Trace number 2087741

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 28.2807 28.551

DiagnosticValue
ASSIGNMENTS22543

General information on the benchmark

Namecsp/os-taillard-7/
normalized-os-taillard-7-95-1.xml
MD5SUM32d7b42d5e01b1a63987e384606943b0
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 benchmark0.035994
Satisfiable
(Un)Satisfiability was proved
Number of variables49
Number of constraints294
Maximum constraint arity2
Maximum domain size419
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 

0.00/0.01	c has big domains
0.00/0.01	c big-domain mode
0.18/0.20	c Seed is 171467993
0.18/0.20	c Constructing HOME/instance-2087741-1247728302.xml  with 2058 constraints
0.18/0.20	c Solving 22543 backtracks 16 restarts
28.22/28.54	s UNSATISFIABLE
28.22/28.54	d ASSIGNMENTS 22543

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-2087741-1247728302/watcher-2087741-1247728302 -o /tmp/evaluation-result-2087741-1247728302/solver-2087741-1247728302 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 171467993 HOME/instance-2087741-1247728302.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: 2.20 2.11 2.03 4/81 20123
/proc/meminfo: memFree=1603224/2055920 swapFree=4192812/4192956
[pid=20123] ppid=20121 vsize=5260 CPUtime=0
/proc/20123/stat : 20123 (pcssolve) R 20121 20123 19682 0 -1 4194304 68 0 0 0 0 0 0 0 20 0 1 0 59893748 5386240 51 996147200 4194304 4889804 548682068800 18446744073709551615 235368620832 0 0 4096 0 0 0 0 17 1 0 0
/proc/20123/statm: 1315 51 37 169 0 14 0

[startup+0.101725 s]
/proc/loadavg: 2.20 2.11 2.03 4/81 20123
/proc/meminfo: memFree=1603224/2055920 swapFree=4192812/4192956
[pid=20123] ppid=20121 vsize=5944 CPUtime=0.08
/proc/20123/stat : 20123 (pcs.big) R 20121 20123 19682 0 -1 4194304 1166 657 0 0 8 0 0 0 18 0 1 0 59893748 6086656 797 996147200 134512640 135215973 4294956304 18446744073709551615 134976881 0 0 4096 0 0 0 0 17 1 0 0
/proc/20123/statm: 1486 797 406 171 0 411 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5944

[startup+0.201731 s]
/proc/loadavg: 2.20 2.11 2.03 4/81 20123
/proc/meminfo: memFree=1603224/2055920 swapFree=4192812/4192956
[pid=20123] ppid=20121 vsize=5944 CPUtime=0.18
/proc/20123/stat : 20123 (pcs.big) R 20121 20123 19682 0 -1 4194304 1167 657 0 0 18 0 0 0 18 0 1 0 59893748 6086656 798 996147200 134512640 135215973 4294956304 18446744073709551615 134581366 0 0 4096 0 0 0 0 17 1 0 0
/proc/20123/statm: 1486 798 406 171 0 411 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 5944

[startup+0.30174 s]
/proc/loadavg: 2.20 2.11 2.03 4/81 20123
/proc/meminfo: memFree=1603224/2055920 swapFree=4192812/4192956
[pid=20123] ppid=20121 vsize=6080 CPUtime=0.28
/proc/20123/stat : 20123 (pcs.big) R 20121 20123 19682 0 -1 4194304 1192 657 0 0 28 0 0 0 19 0 1 0 59893748 6225920 823 996147200 134512640 135215973 4294956304 18446744073709551615 4158960000 0 0 4096 0 0 0 0 17 1 0 0
/proc/20123/statm: 1520 823 406 171 0 445 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6080

[startup+0.701777 s]
/proc/loadavg: 2.20 2.11 2.03 4/81 20123
/proc/meminfo: memFree=1603224/2055920 swapFree=4192812/4192956
[pid=20123] ppid=20121 vsize=6784 CPUtime=0.67
/proc/20123/stat : 20123 (pcs.big) R 20121 20123 19682 0 -1 4194304 1348 657 0 0 67 0 0 0 23 0 1 0 59893748 6946816 979 996147200 134512640 135215973 4294956304 18446744073709551615 134532684 0 0 4096 0 0 0 0 17 1 0 0
/proc/20123/statm: 1696 979 406 171 0 621 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6784

[startup+1.50185 s]
/proc/loadavg: 2.20 2.11 2.03 3/82 20128
/proc/meminfo: memFree=1600200/2055920 swapFree=4192812/4192956
[pid=20123] ppid=20121 vsize=7784 CPUtime=1.46
/proc/20123/stat : 20123 (pcs.big) R 20121 20123 19682 0 -1 4194304 1653 657 0 0 146 0 0 0 25 0 1 0 59893748 7970816 1251 996147200 134512640 135215973 4294956304 18446744073709551615 134648419 0 0 4096 0 0 0 0 17 1 0 0
/proc/20123/statm: 1946 1251 406 171 0 871 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 7784

[startup+3.10299 s]
/proc/loadavg: 2.18 2.11 2.03 3/82 20128
/proc/meminfo: memFree=1598408/2055920 swapFree=4192812/4192956
[pid=20123] ppid=20121 vsize=10200 CPUtime=3.06
/proc/20123/stat : 20123 (pcs.big) R 20121 20123 19682 0 -1 4194304 2307 657 0 0 305 1 0 0 25 0 1 0 59893748 10444800 1807 996147200 134512640 135215973 4294956304 18446744073709551615 134589536 0 0 4096 0 0 0 0 17 1 0 0
/proc/20123/statm: 2550 1807 406 171 0 1475 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 10200

[startup+6.30128 s]
/proc/loadavg: 2.18 2.11 2.03 3/82 20128
/proc/meminfo: memFree=1594376/2055920 swapFree=4192812/4192956
[pid=20123] ppid=20121 vsize=13996 CPUtime=6.22
/proc/20123/stat : 20123 (pcs.big) R 20121 20123 19682 0 -1 4194304 3389 657 0 0 621 1 0 0 25 0 1 0 59893748 14331904 2760 996147200 134512640 135215973 4294956304 18446744073709551615 134532714 0 0 4096 0 0 0 0 17 1 0 0
/proc/20123/statm: 3499 2760 406 171 0 2424 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 13996

[startup+12.7029 s]
/proc/loadavg: 2.15 2.11 2.03 3/82 20128
/proc/meminfo: memFree=1585296/2055920 swapFree=4192812/4192956
[pid=20123] ppid=20121 vsize=23184 CPUtime=12.56
/proc/20123/stat : 20123 (pcs.big) R 20121 20123 19682 0 -1 4194304 5965 657 0 0 1254 2 0 0 25 0 1 0 59893748 23740416 4961 996147200 134512640 135215973 4294956304 18446744073709551615 134612296 0 0 4096 0 0 0 0 17 1 0 0
/proc/20123/statm: 5796 4961 406 171 0 4721 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 23184

[startup+25.502 s]
/proc/loadavg: 2.13 2.10 2.03 3/82 20128
/proc/meminfo: memFree=1567440/2055920 swapFree=4192812/4192956
[pid=20123] ppid=20121 vsize=41468 CPUtime=25.25
/proc/20123/stat : 20123 (pcs.big) R 20121 20123 19682 0 -1 4194304 10947 657 0 0 2520 5 0 0 25 0 1 0 59893748 42463232 9301 996147200 134512640 135215973 4294956304 18446744073709551615 134583707 0 0 4096 0 0 0 0 17 1 0 0
/proc/20123/statm: 10367 9301 406 171 0 9292 0
Current children cumulated CPU time (s) 25.25
Current children cumulated vsize (KiB) 41468

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

[startup+25.601 s]
/proc/loadavg: 2.13 2.10 2.03 3/82 20128
/proc/meminfo: memFree=1567440/2055920 swapFree=4192812/4192956
[pid=20123] ppid=20121 vsize=41468 CPUtime=25.35
/proc/20123/stat : 20123 (pcs.big) R 20121 20123 19682 0 -1 4194304 10962 657 0 0 2530 5 0 0 25 0 1 0 59893748 42463232 9316 996147200 134512640 135215973 4294956304 18446744073709551615 134585632 0 0 4096 0 0 0 0 17 1 0 0
/proc/20123/statm: 10367 9316 406 171 0 9292 0
Current children cumulated CPU time (s) 25.35
Current children cumulated vsize (KiB) 41468

[startup+27.2012 s]
/proc/loadavg: 2.12 2.10 2.03 3/82 20128
/proc/meminfo: memFree=1566352/2055920 swapFree=4192812/4192956
[pid=20123] ppid=20121 vsize=42972 CPUtime=26.93
/proc/20123/stat : 20123 (pcs.big) R 20121 20123 19682 0 -1 4194304 11385 657 0 0 2688 5 0 0 25 0 1 0 59893748 44003328 9739 996147200 134512640 135215973 4294956304 18446744073709551615 134585768 0 0 4096 0 0 0 0 17 1 0 0
/proc/20123/statm: 10743 9739 406 171 0 9668 0
Current children cumulated CPU time (s) 26.93
Current children cumulated vsize (KiB) 42972

[startup+28.0012 s]
/proc/loadavg: 2.12 2.10 2.03 3/82 20128
/proc/meminfo: memFree=1565136/2055920 swapFree=4192812/4192956
[pid=20123] ppid=20121 vsize=44364 CPUtime=27.72
/proc/20123/stat : 20123 (pcs.big) R 20121 20123 19682 0 -1 4194304 11739 657 0 0 2767 5 0 0 25 0 1 0 59893748 45428736 10093 996147200 134512640 135215973 4294956304 18446744073709551615 4158960255 0 0 4096 0 0 0 0 17 1 0 0
/proc/20123/statm: 11091 10093 406 171 0 10016 0
Current children cumulated CPU time (s) 27.72
Current children cumulated vsize (KiB) 44364

[startup+28.4013 s]
/proc/loadavg: 2.12 2.10 2.03 3/82 20128
/proc/meminfo: memFree=1565136/2055920 swapFree=4192812/4192956
[pid=20123] ppid=20121 vsize=44860 CPUtime=28.12
/proc/20123/stat : 20123 (pcs.big) R 20121 20123 19682 0 -1 4194304 11892 657 0 0 2807 5 0 0 25 0 1 0 59893748 45936640 10246 996147200 134512640 135215973 4294956304 18446744073709551615 134589627 0 0 4096 0 0 0 0 17 1 0 0
/proc/20123/statm: 11215 10246 406 171 0 10140 0
Current children cumulated CPU time (s) 28.12
Current children cumulated vsize (KiB) 44860

[startup+28.5013 s]
/proc/loadavg: 2.12 2.10 2.03 3/82 20128
/proc/meminfo: memFree=1565136/2055920 swapFree=4192812/4192956
[pid=20123] ppid=20121 vsize=43956 CPUtime=28.22
/proc/20123/stat : 20123 (pcs.big) R 20121 20123 19682 0 -1 4194304 11920 657 0 0 2817 5 0 0 25 0 1 0 59893748 45010944 10081 996147200 134512640 135215973 4294956304 18446744073709551615 3049301 0 0 4096 0 0 0 0 17 1 0 0
/proc/20123/statm: 10989 10081 406 171 0 9914 0
Current children cumulated CPU time (s) 28.22
Current children cumulated vsize (KiB) 43956

Child status: 0
Real time (s): 28.551
CPU time (s): 28.2807
CPU user time (s): 28.2147
CPU system time (s): 0.065989
CPU usage (%): 99.0533
Max. virtual memory (cumulated for all children) (KiB): 44860

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 28.2147
system time used= 0.065989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 12580
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= 19
involuntary context switches= 1209

runsolver used 0.041993 second user time and 0.097985 second system time

The end

Launcher Data 

Begin job on node51 at 2009-07-16 09:11:42
IDJOB=2087741
IDBENCH=58792
IDSOLVER=733
FILE ID=node51/2087741-1247728302
PBS_JOBID= 9521584
Free space on /tmp= 66320 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/os-taillard-7/normalized-os-taillard-7-95-1.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2087741-1247728302/watcher-2087741-1247728302 -o /tmp/evaluation-result-2087741-1247728302/solver-2087741-1247728302 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 171467993 HOME/instance-2087741-1247728302.xml

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

MD5SUM BENCH= 32d7b42d5e01b1a63987e384606943b0
RANDOM SEED=171467993

node51.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		: 3000.225
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		: 3000.225
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:       1603704 kB
Buffers:         65760 kB
Cached:         283964 kB
SwapCached:          0 kB
Active:          97784 kB
Inactive:       287028 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1603704 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1764 kB
Writeback:           0 kB
Mapped:          55540 kB
Slab:            52576 kB
Committed_AS:   532364 kB
PageTables:       1888 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= 66316 MiB
End job on node51 at 2009-07-16 09:12:11