Trace number 197403

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 1.13 1.47003

General information on the benchmark

Namebqwh/bqwh-18-141/
bqwh-18-141-55_ext.xml
MD5SUMa18c11efa333bfa3b5963ba40cd1bc48
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.088986
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables141
Number of constraints966
Maximum constraint arity2
Maximum domain size6
Number of constraints which are defined in extension966
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.05	c # Sugar v0-40 (/tmp/evaluation/197403-1170093070/sugar-v0-40.jar)
0.05	
0.05	c # MAIN  BEGIN : /tmp/evaluation/197403-1170093070/unknown.xml [Mon Jan 29 18:51:10 2007]
0.05	c # CONVERT_XML  BEGIN : /tmp/evaluation/197403-1170093070/unknown.xml /tmp/evaluation/197403-1170093070/sugar26806.csp [Mon Jan 29 18:51:10 2007]
0.05	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/197403-1170093070/sugar-v0-40.jar -convert /tmp/evaluation/197403-1170093070/unknown.xml /tmp/evaluation/197403-1170093070/sugar26806.csp
0.17	c BEGIN convert /tmp/evaluation/197403-1170093070/unknown.xml
0.52	c END convert (0.348747 seconds)
0.55	c # CONVERT_XML  END : /tmp/evaluation/197403-1170093070/sugar26806.csp 63743 bytes (1 seconds) [Mon Jan 29 18:51:11 2007]
0.55	c # CONVERT_XML  CPU : 0 = 0 + 0 + 0 + 0
0.55	
0.55	c # GENERATE_SAT  BEGIN : /tmp/evaluation/197403-1170093070/sugar26806.bcnf [Mon Jan 29 18:51:11 2007]
0.55	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/197403-1170093070/sugar-v0-40.jar -bcnf -map /tmp/evaluation/197403-1170093070/sugar26806.map /tmp/evaluation/197403-1170093070/sugar26806.csp /tmp/evaluation/197403-1170093070/sugar26806.bcnf
0.67	c BEGIN parse /tmp/evaluation/197403-1170093070/sugar26806.csp
1.13	c END parse (0.455413 seconds)
1.13	c BEGIN simplify
1.13	c END simplify (0.005096 seconds)
1.13	c BEGIN encode /tmp/evaluation/197403-1170093070/sugar26806.bcnf
1.18	c END encode (0.050723 seconds)
1.21	c # GENERATE_SAT  END : 1433 variables 3174 clauses 43928 bytes (0 seconds) [Mon Jan 29 18:51:11 2007]
1.21	c # GENERATE_SAT  CPU : 0.62 = 0.01 + 0 + 0.55 + 0.06
1.21	
1.21	c # SOLVE_SAT  BEGIN : /tmp/evaluation/197403-1170093070/sugar26806.bcnf [Mon Jan 29 18:51:11 2007]
1.21	c # CMD : /tmp/evaluation/197403-1170093070/minisat /tmp/evaluation/197403-1170093070/sugar26806.bcnf /tmp/evaluation/197403-1170093070/sugar26806.out
1.21	c ==================================[MINISAT]===================================
1.21	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
1.21	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
1.21	c ==============================================================================
1.21	c |         0 |    3174     7802 |    1058       0        0     nan |  0.000 % |
1.22	c |       101 |    3176     7802 |    1163      99      794     8.0 |  0.000 % |
1.23	c |       252 |    3180     7802 |    1280     246     2078     8.4 |  0.001 % |
1.24	c ==============================================================================
1.24	c restarts              : 3
1.24	c conflicts             : 476            (19043 /sec)
1.24	c decisions             : 631            (25244 /sec)
1.24	c propagations          : 101959         (4079013 /sec)
1.24	c conflict literals     : 3918           (28.84 % deleted)
1.24	c Memory used           : 1.75 MB
1.24	c CPU time              : 0.024996 s
1.24	c 
1.24	c SATISFIABLE
1.24	c # SOLVE_SAT  END : SATISFIABLE (0 seconds) [Mon Jan 29 18:51:11 2007]
1.24	c # SOLVE_SAT  CPU : 0.0299999999999999 = 0 + 0 + 0.0299999999999999 + 0
1.24	
1.24	c # RESULT : SATISFIABLE
1.24	
1.24	c # OUTPUT_SOL  BEGIN : SAT  [Mon Jan 29 18:51:11 2007]
1.36	c BEGIN read SAT output /tmp/evaluation/197403-1170093070/sugar26806.out
1.38	c END read SAT output (0.018314 seconds)
1.38	c BEGIN write solution /tmp/evaluation/197403-1170093070/sugar26806.sol
1.41	c END write solution (0.029967 seconds)
1.42	s SATISFIABLE
1.42	v 16 7 9 13 6 14 3 8 0 12 8 3 11 1 4 14 14 17 12 2 9 4 7 6 11 7 10 12 16 0 4 17 13 11 2 14 7 10 16 8 6 16 5 12 2 17 13 0 6 2 13 12 0 10 5 9 1 0 2 7 9 5 12 17 14 4 10 6 0 7 11 12 15 3 7 1 9 0 13 5 0 15 8 4 3 13 3 7 16 12 15 0 13 8 10 4 9 16 3 12 1 7 1 11 6 12 7 15 17 0 3 10 6 13 15 17 12 9 9 0 10 6 1 15 4 14 9 14 12 5 11 2 3 7 11 16 5 8 4 1 6
1.42	c # OUTPUT_SOL  END :  (1 seconds) [Mon Jan 29 18:51:12 2007]
1.42	c # OUTPUT_SOL  CPU : 0 = 0 + 0 + 0 + 0
1.42	
1.42	c # MAIN  END :  (2 seconds) [Mon Jan 29 18:51:12 2007]
1.42	c # MAIN  CPU : 0.65 = 0.01 + 0 + 0.58 + 0.06
1.42

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/node10/watcher-197403-1170093070 -o ROOT/results/node10/solver-197403-1170093070 -C 1800 -M 900 /tmp/evaluation/197403-1170093070/solver /tmp/evaluation/197403-1170093070 /tmp/evaluation/197403-1170093070/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: 2.10 2.77 2.50 3/95 26807
/proc/meminfo: memFree=15096/2055920 swapFree=4192812/4192956
[pid=26806] ppid=26804 vsize=880 CPUtime=0
/proc/26806/stat : 26806 (solver) R 26804 26806 26741 0 -1 4194304 41 0 0 0 0 0 0 0 20 0 1 0 29262025 901120 25 18446744073709551615 4194304 4889804 548682069296 18446744073709551615 214917248393 0 0 4096 0 0 0 0 17 1 0 0
/proc/26806/statm: 220 25 18 169 0 8 0

[startup+0.102902 s]
/proc/loadavg: 2.10 2.77 2.50 3/95 26807
/proc/meminfo: memFree=15096/2055920 swapFree=4192812/4192956
[pid=26806] ppid=26804 vsize=13724 CPUtime=0.03
/proc/26806/stat : 26806 (sugar) S 26804 26806 26741 0 -1 4194304 1112 0 0 0 3 0 0 0 20 0 1 0 29262025 14053376 805 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 214928765026 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/26806/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13724

[startup+0.510956 s]
/proc/loadavg: 2.10 2.77 2.50 3/95 26807
/proc/meminfo: memFree=15096/2055920 swapFree=4192812/4192956
[pid=26806] ppid=26804 vsize=13724 CPUtime=0.03
/proc/26806/stat : 26806 (sugar) S 26804 26806 26741 0 -1 4194304 1121 0 0 0 3 0 0 0 15 0 1 0 29262025 14053376 805 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 214928765026 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/26806/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13724

[startup+1.33607 s]
/proc/loadavg: 2.10 2.77 2.50 3/104 26823
/proc/meminfo: memFree=14960/2055920 swapFree=4192812/4192956
[pid=26806] ppid=26804 vsize=13856 CPUtime=0.68
/proc/26806/stat : 26806 (sugar) S 26804 26806 26741 0 -1 4194304 1386 7137 0 1 4 0 58 6 17 0 1 0 29262025 14188544 843 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 214928765026 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/26806/statm: 3464 843 373 3 0 564 0
[pid=26808] ppid=26806 vsize=0 CPUtime=0.45
/proc/26808/stat : 26808 (java) Z 26806 26806 26741 0 -1 1036 4559 0 1 0 43 2 0 0 16 0 1 0 29262031 0 0 18446744073709551615 0 0 0 0 0 0 4 0 23759 18446744071563351923 0 0 17 1 0 0
/proc/26808/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 1.13
Current children cumulated vsize (KiB) 13856

Child status: 0

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 26806 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=628904 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=78987
CPU time returned by wait4() is 0.707891
while last known CPU time is 1.13

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

Real time (s): 1.47003
CPU time (s): 1.13
CPU user time (s): 1.05
CPU system time (s): 0.08
CPU usage (%): 76.8693
Max. virtual memory (cumulated for all children) (KiB): 821056

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.628904
system time used= 0.078987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8620
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 603
involuntary context switches= 575

runsolver used 0.003999 s user time and 0.007998 s system time

The end

Launcher Data (download as text)

Begin job on node10 on Mon Jan 29 17:51:10 UTC 2007


IDJOB= 197403
IDBENCH= 3464
IDSOLVER= 86
FILE ID= node10/197403-1170093070

PBS_JOBID= 3689430

Free space on /tmp= 51746 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/bqwh/bqwh-18-141/bqwh-18-141-55_ext.xml
COMMAND LINE= /tmp/evaluation/197403-1170093070/solver /tmp/evaluation/197403-1170093070 /tmp/evaluation/197403-1170093070/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-197403-1170093070 -o ROOT/results/node10/solver-197403-1170093070 -C 1800 -M 900  /tmp/evaluation/197403-1170093070/solver /tmp/evaluation/197403-1170093070 /tmp/evaluation/197403-1170093070/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  a18c11efa333bfa3b5963ba40cd1bc48

RANDOM SEED= 698243459

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:         15960 kB
Buffers:          3460 kB
Cached:        1826080 kB
SwapCached:          0 kB
Active:         145380 kB
Inactive:      1798684 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:         15960 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:          827072 kB
Writeback:           0 kB
Mapped:         140080 kB
Slab:            80544 kB
Committed_AS:   559684 kB
PageTables:       2340 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= 51722 MiB



End job on node10 on Mon Jan 29 17:51:12 UTC 2007