Trace number 1106175

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
Minion/Tailor 2008-07-04UNSAT 0.532918 0.588408

General information on the benchmark

Namecsp/os-taillard-4/
normalized-os-taillard-4-95-4.xml
MD5SUM0dc881dcf5f24d5a75bda8e44ec68a89
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 benchmark0.009997
Satisfiable
(Un)Satisfiability was proved
Number of variables16
Number of constraints48
Maximum constraint arity2
Maximum domain size255
Number of constraints which are defined in extension0
Number of constraints which are defined in intension48
Global constraints used (with number of constraints)

Solver Data (download as text)

0.36/0.42	c Finished tailoring XCSP instance to Minion. Starting solving
0.36/0.58	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1106175-1215204934/watcher-1106175-1215204934 -o /tmp/evaluation-result-1106175-1215204934/solver-1106175-1215204934 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/solve.sh HOME/instance-1106175-1215204934.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): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.11 2.04 2.01 4/73 26135
/proc/meminfo: memFree=1723680/2055920 swapFree=4180312/4192956
[pid=26135] ppid=26133 vsize=5356 CPUtime=0
/proc/26135/stat : 26135 (solve.sh) R 26133 26135 25825 0 -1 4194304 266 0 0 0 0 0 0 0 22 0 1 0 426110811 5484544 234 996147200 4194304 4889804 548682068832 18446744073709551615 224627583647 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/26135/statm: 1339 234 194 169 0 50 0
[pid=26136] ppid=26135 vsize=5356 CPUtime=0
/proc/26136/stat : 26136 (solve.sh) R 26135 26135 25825 0 -1 4194368 0 0 0 0 0 0 0 0 22 0 1 0 426110812 5484544 234 996147200 4194304 4889804 548682068832 18446744073709551615 224627583647 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/26136/statm: 1339 234 194 169 0 50 0

[startup+0.108295 s]
/proc/loadavg: 2.11 2.04 2.01 4/73 26135
/proc/meminfo: memFree=1723680/2055920 swapFree=4180312/4192956
[pid=26135] ppid=26133 vsize=5356 CPUtime=0
/proc/26135/stat : 26135 (solve.sh) S 26133 26135 25825 0 -1 4194304 285 0 0 0 0 0 0 0 22 0 1 0 426110811 5484544 235 996147200 4194304 4889804 548682068832 18446744073709551615 224627581764 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/26135/statm: 1339 235 195 169 0 50 0
[pid=26136] ppid=26135 vsize=864136 CPUtime=0.08
/proc/26136/stat : 26136 (java) S 26135 26135 25825 0 -1 0 3518 0 1 0 7 1 0 0 23 0 9 0 426110812 884875264 2970 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/26136/statm: 216034 2970 1725 9 0 210596 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 869492

[startup+0.201306 s]
/proc/loadavg: 2.11 2.04 2.01 4/73 26135
/proc/meminfo: memFree=1723680/2055920 swapFree=4180312/4192956
[pid=26135] ppid=26133 vsize=5356 CPUtime=0
/proc/26135/stat : 26135 (solve.sh) S 26133 26135 25825 0 -1 4194304 285 0 0 0 0 0 0 0 22 0 1 0 426110811 5484544 235 996147200 4194304 4889804 548682068832 18446744073709551615 224627581764 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/26135/statm: 1339 235 195 169 0 50 0
[pid=26136] ppid=26135 vsize=864444 CPUtime=0.18
/proc/26136/stat : 26136 (java) S 26135 26135 25825 0 -1 0 4049 0 1 0 16 2 0 0 23 0 9 0 426110812 885190656 3477 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/26136/statm: 216111 3477 1826 9 0 210673 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 869800

[startup+0.30132 s]
/proc/loadavg: 2.11 2.04 2.01 4/73 26135
/proc/meminfo: memFree=1723680/2055920 swapFree=4180312/4192956
[pid=26135] ppid=26133 vsize=5356 CPUtime=0
/proc/26135/stat : 26135 (solve.sh) S 26133 26135 25825 0 -1 4194304 285 0 0 0 0 0 0 0 22 0 1 0 426110811 5484544 235 996147200 4194304 4889804 548682068832 18446744073709551615 224627581764 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/26135/statm: 1339 235 195 169 0 50 0
[pid=26136] ppid=26135 vsize=864804 CPUtime=0.28
/proc/26136/stat : 26136 (java) S 26135 26135 25825 0 -1 0 4777 0 1 0 25 3 0 0 23 0 9 0 426110812 885559296 4204 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/26136/statm: 216201 4204 1847 9 0 210763 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 870160

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

[startup+0.401336 s]
/proc/loadavg: 2.11 2.04 2.01 4/73 26135
/proc/meminfo: memFree=1723680/2055920 swapFree=4180312/4192956
[pid=26135] ppid=26133 vsize=5356 CPUtime=0
/proc/26135/stat : 26135 (solve.sh) S 26133 26135 25825 0 -1 4194304 285 0 0 0 0 0 0 0 22 0 1 0 426110811 5484544 235 996147200 4194304 4889804 548682068832 18446744073709551615 224627581764 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/26135/statm: 1339 235 195 169 0 50 0
[pid=26136] ppid=26135 vsize=865036 CPUtime=0.36
/proc/26136/stat : 26136 (java) S 26135 26135 25825 0 -1 0 5433 0 1 0 33 3 0 0 23 0 9 0 426110812 885796864 4771 996147200 134512640 134550740 4294956032 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/26136/statm: 216259 4771 1862 9 0 210821 0
Current children cumulated CPU time (s) 0.36
Current children cumulated vsize (KiB) 870392

[startup+0.501348 s]
/proc/loadavg: 2.11 2.04 2.01 4/73 26135
/proc/meminfo: memFree=1723680/2055920 swapFree=4180312/4192956
[pid=26135] ppid=26133 vsize=5360 CPUtime=0.36
/proc/26135/stat : 26135 (solve.sh) S 26133 26135 25825 0 -1 4194304 310 5441 0 1 0 0 33 3 16 0 1 0 426110811 5488640 236 996147200 4194304 4889804 548682068832 18446744073709551615 224627581764 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/26135/statm: 1340 236 195 169 0 51 0
Current children cumulated CPU time (s) 0.36
Current children cumulated vsize (KiB) 5360

Child status: 0
Real time (s): 0.588408
CPU time (s): 0.532918
CPU user time (s): 0.490925
CPU system time (s): 0.041993
CPU usage (%): 90.5695
Max. virtual memory (cumulated for all children) (KiB): 870392

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.490925
system time used= 0.041993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6314
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= 295
involuntary context switches= 257

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node49 at 2008-07-04 22:55:34
IDJOB=1106175
IDBENCH=56457
IDSOLVER=369
FILE ID=node49/1106175-1215204934
PBS_JOBID= 7881717
Free space on /tmp= 66524 MiB

SOLVER NAME= Minion/Tailor 2008-07-04
BENCH NAME= CPAI08/csp/os-taillard-4/normalized-os-taillard-4-95-4.xml
COMMAND LINE= DIR/solve.sh BENCHNAME
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1106175-1215204934/watcher-1106175-1215204934 -o /tmp/evaluation-result-1106175-1215204934/solver-1106175-1215204934 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/solve.sh HOME/instance-1106175-1215204934.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 0dc881dcf5f24d5a75bda8e44ec68a89
RANDOM SEED=977719537

node49.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		: 3000.249
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		: 3000.249
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:       1724160 kB
Buffers:         22960 kB
Cached:         200092 kB
SwapCached:       5496 kB
Active:         229236 kB
Inactive:        51392 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1724160 kB
SwapTotal:     4192956 kB
SwapFree:      4180312 kB
Dirty:           29616 kB
Writeback:           0 kB
Mapped:          65120 kB
Slab:            36156 kB
Committed_AS:   875760 kB
PageTables:       1880 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66492 MiB
End job on node49 at 2008-07-04 22:55:35