Trace number 199239

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 1.45678 1.51711

General information on the benchmark

Nameknights/
knights-20-5.xml
MD5SUM5042df59376f87303bcd262d9d1478d3
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.84787
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables5
Number of constraints10
Maximum constraint arity2
Maximum domain size400
Number of constraints which are defined in extension0
Number of constraints which are defined in intension10
Global constraints used (with number of constraints)

Solver Data (download as text)

0.04	c # Sugar v0-40 (/tmp/evaluation/199239-1170094068/sugar-v0-40.jar)
0.04	
0.04	c # MAIN  BEGIN : /tmp/evaluation/199239-1170094068/unknown.xml [Mon Jan 29 19:07:49 2007]
0.04	c # CONVERT_XML  BEGIN : /tmp/evaluation/199239-1170094068/unknown.xml /tmp/evaluation/199239-1170094068/sugar22190.csp [Mon Jan 29 19:07:49 2007]
0.04	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/199239-1170094068/sugar-v0-40.jar -convert /tmp/evaluation/199239-1170094068/unknown.xml /tmp/evaluation/199239-1170094068/sugar22190.csp
0.15	c BEGIN convert /tmp/evaluation/199239-1170094068/unknown.xml
0.24	c END convert (0.085582 seconds)
0.27	c # CONVERT_XML  END : /tmp/evaluation/199239-1170094068/sugar22190.csp 945 bytes (0 seconds) [Mon Jan 29 19:07:49 2007]
0.27	c # CONVERT_XML  CPU : 0.18 = 0 + 0 + 0.17 + 0.01
0.27	
0.27	c # GENERATE_SAT  BEGIN : /tmp/evaluation/199239-1170094068/sugar22190.bcnf [Mon Jan 29 19:07:49 2007]
0.27	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/199239-1170094068/sugar-v0-40.jar -bcnf -map /tmp/evaluation/199239-1170094068/sugar22190.map /tmp/evaluation/199239-1170094068/sugar22190.csp /tmp/evaluation/199239-1170094068/sugar22190.bcnf
0.38	c BEGIN parse /tmp/evaluation/199239-1170094068/sugar22190.csp
0.45	c END parse (0.075296 seconds)
0.45	c BEGIN simplify
0.46	c END simplify (0.001323 seconds)
0.46	c BEGIN encode /tmp/evaluation/199239-1170094068/sugar22190.bcnf
0.58	c END encode (0.125114 seconds)
0.60	c # GENERATE_SAT  END : 2605 variables 98750 clauses 1579424 bytes (1 seconds) [Mon Jan 29 19:07:50 2007]
0.60	c # GENERATE_SAT  CPU : 0.31 = 0 + 0 + 0.28 + 0.03
0.60	
0.60	c # SOLVE_SAT  BEGIN : /tmp/evaluation/199239-1170094068/sugar22190.bcnf [Mon Jan 29 19:07:50 2007]
0.60	c # CMD : /tmp/evaluation/199239-1170094068/minisat /tmp/evaluation/199239-1170094068/sugar22190.bcnf /tmp/evaluation/199239-1170094068/sugar22190.out
0.65	c ==================================[MINISAT]===================================
0.65	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
0.65	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
0.65	c ==============================================================================
0.65	c |         0 |   98750   296100 |   32916       0        0     nan |  0.000 % |
0.70	c |       100 |   98292   294960 |   36207      96      687     7.2 |  2.962 % |
0.79	c |       251 |   98292   294960 |   39828     247     2078     8.4 |  2.957 % |
0.90	c |       477 |   98292   294960 |   43811     473     4248     9.0 |  2.957 % |
1.07	c |       815 |   97035   291388 |   48192     809     7267     9.0 |  2.958 % |
1.26	c |      1322 |   97036   291388 |   53011    1312    11460     8.7 |  5.030 % |
1.51	c ==============================================================================
1.51	c restarts              : 6
1.51	c conflicts             : 1895           (2127 /sec)
1.51	c decisions             : 2402           (2696 /sec)
1.51	c propagations          : 965952         (1084287 /sec)
1.51	c conflict literals     : 15569          (20.62 % deleted)
1.51	c Memory used           : 5.78 MB
1.51	c CPU time              : 0.890864 s
1.51	c 
1.51	c UNSATISFIABLE
1.51	c # SOLVE_SAT  END : UNSATISFIABLE (1 seconds) [Mon Jan 29 19:07:51 2007]
1.51	c # SOLVE_SAT  CPU : 0.9 = 0 + 0 + 0.89 + 0.01
1.51	
1.51	c # RESULT : UNSATISFIABLE
1.51	
1.51	c # OUTPUT_SOL  BEGIN : UNSAT  [Mon Jan 29 19:07:51 2007]
1.51	s UNSATISFIABLE
1.51	c # OUTPUT_SOL  END :  (0 seconds) [Mon Jan 29 19:07:51 2007]
1.51	c # OUTPUT_SOL  CPU : 0 = 0 + 0 + 0 + 0
1.51	
1.51	c # MAIN  END :  (2 seconds) [Mon Jan 29 19:07:51 2007]
1.51	c # MAIN  CPU : 1.39 = 0 + 0 + 1.34 + 0.05
1.51

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/node75/watcher-199239-1170094068 -o ROOT/results/node75/solver-199239-1170094068 -C 1800 -M 900 /tmp/evaluation/199239-1170094068/solver /tmp/evaluation/199239-1170094068 /tmp/evaluation/199239-1170094068/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: 2.51 3.01 3.03 3/82 22191
/proc/meminfo: memFree=1465872/2055920 swapFree=4192956/4192956
[pid=22190] ppid=22188 vsize=12272 CPUtime=0
/proc/22190/stat : 22190 (sugar) R 22188 22190 21647 0 -1 4194304 644 0 0 0 0 0 0 0 18 0 1 0 29372741 12566528 363 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 231891581950 0 0 4224 0 0 0 0 17 0 0 0
/proc/22190/statm: 3068 363 274 3 0 168 0

[startup+0.103506 s]
/proc/loadavg: 2.51 3.01 3.03 3/82 22191
/proc/meminfo: memFree=1465872/2055920 swapFree=4192956/4192956
[pid=22190] ppid=22188 vsize=13724 CPUtime=0.04
/proc/22190/stat : 22190 (sugar) S 22188 22190 21647 0 -1 4194304 1112 0 0 0 3 1 0 0 18 0 1 0 29372741 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 231891578978 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/22190/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13724

[startup+0.511559 s]
/proc/loadavg: 2.51 3.01 3.03 3/82 22191
/proc/meminfo: memFree=1465872/2055920 swapFree=4192956/4192956
[pid=22190] ppid=22188 vsize=13724 CPUtime=0.22
/proc/22190/stat : 22190 (sugar) S 22188 22190 21647 0 -1 4194304 1190 3478 0 1 3 1 17 1 15 0 1 0 29372741 14053376 809 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 231891578978 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/22190/statm: 3431 809 371 3 0 531 0
Current children cumulated CPU time (s) 0.22
Current children cumulated vsize (KiB) 13724

[startup+1.33266 s]
/proc/loadavg: 2.51 3.01 3.03 3/83 22208
/proc/meminfo: memFree=1439752/2055920 swapFree=4192956/4192956
[pid=22190] ppid=22188 vsize=13724 CPUtime=0.53
/proc/22190/stat : 22190 (sugar) S 22188 22190 21647 0 -1 4194304 1284 7729 0 2 3 1 45 4 15 0 1 0 29372741 14053376 821 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 231891578978 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/22190/statm: 3431 821 373 3 0 531 0
[pid=22208] ppid=22190 vsize=5912 CPUtime=0.71
/proc/22208/stat : 22208 (minisat) R 22190 22190 21647 0 -1 0 1527 0 0 0 71 0 0 0 25 0 1 0 29372802 6053888 1127 18446744073709551615 134512640 134974460 4294956768 18446744073709551615 134528429 0 0 4096 3 0 0 0 17 1 0 0
/proc/22208/statm: 1478 1127 51 112 0 1362 0
Current children cumulated CPU time (s) 1.24
Current children cumulated vsize (KiB) 19636

Child status: 0
Real time (s): 1.51711
CPU time (s): 1.45678
CPU user time (s): 1.38179
CPU system time (s): 0.074988
CPU usage (%): 96.0232
Max. virtual memory (cumulated for all children) (KiB): 19636

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.38179
system time used= 0.074988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10638
page faults= 2
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 401
involuntary context switches= 340

runsolver used 0.003999 s user time and 0.008998 s system time

The end

Launcher Data (download as text)

Begin job on node75 on Mon Jan 29 18:07:48 UTC 2007


IDJOB= 199239
IDBENCH= 3601
IDSOLVER= 86
FILE ID= node75/199239-1170094068

PBS_JOBID= 3689592

Free space on /tmp= 66539 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/knights/knights-20-5.xml
COMMAND LINE= /tmp/evaluation/199239-1170094068/solver /tmp/evaluation/199239-1170094068 /tmp/evaluation/199239-1170094068/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node75/watcher-199239-1170094068 -o ROOT/results/node75/solver-199239-1170094068 -C 1800 -M 900  /tmp/evaluation/199239-1170094068/solver /tmp/evaluation/199239-1170094068 /tmp/evaluation/199239-1170094068/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  5042df59376f87303bcd262d9d1478d3

RANDOM SEED= 728839197

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		: 3000.218
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		: 3000.218
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1478960 kB
Buffers:         50876 kB
Cached:         418800 kB
SwapCached:          0 kB
Active:         197288 kB
Inactive:       306700 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1478960 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:           26300 kB
Writeback:           0 kB
Mapped:          51048 kB
Slab:            58116 kB
Committed_AS:   328296 kB
PageTables:       1900 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= 66503 MiB



End job on node75 on Mon Jan 29 18:07:51 UTC 2007