Trace number 2072910

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
Mistral 1.545UNSAT 26.7639 26.8776

DiagnosticValue
ASSIGNMENTS264882
CHECKS30931900
NODES264882

General information on the benchmark

Namecsp/pseudoGLB/
normalized-t2001-13queen13-1111226368.xml
MD5SUM1393289e82104fc5268dbcccb4ac7b0e
Bench CategoryAlldiff+Elt+WSum (alldiff,element,weightedsum)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.78127
Satisfiable
(Un)Satisfiability was proved
Number of variables169
Number of constraints101
Maximum constraint arity169
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)weightedsum(101)

Solver Data 

0.18/0.21	c mistral version 1.545
26.68/26.87	s UNSATISFIABLE
26.68/26.87	d CHECKS 30931875
26.68/26.87	d ASSIGNMENTS 264882
26.68/26.87	d NODES 264882 BACKTRACKS 264583 FAILURES 264584 RUNTIME 26.75 TOTALTIME 26.76 NODES/s 9902.13 CHECKS/s 1.15633e+06

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-2072910-1247357164/watcher-2072910-1247357164 -o /tmp/evaluation-result-2072910-1247357164/solver-2072910-1247357164 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2072910-1247357164.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: 2.00 2.05 2.01 4/72 16540
/proc/meminfo: memFree=1910256/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=18576 CPUtime=0
/proc/16540/stat : 16540 (runsolver) R 16538 16540 15330 0 -1 4194368 15 0 0 0 0 0 0 0 19 0 1 0 22782694 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 269028486439 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/16540/statm: 4644 284 249 26 0 2626 0

[startup+0.18467 s]
/proc/loadavg: 2.00 2.05 2.01 4/72 16540
/proc/meminfo: memFree=1910256/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=5072 CPUtime=0.17
/proc/16540/stat : 16540 (ld-linux.so.2) R 16538 16540 15330 0 -1 4194304 534 0 0 0 17 0 0 0 18 0 1 0 22782694 5193728 513 996147200 1448431616 1448550632 4294956208 18446744073709551615 135161293 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 1268 513 414 29 0 83 0
Current children cumulated CPU time (s) 0.17
Current children cumulated vsize (KiB) 5072

[startup+0.201668 s]
/proc/loadavg: 2.00 2.05 2.01 4/72 16540
/proc/meminfo: memFree=1910256/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=5072 CPUtime=0.18
/proc/16540/stat : 16540 (ld-linux.so.2) R 16538 16540 15330 0 -1 4194304 534 0 0 0 18 0 0 0 18 0 1 0 22782694 5193728 513 996147200 1448431616 1448550632 4294956208 18446744073709551615 134896995 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 1268 513 414 29 0 83 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 5072

[startup+0.301683 s]
/proc/loadavg: 2.00 2.05 2.01 4/72 16540
/proc/meminfo: memFree=1910256/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=5072 CPUtime=0.28
/proc/16540/stat : 16540 (ld-linux.so.2) R 16538 16540 15330 0 -1 4194304 534 0 0 0 28 0 0 0 19 0 1 0 22782694 5193728 513 996147200 1448431616 1448550632 4294956208 18446744073709551615 134817227 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 1268 513 414 29 0 83 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5072

[startup+0.701748 s]
/proc/loadavg: 2.00 2.05 2.01 4/72 16540
/proc/meminfo: memFree=1910256/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=5072 CPUtime=0.68
/proc/16540/stat : 16540 (ld-linux.so.2) R 16538 16540 15330 0 -1 4194304 534 0 0 0 68 0 0 0 23 0 1 0 22782694 5193728 513 996147200 1448431616 1448550632 4294956208 18446744073709551615 134817278 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 1268 513 414 29 0 83 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 5072

[startup+1.50188 s]
/proc/loadavg: 2.00 2.05 2.01 3/73 16541
/proc/meminfo: memFree=1909800/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=5072 CPUtime=1.48
/proc/16540/stat : 16540 (ld-linux.so.2) R 16538 16540 15330 0 -1 4194304 534 0 0 0 148 0 0 0 25 0 1 0 22782694 5193728 513 996147200 1448431616 1448550632 4294956208 18446744073709551615 135259290 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 1268 513 414 29 0 83 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 5072

[startup+3.10113 s]
/proc/loadavg: 2.00 2.05 2.01 3/73 16541
/proc/meminfo: memFree=1909736/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=5072 CPUtime=3.07
/proc/16540/stat : 16540 (ld-linux.so.2) R 16538 16540 15330 0 -1 4194304 534 0 0 0 307 0 0 0 25 0 1 0 22782694 5193728 513 996147200 1448431616 1448550632 4294956208 18446744073709551615 135259312 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 1268 513 414 29 0 83 0
Current children cumulated CPU time (s) 3.07
Current children cumulated vsize (KiB) 5072

[startup+6.30164 s]
/proc/loadavg: 2.00 2.05 2.01 3/73 16541
/proc/meminfo: memFree=1909736/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=5072 CPUtime=6.26
/proc/16540/stat : 16540 (ld-linux.so.2) R 16538 16540 15330 0 -1 4194304 534 0 0 0 626 0 0 0 25 0 1 0 22782694 5193728 513 996147200 1448431616 1448550632 4294956208 18446744073709551615 134817267 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 1268 513 414 29 0 83 0
Current children cumulated CPU time (s) 6.26
Current children cumulated vsize (KiB) 5072

[startup+12.7017 s]
/proc/loadavg: 2.00 2.05 2.01 3/73 16541
/proc/meminfo: memFree=1909800/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=5072 CPUtime=12.63
/proc/16540/stat : 16540 (ld-linux.so.2) R 16538 16540 15330 0 -1 4194304 534 0 0 0 1263 0 0 0 25 0 1 0 22782694 5193728 513 996147200 1448431616 1448550632 4294956208 18446744073709551615 135259312 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 1268 513 414 29 0 83 0
Current children cumulated CPU time (s) 12.63
Current children cumulated vsize (KiB) 5072

[startup+25.5017 s]
/proc/loadavg: 2.00 2.05 2.01 3/73 16541
/proc/meminfo: memFree=1909864/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=5072 CPUtime=25.38
/proc/16540/stat : 16540 (ld-linux.so.2) R 16538 16540 15330 0 -1 4194304 534 0 0 0 2538 0 0 0 25 0 1 0 22782694 5193728 513 996147200 1448431616 1448550632 4294956208 18446744073709551615 134817260 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 1268 513 414 29 0 83 0
Current children cumulated CPU time (s) 25.38
Current children cumulated vsize (KiB) 5072

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

[startup+25.6017 s]
/proc/loadavg: 2.00 2.05 2.01 3/73 16541
/proc/meminfo: memFree=1909864/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=5072 CPUtime=25.48
/proc/16540/stat : 16540 (ld-linux.so.2) R 16538 16540 15330 0 -1 4194304 534 0 0 0 2548 0 0 0 25 0 1 0 22782694 5193728 513 996147200 1448431616 1448550632 4294956208 18446744073709551615 135259293 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 1268 513 414 29 0 83 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 5072

[startup+26.4019 s]
/proc/loadavg: 2.00 2.05 2.01 3/73 16541
/proc/meminfo: memFree=1909864/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=5072 CPUtime=26.28
/proc/16540/stat : 16540 (ld-linux.so.2) R 16538 16540 15330 0 -1 4194304 534 0 0 0 2628 0 0 0 25 0 1 0 22782694 5193728 513 996147200 1448431616 1448550632 4294956208 18446744073709551615 135259312 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 1268 513 414 29 0 83 0
Current children cumulated CPU time (s) 26.28
Current children cumulated vsize (KiB) 5072

[startup+26.8019 s]
/proc/loadavg: 2.00 2.05 2.01 3/73 16541
/proc/meminfo: memFree=1909864/2055920 swapFree=4192812/4192956
[pid=16540] ppid=16538 vsize=5072 CPUtime=26.68
/proc/16540/stat : 16540 (ld-linux.so.2) R 16538 16540 15330 0 -1 4194304 534 0 0 0 2668 0 0 0 25 0 1 0 22782694 5193728 513 996147200 1448431616 1448550632 4294956208 18446744073709551615 135171379 0 0 4096 0 0 0 0 17 1 0 0
/proc/16540/statm: 1268 513 414 29 0 83 0
Current children cumulated CPU time (s) 26.68
Current children cumulated vsize (KiB) 5072

Child status: 0
Real time (s): 26.8776
CPU time (s): 26.7639
CPU user time (s): 26.7579
CPU system time (s): 0.005999
CPU usage (%): 99.5771
Max. virtual memory (cumulated for all children) (KiB): 5072

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 26.7579
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 567
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= 24
involuntary context switches= 333

runsolver used 0.040993 second user time and 0.066989 second system time

The end

Launcher Data 

Begin job on node26 at 2009-07-12 02:06:04
IDJOB=2072910
IDBENCH=55865
IDSOLVER=769
FILE ID=node26/2072910-1247357164
PBS_JOBID= 9506916
Free space on /tmp= 66368 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/pseudoGLB/normalized-t2001-13queen13-1111226368.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2072910-1247357164/watcher-2072910-1247357164 -o /tmp/evaluation-result-2072910-1247357164/solver-2072910-1247357164 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2072910-1247357164.xml

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

MD5SUM BENCH= 1393289e82104fc5268dbcccb4ac7b0e
RANDOM SEED=1104049838

node26.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		: 3000.281
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		: 3000.281
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:       1910736 kB
Buffers:         15292 kB
Cached:          66376 kB
SwapCached:          0 kB
Active:          73312 kB
Inactive:        27180 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1910736 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1364 kB
Writeback:           0 kB
Mapped:          30404 kB
Slab:            30040 kB
Committed_AS:   141996 kB
PageTables:       1684 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 node26 at 2009-07-12 02:06:31