Trace number 2079950

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 1.545SAT 2.6026 2.676

DiagnosticValue
ASSIGNMENTS3736
CHECKS1771850
NODES3736

General information on the benchmark

Namecsp/travellingSalesman-20/
normalized-tsp-20-727_ext.xml
MD5SUMaeaf793ca70a0fb576c3a82ca5483bb5
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.57076
Satisfiable
(Un)Satisfiability was proved
Number of variables61
Number of constraints230
Maximum constraint arity3
Maximum domain size1001
Number of constraints which are defined in extension230
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.18/0.21	c mistral version 1.545
2.52/2.66	s SATISFIABLE
2.52/2.66	v 19 21 13 3 5 6 9 1 10 23 2 4 8 28 1 12 7 27 12 8 18 12 14 13 11 4 6 23 3 5 20 9 15 3 16 5 17 4 4 4 24 30 31 54 58 86 98 125 133 145 158 162 185 190 199 202 207 211 215 215 0
2.52/2.66	d CHECKS 1771854
2.52/2.66	d ASSIGNMENTS 3736
2.52/2.66	d NODES 3736 BACKTRACKS 3678 FAILURES 3678 RUNTIME 2.48 TOTALTIME 2.58 NODES/s 1506.45 CHECKS/s 714457

Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2079950-1247369104/watcher-2079950-1247369104 -o /tmp/evaluation-result-2079950-1247369104/solver-2079950-1247369104 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2079950-1247369104.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: 2.03 2.01 2.00 4/83 22802
/proc/meminfo: memFree=1515984/2055920 swapFree=4192812/4192956
[pid=22802] ppid=22800 vsize=18576 CPUtime=0
/proc/22802/stat : 22802 (runsolver) R 22800 22802 19160 0 -1 4194368 15 0 0 0 0 0 0 0 19 0 1 0 23974299 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 259415141671 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/22802/statm: 4644 284 249 26 0 2626 0

[startup+0.0887861 s]
/proc/loadavg: 2.03 2.01 2.00 4/83 22802
/proc/meminfo: memFree=1515984/2055920 swapFree=4192812/4192956
[pid=22802] ppid=22800 vsize=13032 CPUtime=0.07
/proc/22802/stat : 22802 (ld-linux.so.2) R 22800 22802 19160 0 -1 4194304 2487 0 0 0 6 1 0 0 18 0 1 0 23974299 13344768 2466 996147200 1448431616 1448550632 4294956208 18446744073709551615 134749365 0 0 4096 0 0 0 0 17 1 0 0
/proc/22802/statm: 3258 2466 400 29 0 2073 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 13032

[startup+0.102781 s]
/proc/loadavg: 2.03 2.01 2.00 4/83 22802
/proc/meminfo: memFree=1515984/2055920 swapFree=4192812/4192956
[pid=22802] ppid=22800 vsize=14880 CPUtime=0.08
/proc/22802/stat : 22802 (ld-linux.so.2) R 22800 22802 19160 0 -1 4194304 2968 0 0 0 7 1 0 0 18 0 1 0 23974299 15237120 2947 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157375106 0 0 4096 0 0 0 0 17 1 0 0
/proc/22802/statm: 3720 2947 400 29 0 2535 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 14880

[startup+0.302564 s]
/proc/loadavg: 2.03 2.01 2.00 4/83 22802
/proc/meminfo: memFree=1515984/2055920 swapFree=4192812/4192956
[pid=22802] ppid=22800 vsize=17256 CPUtime=0.24
/proc/22802/stat : 22802 (ld-linux.so.2) R 22800 22802 19160 0 -1 4194304 3589 0 0 0 23 1 0 0 19 0 1 0 23974299 17670144 3568 996147200 1448431616 1448550632 4294956208 18446744073709551615 134850089 0 0 4096 0 0 0 0 17 1 0 0
/proc/22802/statm: 4314 3568 425 29 0 3129 0
Current children cumulated CPU time (s) 0.24
Current children cumulated vsize (KiB) 17256

[startup+0.707455 s]
/proc/loadavg: 2.03 2.01 2.00 4/83 22802
/proc/meminfo: memFree=1515984/2055920 swapFree=4192812/4192956
[pid=22802] ppid=22800 vsize=17388 CPUtime=0.64
/proc/22802/stat : 22802 (ld-linux.so.2) R 22800 22802 19160 0 -1 4194304 3608 0 0 0 63 1 0 0 23 0 1 0 23974299 17805312 3587 996147200 1448431616 1448550632 4294956208 18446744073709551615 135305452 0 0 4096 0 0 0 0 17 1 0 0
/proc/22802/statm: 4347 3587 426 29 0 3162 0
Current children cumulated CPU time (s) 0.64
Current children cumulated vsize (KiB) 17388

[startup+1.50275 s]
/proc/loadavg: 2.02 2.01 2.00 3/84 22803
/proc/meminfo: memFree=1498248/2055920 swapFree=4192812/4192956
[pid=22802] ppid=22800 vsize=17388 CPUtime=1.43
/proc/22802/stat : 22802 (ld-linux.so.2) R 22800 22802 19160 0 -1 4194304 3612 0 0 0 142 1 0 0 25 0 1 0 23974299 17805312 3591 996147200 1448431616 1448550632 4294956208 18446744073709551615 134849974 0 0 4096 0 0 0 0 17 1 0 0
/proc/22802/statm: 4347 3591 426 29 0 3162 0
Current children cumulated CPU time (s) 1.43
Current children cumulated vsize (KiB) 17388

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

[startup+2.30192 s]
/proc/loadavg: 2.02 2.01 2.00 4/84 22803
/proc/meminfo: memFree=1494664/2055920 swapFree=4192812/4192956
[pid=22802] ppid=22800 vsize=17388 CPUtime=2.22
/proc/22802/stat : 22802 (ld-linux.so.2) R 22800 22802 19160 0 -1 4194304 3613 0 0 0 221 1 0 0 25 0 1 0 23974299 17805312 3592 996147200 1448431616 1448550632 4294956208 18446744073709551615 134850059 0 0 4096 0 0 0 0 17 1 0 0
/proc/22802/statm: 4347 3592 426 29 0 3162 0
Current children cumulated CPU time (s) 2.22
Current children cumulated vsize (KiB) 17388

[startup+2.50193 s]
/proc/loadavg: 2.02 2.01 2.00 4/84 22803
/proc/meminfo: memFree=1494664/2055920 swapFree=4192812/4192956
[pid=22802] ppid=22800 vsize=17388 CPUtime=2.42
/proc/22802/stat : 22802 (ld-linux.so.2) R 22800 22802 19160 0 -1 4194304 3613 0 0 0 241 1 0 0 25 0 1 0 23974299 17805312 3592 996147200 1448431616 1448550632 4294956208 18446744073709551615 134829017 0 0 4096 0 0 0 0 17 1 0 0
/proc/22802/statm: 4347 3592 426 29 0 3162 0
Current children cumulated CPU time (s) 2.42
Current children cumulated vsize (KiB) 17388

[startup+2.60198 s]
/proc/loadavg: 2.02 2.01 2.00 4/84 22803
/proc/meminfo: memFree=1494664/2055920 swapFree=4192812/4192956
[pid=22802] ppid=22800 vsize=17388 CPUtime=2.52
/proc/22802/stat : 22802 (ld-linux.so.2) R 22800 22802 19160 0 -1 4194304 3613 0 0 0 251 1 0 0 25 0 1 0 23974299 17805312 3592 996147200 1448431616 1448550632 4294956208 18446744073709551615 135277936 0 0 4096 0 0 0 0 17 1 0 0
/proc/22802/statm: 4347 3592 426 29 0 3162 0
Current children cumulated CPU time (s) 2.52
Current children cumulated vsize (KiB) 17388

Child status: 0
Real time (s): 2.676
CPU time (s): 2.6026
CPU user time (s): 2.58161
CPU system time (s): 0.020996
CPU usage (%): 97.2571
Max. virtual memory (cumulated for all children) (KiB): 17388

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.58161
system time used= 0.020996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3653
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= 100

runsolver used 0.005999 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node42 at 2009-07-12 05:25:04
IDJOB=2079950
IDBENCH=56973
IDSOLVER=769
FILE ID=node42/2079950-1247369104
PBS_JOBID= 9507073
Free space on /tmp= 66308 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/travellingSalesman-20/normalized-tsp-20-727_ext.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2079950-1247369104/watcher-2079950-1247369104 -o /tmp/evaluation-result-2079950-1247369104/solver-2079950-1247369104 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2079950-1247369104.xml

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

MD5SUM BENCH= aeaf793ca70a0fb576c3a82ca5483bb5
RANDOM SEED=1514226113

node42.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		: 3000.283
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		: 3000.283
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:       1516464 kB
Buffers:         37616 kB
Cached:         157272 kB
SwapCached:          0 kB
Active:         414008 kB
Inactive:        72472 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1516464 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1496 kB
Writeback:           0 kB
Mapped:         307204 kB
Slab:            37856 kB
Committed_AS:   881504 kB
PageTables:       2308 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= 66308 MiB
End job on node42 at 2009-07-12 05:25:06