Trace number 241706

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 1.1 1.29164

General information on the benchmark

Namebqwh/bqwh-18-141_glb/
bqwh-18-141-35_glb.xml
MD5SUM1adb272f60d5aadc0c6fc32395a5d119
Bench CategoryGLOBAL (global constraints)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.033993
SatisfiableYES
(Un)Satisfiability was proved
Number of variables141
Number of constraints36
Maximum constraint arity8
Maximum domain size7
Number of constraints which are defined in extension0
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)allDifferent(36)

Solver Data (download as text)

0.04	c # Sugar v0-40 (/tmp/evaluation/241706-1170109153/sugar-v0-40.jar)
0.04	
0.04	c # MAIN  BEGIN : /tmp/evaluation/241706-1170109153/unknown.xml [Mon Jan 29 23:19:19 2007]
0.04	c # CONVERT_XML  BEGIN : /tmp/evaluation/241706-1170109153/unknown.xml /tmp/evaluation/241706-1170109153/sugar26756.csp [Mon Jan 29 23:19:19 2007]
0.04	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/241706-1170109153/sugar-v0-40.jar -convert /tmp/evaluation/241706-1170109153/unknown.xml /tmp/evaluation/241706-1170109153/sugar26756.csp
0.15	c BEGIN convert /tmp/evaluation/241706-1170109153/unknown.xml
0.32	c END convert (0.168428 seconds)
0.37	c # CONVERT_XML  END : /tmp/evaluation/241706-1170109153/sugar26756.csp 24668 bytes (0 seconds) [Mon Jan 29 23:19:19 2007]
0.37	c # CONVERT_XML  CPU : 0.28 = 0 + 0.01 + 0.24 + 0.03
0.37	
0.38	c # GENERATE_SAT  BEGIN : /tmp/evaluation/241706-1170109153/sugar26756.bcnf [Mon Jan 29 23:19:19 2007]
0.38	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/241706-1170109153/sugar-v0-40.jar -bcnf -map /tmp/evaluation/241706-1170109153/sugar26756.map /tmp/evaluation/241706-1170109153/sugar26756.csp /tmp/evaluation/241706-1170109153/sugar26756.bcnf
0.49	c BEGIN parse /tmp/evaluation/241706-1170109153/sugar26756.csp
0.80	c END parse (0.314702 seconds)
0.80	c BEGIN simplify
0.83	c END simplify (0.025014 seconds)
0.83	c BEGIN encode /tmp/evaluation/241706-1170109153/sugar26756.bcnf
0.91	c END encode (0.083625 seconds)
0.93	c # GENERATE_SAT  END : 3419 variables 20233 clauses 303296 bytes (0 seconds) [Mon Jan 29 23:19:19 2007]
0.93	c # GENERATE_SAT  CPU : 0.01 = 0.01 + 0 + 0 + 0
0.93	
0.93	c # SOLVE_SAT  BEGIN : /tmp/evaluation/241706-1170109153/sugar26756.bcnf [Mon Jan 29 23:19:19 2007]
0.93	c # CMD : /tmp/evaluation/241706-1170109153/minisat /tmp/evaluation/241706-1170109153/sugar26756.bcnf /tmp/evaluation/241706-1170109153/sugar26756.out
0.95	c ==================================[MINISAT]===================================
0.95	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
0.95	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
0.95	c ==============================================================================
0.95	c |         0 |   20195    55528 |    6731       0        0     nan |  0.000 % |
0.96	c |       101 |   20197    55528 |    7404      98     1307    13.3 |  1.141 % |
0.99	c |       251 |   20202    55528 |    8144     243     3097    12.7 |  1.141 % |
1.00	c ==============================================================================
1.00	c restarts              : 3
1.00	c conflicts             : 318            (5048 /sec)
1.00	c decisions             : 572            (9081 /sec)
1.00	c propagations          : 156488         (2484331 /sec)
1.00	c conflict literals     : 3431           (14.88 % deleted)
1.00	c Memory used           : 2.53 MB
1.00	c CPU time              : 0.06299 s
1.00	c 
1.00	c SATISFIABLE
1.00	c # SOLVE_SAT  END : SATISFIABLE (0 seconds) [Mon Jan 29 23:19:19 2007]
1.00	c # SOLVE_SAT  CPU : 0.06 = 0 + 0 + 0.06 + 0
1.00	
1.00	c # RESULT : SATISFIABLE
1.00	
1.00	c # OUTPUT_SOL  BEGIN : SAT  [Mon Jan 29 23:19:19 2007]
1.11	c BEGIN read SAT output /tmp/evaluation/241706-1170109153/sugar26756.out
1.14	c END read SAT output (0.030437 seconds)
1.14	c BEGIN write solution /tmp/evaluation/241706-1170109153/sugar26756.sol
1.26	c END write solution (0.114724 seconds)
1.28	s SATISFIABLE
1.29	v 5 13 6 4 8 12 16 17 6 15 12 11 10 16 14 15 3 14 16 13 17 12 6 14 15 6 2 7 10 17 3 3 2 1 9 5 0 10 16 13 17 7 3 4 16 8 16 1 14 15 2 8 3 9 12 9 7 8 3 15 4 5 8 1 16 9 17 6 13 2 17 0 10 6 1 14 8 11 9 14 17 7 15 3 5 4 0 5 17 9 16 3 15 12 1 16 11 0 13 2 10 12 4 16 5 11 8 17 6 14 1 6 16 9 15 12 17 4 4 13 14 2 16 0 6 9 9 2 11 8 1 13 0 15 16 4 17 14 8 13 10
1.29	c # OUTPUT_SOL  END :  (1 seconds) [Mon Jan 29 23:19:20 2007]
1.29	c # OUTPUT_SOL  CPU : 0.01 = 0.01 + 0 + 0 + 0
1.29	
1.29	c # MAIN  END :  (1 seconds) [Mon Jan 29 23:19:20 2007]
1.29	c # MAIN  CPU : 0.36 = 0.02 + 0.01 + 0.3 + 0.03
1.29

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/node42/watcher-241706-1170109153 -o ROOT/results/node42/solver-241706-1170109153 -C 1800 -M 900 /tmp/evaluation/241706-1170109153/solver /tmp/evaluation/241706-1170109153 /tmp/evaluation/241706-1170109153/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: 0.51 3.38 3.80 2/68 26757
/proc/meminfo: memFree=1925240/2055920 swapFree=4192812/4192956
[pid=26756] ppid=26753 vsize=12272 CPUtime=0
/proc/26756/stat : 26756 (sugar) R 26753 26756 26400 0 -1 4194304 653 0 0 0 0 0 0 0 18 0 1 0 30871878 12566528 372 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 259414987489 0 0 4224 0 0 0 0 17 0 0 0
/proc/26756/statm: 3068 373 275 3 0 168 0

[startup+0.101862 s]
/proc/loadavg: 0.51 3.38 3.80 2/68 26757
/proc/meminfo: memFree=1925240/2055920 swapFree=4192812/4192956
[pid=26756] ppid=26753 vsize=13724 CPUtime=0.03
/proc/26756/stat : 26756 (sugar) S 26753 26756 26400 0 -1 4194304 1112 0 0 0 3 0 0 0 18 0 1 0 30871878 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 259424039010 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/26756/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13724

[startup+0.509939 s]
/proc/loadavg: 0.51 3.38 3.80 2/68 26757
/proc/meminfo: memFree=1925240/2055920 swapFree=4192812/4192956
[pid=26756] ppid=26753 vsize=13724 CPUtime=0.31
/proc/26756/stat : 26756 (sugar) S 26753 26756 26400 0 -1 4194304 1190 3691 0 1 3 1 24 3 15 0 1 0 30871878 14053376 809 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 259424039010 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/26756/statm: 3431 809 371 3 0 531 0
Current children cumulated CPU time (s) 0.31
Current children cumulated vsize (KiB) 13724

Child status: 0

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 26756 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=356945 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=52991
CPU time returned by wait4() is 0.409936
while last known CPU time is 1.1

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

Real time (s): 1.29164
CPU time (s): 1.1
CPU user time (s): 1.01
CPU system time (s): 0.09
CPU usage (%): 85.163
Max. virtual memory (cumulated for all children) (KiB): 821800

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.356945
system time used= 0.052991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5827
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= 264
involuntary context switches= 52

runsolver used 0.005999 s user time and 0.008998 s system time

The end

Launcher Data (download as text)

Begin job on node42 on Mon Jan 29 22:19:17 UTC 2007


IDJOB= 241706
IDBENCH= 7314
IDSOLVER= 86
FILE ID= node42/241706-1170109153

PBS_JOBID= 3689993

Free space on /tmp= 66564 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/bqwh/bqwh-18-141_glb/bqwh-18-141-35_glb.xml
COMMAND LINE= /tmp/evaluation/241706-1170109153/solver /tmp/evaluation/241706-1170109153 /tmp/evaluation/241706-1170109153/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node42/watcher-241706-1170109153 -o ROOT/results/node42/solver-241706-1170109153 -C 1800 -M 900  /tmp/evaluation/241706-1170109153/solver /tmp/evaluation/241706-1170109153 /tmp/evaluation/241706-1170109153/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  1adb272f60d5aadc0c6fc32395a5d119

RANDOM SEED= 726561595

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		: 3000.261
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		: 3000.261
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:       1925720 kB
Buffers:         20392 kB
Cached:          38292 kB
SwapCached:          0 kB
Active:          49612 kB
Inactive:        29208 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1925720 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             824 kB
Writeback:           0 kB
Mapped:          30396 kB
Slab:            37132 kB
Committed_AS:   488096 kB
PageTables:       1616 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= 66564 MiB



End job on node42 on Mon Jan 29 22:19:22 UTC 2007