Trace number 234006

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 1.46 1.58893

General information on the benchmark

Nametaillard/
os-taillard-7/os-taillard-7-95-6.xml
MD5SUM019f8abe20a7cd1b8d6c7abc45fb5a20
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 benchmark0.106982
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables49
Number of constraints294
Maximum constraint arity2
Maximum domain size397
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/234006-1170106868/sugar-v0-40.jar)
0.05	
0.05	c # MAIN  BEGIN : /tmp/evaluation/234006-1170106868/unknown.xml [Mon Jan 29 22:41:08 2007]
0.05	c # CONVERT_XML  BEGIN : /tmp/evaluation/234006-1170106868/unknown.xml /tmp/evaluation/234006-1170106868/sugar18679.csp [Mon Jan 29 22:41:08 2007]
0.05	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/234006-1170106868/sugar-v0-40.jar -convert /tmp/evaluation/234006-1170106868/unknown.xml /tmp/evaluation/234006-1170106868/sugar18679.csp
0.17	c BEGIN convert /tmp/evaluation/234006-1170106868/unknown.xml
0.46	c END convert (0.290958 seconds)
0.49	c # CONVERT_XML  END : /tmp/evaluation/234006-1170106868/sugar18679.csp 14120 bytes (1 seconds) [Mon Jan 29 22:41:09 2007]
0.49	c # CONVERT_XML  CPU : 0.4 = 0 + 0 + 0.37 + 0.03
0.49	
0.49	c # GENERATE_SAT  BEGIN : /tmp/evaluation/234006-1170106868/sugar18679.bcnf [Mon Jan 29 22:41:09 2007]
0.49	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/234006-1170106868/sugar-v0-40.jar -bcnf -map /tmp/evaluation/234006-1170106868/sugar18679.map /tmp/evaluation/234006-1170106868/sugar18679.csp /tmp/evaluation/234006-1170106868/sugar18679.bcnf
0.62	c BEGIN parse /tmp/evaluation/234006-1170106868/sugar18679.csp
0.84	c END parse (0.225466 seconds)
0.84	c BEGIN simplify
0.85	c END simplify (0.012121 seconds)
0.85	c BEGIN encode /tmp/evaluation/234006-1170106868/sugar18679.bcnf
1.08	c END encode (0.225914 seconds)
1.10	c # GENERATE_SAT  END : 17564 variables 190033 clauses 2966964 bytes (0 seconds) [Mon Jan 29 22:41:09 2007]
1.10	c # GENERATE_SAT  CPU : 0.01 = 0.01 + 0 + 0 + 0
1.10	
1.10	c # SOLVE_SAT  BEGIN : /tmp/evaluation/234006-1170106868/sugar18679.bcnf [Mon Jan 29 22:41:09 2007]
1.10	c # CMD : /tmp/evaluation/234006-1170106868/minisat /tmp/evaluation/234006-1170106868/sugar18679.bcnf /tmp/evaluation/234006-1170106868/sugar18679.out
1.23	c ==================================[MINISAT]===================================
1.23	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
1.23	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
1.23	c ==============================================================================
1.23	c |         0 |  190033   551702 |   63344       0        0     nan |  0.000 % |
1.40	c |       100 |  190033   551702 |   69678     100     1038    10.4 |  0.000 % |
1.53	c |       250 |  190033   551702 |   76646     250     2237     8.9 |  0.000 % |
1.58	c ==============================================================================
1.58	c restarts              : 3
1.58	c conflicts             : 442            (993 /sec)
1.58	c decisions             : 652            (1465 /sec)
1.58	c propagations          : 572283         (1286226 /sec)
1.58	c conflict literals     : 3009           (30.22 % deleted)
1.58	c Memory used           : 10.96 MB
1.58	c CPU time              : 0.444932 s
1.58	c 
1.58	c UNSATISFIABLE
1.58	c # SOLVE_SAT  END : UNSATISFIABLE (1 seconds) [Mon Jan 29 22:41:10 2007]
1.58	c # SOLVE_SAT  CPU : 0.47 = 0 + 0 + 0.44 + 0.03
1.58	
1.58	c # RESULT : UNSATISFIABLE
1.58	
1.58	c # OUTPUT_SOL  BEGIN : UNSAT  [Mon Jan 29 22:41:10 2007]
1.58	s UNSATISFIABLE
1.58	c # OUTPUT_SOL  END :  (0 seconds) [Mon Jan 29 22:41:10 2007]
1.58	c # OUTPUT_SOL  CPU : 0 = 0 + 0 + 0 + 0
1.58	
1.58	c # MAIN  END :  (2 seconds) [Mon Jan 29 22:41:10 2007]
1.58	c # MAIN  CPU : 0.88 = 0.01 + 0 + 0.81 + 0.06
1.58

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/node22/watcher-234006-1170106868 -o ROOT/results/node22/solver-234006-1170106868 -C 1800 -M 900 /tmp/evaluation/234006-1170106868/solver /tmp/evaluation/234006-1170106868 /tmp/evaluation/234006-1170106868/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: 1.75 2.26 2.63 3/88 18680
/proc/meminfo: memFree=1162360/2055920 swapFree=4192812/4192956
[pid=18679] ppid=18677 vsize=5356 CPUtime=0
/proc/18679/stat : 18679 (solver) R 18677 18679 18542 0 -1 4194304 184 0 0 0 0 0 0 0 20 0 1 0 30640758 5484544 153 18446744073709551615 4194304 4889804 548682069296 18446744073709551615 272467984466 0 0 4096 0 0 0 0 17 1 0 0
/proc/18679/statm: 1339 153 126 169 0 50 0

[startup+0.103802 s]
/proc/loadavg: 1.75 2.26 2.63 3/88 18680
/proc/meminfo: memFree=1162360/2055920 swapFree=4192812/4192956
[pid=18679] ppid=18677 vsize=13724 CPUtime=0.04
/proc/18679/stat : 18679 (sugar) S 18677 18679 18542 0 -1 4194304 1112 0 0 0 3 1 0 0 20 0 1 0 30640758 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 272476713058 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/18679/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13724

[startup+0.512828 s]
/proc/loadavg: 1.75 2.26 2.63 3/88 18680
/proc/meminfo: memFree=1162360/2055920 swapFree=4192812/4192956
[pid=18679] ppid=18677 vsize=13724 CPUtime=0.44
/proc/18679/stat : 18679 (sugar) S 18677 18679 18542 0 -1 4194304 1181 4034 0 1 3 1 37 3 16 0 1 0 30640758 14053376 809 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 272476713058 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/18679/statm: 3431 809 371 3 0 531 0
Current children cumulated CPU time (s) 0.44
Current children cumulated vsize (KiB) 13724

[startup+1.33991 s]
/proc/loadavg: 1.75 2.26 2.63 4/91 18697
/proc/meminfo: memFree=1152672/2055920 swapFree=4192812/4192956
[pid=18679] ppid=18677 vsize=14124 CPUtime=0.45
/proc/18679/stat : 18679 (sugar) S 18677 18679 18542 0 -1 4194304 1393 4034 0 1 4 1 37 3 15 0 1 0 30640758 14462976 906 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 272476713058 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/18679/statm: 3531 906 373 3 0 631 0
[pid=18689] ppid=18679 vsize=0 CPUtime=0.58
/proc/18689/stat : 18689 (java) Z 18679 18679 18542 0 -1 1036 5225 0 1 0 53 5 0 0 18 0 2 0 30640808 0 0 18446744073709551615 0 0 0 0 0 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/18689/statm: 0 0 0 0 0 0 0
[pid=18697] ppid=18679 vsize=10960 CPUtime=0.22
/proc/18697/stat : 18697 (minisat) R 18679 18679 18542 0 -1 0 3096 0 0 0 20 2 0 0 18 0 1 0 30640869 11223040 2356 18446744073709551615 134512640 134974460 4294956768 18446744073709551615 134528467 0 0 4096 3 0 0 0 17 1 0 0
/proc/18697/statm: 2740 2356 49 112 0 2624 0
Current children cumulated CPU time (s) 1.25
Current children cumulated vsize (KiB) 25084

Child status: 0

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 18679 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=864868 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=78987
CPU time returned by wait4() is 0.943855
while last known CPU time is 1.46

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

Real time (s): 1.58893
CPU time (s): 1.46
CPU user time (s): 1.35
CPU system time (s): 0.11
CPU usage (%): 91.8857
Max. virtual memory (cumulated for all children) (KiB): 25348

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.864868
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= 8664
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= 529
involuntary context switches= 503

runsolver used 0.004999 s user time and 0.008998 s system time

The end

Launcher Data (download as text)

Begin job on node22 on Mon Jan 29 21:41:08 UTC 2007


IDJOB= 234006
IDBENCH= 6651
IDSOLVER= 86
FILE ID= node22/234006-1170106868

PBS_JOBID= 3689899

Free space on /tmp= 66382 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-7/os-taillard-7-95-6.xml
COMMAND LINE= /tmp/evaluation/234006-1170106868/solver /tmp/evaluation/234006-1170106868 /tmp/evaluation/234006-1170106868/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node22/watcher-234006-1170106868 -o ROOT/results/node22/solver-234006-1170106868 -C 1800 -M 900  /tmp/evaluation/234006-1170106868/solver /tmp/evaluation/234006-1170106868 /tmp/evaluation/234006-1170106868/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  019f8abe20a7cd1b8d6c7abc45fb5a20

RANDOM SEED= 136241769

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		: 3000.235
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		: 3000.235
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:       1162840 kB
Buffers:         17696 kB
Cached:         257016 kB
SwapCached:        144 kB
Active:         788616 kB
Inactive:        51500 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1162840 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1152 kB
Writeback:           0 kB
Mapped:         585008 kB
Slab:            36948 kB
Committed_AS:   886904 kB
PageTables:       3136 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= 66382 MiB



End job on node22 on Mon Jan 29 21:41:10 UTC 2007