Trace number 210003

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 1.16 1.29909

General information on the benchmark

NameschurrLemma/
lemma-20-9-mod.xml
MD5SUM7add833502390878635fd0edd68b9d5e
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 benchmark1.15882
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables20
Number of constraints90
Maximum constraint arity3
Maximum domain size9
Number of constraints which are defined in extension0
Number of constraints which are defined in intension90
Global constraints used (with number of constraints)

Solver Data (download as text)

0.05	c # Sugar v0-40 (/tmp/evaluation/210003-1170097824/sugar-v0-40.jar)
0.05	
0.05	c # MAIN  BEGIN : /tmp/evaluation/210003-1170097824/unknown.xml [Mon Jan 29 20:10:25 2007]
0.05	c # CONVERT_XML  BEGIN : /tmp/evaluation/210003-1170097824/unknown.xml /tmp/evaluation/210003-1170097824/sugar21353.csp [Mon Jan 29 20:10:25 2007]
0.05	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/210003-1170097824/sugar-v0-40.jar -convert /tmp/evaluation/210003-1170097824/unknown.xml /tmp/evaluation/210003-1170097824/sugar21353.csp
0.18	c BEGIN convert /tmp/evaluation/210003-1170097824/unknown.xml
0.34	c END convert (0.158991 seconds)
0.34	c # CONVERT_XML  END : /tmp/evaluation/210003-1170097824/sugar21353.csp 4500 bytes (1 seconds) [Mon Jan 29 20:10:26 2007]
0.34	c # CONVERT_XML  CPU : 0 = 0 + 0 + 0 + 0
0.34	
0.34	c # GENERATE_SAT  BEGIN : /tmp/evaluation/210003-1170097824/sugar21353.bcnf [Mon Jan 29 20:10:26 2007]
0.34	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/210003-1170097824/sugar-v0-40.jar -bcnf -map /tmp/evaluation/210003-1170097824/sugar21353.map /tmp/evaluation/210003-1170097824/sugar21353.csp /tmp/evaluation/210003-1170097824/sugar21353.bcnf
0.47	c BEGIN parse /tmp/evaluation/210003-1170097824/sugar21353.csp
0.66	c END parse (0.188317 seconds)
0.66	c BEGIN simplify
0.67	c END simplify (0.011595 seconds)
0.67	c BEGIN encode /tmp/evaluation/210003-1170097824/sugar21353.bcnf
0.73	c END encode (0.058881 seconds)
0.75	c # GENERATE_SAT  END : 700 variables 5270 clauses 78384 bytes (0 seconds) [Mon Jan 29 20:10:26 2007]
0.75	c # GENERATE_SAT  CPU : 0.39 = 0.01 + 0.01 + 0.34 + 0.03
0.75	
0.75	c # SOLVE_SAT  BEGIN : /tmp/evaluation/210003-1170097824/sugar21353.bcnf [Mon Jan 29 20:10:26 2007]
0.75	c # CMD : /tmp/evaluation/210003-1170097824/minisat /tmp/evaluation/210003-1170097824/sugar21353.bcnf /tmp/evaluation/210003-1170097824/sugar21353.out
0.75	c ==================================[MINISAT]===================================
0.75	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
0.75	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
0.75	c ==============================================================================
0.75	c |         0 |    5270    14320 |    1756       0        0     nan |  0.000 % |
0.76	c |       101 |    5270    14320 |    1931     101      994     9.8 |  0.000 % |
0.76	c |       251 |    5270    14320 |    2124     251     2030     8.1 |  0.000 % |
0.77	c |       478 |    5270    14320 |    2337     478     3483     7.3 |  0.000 % |
0.78	c |       815 |    5270    14320 |    2570     815     6181     7.6 |  0.001 % |
0.81	c |      1322 |    5270    14320 |    2828    1322    10430     7.9 |  0.001 % |
0.84	c |      2082 |    5270    14320 |    3110    2082    16049     7.7 |  0.001 % |
0.88	c |      3221 |    5271    14320 |    3421    3220    25297     7.9 |  0.003 % |
0.96	c |      4930 |    5271    14320 |    3764    3194    22617     7.1 |  0.001 % |
1.06	c |      7497 |    5271    14320 |    4140    1934    13376     6.9 |  0.001 % |
1.22	c |     11341 |    5275    14320 |    4554    3662    25745     7.0 |  0.004 % |
1.29	c ==============================================================================
1.29	c restarts              : 11
1.29	c conflicts             : 13380          (24967 /sec)
1.29	c decisions             : 16580          (30938 /sec)
1.29	c propagations          : 851755         (1589338 /sec)
1.29	c conflict literals     : 101264         (8.24 % deleted)
1.29	c Memory used           : 2.14 MB
1.29	c CPU time              : 0.535918 s
1.29	c 
1.29	c UNSATISFIABLE
1.29	c # SOLVE_SAT  END : UNSATISFIABLE (0 seconds) [Mon Jan 29 20:10:26 2007]
1.29	c # SOLVE_SAT  CPU : 0.54 = 0 + 0 + 0.54 + 0
1.29	
1.29	c # RESULT : UNSATISFIABLE
1.29	
1.29	c # OUTPUT_SOL  BEGIN : UNSAT  [Mon Jan 29 20:10:26 2007]
1.29	s UNSATISFIABLE
1.29	c # OUTPUT_SOL  END :  (0 seconds) [Mon Jan 29 20:10:26 2007]
1.29	c # OUTPUT_SOL  CPU : 0 = 0 + 0 + 0 + 0
1.29	
1.29	c # MAIN  END :  (1 seconds) [Mon Jan 29 20:10:26 2007]
1.29	c # MAIN  CPU : 0.93 = 0.01 + 0.01 + 0.88 + 0.03
1.29

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/node66/watcher-210003-1170097824 -o ROOT/results/node66/solver-210003-1170097824 -C 1800 -M 900 /tmp/evaluation/210003-1170097824/solver /tmp/evaluation/210003-1170097824 /tmp/evaluation/210003-1170097824/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: 2.11 2.05 2.06 3/75 21354
/proc/meminfo: memFree=1879744/2055920 swapFree=4192812/4192956
[pid=21353] ppid=21351 vsize=880 CPUtime=0
/proc/21353/stat : 21353 (solver) R 21351 21353 20430 0 -1 4194304 41 0 0 0 0 0 0 0 20 0 1 0 29740049 901120 25 18446744073709551615 4194304 4889804 548682069296 18446744073709551615 227605017993 0 0 4096 0 0 0 0 17 1 0 0
/proc/21353/statm: 220 25 18 169 0 8 0

[startup+0.103014 s]
/proc/loadavg: 2.11 2.05 2.06 3/75 21354
/proc/meminfo: memFree=1879744/2055920 swapFree=4192812/4192956
[pid=21353] ppid=21351 vsize=13724 CPUtime=0.03
/proc/21353/stat : 21353 (sugar) S 21351 21353 20430 0 -1 4194304 1112 0 0 0 3 0 0 0 18 0 1 0 29740049 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 227616534626 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/21353/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13724

[startup+0.511095 s]
/proc/loadavg: 2.11 2.05 2.06 3/75 21354
/proc/meminfo: memFree=1879744/2055920 swapFree=4192812/4192956
[pid=21353] ppid=21351 vsize=13724 CPUtime=0.03
/proc/21353/stat : 21353 (sugar) S 21351 21353 20430 0 -1 4194304 1188 0 0 0 3 0 0 0 15 0 1 0 29740049 14053376 808 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 227616534626 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/21353/statm: 3431 808 370 3 0 531 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13724

Child status: 0

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 21353 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=925859 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=50992
CPU time returned by wait4() is 0.976851
while last known CPU time is 1.16

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

Real time (s): 1.29909
CPU time (s): 1.16
CPU user time (s): 1.09
CPU system time (s): 0.07
CPU usage (%): 89.2929
Max. virtual memory (cumulated for all children) (KiB): 16180

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.925859
system time used= 0.050992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6525
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= 497
involuntary context switches= 467

runsolver used 0.008998 s user time and 0.007998 s system time

The end

Launcher Data (download as text)

Begin job on node66 on Mon Jan 29 19:10:25 UTC 2007


IDJOB= 210003
IDBENCH= 4586
IDSOLVER= 86
FILE ID= node66/210003-1170097824

PBS_JOBID= 3689576

Free space on /tmp= 66560 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/schurrLemma/lemma-20-9-mod.xml
COMMAND LINE= /tmp/evaluation/210003-1170097824/solver /tmp/evaluation/210003-1170097824 /tmp/evaluation/210003-1170097824/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node66/watcher-210003-1170097824 -o ROOT/results/node66/solver-210003-1170097824 -C 1800 -M 900  /tmp/evaluation/210003-1170097824/solver /tmp/evaluation/210003-1170097824 /tmp/evaluation/210003-1170097824/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  7add833502390878635fd0edd68b9d5e

RANDOM SEED= 853084638

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		: 3000.259
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	: 5931.00
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		: 3000.259
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:       1880224 kB
Buffers:         26624 kB
Cached:          47700 kB
SwapCached:          0 kB
Active:          88380 kB
Inactive:        37424 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1880224 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             768 kB
Writeback:           0 kB
Mapped:          62488 kB
Slab:            35208 kB
Committed_AS:   142820 kB
PageTables:       1800 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 node66 on Mon Jan 29 19:10:26 UTC 2007