Trace number 2087742

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-restart 0.3.2UNSAT 2.01669 2.03083

DiagnosticValue
ASSIGNMENTS2050

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 1237855013
0.18/0.20	c Constructing HOME/instance-2087742-1247728308.xml  with 2058 constraints
0.18/0.20	c Solving 2050 backtracks 10 restarts
1.98/2.02	s UNSATISFIABLE
1.98/2.02	d ASSIGNMENTS 2050

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-2087742-1247728308/watcher-2087742-1247728308 -o /tmp/evaluation-result-2087742-1247728308/solver-2087742-1247728308 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1237855013 HOME/instance-2087742-1247728308.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: 2.04 2.01 2.00 4/82 18560
/proc/meminfo: memFree=1534272/2055920 swapFree=4192812/4192956
[pid=18560] ppid=18558 vsize=5356 CPUtime=0
/proc/18560/stat : 18560 (pcssolve) S 18558 18560 18072 0 -1 4194304 305 0 0 0 0 0 0 0 18 0 1 0 59895417 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 226686985028 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/18560/statm: 1339 242 201 169 0 50 0
[pid=18561] ppid=18560 vsize=5356 CPUtime=0
/proc/18561/stat : 18561 (pcssolve) R 18560 18560 18072 0 -1 4194368 22 0 0 0 0 0 0 0 19 0 1 0 59895417 5484544 243 996147200 4194304 4889804 548682068800 18446744073709551615 226686987559 0 0 4096 0 0 0 0 17 1 0 0
/proc/18561/statm: 1339 243 202 169 0 50 0
[pid=18562] ppid=18560 vsize=5356 CPUtime=0
/proc/18562/stat : 18562 (pcssolve) R 18560 18560 18072 0 -1 4194368 22 0 0 0 0 0 0 0 20 0 1 0 59895418 5484544 244 996147200 4194304 4889804 548682068800 18446744073709551615 226686987559 0 0 4096 0 0 0 0 17 1 0 0
/proc/18562/statm: 1339 244 203 169 0 50 0

[startup+0.071778 s]
/proc/loadavg: 2.04 2.01 2.00 4/82 18560
/proc/meminfo: memFree=1534272/2055920 swapFree=4192812/4192956
[pid=18560] ppid=18558 vsize=5944 CPUtime=0.05
/proc/18560/stat : 18560 (pcs.big) R 18558 18560 18072 0 -1 4194304 1166 657 0 0 5 0 0 0 17 0 1 0 59895417 6086656 797 996147200 134512640 135215973 4294956304 18446744073709551615 134612264 0 0 4096 0 0 0 0 17 0 0 0
/proc/18560/statm: 1486 797 406 171 0 411 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 5944

[startup+0.101783 s]
/proc/loadavg: 2.04 2.01 2.00 4/82 18560
/proc/meminfo: memFree=1534272/2055920 swapFree=4192812/4192956
[pid=18560] ppid=18558 vsize=5944 CPUtime=0.08
/proc/18560/stat : 18560 (pcs.big) R 18558 18560 18072 0 -1 4194304 1166 657 0 0 8 0 0 0 17 0 1 0 59895417 6086656 797 996147200 134512640 135215973 4294956304 18446744073709551615 134532674 0 0 4096 0 0 0 0 17 0 0 0
/proc/18560/statm: 1486 797 406 171 0 411 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5944

[startup+0.301823 s]
/proc/loadavg: 2.04 2.01 2.00 4/82 18560
/proc/meminfo: memFree=1534272/2055920 swapFree=4192812/4192956
[pid=18560] ppid=18558 vsize=6224 CPUtime=0.28
/proc/18560/stat : 18560 (pcs.big) R 18558 18560 18072 0 -1 4194304 1205 657 0 0 28 0 0 0 19 0 1 0 59895417 6373376 836 996147200 134512640 135215973 4294956304 18446744073709551615 134592492 0 0 4096 0 0 0 0 17 0 0 0
/proc/18560/statm: 1556 836 406 171 0 481 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 6224

[startup+0.701905 s]
/proc/loadavg: 2.04 2.01 2.00 4/82 18560
/proc/meminfo: memFree=1534272/2055920 swapFree=4192812/4192956
[pid=18560] ppid=18558 vsize=6732 CPUtime=0.67
/proc/18560/stat : 18560 (pcs.big) R 18558 18560 18072 0 -1 4194304 1360 657 0 0 67 0 0 0 23 0 1 0 59895417 6893568 991 996147200 134512640 135215973 4294956304 18446744073709551615 134957929 0 0 4096 0 0 0 0 17 0 0 0
/proc/18560/statm: 1683 991 406 171 0 608 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6732

[startup+1.50107 s]
/proc/loadavg: 2.04 2.01 2.00 3/83 18565
/proc/meminfo: memFree=1531384/2055920 swapFree=4192812/4192956
[pid=18560] ppid=18558 vsize=7988 CPUtime=1.47
/proc/18560/stat : 18560 (pcs.big) R 18558 18560 18072 0 -1 4194304 1651 657 0 0 147 0 0 0 25 0 1 0 59895417 8179712 1282 996147200 134512640 135215973 4294956304 18446744073709551615 134674204 0 0 4096 0 0 0 0 17 0 0 0
/proc/18560/statm: 1997 1282 406 171 0 922 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 7988

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

[startup+1.90115 s]
/proc/loadavg: 2.04 2.01 2.00 3/83 18565
/proc/meminfo: memFree=1531384/2055920 swapFree=4192812/4192956
[pid=18560] ppid=18558 vsize=8484 CPUtime=1.87
/proc/18560/stat : 18560 (pcs.big) R 18558 18560 18072 0 -1 4194304 1806 657 0 0 187 0 0 0 25 0 1 0 59895417 8687616 1437 996147200 134512640 135215973 4294956304 18446744073709551615 134585720 0 0 4096 0 0 0 0 17 0 0 0
/proc/18560/statm: 2121 1437 406 171 0 1046 0
Current children cumulated CPU time (s) 1.87
Current children cumulated vsize (KiB) 8484

[startup+2.00117 s]
/proc/loadavg: 2.04 2.01 2.00 3/83 18565
/proc/meminfo: memFree=1531384/2055920 swapFree=4192812/4192956
[pid=18560] ppid=18558 vsize=8864 CPUtime=1.98
/proc/18560/stat : 18560 (pcs.big) R 18558 18560 18072 0 -1 4194304 1904 657 0 0 197 1 0 0 25 0 1 0 59895417 9076736 1470 996147200 134512640 135215973 4294956304 18446744073709551615 134598062 0 0 4096 0 0 0 0 17 0 0 0
/proc/18560/statm: 2216 1470 406 171 0 1141 0
Current children cumulated CPU time (s) 1.98
Current children cumulated vsize (KiB) 8864

Child status: 0
Real time (s): 2.03083
CPU time (s): 2.01669
CPU user time (s): 1.9997
CPU system time (s): 0.016997
CPU usage (%): 99.3041
Max. virtual memory (cumulated for all children) (KiB): 8864

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.9997
system time used= 0.016997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2640
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= 20
involuntary context switches= 35

runsolver used 0.001999 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node80 at 2009-07-16 09:11:48
IDJOB=2087742
IDBENCH=58792
IDSOLVER=734
FILE ID=node80/2087742-1247728308
PBS_JOBID= 9521523
Free space on /tmp= 66320 MiB

SOLVER NAME= pcs-restart 0.2.restart
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-2087742-1247728308/watcher-2087742-1247728308 -o /tmp/evaluation-result-2087742-1247728308/solver-2087742-1247728308 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1237855013 HOME/instance-2087742-1247728308.xml

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

MD5SUM BENCH= 32d7b42d5e01b1a63987e384606943b0
RANDOM SEED=1237855013

node80.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		: 3000.285
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		: 3000.285
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:       1534752 kB
Buffers:         78748 kB
Cached:         318304 kB
SwapCached:          0 kB
Active:         115192 kB
Inactive:       320576 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1534752 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1972 kB
Writeback:           0 kB
Mapped:          59188 kB
Slab:            70588 kB
Committed_AS:   576452 kB
PageTables:       1892 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= 66320 MiB
End job on node80 at 2009-07-16 09:11:50