -29 87 32 -23 92 36 -20 118 61 4 78 20 -38 119 60 1 81 21 -39 110 49 -12 76 14 -48 80 17 -46 146 82 18 145 80 15 113 47 -19 121 54 -13 162 94 26 134 65 -4 75 5 -65 101 30 -41 127 55 -17 102 29 -44 151 77 3 86 11 -64 180 104 28 178 101 24 149 71 -7 83 4 -75 171 91 11 154 73 -8 140 58 -24 99 16 -67 173 89 5 93 8 -77 188 102 16 187 100 13 186 98 10 185 96 7 124 34 -56 142 51 -40 148 56 -36 126 33 -60 153 59 -35 132 37 -58 122 26 -70 98 1 -96 141 43 -55 139 40 -59 138 38 -62 136 35 -66 189 87 -15 179 76 -27
12.96	c # OUTPUT_SOL  END :  (0 seconds) [Mon Jan 29 23:08:55 2007]
12.96	c # OUTPUT_SOL  CPU : 0.02 = 0.02 + 0 + 0 + 0
12.97	
12.97	c # MAIN  END :  (11 seconds) [Mon Jan 29 23:08:55 2007]
12.97	c # MAIN  CPU : 8.55 = 0.31 + 0.02 + 7.65 + 0.57
12.97

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node30/watcher-237256-1170108520 -o ROOT/results/node30/solver-237256-1170108520 -C 1800 -M 900 /tmp/evaluation/237256-1170108520/solver /tmp/evaluation/237256-1170108520 /tmp/evaluation/237256-1170108520/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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

/proc/loadavg: 5.88 4.12 2.93 4/94 24585
/proc/meminfo: memFree=481232/2055920 swapFree=4192812/4192956
[pid=24584] ppid=24582 vsize=5352 CPUtime=0
/proc/24584/stat : 24584 (solver) D 24582 24584 23813 0 -1 4194304 264 0 0 0 0 0 0 0 18 0 1 0 4616253 5480448 231 18446744073709551615 4194304 4889804 548682069296 18446744073709551615 264907582759 0 0 4096 0 18446744071563608240 0 0 17 1 0 0
/proc/24584/statm: 1338 231 193 169 0 49 0

[startup+0.107166 s]
/proc/loadavg: 5.88 4.12 2.93 4/94 24585
/proc/meminfo: memFree=481232/2055920 swapFree=4192812/4192956
[pid=24584] ppid=24582 vsize=5352 CPUtime=0
/proc/24584/stat : 24584 (solver) D 24582 24584 23813 0 -1 4194304 264 0 0 0 0 0 0 0 18 0 1 0 4616253 5480448 231 18446744073709551615 4194304 4889804 548682069296 18446744073709551615 264907582759 0 0 4096 0 18446744071563608240 0 0 17 1 0 0
/proc/24584/statm: 1338 231 193 169 0 49 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5352

[startup+0.515224 s]
/proc/loadavg: 5.88 4.12 2.93 4/94 24585
/proc/meminfo: memFree=481232/2055920 swapFree=4192812/4192956
[pid=24584] ppid=24582 vsize=7504 CPUtime=0
/proc/24584/stat : 24584 (sugar) D 24582 24584 23813 0 -1 4194304 310 0 2 0 0 0 0 0 18 0 1 0 4616253 7684096 48 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 264904966864 0 0 4096 0 18446744071563479169 0 0 17 1 0 0
/proc/24584/statm: 1876 48 36 3 0 9 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 7504

[startup+1.33634 s]
/proc/loadavg: 5.88 4.12 2.93 2/94 24585
/proc/meminfo: memFree=449232/2055920 swapFree=4192812/4192956
[pid=24584] ppid=24582 vsize=12404 CPUtime=0.01
/proc/24584/stat : 24584 (sugar) D 24582 24584 23813 0 -1 4194304 669 0 4 0 0 1 0 0 18 0 1 0 4616253 12701696 392 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 264916480098 0 0 4224 0 18446744071563479169 0 0 17 1 0 0
/proc/24584/statm: 3101 392 275 3 0 201 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 12404

[startup+2.97857 s]
/proc/loadavg: 5.88 4.12 2.93 2/95 24586
/proc/meminfo: memFree=422344/2055920 swapFree=4192812/4192956
[pid=24584] ppid=24582 vsize=13724 CPUtime=0.04
/proc/24584/stat : 24584 (sugar) S 24582 24584 23813 0 -1 4194304 1108 0 4 0 3 1 0 0 16 0 1 0 4616253 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 264916480098 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/24584/statm: 3431 805 368 3 0 531 0
[pid=24586] ppid=24584 vsize=9912 CPUtime=0
/proc/24586/stat : 24586 (java) D 24584 24584 23813 0 -1 0 680 0 9 0 0 0 0 0 18 0 1 0 4616435 10149888 450 18446744073709551615 134512640 134570532 4294956528 18446744073709551615 4294960144 0 0 0 7368 18446744071563479169 0 0 17 0 0 0
/proc/24586/statm: 2478 450 365 14 0 1143 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 23636

[startup+6.27705 s]
/proc/loadavg: 5.81 4.13 2.94 3/102 24602
/proc/meminfo: memFree=290512/2055920 swapFree=4192812/4192956
[pid=24584] ppid=24582 vsize=13724 CPUtime=0.54
/proc/24584/stat : 24584 (sugar) S 24582 24584 23813 0 -1 4194304 1186 5416 4 32 3 1 43 7 16 0 1 0 4616253 14053376 809 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 264916480098 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/24584/statm: 3431 809 371 3 0 531 0
[pid=24595] ppid=24584 vsize=807340 CPUtime=1.94
/proc/24595/stat : 24595 (java) R 24584 24584 23813 0 -1 0 13416 0 2 0 185 9 0 0 25 0 8 0 4616674 826716160 13158 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/24595/statm: 201835 13158 1510 14 0 189113 0
[pid=24595/tid=24596] ppid=24584 vsize=807340 CPUtime=0.32
/proc/24595/task/24596/stat : 24596 (java) R 24584 24584 23813 0 -1 64 7178 0 0 0 30 2 0 0 16 0 8 0 4616677 826716160 13158 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4155533151 0 0 0 23759 0 0 0 -1 0 0 0
[pid=24595/tid=24597] ppid=24584 vsize=807340 CPUtime=0
/proc/24595/task/24597/stat : 24597 (java) S 24584 24584 23813 0 -1 64 11 0 0 0 0 0 0 0 16 0 8 0 4616678 826716160 13158 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=24595/tid=24598] ppid=24584 vsize=807340 CPUtime=0
/proc/24595/task/24598/stat : 24598 (java) S 24584 24584 23813 0 -1 64 5 0 0 0 0 0 0 0 16 0 8 0 4616678 826716160 13158 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=24595/tid=24599] ppid=24584 vsize=807340 CPUtime=0
/proc/24595/task/24599/stat : 24599 (java) S 24584 24584 23813 0 -1 64 0 0 0 0 0 0 0 0 18 0 8 0 4616681 826716160 13158 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=24595/tid=24600] ppid=24584 vsize=807340 CPUtime=0.15
/proc/24595/task/24600/stat : 24600 (java) S 24584 24584 23813 0 -1 64 418 0 1 0 15 0 0 0 16 0 8 0 4616681 826716160 13158 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=24595/tid=24601] ppid=24584 vsize=807340 CPUtime=0
/proc/24595/task/24601/stat : 24601 (java) S 24584 24584 23813 0 -1 64 3 0 0 0 0 0 0 0 19 0 8 0 4616681 826716160 13158 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=24595/tid=24602] ppid=24584 vsize=807340 CPUtime=0
/proc/24595/task/24602/stat : 24602 (java) S 24584 24584 23813 0 -1 64 1 0 0 0 0 0 0 0 15 0 8 0 4616681 826716160 13158 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 2.48
Current children cumulated vsize (KiB) 821064

[startup+12.77 s]
/proc/loadavg: 5.75 4.15 2.95 4/97 24606
/proc/meminfo: memFree=127232/2055920 swapFree=4192812/4192956
[pid=24584] ppid=24582 vsize=32364 CPUtime=8.57
/proc/24584/stat : 24584 (sugar) S 24582 24584 23813 0 -1 4194304 5864 49219 4 35 32 3 765 57 15 0 1 0 4616253 33140736 5282 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 264916480098 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/24584/statm: 8091 5282 373 3 0 5191 0
[pid=24606] ppid=24584 vsize=807140 CPUtime=0.32
/proc/24606/stat : 24606 (java) R 24584 24584 23813 0 -1 0 5014 0 2 0 28 4 0 0 17 0 8 0 4617496 826511360 4764 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4073621653 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/24606/statm: 201785 4766 1476 14 0 189063 0
Current children cumulated CPU time (s) 8.89
Current children cumulated vsize (KiB) 839504

Child status: 0

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 24584 and gives childrusage.ru_utime.tv_sec=8 childrusage.ru_utime.tv_usec=4783 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=648901
CPU time returned by wait4() is 8.65368
while last known CPU time is 9.08

Solver probably didn't/couldn't wait for its children
Using last known CPU time as value...

Real time (s): 13.0011
CPU time (s): 9.08
CPU user time (s): 8.42
CPU system time (s): 0.66
CPU usage (%): 69.8401
Max. virtual memory (cumulated for all children) (KiB): 839504

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.00478
system time used= 0.648901
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 55171
page faults= 39
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 1538
involuntary context switches= 1698

runsolver used 0.022996 s user time and 0.039993 s system time

The end

Launcher Data (download as text)

Begin job on node30 on Mon Jan 29 22:08:41 UTC 2007


IDJOB= 237256
IDBENCH= 6909
IDSOLVER= 86
FILE ID= node30/237256-1170108520

PBS_JOBID= 3689871

Free space on /tmp= 61784 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/zhou/queens2.xml
COMMAND LINE= /tmp/evaluation/237256-1170108520/solver /tmp/evaluation/237256-1170108520 /tmp/evaluation/237256-1170108520/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node30/watcher-237256-1170108520 -o ROOT/results/node30/solver-237256-1170108520 -C 1800 -M 900  /tmp/evaluation/237256-1170108520/solver /tmp/evaluation/237256-1170108520 /tmp/evaluation/237256-1170108520/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  983aef29b4fcfd91366385dcfbd7a97c

RANDOM SEED= 110159960

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.270
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		: 3000.270
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:        504944 kB
Buffers:          3444 kB
Cached:        1243132 kB
SwapCached:          0 kB
Active:         252292 kB
Inactive:      1215752 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        504944 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:          706016 kB
Writeback:           0 kB
Mapped:         246956 kB
Slab:            67552 kB
Committed_AS:   789256 kB
PageTables:       2408 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= 61440 MiB



End job on node30 on Mon Jan 29 22:08:55 UTC 2007