Trace number 234022

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 1.31 1.65957

General information on the benchmark

Nametaillard/os-taillard-7/
os-taillard-7-105-9.xml
MD5SUMd340fc1ac2f2c727c0e970c336ce8909
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 benchmark0.049992
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables49
Number of constraints294
Maximum constraint arity2
Maximum domain size418
Number of constraints which are defined in extension0
Number of constraints which are defined in intension294
Global constraints used (with number of constraints)

Solver Data (download as text)

0.05	c # Sugar v0-40 (/tmp/evaluation/234022-1170106872/sugar-v0-40.jar)
0.05	
0.05	c # MAIN  BEGIN : /tmp/evaluation/234022-1170106872/unknown.xml [Mon Jan 29 22:41:13 2007]
0.05	c # CONVERT_XML  BEGIN : /tmp/evaluation/234022-1170106872/unknown.xml /tmp/evaluation/234022-1170106872/sugar24009.csp [Mon Jan 29 22:41:13 2007]
0.05	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/234022-1170106872/sugar-v0-40.jar -convert /tmp/evaluation/234022-1170106872/unknown.xml /tmp/evaluation/234022-1170106872/sugar24009.csp
0.17	c BEGIN convert /tmp/evaluation/234022-1170106872/unknown.xml
0.46	c END convert (0.285753 seconds)
0.50	c # CONVERT_XML  END : /tmp/evaluation/234022-1170106872/sugar24009.csp 14084 bytes (1 seconds) [Mon Jan 29 22:41:14 2007]
0.50	c # CONVERT_XML  CPU : 0 = 0 + 0 + 0 + 0
0.50	
0.50	c # GENERATE_SAT  BEGIN : /tmp/evaluation/234022-1170106872/sugar24009.bcnf [Mon Jan 29 22:41:14 2007]
0.50	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/234022-1170106872/sugar-v0-40.jar -bcnf -map /tmp/evaluation/234022-1170106872/sugar24009.map /tmp/evaluation/234022-1170106872/sugar24009.csp /tmp/evaluation/234022-1170106872/sugar24009.bcnf
0.62	c BEGIN parse /tmp/evaluation/234022-1170106872/sugar24009.csp
0.84	c END parse (0.221692 seconds)
0.84	c BEGIN simplify
0.85	c END simplify (0.011989 seconds)
0.85	c BEGIN encode /tmp/evaluation/234022-1170106872/sugar24009.bcnf
1.09	c END encode (0.237305 seconds)
1.11	c # GENERATE_SAT  END : 18626 variables 206587 clauses 3227580 bytes (0 seconds) [Mon Jan 29 22:41:14 2007]
1.11	c # GENERATE_SAT  CPU : 0.01 = 0.01 + 0 + 0 + 0
1.11	
1.11	c # SOLVE_SAT  BEGIN : /tmp/evaluation/234022-1170106872/sugar24009.bcnf [Mon Jan 29 22:41:14 2007]
1.11	c # CMD : /tmp/evaluation/234022-1170106872/minisat /tmp/evaluation/234022-1170106872/sugar24009.bcnf /tmp/evaluation/234022-1170106872/sugar24009.out
1.24	c ==================================[MINISAT]===================================
1.24	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
1.24	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
1.24	c ==============================================================================
1.24	c |         0 |  206587   600302 |   68862       0        0     nan |  0.000 % |
1.40	c ==============================================================================
1.40	c restarts              : 1
1.40	c conflicts             : 96             (358 /sec)
1.40	c decisions             : 256            (955 /sec)
1.40	c propagations          : 228314         (852048 /sec)
1.40	c conflict literals     : 2014           (27.97 % deleted)
1.40	c Memory used           : 11.86 MB
1.40	c CPU time              : 0.267959 s
1.40	c 
1.40	c SATISFIABLE
1.41	c # SOLVE_SAT  END : SATISFIABLE (1 seconds) [Mon Jan 29 22:41:15 2007]
1.41	c # SOLVE_SAT  CPU : 0.29 = 0 + 0 + 0.27 + 0.02
1.41	
1.41	c # RESULT : SATISFIABLE
1.41	
1.41	c # OUTPUT_SOL  BEGIN : SAT  [Mon Jan 29 22:41:15 2007]
1.53	c BEGIN read SAT output /tmp/evaluation/234022-1170106872/sugar24009.out
1.58	c END read SAT output (0.04641 seconds)
1.58	c BEGIN write solution /tmp/evaluation/234022-1170106872/sugar24009.sol
1.64	c END write solution (0.058774 seconds)
1.65	s SATISFIABLE
1.65	v 164 15 109 192 160 285 356 6 89 65 171 150 235 327 287 78 305 340 167 3 183 142 175 232 10 308 417 278 105 7 220 13 151 364 270 135 105 212 335 44 187 282 109 130 0 163 269 212 334
1.65	c # OUTPUT_SOL  END :  (0 seconds) [Mon Jan 29 22:41:15 2007]
1.65	c # OUTPUT_SOL  CPU : 0 = 0 + 0 + 0 + 0
1.65	
1.65	c # MAIN  END :  (2 seconds) [Mon Jan 29 22:41:15 2007]
1.65	c # MAIN  CPU : 0.3 = 0.01 + 0 + 0.27 + 0.02
1.65

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/node67/watcher-234022-1170106872 -o ROOT/results/node67/solver-234022-1170106872 -C 1800 -M 900 /tmp/evaluation/234022-1170106872/solver /tmp/evaluation/234022-1170106872 /tmp/evaluation/234022-1170106872/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: 1.65 2.07 2.56 5/75 24010
/proc/meminfo: memFree=1885040/2055920 swapFree=4192812/4192956
[pid=24009] ppid=24007 vsize=18540 CPUtime=0
/proc/24009/stat : 24009 (runsolver) R 24007 24009 23944 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 30644937 18984960 279 18446744073709551615 4194304 4267372 548682069040 18446744073709551615 271638392103 0 0 4096 24578 0 0 0 17 1 0 0
/proc/24009/statm: 4635 279 244 17 0 2626 0

[startup+0.110181 s]
/proc/loadavg: 1.65 2.07 2.56 5/75 24010
/proc/meminfo: memFree=1885040/2055920 swapFree=4192812/4192956
[pid=24009] ppid=24007 vsize=13724 CPUtime=0.04
/proc/24009/stat : 24009 (sugar) S 24007 24009 23944 0 -1 4194304 1112 0 0 0 3 1 0 0 20 0 1 0 30644937 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 271647289442 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/24009/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13724

[startup+0.518223 s]
/proc/loadavg: 1.65 2.07 2.56 5/75 24010
/proc/meminfo: memFree=1885040/2055920 swapFree=4192812/4192956
[pid=24009] ppid=24007 vsize=13724 CPUtime=0.04
/proc/24009/stat : 24009 (sugar) S 24007 24009 23944 0 -1 4194304 1178 0 0 0 3 1 0 0 16 0 1 0 30644937 14053376 808 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 271647289442 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/24009/statm: 3431 808 370 3 0 531 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13724

[startup+1.34132 s]
/proc/loadavg: 1.65 2.07 2.56 4/79 24027
/proc/meminfo: memFree=1874640/2055920 swapFree=4192812/4192956
[pid=24009] ppid=24007 vsize=14124 CPUtime=0.05
/proc/24009/stat : 24009 (sugar) S 24007 24009 23944 0 -1 4194304 1394 0 0 0 4 1 0 0 15 0 1 0 30644937 14462976 906 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 271647289442 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/24009/statm: 3531 906 373 3 0 631 0
[pid=24011] ppid=24009 vsize=0 CPUtime=0.39
/proc/24011/stat : 24011 (java) Z 24009 24009 23944 0 -1 1036 4046 0 1 0 36 3 0 0 17 0 1 0 30644942 0 0 18446744073709551615 0 0 0 0 0 0 4 0 23759 18446744071563351923 0 0 17 1 0 0
/proc/24011/statm: 0 0 0 0 0 0 0
[pid=24019] ppid=24009 vsize=0 CPUtime=0.58
/proc/24019/stat : 24019 (java) Z 24009 24009 23944 0 -1 1036 5225 0 1 0 53 5 0 0 18 0 2 0 30644987 0 0 18446744073709551615 0 0 0 0 0 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/24019/statm: 0 0 0 0 0 0 0
[pid=24027] ppid=24009 vsize=11812 CPUtime=0.22
/proc/24027/stat : 24027 (minisat) R 24009 24009 23944 0 -1 0 3375 0 0 0 20 2 0 0 18 0 1 0 30645048 12095488 2572 18446744073709551615 134512640 134974460 4294956768 18446744073709551615 134528707 0 0 4096 3 0 0 0 17 1 0 0
/proc/24027/statm: 2953 2572 49 112 0 2837 0
Current children cumulated CPU time (s) 1.24
Current children cumulated vsize (KiB) 25936

Child status: 0

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 24009 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=320951 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=41993
CPU time returned by wait4() is 0.362944
while last known CPU time is 1.31

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

Real time (s): 1.65957
CPU time (s): 1.31
CPU user time (s): 1.2
CPU system time (s): 0.11
CPU usage (%): 78.9361
Max. virtual memory (cumulated for all children) (KiB): 28392

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.320951
system time used= 0.041993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4969
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= 39

runsolver used 0.001999 s user time and 0.011998 s system time

The end

Launcher Data (download as text)

Begin job on node67 on Mon Jan 29 21:41:13 UTC 2007


IDJOB= 234022
IDBENCH= 6653
IDSOLVER= 86
FILE ID= node67/234022-1170106872

PBS_JOBID= 3689901

Free space on /tmp= 66560 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-7/os-taillard-7-105-9.xml
COMMAND LINE= /tmp/evaluation/234022-1170106872/solver /tmp/evaluation/234022-1170106872 /tmp/evaluation/234022-1170106872/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node67/watcher-234022-1170106872 -o ROOT/results/node67/solver-234022-1170106872 -C 1800 -M 900  /tmp/evaluation/234022-1170106872/solver /tmp/evaluation/234022-1170106872 /tmp/evaluation/234022-1170106872/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  d340fc1ac2f2c727c0e970c336ce8909

RANDOM SEED= 21142550

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		: 3000.236
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		: 3000.236
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:       1885520 kB
Buffers:         13556 kB
Cached:          63828 kB
SwapCached:          0 kB
Active:          80220 kB
Inactive:        37408 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1885520 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1084 kB
Writeback:           0 kB
Mapped:          51256 kB
Slab:            38068 kB
Committed_AS:   413780 kB
PageTables:       1868 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= 66560 MiB



End job on node67 on Mon Jan 29 21:41:16 UTC 2007