Trace number 218926

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 0.40UNSAT 1.21 1.60612

General information on the benchmark

NamechessboardColoration/
cc-7-7-2.xml
MD5SUM1380713e8b92d45d51085dc26e0f4ecf
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.135978
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables49
Number of constraints441
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension441
Global constraints used (with number of constraints)

Solver Data (download as text)

0.05	c # Sugar v0-40 (/tmp/evaluation/218926-1170102345/sugar-v0-40.jar)
0.05	
0.05	c # MAIN  BEGIN : /tmp/evaluation/218926-1170102345/unknown.xml [Mon Jan 29 21:25:45 2007]
0.05	c # CONVERT_XML  BEGIN : /tmp/evaluation/218926-1170102345/unknown.xml /tmp/evaluation/218926-1170102345/sugar30717.csp [Mon Jan 29 21:25:45 2007]
0.05	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/218926-1170102345/sugar-v0-40.jar -convert /tmp/evaluation/218926-1170102345/unknown.xml /tmp/evaluation/218926-1170102345/sugar30717.csp
0.17	c BEGIN convert /tmp/evaluation/218926-1170102345/unknown.xml
0.52	c END convert (0.349314 seconds)
0.55	c # CONVERT_XML  END : /tmp/evaluation/218926-1170102345/sugar30717.csp 45558 bytes (1 seconds) [Mon Jan 29 21:25:46 2007]
0.55	c # CONVERT_XML  CPU : 0 = 0 + 0 + 0 + 0
0.55	
0.55	c # GENERATE_SAT  BEGIN : /tmp/evaluation/218926-1170102345/sugar30717.bcnf [Mon Jan 29 21:25:46 2007]
0.55	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/218926-1170102345/sugar-v0-40.jar -bcnf -map /tmp/evaluation/218926-1170102345/sugar30717.map /tmp/evaluation/218926-1170102345/sugar30717.csp /tmp/evaluation/218926-1170102345/sugar30717.bcnf
0.67	c BEGIN parse /tmp/evaluation/218926-1170102345/sugar30717.csp
1.10	c END parse (0.424116 seconds)
1.10	c BEGIN simplify
1.13	c END simplify (0.036124 seconds)
1.13	c BEGIN encode /tmp/evaluation/218926-1170102345/sugar30717.bcnf
1.24	c END encode (0.104069 seconds)
1.31	c # GENERATE_SAT  END : 5341 variables 11025 clauses 149964 bytes (0 seconds) [Mon Jan 29 21:25:46 2007]
1.31	c # GENERATE_SAT  CPU : 0.05 = 0.05 + 0 + 0 + 0
1.31	
1.31	c # SOLVE_SAT  BEGIN : /tmp/evaluation/218926-1170102345/sugar30717.bcnf [Mon Jan 29 21:25:46 2007]
1.31	c # CMD : /tmp/evaluation/218926-1170102345/minisat /tmp/evaluation/218926-1170102345/sugar30717.bcnf /tmp/evaluation/218926-1170102345/sugar30717.out
1.32	c ==================================[MINISAT]===================================
1.32	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
1.32	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
1.32	c ==============================================================================
1.32	c |         0 |   11025    26460 |    3675       0        0     nan |  0.000 % |
1.32	c |       100 |   11025    26460 |    4042     100     1408    14.1 |  0.000 % |
1.33	c |       250 |   11025    26460 |    4446     250     3113    12.5 |  0.000 % |
1.35	c |       478 |   11025    26460 |    4891     478     6944    14.5 |  0.000 % |
1.37	c |       815 |   11025    26460 |    5380     815    13738    16.9 |  0.000 % |
1.41	c |      1322 |   11026    26460 |    5918    1321    20451    15.5 |  0.001 % |
1.50	c |      2081 |   11028    26460 |    6510    2078    32747    15.8 |  0.001 % |
1.60	c ==============================================================================
1.60	c restarts              : 7
1.60	c conflicts             : 2713           (9761 /sec)
1.60	c decisions             : 12564          (45201 /sec)
1.60	c propagations          : 1250124        (4497545 /sec)
1.60	c conflict literals     : 40464          (31.15 % deleted)
1.60	c Memory used           : 2.31 MB
1.60	c CPU time              : 0.277957 s
1.60	c 
1.60	c UNSATISFIABLE
1.60	c # SOLVE_SAT  END : UNSATISFIABLE (1 seconds) [Mon Jan 29 21:25:47 2007]
1.60	c # SOLVE_SAT  CPU : 0.27 = 0 + 0 + 0.27 + 0
1.60	
1.60	c # RESULT : UNSATISFIABLE
1.60	
1.60	c # OUTPUT_SOL  BEGIN : UNSAT  [Mon Jan 29 21:25:47 2007]
1.60	s UNSATISFIABLE
1.60	c # OUTPUT_SOL  END :  (0 seconds) [Mon Jan 29 21:25:47 2007]
1.60	c # OUTPUT_SOL  CPU : 0 = 0 + 0 + 0 + 0
1.60	
1.60	c # MAIN  END :  (2 seconds) [Mon Jan 29 21:25:47 2007]
1.60	c # MAIN  CPU : 0.32 = 0.05 + 0 + 0.27 + 0
1.60

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node10/watcher-218926-1170102345 -o ROOT/results/node10/solver-218926-1170102345 -C 1800 -M 900 /tmp/evaluation/218926-1170102345/solver /tmp/evaluation/218926-1170102345 /tmp/evaluation/218926-1170102345/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: 2.15 3.04 3.02 3/94 30718
/proc/meminfo: memFree=1322632/2055920 swapFree=4192812/4192956
[pid=30717] ppid=30715 vsize=18540 CPUtime=0
/proc/30717/stat : 30717 (runsolver) R 30715 30717 30444 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 30189505 18984960 279 18446744073709551615 4194304 4267372 548682069040 18446744073709551615 214919867687 0 0 4096 24578 0 0 0 17 1 0 0
/proc/30717/statm: 4635 279 244 17 0 2626 0

[startup+0.102324 s]
/proc/loadavg: 2.15 3.04 3.02 3/94 30718
/proc/meminfo: memFree=1322632/2055920 swapFree=4192812/4192956
[pid=30717] ppid=30715 vsize=13724 CPUtime=0.04
/proc/30717/stat : 30717 (sugar) S 30715 30717 30444 0 -1 4194304 1112 0 0 0 3 1 0 0 20 0 1 0 30189505 14053376 805 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 214928765026 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/30717/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13724

[startup+0.510377 s]
/proc/loadavg: 2.15 3.04 3.02 3/94 30718
/proc/meminfo: memFree=1322632/2055920 swapFree=4192812/4192956
[pid=30717] ppid=30715 vsize=13724 CPUtime=0.04
/proc/30717/stat : 30717 (sugar) S 30715 30717 30444 0 -1 4194304 1121 0 0 0 3 1 0 0 15 0 1 0 30189505 14053376 805 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 214928765026 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/30717/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13724

[startup+1.33649 s]
/proc/loadavg: 2.22 3.04 3.02 4/103 30734
/proc/meminfo: memFree=1301312/2055920 swapFree=4192812/4192956
[pid=30717] ppid=30715 vsize=16716 CPUtime=0.09
/proc/30717/stat : 30717 (sugar) S 30715 30717 30444 0 -1 4194304 2021 0 0 0 8 1 0 0 16 0 1 0 30189505 17117184 1532 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 214928765026 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/30717/statm: 4179 1532 373 3 0 1279 0
[pid=30719] ppid=30717 vsize=0 CPUtime=0.45
/proc/30719/stat : 30719 (java) Z 30717 30717 30444 0 -1 1036 4442 0 1 0 42 3 0 0 16 0 1 0 30189510 0 0 18446744073709551615 0 0 0 0 0 0 4 0 23759 18446744071563351923 0 0 17 1 0 0
/proc/30719/statm: 0 0 0 0 0 0 0
[pid=30727] ppid=30717 vsize=0 CPUtime=0.67
/proc/30727/stat : 30727 (java) Z 30717 30717 30444 0 -1 1036 7230 0 1 0 62 5 0 0 17 0 2 0 30189561 0 0 18446744073709551615 0 0 0 0 0 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/30727/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 1.21
Current children cumulated vsize (KiB) 16716

Child status: 0

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 30717 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=364944 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=22996
CPU time returned by wait4() is 0.38794
while last known CPU time is 1.21

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

Real time (s): 1.60612
CPU time (s): 1.21
CPU user time (s): 1.12
CPU system time (s): 0.09
CPU usage (%): 75.3367
Max. virtual memory (cumulated for all children) (KiB): 821080

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.364944
system time used= 0.022996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2422
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= 57
involuntary context switches= 75

runsolver used 0.006998 s user time and 0.009998 s system time

The end

Launcher Data (download as text)

Begin job on node10 on Mon Jan 29 20:25:45 UTC 2007


IDJOB= 218926
IDBENCH= 5266
IDSOLVER= 86
FILE ID= node10/218926-1170102345

PBS_JOBID= 3689538

Free space on /tmp= 66552 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/chessboardColoration/cc-7-7-2.xml
COMMAND LINE= /tmp/evaluation/218926-1170102345/solver /tmp/evaluation/218926-1170102345 /tmp/evaluation/218926-1170102345/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-218926-1170102345 -o ROOT/results/node10/solver-218926-1170102345 -C 1800 -M 900  /tmp/evaluation/218926-1170102345/solver /tmp/evaluation/218926-1170102345 /tmp/evaluation/218926-1170102345/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  1380713e8b92d45d51085dc26e0f4ecf

RANDOM SEED= 708390665

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		: 3000.232
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		: 3000.232
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:       1323048 kB
Buffers:         31032 kB
Cached:          46828 kB
SwapCached:          0 kB
Active:         637912 kB
Inactive:        40384 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1323048 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1060 kB
Writeback:           0 kB
Mapped:         625904 kB
Slab:            38068 kB
Committed_AS:  1171840 kB
PageTables:       3320 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= 66552 MiB



End job on node10 on Mon Jan 29 20:25:47 UTC 2007