Trace number 234811

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 0.92 1.13729

General information on the benchmark

Nametaillard/os-taillard-5/
os-taillard-5-100-7.xml
MD5SUMd5081a0ba82d7a928e9ef02f0cd66b7c
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 benchmark0.100984
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables25
Number of constraints100
Maximum constraint arity2
Maximum domain size297
Number of constraints which are defined in extension0
Number of constraints which are defined in intension100
Global constraints used (with number of constraints)

Solver Data (download as text)

0.05	c # Sugar v0-40 (/tmp/evaluation/234811-1170107033/sugar-v0-40.jar)
0.05	
0.05	c # MAIN  BEGIN : /tmp/evaluation/234811-1170107033/unknown.xml [Mon Jan 29 22:43:55 2007]
0.05	c # CONVERT_XML  BEGIN : /tmp/evaluation/234811-1170107033/unknown.xml /tmp/evaluation/234811-1170107033/sugar29165.csp [Mon Jan 29 22:43:55 2007]
0.05	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/234811-1170107033/sugar-v0-40.jar -convert /tmp/evaluation/234811-1170107033/unknown.xml /tmp/evaluation/234811-1170107033/sugar29165.csp
0.17	c BEGIN convert /tmp/evaluation/234811-1170107033/unknown.xml
0.35	c END convert (0.185598 seconds)
0.39	c # CONVERT_XML  END : /tmp/evaluation/234811-1170107033/sugar29165.csp 4872 bytes (1 seconds) [Mon Jan 29 22:43:56 2007]
0.39	c # CONVERT_XML  CPU : 0 = 0 + 0 + 0 + 0
0.39	
0.39	c # GENERATE_SAT  BEGIN : /tmp/evaluation/234811-1170107033/sugar29165.bcnf [Mon Jan 29 22:43:56 2007]
0.39	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/234811-1170107033/sugar-v0-40.jar -bcnf -map /tmp/evaluation/234811-1170107033/sugar29165.map /tmp/evaluation/234811-1170107033/sugar29165.csp /tmp/evaluation/234811-1170107033/sugar29165.bcnf
0.51	c BEGIN parse /tmp/evaluation/234811-1170107033/sugar29165.csp
0.64	c END parse (0.136463 seconds)
0.64	c BEGIN simplify
0.65	c END simplify (0.005465 seconds)
0.65	c BEGIN encode /tmp/evaluation/234811-1170107033/sugar29165.bcnf
0.74	c END encode (0.086359 seconds)
0.78	c # GENERATE_SAT  END : 6374 variables 45433 clauses 700356 bytes (0 seconds) [Mon Jan 29 22:43:56 2007]
0.78	c # GENERATE_SAT  CPU : 0 = 0 + 0 + 0 + 0
0.78	
0.78	c # SOLVE_SAT  BEGIN : /tmp/evaluation/234811-1170107033/sugar29165.bcnf [Mon Jan 29 22:43:56 2007]
0.78	c # CMD : /tmp/evaluation/234811-1170107033/minisat /tmp/evaluation/234811-1170107033/sugar29165.bcnf /tmp/evaluation/234811-1170107033/sugar29165.out
0.81	c ==================================[MINISAT]===================================
0.81	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
0.81	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
0.81	c ==============================================================================
0.81	c |         0 |   45433   129650 |   15144       0        0     nan |  0.000 % |
0.85	c |       101 |   45433   129650 |   16658     101      749     7.4 |  0.000 % |
0.89	c ==============================================================================
0.89	c restarts              : 2
0.89	c conflicts             : 168            (1788 /sec)
0.89	c decisions             : 241            (2564 /sec)
0.89	c propagations          : 188668         (2007427 /sec)
0.89	c conflict literals     : 1255           (33.84 % deleted)
0.89	c Memory used           : 3.88 MB
0.89	c CPU time              : 0.093985 s
0.89	c 
0.89	c SATISFIABLE
0.89	c # SOLVE_SAT  END : SATISFIABLE (0 seconds) [Mon Jan 29 22:43:56 2007]
0.89	c # SOLVE_SAT  CPU : 0.09 = 0 + 0 + 0.09 + 0
0.89	
0.89	c # RESULT : SATISFIABLE
0.89	
0.89	c # OUTPUT_SOL  BEGIN : SAT  [Mon Jan 29 22:43:56 2007]
1.02	c BEGIN read SAT output /tmp/evaluation/234811-1170107033/sugar29165.out
1.05	c END read SAT output (0.03513 seconds)
1.05	c BEGIN write solution /tmp/evaluation/234811-1170107033/sugar29165.sol
1.08	c END write solution (0.026278 seconds)
1.13	s SATISFIABLE
1.13	v 3 168 236 92 198 52 0 236 198 134 0 190 82 282 161 286 227 89 158 2 141 242 97 296 70
1.13	c # OUTPUT_SOL  END :  (0 seconds) [Mon Jan 29 22:43:56 2007]
1.13	c # OUTPUT_SOL  CPU : 0 = 0 + 0 + 0 + 0
1.13	
1.13	c # MAIN  END :  (1 seconds) [Mon Jan 29 22:43:56 2007]
1.13	c # MAIN  CPU : 0.09 = 0 + 0 + 0.09 + 0
1.13

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/node3/watcher-234811-1170107033 -o ROOT/results/node3/solver-234811-1170107033 -C 1800 -M 900 /tmp/evaluation/234811-1170107033/solver /tmp/evaluation/234811-1170107033 /tmp/evaluation/234811-1170107033/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: 2.08 2.47 2.81 5/88 29166
/proc/meminfo: memFree=1857456/2055920 swapFree=4192812/4192956
[pid=29165] ppid=29163 vsize=6268 CPUtime=0
/proc/29165/stat : 29165 (sugar) R 29163 29165 28892 0 -1 4194304 311 0 0 0 0 0 0 0 20 0 1 0 30658376 6418432 47 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 233630135689 0 0 4096 0 0 0 0 17 1 0 0
/proc/29165/statm: 1567 47 36 3 0 8 0

[startup+0.105765 s]
/proc/loadavg: 2.08 2.47 2.81 5/88 29166
/proc/meminfo: memFree=1857456/2055920 swapFree=4192812/4192956
[pid=29165] ppid=29163 vsize=13724 CPUtime=0.04
/proc/29165/stat : 29165 (sugar) S 29163 29165 28892 0 -1 4194304 1112 0 0 0 3 1 0 0 20 0 1 0 30658376 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 233641652322 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/29165/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13724

[startup+0.513794 s]
/proc/loadavg: 2.08 2.47 2.81 5/88 29166
/proc/meminfo: memFree=1857456/2055920 swapFree=4192812/4192956
[pid=29165] ppid=29163 vsize=13724 CPUtime=0.04
/proc/29165/stat : 29165 (sugar) S 29163 29165 28892 0 -1 4194304 1188 0 0 0 3 1 0 0 15 0 1 0 30658376 14053376 808 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 233641652322 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/29165/statm: 3431 808 370 3 0 531 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13724

Child status: 0

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 29165 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=132979 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=23996
CPU time returned by wait4() is 0.156975
while last known CPU time is 0.92

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

Real time (s): 1.13729
CPU time (s): 0.92
CPU user time (s): 0.85
CPU system time (s): 0.07
CPU usage (%): 80.894
Max. virtual memory (cumulated for all children) (KiB): 820860

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.132979
system time used= 0.023996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2322
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= 63
involuntary context switches= 34

runsolver used 0.004999 s user time and 0.009998 s system time

The end

Launcher Data (download as text)

Begin job on node3 on Mon Jan 29 21:43:54 UTC 2007


IDJOB= 234811
IDBENCH= 6713
IDSOLVER= 86
FILE ID= node3/234811-1170107033

PBS_JOBID= 3689908

Free space on /tmp= 66549 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-5/os-taillard-5-100-7.xml
COMMAND LINE= /tmp/evaluation/234811-1170107033/solver /tmp/evaluation/234811-1170107033 /tmp/evaluation/234811-1170107033/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-234811-1170107033 -o ROOT/results/node3/solver-234811-1170107033 -C 1800 -M 900  /tmp/evaluation/234811-1170107033/solver /tmp/evaluation/234811-1170107033 /tmp/evaluation/234811-1170107033/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  d5081a0ba82d7a928e9ef02f0cd66b7c

RANDOM SEED= 662479906

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		: 3000.241
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		: 3000.241
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:       1857936 kB
Buffers:          7580 kB
Cached:          40972 kB
SwapCached:          0 kB
Active:         148356 kB
Inactive:        11956 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1857936 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1168 kB
Writeback:           0 kB
Mapped:         131460 kB
Slab:            22620 kB
Committed_AS:   624184 kB
PageTables:       2124 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= 66549 MiB



End job on node3 on Mon Jan 29 21:43:56 UTC 2007