Trace number 198248

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 1.02 1.22539

General information on the benchmark

NamejobShop/jobShop-enddr1/
enddr1-10-by-5-7.xml
MD5SUM9b2a6147dca650c7a3e325c9b76e27d1
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 benchmark0.035993
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables50
Number of constraints265
Maximum constraint arity2
Maximum domain size127
Number of constraints which are defined in extension0
Number of constraints which are defined in intension265
Global constraints used (with number of constraints)

Solver Data (download as text)

0.05	c # Sugar v0-40 (/tmp/evaluation/198248-1170093770/sugar-v0-40.jar)
0.05	
0.05	c # MAIN  BEGIN : /tmp/evaluation/198248-1170093770/unknown.xml [Mon Jan 29 19:02:50 2007]
0.05	c # CONVERT_XML  BEGIN : /tmp/evaluation/198248-1170093770/unknown.xml /tmp/evaluation/198248-1170093770/sugar24274.csp [Mon Jan 29 19:02:50 2007]
0.05	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/198248-1170093770/sugar-v0-40.jar -convert /tmp/evaluation/198248-1170093770/unknown.xml /tmp/evaluation/198248-1170093770/sugar24274.csp
0.18	c BEGIN convert /tmp/evaluation/198248-1170093770/unknown.xml
0.45	c END convert (0.276626 seconds)
0.50	c # CONVERT_XML  END : /tmp/evaluation/198248-1170093770/sugar24274.csp 11633 bytes (1 seconds) [Mon Jan 29 19:02:51 2007]
0.50	c # CONVERT_XML  CPU : 0 = 0 + 0 + 0 + 0
0.50	
0.50	c # GENERATE_SAT  BEGIN : /tmp/evaluation/198248-1170093770/sugar24274.bcnf [Mon Jan 29 19:02:51 2007]
0.50	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/198248-1170093770/sugar-v0-40.jar -bcnf -map /tmp/evaluation/198248-1170093770/sugar24274.map /tmp/evaluation/198248-1170093770/sugar24274.csp /tmp/evaluation/198248-1170093770/sugar24274.bcnf
0.61	c BEGIN parse /tmp/evaluation/198248-1170093770/sugar24274.csp
0.80	c END parse (0.194047 seconds)
0.80	c BEGIN simplify
0.81	c END simplify (0.009283 seconds)
0.81	c BEGIN encode /tmp/evaluation/198248-1170093770/sugar24274.bcnf
0.91	c END encode (0.098959 seconds)
0.94	c # GENERATE_SAT  END : 6220 variables 55884 clauses 849340 bytes (0 seconds) [Mon Jan 29 19:02:51 2007]
0.94	c # GENERATE_SAT  CPU : 0.41 = 0.01 + 0 + 0.36 + 0.04
0.94	
0.94	c # SOLVE_SAT  BEGIN : /tmp/evaluation/198248-1170093770/sugar24274.bcnf [Mon Jan 29 19:02:51 2007]
0.94	c # CMD : /tmp/evaluation/198248-1170093770/minisat /tmp/evaluation/198248-1170093770/sugar24274.bcnf /tmp/evaluation/198248-1170093770/sugar24274.out
0.97	c ==================================[MINISAT]===================================
0.97	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
0.97	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
0.97	c ==============================================================================
0.97	c |         0 |   55884   156445 |   18628       0        0     nan |  0.000 % |
0.98	c ==============================================================================
0.98	c restarts              : 1
0.98	c conflicts             : 0              (0 /sec)
0.98	c decisions             : 71             (2219 /sec)
0.98	c propagations          : 6220           (194405 /sec)
0.98	c conflict literals     : 0              ( nan % deleted)
0.98	c Memory used           : 4.10 MB
0.98	c CPU time              : 0.031995 s
0.98	c 
0.98	c SATISFIABLE
0.98	c # SOLVE_SAT  END : SATISFIABLE (0 seconds) [Mon Jan 29 19:02:51 2007]
0.98	c # SOLVE_SAT  CPU : 0.05 = 0 + 0 + 0.04 + 0.01
0.98	
0.98	c # RESULT : SATISFIABLE
0.98	
0.98	c # OUTPUT_SOL  BEGIN : SAT  [Mon Jan 29 19:02:51 2007]
1.10	c BEGIN read SAT output /tmp/evaluation/198248-1170093770/sugar24274.out
1.14	c END read SAT output (0.040739 seconds)
1.14	c BEGIN write solution /tmp/evaluation/198248-1170093770/sugar24274.sol
1.20	c END write solution (0.053056 seconds)
1.22	s SATISFIABLE
1.22	v 11 19 50 70 106 0 9 17 59 62 33 39 62 73 80 13 23 29 44 54 52 62 74 86 94 67 73 88 113 116 82 93 98 117 123 97 105 111 133 150 108 117 122 132 143 122 126 132 145 154
1.22	c # OUTPUT_SOL  END :  (0 seconds) [Mon Jan 29 19:02:51 2007]
1.22	c # OUTPUT_SOL  CPU : 0.21 = 0 + 0.01 + 0.18 + 0.02
1.22	
1.22	c # MAIN  END :  (1 seconds) [Mon Jan 29 19:02:51 2007]
1.22	c # MAIN  CPU : 0.67 = 0.01 + 0.01 + 0.58 + 0.07
1.22

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/node3/watcher-198248-1170093770 -o ROOT/results/node3/solver-198248-1170093770 -C 1800 -M 900 /tmp/evaluation/198248-1170093770/solver /tmp/evaluation/198248-1170093770 /tmp/evaluation/198248-1170093770/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: 2.80 3.11 2.82 5/95 24275
/proc/meminfo: memFree=16120/2055920 swapFree=4192812/4192956
[pid=24274] ppid=24272 vsize=18540 CPUtime=0
/proc/24274/stat : 24274 (runsolver) R 24272 24274 23899 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 29331852 18984960 279 18446744073709551615 4194304 4267372 548682069040 18446744073709551615 233632754983 0 0 4096 24578 0 0 0 17 1 0 0
/proc/24274/statm: 4635 279 244 17 0 2626 0

[startup+0.108681 s]
/proc/loadavg: 2.80 3.11 2.82 5/95 24275
/proc/meminfo: memFree=16120/2055920 swapFree=4192812/4192956
[pid=24274] ppid=24272 vsize=13724 CPUtime=0.03
/proc/24274/stat : 24274 (sugar) S 24272 24274 23899 0 -1 4194304 1112 0 0 0 3 0 0 0 20 0 1 0 29331852 14053376 805 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 233641652322 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/24274/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13724

[startup+0.523714 s]
/proc/loadavg: 2.80 3.11 2.82 5/95 24275
/proc/meminfo: memFree=16120/2055920 swapFree=4192812/4192956
[pid=24274] ppid=24272 vsize=13724 CPUtime=0.03
/proc/24274/stat : 24274 (sugar) S 24272 24274 23899 0 -1 4194304 1178 0 0 0 3 0 0 0 16 0 1 0 29331852 14053376 808 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 233641652322 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/24274/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 24274 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=633903 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=85986
CPU time returned by wait4() is 0.719889
while last known CPU time is 1.02

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

Real time (s): 1.22539
CPU time (s): 1.02
CPU user time (s): 0.92
CPU system time (s): 0.1
CPU usage (%): 83.2386
Max. virtual memory (cumulated for all children) (KiB): 820992

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.633903
system time used= 0.085986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10640
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= 730
involuntary context switches= 671

runsolver used 0.006998 s user time and 0.007998 s system time

The end

Launcher Data (download as text)

Begin job on node3 on Mon Jan 29 18:02:50 UTC 2007


IDJOB= 198248
IDBENCH= 3543
IDSOLVER= 86
FILE ID= node3/198248-1170093770

PBS_JOBID= 3689433

Free space on /tmp= 39802 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/jobShop/jobShop-enddr1/enddr1-10-by-5-7.xml
COMMAND LINE= /tmp/evaluation/198248-1170093770/solver /tmp/evaluation/198248-1170093770 /tmp/evaluation/198248-1170093770/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-198248-1170093770 -o ROOT/results/node3/solver-198248-1170093770 -C 1800 -M 900  /tmp/evaluation/198248-1170093770/solver /tmp/evaluation/198248-1170093770 /tmp/evaluation/198248-1170093770/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  9b2a6147dca650c7a3e325c9b76e27d1

RANDOM SEED= 780676539

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		: 3000.241
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		: 3000.241
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:         16600 kB
Buffers:          3596 kB
Cached:        1826624 kB
SwapCached:          0 kB
Active:         153592 kB
Inactive:      1797120 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:         16600 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:          827000 kB
Writeback:           0 kB
Mapped:         146004 kB
Slab:            73380 kB
Committed_AS:   500096 kB
PageTables:       2208 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= 39778 MiB



End job on node3 on Mon Jan 29 18:02:51 UTC 2007