Trace number 2085442

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
pcs 0.3.2UNSAT 0.201968 0.214244

DiagnosticValue
ASSIGNMENTS0

General information on the benchmark

Namecsp/graphColoring/sgb/
miles/normalized-miles1500-55.xml
MD5SUMbcfa8a7cc471ab5fac6c7c2d2ab0ee51
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 benchmark0.200968
Satisfiable
(Un)Satisfiability was proved
Number of variables128
Number of constraints5198
Maximum constraint arity2
Maximum domain size55
Number of constraints which are defined in extension0
Number of constraints which are defined in intension5198
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c has big domains
0.00/0.01	c big-domain mode
0.00/0.02	c Seed is 342845787
0.00/0.02	c Constructing HOME/instance-2085442-1247725846.xml 
0.17/0.20	c deduced all_different(V1,V5,V6,V7,V9,V12,V13,V18,V19,V22,V23,V24,V26,V27,V29,V37,V38,V40,V42,V44,V45,V51,V52,V54,V56,V57,V59,V61,V63,V65,V66,V67,V68,V69,V70,V72,V73,V74,V75,V77,V78,V79,V82,V83,V87,V88,V89,V90,V91,V92,V93,V95,V98,V99,V100,V101,V106,V107,V108,V109,V110,V112,V113,V114,V115,V121,V122,V125,V126,V127,V0)
0.17/0.20	c deduced all_different(V0,V4,V11,V15,V28,V30,V31,V32,V34,V36,V46,V47,V53,V76,V79,V86,V97,V101,V108,V111,V119,V2)
0.17/0.20	c deduced all_different(V2,V4,V8,V10,V14,V15,V16,V17,V20,V25,V28,V34,V39,V41,V47,V48,V49,V53,V58,V62,V76,V80,V84,V86,V103,V123,V3)
0.17/0.20	c deduced all_different(V1,V5,V6,V7,V9,V12,V13,V18,V19,V22,V23,V24,V26,V27,V29,V35,V37,V38,V40,V42,V44,V45,V51,V52,V57,V59,V60,V61,V63,V65,V67,V68,V69,V70,V72,V73,V74,V75,V77,V78,V81,V82,V83,V85,V87,V88,V90,V91,V92,V93,V95,V98,V99,V100,V106,V107,V109,V110,V112,V113,V114,V115,V117,V121,V122,V125,V126,V127,V21)
0.17/0.20	c deduced all_different(V0,V2,V4,V11,V15,V30,V31,V32,V34,V36,V38,V46,V47,V50,V64,V73,V77,V78,V79,V86,V89,V96,V101,V104,V107,V108,V109,V113,V116,V120,V124,V33)
0.17/0.20	c deduced all_different(V0,V1,V5,V6,V7,V9,V12,V18,V22,V26,V27,V30,V38,V42,V44,V51,V54,V55,V56,V59,V61,V63,V65,V66,V67,V68,V69,V70,V72,V74,V75,V78,V79,V83,V87,V88,V89,V90,V91,V92,V95,V97,V98,V99,V101,V102,V106,V107,V108,V109,V110,V112,V113,V114,V121,V122,V125,V126,V127,V43)
0.17/0.20	c deduced all_different(V0,V1,V5,V7,V12,V18,V22,V26,V27,V30,V38,V42,V43,V51,V54,V55,V56,V59,V61,V63,V65,V66,V67,V69,V70,V72,V74,V75,V78,V79,V83,V87,V88,V89,V90,V91,V95,V97,V98,V99,V101,V102,V106,V107,V108,V109,V113,V114,V118,V121,V122,V125,V126,V127,V71)
0.17/0.20	c deduced all_different(V0,V1,V5,V6,V7,V9,V12,V19,V22,V23,V24,V26,V27,V29,V37,V40,V42,V44,V45,V51,V52,V54,V55,V56,V57,V59,V61,V63,V65,V66,V67,V68,V69,V70,V72,V74,V75,V78,V79,V82,V83,V87,V88,V89,V90,V91,V92,V93,V95,V98,V99,V106,V107,V108,V109,V110,V112,V113,V114,V115,V121,V122,V125,V126,V127,V94)
0.17/0.20	c deduced all_different(V0,V1,V5,V7,V9,V12,V19,V22,V23,V24,V26,V27,V29,V37,V40,V42,V44,V45,V51,V52,V54,V55,V56,V57,V59,V61,V63,V65,V66,V67,V68,V69,V70,V74,V75,V78,V83,V87,V88,V90,V91,V92,V93,V94,V95,V98,V106,V107,V108,V109,V110,V112,V114,V115,V121,V122,V125,V126,V127,V105)
0.17/0.20	c  with 5207 constraints
0.17/0.20	c Solving 0 backtracks
0.17/0.21	s UNSATISFIABLE
0.17/0.21	d ASSIGNMENTS 0

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2085442-1247725846/watcher-2085442-1247725846 -o /tmp/evaluation-result-2085442-1247725846/solver-2085442-1247725846 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 342845787 HOME/instance-2085442-1247725846.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 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


[startup+0 s]
/proc/loadavg: 1.92 1.98 1.99 4/81 16252
/proc/meminfo: memFree=1573776/2055920 swapFree=4192812/4192956
[pid=16252] ppid=16250 vsize=5356 CPUtime=0
/proc/16252/stat : 16252 (pcssolve) R 16250 16252 15544 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 59648784 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 255539604127 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/16252/statm: 1339 241 200 169 0 50 0
[pid=16253] ppid=16252 vsize=5356 CPUtime=0
/proc/16253/stat : 16253 (pcssolve) R 16252 16252 15544 0 -1 4194368 22 0 0 0 0 0 0 0 22 0 1 0 59648785 5484544 243 996147200 4194304 4889804 548682068800 18446744073709551615 255539604775 0 0 4096 0 0 0 0 17 1 0 0
/proc/16253/statm: 1339 243 202 169 0 50 0
[pid=16254] ppid=16252 vsize=5356 CPUtime=0
/proc/16254/stat : 16254 (pcssolve) R 16252 16252 15544 0 -1 4194368 0 0 0 0 0 0 0 0 21 0 1 0 59648785 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 255539604127 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/16254/statm: 1339 241 200 169 0 50 0

[startup+0.024378 s]
/proc/loadavg: 1.92 1.98 1.99 4/81 16252
/proc/meminfo: memFree=1573776/2055920 swapFree=4192812/4192956
[pid=16252] ppid=16250 vsize=4492 CPUtime=0
/proc/16252/stat : 16252 (pcs.big) R 16250 16252 15544 0 -1 4194304 807 656 0 0 0 0 0 0 23 0 1 0 59648784 4599808 438 996147200 134512640 135215973 4294956304 18446744073709551615 3998673 0 0 4096 0 0 0 0 17 1 0 0
/proc/16252/statm: 1123 438 382 171 0 48 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 4492

[startup+0.101384 s]
/proc/loadavg: 1.92 1.98 1.99 4/81 16252
/proc/meminfo: memFree=1573776/2055920 swapFree=4192812/4192956
[pid=16252] ppid=16250 vsize=5008 CPUtime=0.08
/proc/16252/stat : 16252 (pcs.big) R 16250 16252 15544 0 -1 4194304 930 656 0 0 8 0 0 0 23 0 1 0 59648784 5128192 561 996147200 134512640 135215973 4294956304 18446744073709551615 134840221 0 0 4096 0 0 0 0 17 1 0 0
/proc/16252/statm: 1252 561 382 171 0 177 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5008

Solver just ended. Dumping a history of the last processes samples

[startup+0.201395 s]
/proc/loadavg: 1.92 1.98 1.99 4/81 16252
/proc/meminfo: memFree=1573776/2055920 swapFree=4192812/4192956
[pid=16252] ppid=16250 vsize=5524 CPUtime=0.17
/proc/16252/stat : 16252 (pcs.big) R 16250 16252 15544 0 -1 4194304 1083 656 0 0 17 0 0 0 24 0 1 0 59648784 5656576 681 996147200 134512640 135215973 4294956304 18446744073709551615 134691655 0 0 4096 0 0 0 0 17 1 0 0
/proc/16252/statm: 1381 681 382 171 0 306 0
Current children cumulated CPU time (s) 0.17
Current children cumulated vsize (KiB) 5524

Child status: 0
Real time (s): 0.214244
CPU time (s): 0.201968
CPU user time (s): 0.19197
CPU system time (s): 0.009998
CPU usage (%): 94.2701
Max. virtual memory (cumulated for all children) (KiB): 5524

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.19197
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1764
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 18
involuntary context switches= 22

runsolver used 0.000999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node48 at 2009-07-16 08:30:46
IDJOB=2085442
IDBENCH=58412
IDSOLVER=733
FILE ID=node48/2085442-1247725846
PBS_JOBID= 9521509
Free space on /tmp= 66372 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/graphColoring/sgb/miles/normalized-miles1500-55.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2085442-1247725846/watcher-2085442-1247725846 -o /tmp/evaluation-result-2085442-1247725846/solver-2085442-1247725846 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 342845787 HOME/instance-2085442-1247725846.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= bcfa8a7cc471ab5fac6c7c2d2ab0ee51
RANDOM SEED=342845787

node48.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.237
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		: 3000.237
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:       1574256 kB
Buffers:         78768 kB
Cached:         291424 kB
SwapCached:          0 kB
Active:         110092 kB
Inactive:       295340 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1574256 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2328 kB
Writeback:           0 kB
Mapped:          55660 kB
Slab:            61404 kB
Committed_AS:   616900 kB
PageTables:       1840 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= 66368 MiB
End job on node48 at 2009-07-16 08:30:47